/* ═══════════════════════════════════════════════════════════════
   LIFT UP — Proje Benzerlik Analizi Sistemi
   Modern Design System
   ═══════════════════════════════════════════════════════════════ */

/* ─── CSS Custom Properties (Design Tokens) ────────────────── */
:root {
    /* TUSAŞ Kurumsal Renk Paleti */
    --tusas-navy: #1F2D5A;
    --tusas-blue: #1F2D5A;
    --tusas-sky: #38bdf8;
    --tusas-red: #E30613;
    --tusas-dark: #0d1224;
    --tusas-white: #ffffff;

    /* Primary Palette */
    --primary-50: #edf1f8;
    --primary-100: #dce4f0;
    --primary-200: #b9c9e1;
    --primary-300: #8aa5cc;
    --primary-400: #5a7fb5;
    --primary-500: #2c4f8a;
    --primary-600: #1F2D5A;
    --primary-700: #192447;
    --primary-800: #131b35;
    --primary-900: #0d1224;

    /* Neutral Palette */
    --neutral-50: #f8fafc;
    --neutral-100: #f1f5f9;
    --neutral-200: #e2e8f0;
    --neutral-300: #cbd5e1;
    --neutral-400: #94a3b8;
    --neutral-500: #64748b;
    --neutral-600: #475569;
    --neutral-700: #334155;
    --neutral-800: #1e293b;
    --neutral-900: #0f172a;

    /* Semantic Colors */
    --success-50: #f0fdf4;
    --success-100: #dcfce7;
    --success-200: #bbf7d0;
    --success-500: #22c55e;
    --success-600: #16a34a;
    --success-700: #15803d;

    --warning-50: #fffbeb;
    --warning-100: #fef3c7;
    --warning-200: #fde68a;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
    --warning-700: #b45309;

    --danger-50: #fef2f2;
    --danger-100: #fee2e2;
    --danger-200: #fecaca;
    --danger-300: #fca5a5;
    --danger-500: #E30613;
    --danger-600: #c70511;
    --danger-700: #a0040e;

    --orange-50: #fff7ed;
    --orange-100: #ffedd5;
    --orange-200: #fed7aa;
    --orange-500: #f97316;
    --orange-600: #ea580c;
    --orange-700: #c2410c;

    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;

    /* Background & Surface */
    --bg-body: #f0f4ff;
    --bg-surface: #ffffff;
    --bg-surface-glass: rgba(255, 255, 255, 0.78);
    --bg-subtle: #edf0f5;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Orbitron', 'Inter', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.25rem;
    --radius-3xl: 1.75rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
    --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.10), 0 6px 12px -6px rgba(15, 23, 42, 0.06);
    --shadow-xl: 0 22px 40px -12px rgba(15, 23, 42, 0.18), 0 10px 18px -10px rgba(15, 23, 42, 0.08);
    --shadow-glow: 0 12px 40px -12px rgba(31, 45, 90, 0.35);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Layout */
    --container-max: 1280px;
    --header-height: 68px;
}


/* ─── Reset & Base ─────────────────────────────────────────── */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--neutral-800);
    background: linear-gradient(135deg, #f0f4ff 0%, #eef2fb 100%) fixed;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}

/* home-view scroll intentionally unrestricted — footer presence requires free scroll */

a {
    color: var(--primary-600);
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

button {
    cursor: pointer;
    font-family: inherit;
}


/* ─── Decorative background mesh ───────────────────────────── */
.bg-mesh {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.bg-mesh__blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.45;
    will-change: transform;
}

.bg-mesh__blob--1 {
    width: 520px;
    height: 520px;
    top: -200px;
    left: -160px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.30) 0%, transparent 70%);
    animation: float-slow 22s ease-in-out infinite;
}

.bg-mesh__blob--2 {
    width: 480px;
    height: 480px;
    top: -120px;
    right: -180px;
    background: radial-gradient(circle, rgba(31, 45, 90, 0.22) 0%, transparent 70%);
    animation: float-slow 28s ease-in-out infinite reverse;
}

.bg-mesh__blob--3 {
    width: 600px;
    height: 600px;
    bottom: -300px;
    left: 30%;
    background: radial-gradient(circle, rgba(109, 40, 217, 0.16) 0%, transparent 70%);
    animation: float-slow 32s ease-in-out infinite;
}

@keyframes float-slow {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -20px) scale(1.05); }
}


/* ═══════════════════════════════════════════════════════════════
   HEADER (Navbar)
   ═══════════════════════════════════════════════════════════════ */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: saturate(180%) blur(18px);
    -webkit-backdrop-filter: saturate(180%) blur(18px);
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    box-shadow: 0 1px 0 rgba(15, 23, 42, 0.02);
}

.header__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-8);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
}

.header__brand {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    min-width: 0;
}

.header__logo {
    display: flex;
    align-items: center;
    height: 44px;
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.header__logo:hover {
    transform: scale(1.04);
}

.header__logo-img {
    height: 100%;
    width: auto;
    object-fit: contain;
    display: block;
    padding: 4px 8px;
    border-radius: 6px;
    background: transparent;
    transition: background var(--transition-base);
}

.header__divider {
    width: 1px;
    height: 32px;
    background: linear-gradient(180deg, transparent, rgba(15, 23, 42, 0.18), transparent);
    flex-shrink: 0;
}

.header__text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    min-width: 0;
}

.header__title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 2px;
    display: flex;
    align-items: baseline;
    gap: 0.35em;
    line-height: 1.1;
}

.header__title-tusas {
    color: var(--tusas-navy);
}

.header__title-lift {
    color: var(--tusas-red);
}

.header__subtitle {
    font-size: 0.65rem;
    color: var(--neutral-500);
    font-weight: 500;
    letter-spacing: 0.02em;
    margin-top: 3px;
    line-height: 1.3;
    max-width: 280px;
}

.header__meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

/* ─── Header Right Wrapper ─────────────────────────────────── */
.header__right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

.header__sep {
    width: 1px;
    height: 22px;
    background: linear-gradient(180deg, transparent, rgba(15, 23, 42, 0.14), transparent);
    flex-shrink: 0;
}

[data-theme="dark"] .header__sep {
    background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.12), transparent);
}


/* ─── Header Navigation Tabs ───────────────────────────────── */
.header__nav {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    flex-shrink: 0;
}

.nav-tab {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--neutral-500);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: color var(--transition-fast), background var(--transition-fast);
    white-space: nowrap;
    line-height: 1;
    letter-spacing: 0.01em;
}

.nav-tab::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: calc(100% - 16px);
    height: 2px;
    border-radius: 2px 2px 0 0;
    background: var(--tusas-navy);
    transition: transform var(--transition-fast);
}

.nav-tab:hover:not(.active) {
    color: var(--primary-700);
    background: rgba(31, 45, 90, 0.05);
}

.nav-tab.active {
    color: var(--tusas-navy);
    font-weight: 700;
    background: rgba(31, 45, 90, 0.06);
}

.nav-tab.active::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-tab__label {
    letter-spacing: 0.01em;
}

.nav-tab--link {
    text-decoration: none;
    color: var(--neutral-500);
}

.nav-tab--link:hover {
    color: var(--primary-700);
    background: rgba(31, 45, 90, 0.05);
}

.nav-tab--link::after {
    display: none;
}

/* ─── Dark Mode — Nav Tabs ─────────────────────────────────── */
[data-theme="dark"] .nav-tab {
    color: var(--neutral-400);
}

[data-theme="dark"] .nav-tab:hover:not(.active) {
    color: #e2e8f0;
    background: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .nav-tab.active {
    color: var(--tusas-sky);
    background: rgba(56, 189, 248, 0.08);
}

[data-theme="dark"] .nav-tab.active::after {
    background: var(--tusas-sky);
}

[data-theme="dark"] .nav-tab--link {
    color: var(--neutral-400);
}

[data-theme="dark"] .nav-tab--link:hover {
    color: #e2e8f0;
    background: rgba(255, 255, 255, 0.06);
}


/* ─── Views (Tab Panels) ───────────────────────────────────── */
.view {
    display: none;
}

.view.view--active {
    display: block;
    animation: fadeIn 0.3s ease-out;
}


/* ═══════════════════════════════════════════════════════════════
   MAIN
   ═══════════════════════════════════════════════════════════════ */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
}


/* ═══════════════════════════════════════════════════════════════
   CONTENT GRID — Hero + Form (single column, full width)
   ═══════════════════════════════════════════════════════════════ */
.content-grid {
    flex: 1;
    padding: var(--space-6) 0 var(--space-6);
    animation: fadeIn 0.5s ease-out;
    display: flex;
    flex-direction: column;
}

.content-grid__container {
    max-width: var(--container-max);
    width: 100%;
    margin: 0 auto;
    padding: 0 var(--space-8);
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    flex: 1;
    justify-content: center;
}


/* ─── Hero (Compact brand text) ────────────────────────────── */
.hero {
    text-align: center;
    animation: fadeInUp 0.5s ease-out 0.05s both;
}

.hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    background: rgba(31, 45, 90, 0.06);
    border: 1px solid rgba(31, 45, 90, 0.10);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--primary-600);
    letter-spacing: 0.02em;
    margin-bottom: var(--space-3);
}

.hero__eyebrow-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--tusas-sky);
    box-shadow: 0 0 8px rgba(56, 189, 248, 0.5);
    animation: pulse-dot 2s ease-in-out infinite;
}

.hero__title {
    display: inline-flex;
    align-items: baseline;
    gap: var(--space-3);
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    letter-spacing: 3px;
    line-height: 1;
    margin-bottom: var(--space-3);
}

.hero__title-main {
    color: var(--tusas-navy);
}

.hero__title-accent {
    background: linear-gradient(135deg, #38bdf8 0%, #6d28d9 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero__desc {
    font-size: var(--font-size-sm);
    color: var(--neutral-600);
    line-height: 1.65;
    max-width: 720px;
    margin: 0 auto;
    font-weight: 400;
}


/* ─── Form Panel ───────────────────────────────────────────── */
.form-panel {
    background: var(--bg-surface);
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-radius: var(--radius-3xl);
    padding: var(--space-6) var(--space-8);
    box-shadow: var(--shadow-xl);
    animation: fadeInUp 0.5s ease-out 0.15s both;
    position: relative;
    overflow: hidden;
}

.form-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--tusas-navy) 0%, #38bdf8 50%, #6d28d9 100%);
}

.form-panel__header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--neutral-100);
}

.form-panel__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(31, 45, 90, 0.08), rgba(56, 189, 248, 0.10));
    color: var(--primary-600);
    flex-shrink: 0;
}

.form-panel__title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--neutral-800);
    margin-bottom: 2px;
    line-height: 1.2;
}

.form-panel__subtitle {
    font-size: var(--font-size-sm);
    color: var(--neutral-500);
    font-weight: 400;
    line-height: 1.4;
}

.form {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--space-4) var(--space-5);
}

.form__group {
    grid-column: span 6;
    margin: 0;
    min-width: 0;
}

.form__group--full {
    grid-column: span 12;
}

.form__label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--neutral-700);
    margin-bottom: var(--space-2);
}

.form__label-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: var(--radius-md);
    background: rgba(31, 45, 90, 0.07);
    color: var(--primary-600);
    flex-shrink: 0;
}

.form__label-required {
    color: var(--danger-500);
    font-weight: 700;
}

.form__input,
.form__textarea {
    width: 100%;
    padding: 12px 14px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    color: var(--neutral-800);
    background: var(--neutral-50);
    border: 1.5px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    outline: none;
}

.form__input::placeholder,
.form__textarea::placeholder {
    color: var(--neutral-400);
    font-size: var(--font-size-sm);
}

.form__input:hover,
.form__textarea:hover {
    border-color: var(--neutral-300);
    background: var(--bg-surface);
}

.form__input:focus,
.form__textarea:focus {
    border-color: var(--primary-500);
    background: var(--bg-surface);
    box-shadow: 0 0 0 4px rgba(31, 45, 90, 0.08);
}

.form__input.error,
.form__textarea.error {
    border-color: var(--danger-500);
    background: var(--danger-50);
}

.form__input.error:focus,
.form__textarea.error:focus {
    box-shadow: 0 0 0 4px rgba(227, 6, 19, 0.12);
}

.form__textarea {
    resize: vertical;
    min-height: 96px;
    line-height: 1.55;
}

.form__meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 4px;
    min-height: 16px;
}

.form__error {
    font-size: var(--font-size-xs);
    color: var(--danger-600);
    font-weight: 500;
    opacity: 0;
    transform: translateY(-4px);
    transition: all var(--transition-fast);
}

.form__error.visible {
    opacity: 1;
    transform: translateY(0);
}

.form__counter {
    font-size: 0.7rem;
    color: var(--neutral-400);
    font-weight: 500;
    font-variant-numeric: tabular-nums;
    margin-left: auto;
}

.form__counter--hint {
    font-style: italic;
}


/* ─── AI Önerisi Butonu ─────────────────────────────────────── */
.form__label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.form__label-row .form__label {
    margin-bottom: 0;
}

.ai-suggest-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    font-family: var(--font-family);
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: #ffffff;
    background: linear-gradient(135deg, #6d28d9 0%, #2563eb 100%);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
    box-shadow: 0 4px 12px rgba(109, 40, 217, .28);
    line-height: 1.2;
    white-space: nowrap;
}

.ai-suggest-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(109, 40, 217, .38);
}

.ai-suggest-btn:active:not(:disabled) {
    transform: translateY(0);
}

.ai-suggest-btn:disabled {
    opacity: .65;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.ai-suggest-btn[hidden] { display: none; }

.ai-suggest-btn__content,
.ai-suggest-btn__loading {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.ai-suggest-btn__loading[hidden],
.ai-suggest-btn__content[hidden] { display: none; }

.ai-suggest-btn__icon { flex-shrink: 0; }

.ai-suggest-btn__spinner {
    width: 12px;
    height: 12px;
    border: 2px solid rgba(255, 255, 255, .35);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: aiSpin .7s linear infinite;
}

@keyframes aiSpin { to { transform: rotate(360deg); } }

.ai-suggest-msg {
    margin-top: 6px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 6px 10px;
    border-radius: var(--radius-md);
    line-height: 1.45;
}

.ai-suggest-msg[hidden] { display: none; }

.ai-suggest-msg.success {
    color: #047857;
    background: rgba(16, 185, 129, .08);
    border: 1px solid rgba(16, 185, 129, .25);
}

.ai-suggest-msg.error {
    color: #b91c1c;
    background: rgba(239, 68, 68, .07);
    border: 1px solid rgba(239, 68, 68, .25);
}

.ai-suggest-msg.info {
    color: #1e40af;
    background: rgba(59, 130, 246, .07);
    border: 1px solid rgba(59, 130, 246, .25);
}


/* ─── Submit Button ────────────────────────────────────────── */
.form__submit-wrap {
    grid-column: span 12;
    display: flex;
    justify-content: stretch;
    margin-top: var(--space-2);
}

.form__submit {
    width: 100%;
    padding: 14px var(--space-6);
    font-size: var(--font-size-base);
    font-weight: 700;
    color: #ffffff;
    background: linear-gradient(135deg, var(--tusas-navy) 0%, #2c4f8a 100%);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: 0 8px 20px -4px rgba(31, 45, 90, 0.35);
    letter-spacing: 0.02em;
}

.form__submit::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.20), transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.form__submit:hover:not(:disabled) {
    box-shadow: 0 12px 28px -6px rgba(31, 45, 90, 0.45);
    transform: translateY(-1px);
}

.form__submit:hover:not(:disabled)::before {
    opacity: 1;
}

.form__submit:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 6px 14px -4px rgba(31, 45, 90, 0.35);
}

.form__submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.form__submit-content {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    position: relative;
    z-index: 1;
}

.form__submit-icon {
    transition: transform var(--transition-base);
}

.form__submit:hover:not(:disabled) .form__submit-icon {
    transform: scale(1.12) rotate(-6deg);
}

.form__submit-loading {
    display: none;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    position: relative;
    z-index: 1;
}

.form__submit.loading .form__submit-content {
    display: none;
}

.form__submit.loading .form__submit-loading {
    display: inline-flex;
}


/* ─── Spinner ──────────────────────────────────────────────── */
.spinner {
    width: 20px;
    height: 20px;
    border: 2.5px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}


/* ═══════════════════════════════════════════════════════════════
   RESULTS SECTION
   ═══════════════════════════════════════════════════════════════ */
.results-section {
    padding: var(--space-6) 0;
    animation: fadeInUp 0.5s ease-out;
}

.results-section__container {
    max-width: 100%;
    width: 100%;
    margin: 0 auto;
    padding: 0 var(--space-4);
}


/* ─── Query Summary ──────────────────────────────────────────── */
.query-summary {
    background: linear-gradient(135deg, #f0f4ff 0%, #eef2fb 100%);
    border: 1px solid var(--primary-100);
    border-radius: var(--radius-xl);
    padding: var(--space-5) var(--space-6);
    margin-bottom: var(--space-6);
    box-shadow: var(--shadow-md);
    animation: fadeInUp 0.4s ease-out;
    position: relative;
    overflow: hidden;
}

.query-summary::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--tusas-navy) 0%, var(--primary-400) 60%, transparent 100%);
}

.query-summary__heading {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--primary-700);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid rgba(31, 45, 90, 0.10);
}

.query-summary__heading svg {
    color: var(--primary-500);
}

.query-summary__fields {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.query-summary__field {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    background: rgba(255, 255, 255, 0.70);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--primary-400);
    padding: var(--space-3) var(--space-4);
    backdrop-filter: blur(4px);
}

.query-summary__label {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--primary-600);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.query-summary__value {
    font-size: var(--font-size-sm);
    color: var(--neutral-800);
    line-height: 1.75;
    font-weight: 500;
}

.query-summary__value--abstract {
    color: var(--neutral-700);
    font-weight: 400;
    text-align: justify;
    text-align-last: left;
    hyphens: auto;
}


/* ─── Results Toolbar (Top-K + Year + Sort) ───────────────── */
.results-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 0;
    background: var(--bg-surface);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-xl);
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-6);
    box-shadow: var(--shadow-sm);
    animation: fadeInUp 0.4s ease-out 0.05s both;
}

.results-toolbar__field {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    flex: 0 0 auto;
    padding: 0 var(--space-4);
}

.results-toolbar__field:first-child {
    padding-left: 0;
}

.results-toolbar__field:last-child {
    padding-right: 0;
}

.results-toolbar__field + .results-toolbar__field {
    border-left: 1.5px solid var(--neutral-200);
}

.results-toolbar__label {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--neutral-400);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.results-toolbar__label-icon {
    display: inline-flex;
    align-items: center;
    color: var(--neutral-500);
    flex-shrink: 0;
}

.results-toolbar__input-group {
    display: inline-flex;
    align-items: stretch;
    height: 40px;
    border: 1.5px solid var(--neutral-200);
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
    width: max-content;
}

.results-toolbar__input-group:focus-within {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.results-toolbar__input {
    width: 80px;
    padding: 0 var(--space-3);
    border: none;
    background: transparent;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--neutral-800);
    font-family: inherit;
    font-variant-numeric: tabular-nums;
    -moz-appearance: textfield;
    appearance: textfield;
}

.results-toolbar__input::-webkit-outer-spin-button,
.results-toolbar__input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.results-toolbar__input::placeholder {
    color: var(--neutral-400);
    font-weight: 500;
}

.results-toolbar__input:focus {
    outline: none;
}

.results-toolbar__btn {
    flex: 0 0 auto;
    width: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-left: 1.5px solid var(--neutral-200);
    background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
    color: #fff;
    cursor: pointer;
    transition: filter 0.15s, opacity 0.2s;
    font-family: inherit;
}

.results-toolbar__btn:hover:not(:disabled) {
    filter: brightness(1.08);
}

.results-toolbar__btn:active:not(:disabled) {
    filter: brightness(0.95);
}

.results-toolbar__btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.results-toolbar__btn-content,
.results-toolbar__btn-loading {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.results-toolbar__btn-content[hidden],
.results-toolbar__btn-loading[hidden] {
    display: none;
}

.results-toolbar__spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    display: inline-block;
}

.results-toolbar__select {
    width: 160px;
    height: 40px;
    padding: 0 2rem 0 var(--space-3);
    border: 1.5px solid var(--neutral-200);
    border-radius: var(--radius-md);
    background: var(--bg-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E") no-repeat right var(--space-3) center;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--neutral-700);
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.results-toolbar__select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.results-toolbar__select.active {
    border-color: var(--primary-500);
    background-color: var(--primary-50);
    color: var(--primary-700);
}

.results-toolbar__sort {
    display: inline-flex;
    background: var(--neutral-100);
    border: 1.5px solid var(--neutral-200);
    border-radius: var(--radius-md);
    padding: 3px;
    height: 40px;
    gap: 2px;
}

.results-toolbar__sort-btn {
    display: inline-flex;
    align-items: center;
    padding: 0 var(--space-3);
    border: none;
    background: transparent;
    color: var(--neutral-600);
    font-size: var(--font-size-xs);
    font-weight: 600;
    cursor: pointer;
    border-radius: calc(var(--radius-md) - 4px);
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
    white-space: nowrap;
    font-family: inherit;
}

.results-toolbar__sort-btn:hover:not(.active) {
    color: var(--neutral-800);
}

.results-toolbar__sort-btn.active {
    background: var(--bg-surface);
    color: var(--primary-600);
    box-shadow: var(--shadow-sm);
}

@media (max-width: 768px) {
    .results-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-3);
    }

    .results-toolbar__field {
        padding: 0 !important;
        border-left: none !important;
    }

    .results-toolbar__select {
        width: 100%;
    }

    .results-toolbar__sort {
        width: 100%;
        justify-content: stretch;
    }

    .results-toolbar__sort-btn {
        flex: 1;
        justify-content: center;
    }
}


/* ─── Results Header ───────────────────────────────────────── */
.results__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.results__title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--neutral-800);
}

.results__title svg {
    color: var(--primary-500);
}

.results__count {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--primary-600);
    background: var(--primary-50);
    border: 1px solid var(--primary-200);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
}


/* ─── Project Cards ────────────────────────────────────────── */
.results__cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.project-card {
    background: var(--bg-surface);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-base);
    animation: fadeInUp 0.4s ease-out both;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    border-radius: 4px 0 0 4px;
    transition: all var(--transition-base);
}

.project-card.critical::before {
    background: linear-gradient(180deg, var(--danger-500), var(--danger-600));
}

.project-card.high::before {
    background: linear-gradient(180deg, var(--orange-500), var(--orange-600));
}

.project-card.medium::before {
    background: linear-gradient(180deg, var(--warning-500), var(--warning-600));
}

.project-card.low::before {
    background: linear-gradient(180deg, var(--success-500), var(--success-600));
}

.project-card.irrelevant::before {
    background: linear-gradient(180deg, var(--slate-500), var(--slate-600));
}

.project-card:hover {
    border-color: var(--neutral-300);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.project-card__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-3);
}

.project-card__rank {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-md);
    background: var(--neutral-100);
    color: var(--neutral-600);
    font-size: var(--font-size-xs);
    font-weight: 700;
    flex-shrink: 0;
}

.project-card__title {
    flex: 1;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--neutral-800);
    line-height: 1.4;
}

.project-card__score-badge {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 700;
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
}

.project-card__score-badge.critical {
    background: var(--danger-100);
    color: var(--danger-700);
}

.project-card__score-badge.high {
    background: var(--orange-100);
    color: var(--orange-700);
}

.project-card__score-badge.medium {
    background: var(--warning-100);
    color: var(--warning-700);
}

.project-card__score-badge.low {
    background: var(--success-100);
    color: var(--success-700);
}

.project-card__score-badge.irrelevant {
    background: var(--slate-100);
    color: var(--slate-700);
}

.project-card__abstract {
    font-size: var(--font-size-sm);
    color: var(--neutral-800);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--space-3);
}

.project-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.project-card__meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.project-card__level-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    margin-bottom: var(--space-3);
    width: fit-content;
}

.project-card__level-badge.critical {
    background: var(--danger-50);
    color: var(--danger-700);
    border: 1px solid var(--danger-100);
}

.project-card__level-badge.high {
    background: var(--orange-50);
    color: var(--orange-700);
    border: 1px solid var(--orange-100);
}

.project-card__level-badge.medium {
    background: var(--warning-50);
    color: var(--warning-700);
    border: 1px solid var(--warning-100);
}

.project-card__level-badge.low {
    background: var(--success-50);
    color: var(--success-700);
    border: 1px solid var(--success-100);
}

.project-card__level-badge.irrelevant {
    background: var(--slate-50);
    color: var(--slate-700);
    border: 1px solid var(--slate-100);
}

.project-card__level-icon {
    font-size: var(--font-size-sm);
    line-height: 1;
}

.project-card__level-text {
    letter-spacing: 0.02em;
}

.project-card__year {
    font-size: var(--font-size-xs);
    color: var(--primary-600);
    font-weight: 600;
    background: var(--primary-50);
    border: 1px solid var(--primary-200);
    padding: 2px var(--space-2);
    border-radius: var(--radius-md);
}

.project-card__emrecan-badge {
    font-size: var(--font-size-xs);
    color: var(--neutral-600);
    font-weight: 600;
    background: var(--neutral-100);
    border: 1px solid var(--neutral-200);
    padding: 2px var(--space-2);
    border-radius: var(--radius-md);
    font-variant-numeric: tabular-nums;
}

.project-card__emrecan-badge.critical {
    background: var(--danger-100);
    color: var(--danger-700);
    border-color: var(--danger-200);
}

.project-card__emrecan-badge.high {
    background: var(--orange-100);
    color: var(--orange-700);
    border-color: var(--orange-200);
}

.project-card__emrecan-badge.medium {
    background: var(--warning-100);
    color: var(--warning-700);
    border-color: var(--warning-200);
}

.project-card__emrecan-badge.low {
    background: var(--success-100);
    color: var(--success-700);
    border-color: var(--success-200);
}

.project-card__emrecan-badge.irrelevant {
    background: var(--slate-100);
    color: var(--slate-700);
    border-color: var(--slate-200);
}

/* Number input spinner */
.form__input[type="number"] {
    -moz-appearance: textfield;
    appearance: textfield;
}

.form__input[type="number"]::-webkit-outer-spin-button,
.form__input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    appearance: none;
    margin: 0;
}

.project-card__similarity-bar {
    width: 120px;
    height: 6px;
    background: var(--neutral-100);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.project-card__similarity-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card__similarity-fill.critical {
    background: linear-gradient(90deg, var(--danger-500), var(--danger-600));
}

.project-card__similarity-fill.high {
    background: linear-gradient(90deg, var(--orange-500), var(--orange-600));
}

.project-card__similarity-fill.medium {
    background: linear-gradient(90deg, var(--warning-500), var(--warning-600));
}

.project-card__similarity-fill.low {
    background: linear-gradient(90deg, var(--success-500), var(--success-600));
}

.project-card__similarity-fill.irrelevant {
    background: linear-gradient(90deg, var(--slate-500), var(--slate-600));
}

/* ─── Expand/Collapse Toggle ──────────────────────────────── */
.project-card__toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--primary-600);
    background: none;
    border: none;
    padding: var(--space-1) 0;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.project-card__toggle:hover {
    color: var(--primary-700);
}

.project-card__toggle svg {
    transition: transform var(--transition-fast);
}

.project-card__toggle.expanded svg {
    transform: rotate(180deg);
}

.project-card__abstract.expanded {
    -webkit-line-clamp: unset;
    line-clamp: unset;
    display: block;
}


/* ─── Actions ──────────────────────────────────────────────── */
.results__actions {
    display: flex;
    justify-content: center;
    margin-top: var(--space-8);
}

.btn-new-analysis {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary-600);
    background: var(--primary-50);
    border: 1.5px solid var(--primary-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.btn-new-analysis:hover {
    background: var(--primary-100);
    border-color: var(--primary-300);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}


/* ═══════════════════════════════════════════════════════════════
   ERROR SECTION
   ═══════════════════════════════════════════════════════════════ */
.error-section {
    padding: var(--space-8) 0;
    animation: fadeInUp 0.4s ease-out;
}

.error-section__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-10) var(--space-6);
    text-align: center;
    background: var(--bg-surface);
    border: 1px solid var(--danger-100);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
}

.error__icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
}

.error__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--neutral-800);
    margin-bottom: var(--space-3);
}

.error__message {
    font-size: var(--font-size-sm);
    color: var(--neutral-500);
    line-height: 1.6;
    margin-bottom: var(--space-6);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.btn-retry {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--danger-600);
    background: var(--danger-50);
    border: 1.5px solid var(--danger-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.btn-retry:hover {
    background: var(--danger-100);
    border-color: var(--danger-300);
}


/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
.footer {
    background: linear-gradient(160deg, #0f1629 0%, #131c35 55%, #0d1224 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: auto;
    padding: var(--space-10) 0 0;
}

.footer__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-8);
}

/* ─── Grid ──────────────────────────────────────────────────── */
.footer__grid {
    display: grid;
    grid-template-columns: 1.8fr 1.4fr 1.6fr;
    gap: var(--space-10);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

/* ─── Brand Column ──────────────────────────────────────────── */
.footer__col--brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer__logo-wrap {
    display: flex;
    align-items: center;
}

.footer__logo-img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: var(--radius-xl);
    background: rgba(255, 255, 255, 0.07);
    padding: 10px;
    box-shadow: 0 0 24px rgba(56, 189, 248, 0.12);
}

.footer__brand-name {
    font-family: var(--font-display);
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--tusas-sky);
    letter-spacing: 2px;
    line-height: 1;
}

.footer__brand-desc {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.40);
    line-height: 1.7;
    max-width: 240px;
}

/* ─── Column Common ─────────────────────────────────────────── */
.footer__col-title {
    font-size: 0.72rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.38);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: var(--space-4);
}

.footer__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer__list-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.60);
    line-height: 1.4;
}

.footer__list-item svg {
    color: var(--tusas-sky);
    flex-shrink: 0;
    opacity: 0.8;
}

/* ─── Tech Badges ───────────────────────────────────────────── */
.footer__list-item--tech {
    gap: var(--space-2);
}

.footer__tech-badge {
    display: inline-block;
    padding: 2px 7px;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--tusas-sky);
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.22);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.footer__tech-badge--ai {
    color: #c084fc;
    background: rgba(192, 132, 252, 0.12);
    border-color: rgba(192, 132, 252, 0.22);
}

/* ─── Contact Items ─────────────────────────────────────────── */
.footer__contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.5;
}

.footer__contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    color: var(--tusas-sky);
    flex-shrink: 0;
    margin-top: 1px;
}

.footer__contact-emails {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer__contact-link {
    color: var(--tusas-sky);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.footer__contact-link:hover {
    color: #fff;
}

.footer__contact-nowrap {
    white-space: nowrap;
}

/* ─── Bottom Bar ────────────────────────────────────────────── */
.footer__bottom {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4) 0;
}

.footer__copyright {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.35);
    font-weight: 500;
    text-align: center;
}

.footer__copyright--center {
    text-align: center;
    width: 100%;
}

.footer__powered {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.25);
}

.footer__powered-item {
    color: rgba(255, 255, 255, 0.45);
    font-weight: 600;
}

.footer__powered-sep {
    color: rgba(255, 255, 255, 0.18);
}

/* ─── Footer Responsive ─────────────────────────────────────── */
@media (max-width: 900px) {
    .footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-6);
    }

    .footer__col--brand {
        grid-column: span 2;
    }

    .footer__brand-desc {
        max-width: 100%;
    }
}

@media (max-width: 600px) {
    .footer {
        padding-top: var(--space-8);
    }

    .footer__container {
        padding: 0 var(--space-4);
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-5);
    }

    .footer__col--brand {
        grid-column: span 1;
    }

    .footer__bottom {
        flex-direction: column;
        text-align: center;
        gap: var(--space-2);
    }

    .footer__powered {
        justify-content: center;
    }
}


/* ═══════════════════════════════════════════════════════════════
   PROJECT HISTORY VIEW
   ═══════════════════════════════════════════════════════════════ */
.history-section {
    padding: var(--space-6) 0 var(--space-8);
    animation: fadeInUp 0.4s ease-out;
}

.history-section__container {
    max-width: var(--container-max);
    width: 100%;
    margin: 0 auto;
    padding: 0 var(--space-8);
}


/* ─── Hero ─────────────────────────────────────────────────── */
.history-hero {
    text-align: center;
    margin-bottom: var(--space-6);
    animation: fadeInUp 0.5s ease-out 0.05s both;
}

.history-hero__title {
    display: inline-flex;
    align-items: baseline;
    gap: var(--space-3);
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 800;
    letter-spacing: 3px;
    line-height: 1;
    margin-bottom: var(--space-3);
}

.history-hero__title-main {
    color: var(--tusas-navy);
}

.history-hero__title-accent {
    background: linear-gradient(135deg, #38bdf8 0%, #6d28d9 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.history-hero__desc {
    font-size: var(--font-size-sm);
    color: var(--neutral-600);
    line-height: 1.65;
    max-width: 720px;
    margin: 0 auto;
}


/* ─── Filter Toolbar ───────────────────────────────────────── */
.history-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: var(--space-4);
    background: var(--bg-surface);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-xl);
    padding: var(--space-4) var(--space-5);
    margin-bottom: var(--space-5);
    box-shadow: var(--shadow-sm);
    animation: fadeInUp 0.4s ease-out 0.1s both;
}

.history-toolbar__field {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    flex: 0 0 auto;
}

.history-toolbar__field--search {
    flex: 1 1 280px;
    min-width: 240px;
}

.history-toolbar__field--actions {
    flex: 0 0 auto;
}

.history-toolbar__label {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--neutral-400);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
    min-height: 14px;
}

.history-toolbar__label-icon {
    display: inline-flex;
    align-items: center;
    color: var(--neutral-500);
}

.history-search {
    position: relative;
    display: flex;
    align-items: center;
    height: 40px;
}

.history-search__icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--neutral-400);
    pointer-events: none;
}

.history-search__input {
    width: 100%;
    height: 100%;
    padding: 0 var(--space-3) 0 38px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    color: var(--neutral-800);
    background: var(--bg-surface);
    border: 1.5px solid var(--neutral-200);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.history-search__input::placeholder {
    color: var(--neutral-400);
}

.history-search__input:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.history-toolbar__select {
    width: 180px;
    height: 40px;
    padding: 0 2rem 0 var(--space-3);
    border: 1.5px solid var(--neutral-200);
    border-radius: var(--radius-md);
    background: var(--bg-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E") no-repeat right var(--space-3) center;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--neutral-700);
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.history-toolbar__select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.history-toolbar__select.active {
    border-color: var(--primary-500);
    background-color: var(--primary-50);
    color: var(--primary-700);
}

.history-clear-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    height: 40px;
    padding: 0 var(--space-4);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--neutral-600);
    background: var(--bg-surface);
    border: 1.5px solid var(--neutral-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    font-family: inherit;
}

.history-clear-btn:hover:not(:disabled) {
    border-color: var(--danger-500);
    color: var(--danger-600);
    background: var(--danger-50);
}

.history-clear-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.history-toolbar__badge {
    margin-left: auto;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--primary-700);
    background: var(--primary-50);
    border: 1px solid var(--primary-200);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    white-space: nowrap;
    align-self: center;
}

.history-toolbar__badge.filtered {
    background: rgba(56, 189, 248, 0.10);
    border-color: rgba(56, 189, 248, 0.30);
    color: var(--tusas-navy);
}


/* ─── Cards Grid ───────────────────────────────────────────── */
.history-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-4);
    animation: fadeInUp 0.4s ease-out 0.15s both;
}

.history-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-surface);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.35s ease-out both;
}

.history-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--tusas-navy), var(--tusas-sky));
    opacity: 0.85;
}

.history-card:hover {
    border-color: var(--primary-300);
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.history-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.history-card__id {
    display: inline-flex;
    align-items: center;
    padding: 3px var(--space-2);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--neutral-500);
    background: var(--neutral-100);
    border-radius: var(--radius-md);
    font-variant-numeric: tabular-nums;
}

.history-card__year {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--primary-600);
    background: var(--primary-50);
    border: 1px solid var(--primary-200);
    padding: 3px var(--space-2);
    border-radius: var(--radius-md);
    letter-spacing: 0.02em;
}

.history-card__title {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--neutral-800);
    line-height: 1.4;
    margin-bottom: var(--space-3);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.history-card__keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: var(--space-4);
    min-height: 22px;
}

.history-card__tag {
    font-size: 0.68rem;
    font-weight: 600;
    padding: 2px var(--space-2);
    background: rgba(56, 189, 248, 0.10);
    color: var(--primary-700);
    border: 1px solid rgba(56, 189, 248, 0.20);
    border-radius: var(--radius-md);
}

.history-card__footer {
    display: flex;
    justify-content: flex-end;
    margin-top: auto;
    padding-top: var(--space-3);
    border-top: 1px dashed var(--neutral-200);
}

.history-card__detail-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--primary-600);
    background: transparent;
    border: none;
    padding: 4px 0;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.history-card__detail-btn:hover {
    color: var(--primary-700);
}


/* ─── Empty / Loading States ───────────────────────────────── */
.history-loading {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-12) var(--space-6);
    color: var(--neutral-500);
    font-size: var(--font-size-sm);
    font-weight: 500;
    background: var(--bg-surface);
    border: 1px dashed var(--neutral-200);
    border-radius: var(--radius-xl);
}

.history-loading__spinner {
    width: 18px;
    height: 18px;
    border: 2.5px solid var(--neutral-200);
    border-top-color: var(--primary-500);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.history-empty {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-12) var(--space-6);
    text-align: center;
    background: var(--bg-surface);
    border: 1px dashed var(--neutral-200);
    border-radius: var(--radius-xl);
    color: var(--neutral-500);
}

.history-empty__icon {
    color: var(--neutral-300);
    margin-bottom: var(--space-2);
}

.history-empty__title {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--neutral-700);
}

.history-empty__hint {
    font-size: var(--font-size-xs);
    color: var(--neutral-500);
}


/* ─── Pagination ───────────────────────────────────────────── */
.history-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-6);
    padding: var(--space-3) var(--space-4);
    background: var(--bg-surface);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.history-pagination[hidden] {
    display: none;
}

.history-pagination__info {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--neutral-500);
}

.history-pagination__btns {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.history-page-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 8px var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--neutral-700);
    background: var(--bg-surface);
    border: 1.5px solid var(--neutral-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.history-page-btn:hover:not(:disabled) {
    border-color: var(--primary-500);
    color: var(--primary-600);
    background: var(--primary-50);
}

.history-page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.history-pagination__pages {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--neutral-700);
    padding: 0 var(--space-2);
    font-variant-numeric: tabular-nums;
}


/* ═══════════════════════════════════════════════════════════════
   PROJECT DETAIL MODAL
   ═══════════════════════════════════════════════════════════════ */
.history-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    animation: fadeIn 0.25s ease-out;
}

.history-modal[hidden] {
    display: none;
}

.history-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.history-modal__dialog {
    position: relative;
    width: 100%;
    max-width: 720px;
    max-height: calc(100vh - var(--space-8));
    background: var(--bg-surface);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: fadeInUp 0.3s ease-out;
}

.history-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    background: linear-gradient(135deg, var(--tusas-navy) 0%, #0d1b3e 100%);
    color: #fff;
}

.history-modal__heading {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    min-width: 0;
}

.history-modal__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.history-modal__title {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.02em;
}

.history-modal__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.10);
    border: none;
    border-radius: var(--radius-md);
    color: #fff;
    cursor: pointer;
    transition: background var(--transition-fast);
    flex-shrink: 0;
}

.history-modal__close:hover {
    background: rgba(255, 255, 255, 0.22);
}

.history-modal__body {
    padding: var(--space-5);
    overflow-y: auto;
}

.history-modal__meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding-bottom: var(--space-3);
    margin-bottom: var(--space-3);
    border-bottom: 1px solid var(--neutral-200);
}

.history-modal__year {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--primary-700);
    background: var(--primary-50);
    border: 1px solid var(--primary-200);
    padding: 4px var(--space-3);
    border-radius: var(--radius-full);
    letter-spacing: 0.02em;
}

.history-modal__id {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--neutral-500);
}

.history-modal__id strong {
    color: var(--tusas-navy);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.history-modal__project-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--neutral-800);
    line-height: 1.4;
    margin-bottom: var(--space-5);
}

.history-modal__section {
    margin-bottom: var(--space-5);
}

.history-modal__section:last-child {
    margin-bottom: 0;
}

.history-modal__section-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary-600);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-3);
}

.history-modal__abstract {
    font-size: var(--font-size-sm);
    color: var(--neutral-700);
    line-height: 1.75;
    background: var(--neutral-50);
    border: 1px solid var(--neutral-100);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    text-align: justify;
    text-align-last: left;
    hyphens: auto;
    white-space: pre-wrap;
}

.history-modal__keywords {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.history-modal__keyword {
    display: inline-flex;
    align-items: center;
    padding: 5px var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--primary-700);
    background: var(--primary-50);
    border: 1px solid var(--primary-200);
    border-radius: var(--radius-full);
}

.history-modal__footer {
    display: flex;
    justify-content: flex-end;
    padding: var(--space-3) var(--space-5);
    background: var(--neutral-50);
    border-top: 1px solid var(--neutral-200);
}

.history-modal__btn {
    padding: var(--space-2) var(--space-5);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--neutral-700);
    background: var(--bg-surface);
    border: 1.5px solid var(--neutral-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.history-modal__btn:hover {
    border-color: var(--primary-500);
    color: var(--primary-600);
    background: var(--primary-50);
}


/* ═══════════════════════════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════════════════════════ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.project-card:nth-child(1) { animation-delay: 0.05s; }
.project-card:nth-child(2) { animation-delay: 0.10s; }
.project-card:nth-child(3) { animation-delay: 0.15s; }
.project-card:nth-child(4) { animation-delay: 0.20s; }
.project-card:nth-child(5) { animation-delay: 0.25s; }


/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */

/* Allow scroll on shorter viewports */

/* Tablet */
@media (max-width: 1024px) {
    .header__nav {
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        margin: 0 auto;
        max-width: max-content;
        background: rgba(255, 255, 255, 0.94);
        border-radius: var(--radius-full);
        padding: 4px;
        box-shadow: var(--shadow-md);
        margin-top: var(--space-3);
        z-index: 90;
    }
}

@media (max-width: 900px) {
    .header__container {
        padding: 0 var(--space-5);
    }

    .header__tagline {
        display: none;
    }

    .content-grid__container {
        padding: 0 var(--space-5);
    }

    .form-panel {
        padding: var(--space-5) var(--space-5);
    }

    .form__group {
        grid-column: span 12;
    }

    .history-section__container {
        padding: 0 var(--space-5);
    }
}

/* Mobile */
@media (max-width: 600px) {
    :root {
        --container-max: 100%;
        --header-height: 64px;
    }

    .header__container {
        padding: 0 var(--space-4);
        gap: var(--space-3);
    }

    .header__divider,
    .header__subtitle {
        display: none;
    }

    .header__title {
        font-size: 1.1rem;
    }

    .header__logo {
        height: 36px;
    }

    .header__status .status-label {
        display: none;
    }

    .nav-tab {
        padding: 6px 10px;
        font-size: var(--font-size-xs);
    }

    .nav-tab__label {
        display: none;
    }

    .nav-tab.active .nav-tab__label {
        display: inline;
    }

    .history-section__container {
        padding: 0 var(--space-4);
    }

    .history-toolbar {
        padding: var(--space-3);
    }

    .history-toolbar__select {
        width: 100%;
    }

    .history-toolbar__field--actions {
        margin-left: auto;
    }

    .history-toolbar__badge {
        margin-left: 0;
        flex-basis: 100%;
        text-align: center;
    }

    .history-cards {
        grid-template-columns: 1fr;
    }

    .history-modal__dialog {
        max-width: 100%;
        max-height: calc(100vh - var(--space-4));
    }

    .history-modal__project-title {
        font-size: var(--font-size-lg);
    }

    .hero__title {
        font-size: 1.75rem;
        letter-spacing: 1px;
    }

    .hero__desc {
        font-size: var(--font-size-xs);
    }

    .form-panel {
        padding: var(--space-5) var(--space-4);
        border-radius: var(--radius-2xl);
    }

    .form__textarea {
        min-height: 80px;
    }

    .results-section__container {
        padding: 0 var(--space-4);
    }

    .results__cards {
        grid-template-columns: 1fr;
    }

    .project-card {
        padding: var(--space-4);
    }

    .project-card__header {
        gap: var(--space-2);
        flex-wrap: wrap;
    }

    .project-card__abstract {
        -webkit-line-clamp: 2;
        line-clamp: 2;
    }

    .project-card__similarity-bar {
        width: 80px;
    }

    .query-summary {
        padding: var(--space-4);
    }
}

/* Print */
@media print {
    .header__status,
    .form__submit,
    .results__actions,
    .btn-retry,
    .bg-mesh {
        display: none;
    }

    .project-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}


/* ═══════════════════════════════════════════════════════════════
   THEME TOGGLE BUTTON
   ═══════════════════════════════════════════════════════════════ */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(15, 23, 42, 0.10);
    background: rgba(15, 23, 42, 0.05);
    color: var(--neutral-600);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast),
                border-color var(--transition-fast), transform var(--transition-fast);
    flex-shrink: 0;
}

.theme-toggle:hover {
    background: rgba(15, 23, 42, 0.10);
    color: var(--neutral-800);
    transform: rotate(12deg);
}

.theme-toggle__icon {
    display: block;
    flex-shrink: 0;
}

/* Moon visible in light, Sun visible in dark — JS toggles display */
.theme-toggle__sun { display: none; }
.theme-toggle__moon { display: block; }

[data-theme="dark"] .theme-toggle__sun { display: block; }
[data-theme="dark"] .theme-toggle__moon { display: none; }

[data-theme="dark"] .theme-toggle {
    border-color: rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.06);
    color: #94a3b8;
}

[data-theme="dark"] .theme-toggle:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #e2e8f0;
}


/* ═══════════════════════════════════════════════════════════════
   DARK MODE OVERRIDES  [data-theme="dark"]
   ═══════════════════════════════════════════════════════════════ */

/* ─── Smooth transitions on theme switch ───────────────────── */
body,
.header,
.form-panel,
.form-panel__header,
.hero__eyebrow,
.form__input,
.form__textarea,
.project-card,
.query-summary,
.query-summary__field,
.results-toolbar,
.results-toolbar__input-group,
.results-toolbar__select,
.results-toolbar__sort,
.results__header,
.error-section__container {
    transition: background 0.3s ease, background-color 0.3s ease,
                color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* ─── Body & Background ─────────────────────────────────────── */
[data-theme="dark"] body {
    background: linear-gradient(135deg, #0f1629 0%, #111827 100%) fixed;
    color: #e2e8f0;
}

[data-theme="dark"] .bg-mesh__blob--1 {
    background: radial-gradient(circle, rgba(56, 189, 248, 0.06) 0%, transparent 70%);
}
[data-theme="dark"] .bg-mesh__blob--2 {
    background: radial-gradient(circle, rgba(31, 45, 90, 0.25) 0%, transparent 70%);
}
[data-theme="dark"] .bg-mesh__blob--3 {
    background: radial-gradient(circle, rgba(109, 40, 217, 0.08) 0%, transparent 70%);
}

/* ─── Navbar ────────────────────────────────────────────────── */
[data-theme="dark"] .header {
    background: rgba(10, 14, 26, 0.88);
    border-bottom-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .header__logo-img {
    background: rgba(255, 255, 255, 0.92);
    border-radius: 6px;
    padding: 4px 8px;
}

[data-theme="dark"] .header__title-tusas {
    color: #e2e8f0;
}

[data-theme="dark"] .header__title-lift {
    color: #f87171;
}

[data-theme="dark"] .header__subtitle {
    color: rgba(255, 255, 255, 0.40);
}

[data-theme="dark"] .header__divider {
    background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.12), transparent);
}

[data-theme="dark"] .header__status {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.75);
}

/* ─── Hero ──────────────────────────────────────────────────── */
[data-theme="dark"] .hero__eyebrow {
    background: rgba(56, 189, 248, 0.08);
    border-color: rgba(56, 189, 248, 0.18);
    color: #7dd3fc;
}

[data-theme="dark"] .hero__title-main {
    color: #e2e8f0;
}

[data-theme="dark"] .hero__desc {
    color: #8b949e;
}

/* ─── Form Panel ────────────────────────────────────────────── */
[data-theme="dark"] .form-panel {
    background: #1a2234;
    border-color: rgba(255, 255, 255, 0.06);
    box-shadow: 0 22px 40px -12px rgba(0, 0, 0, 0.45);
}

[data-theme="dark"] .form-panel__header {
    border-bottom-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .form-panel__icon {
    background: rgba(56, 189, 248, 0.10);
    color: #7dd3fc;
}

[data-theme="dark"] .form-panel__title {
    color: #e2e8f0;
}

[data-theme="dark"] .form-panel__subtitle {
    color: #6e7681;
}

/* ─── Form Labels & Inputs ──────────────────────────────────── */
[data-theme="dark"] .form__label {
    color: #b1bac4;
}

[data-theme="dark"] .form__label-icon {
    background: rgba(56, 189, 248, 0.10);
    color: #7dd3fc;
}

[data-theme="dark"] .form__input,
[data-theme="dark"] .form__textarea {
    background: #111827;
    border-color: rgba(255, 255, 255, 0.10);
    color: #e2e8f0;
}

[data-theme="dark"] .form__input::placeholder,
[data-theme="dark"] .form__textarea::placeholder {
    color: #484f58;
}

[data-theme="dark"] .form__input:hover,
[data-theme="dark"] .form__textarea:hover {
    border-color: rgba(255, 255, 255, 0.18);
    background: #161b22;
}

[data-theme="dark"] .form__input:focus,
[data-theme="dark"] .form__textarea:focus {
    background: #161b22;
    border-color: #60a5fa;
    box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.12);
}

[data-theme="dark"] .form__counter {
    color: #484f58;
}

/* ─── Query Summary ─────────────────────────────────────────── */
[data-theme="dark"] .query-summary {
    background: linear-gradient(135deg, #162032 0%, #1a2644 100%);
    border-color: rgba(31, 45, 90, 0.6);
}

[data-theme="dark"] .query-summary::before {
    background: linear-gradient(90deg, #3b82f6 0%, #60a5fa 60%, transparent 100%);
    opacity: 0.5;
}

[data-theme="dark"] .query-summary__heading {
    color: #7dd3fc;
    border-bottom-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .query-summary__heading svg {
    color: #60a5fa;
}

[data-theme="dark"] .query-summary__field {
    background: rgba(255, 255, 255, 0.04);
    border-left-color: #3b82f6;
}

[data-theme="dark"] .query-summary__label {
    color: #60a5fa;
}

[data-theme="dark"] .query-summary__value {
    color: #e2e8f0;
}

[data-theme="dark"] .query-summary__value--abstract {
    color: #b1bac4;
}

/* ─── Results Toolbar ───────────────────────────────────────── */
[data-theme="dark"] .results-toolbar {
    background: #1a2234;
    border-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .results-toolbar__field + .results-toolbar__field {
    border-left-color: rgba(255, 255, 255, 0.07);
}

[data-theme="dark"] .results-toolbar__label {
    color: #6e7681;
}

[data-theme="dark"] .results-toolbar__label-icon {
    color: #60a5fa;
}

[data-theme="dark"] .results-toolbar__input-group {
    background: #111827;
    border-color: rgba(255, 255, 255, 0.10);
}

[data-theme="dark"] .results-toolbar__input {
    color: #e2e8f0;
    background: transparent;
}

[data-theme="dark"] .results-toolbar__select {
    background-color: #111827;
    border-color: rgba(255, 255, 255, 0.10);
    color: #e2e8f0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2360a5fa' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
}

[data-theme="dark"] .results-toolbar__sort {
    background: #111827;
    border-color: rgba(255, 255, 255, 0.10);
}

[data-theme="dark"] .results-toolbar__sort-btn {
    color: #6e7681;
}

[data-theme="dark"] .results-toolbar__sort-btn.active {
    background: #1a2234;
    color: #60a5fa;
}

/* ─── Results Header ────────────────────────────────────────── */
[data-theme="dark"] .results__title {
    color: #e2e8f0;
}

[data-theme="dark"] .results__title svg {
    color: #60a5fa;
}

[data-theme="dark"] .results__count {
    background: rgba(31, 45, 90, 0.5);
    border-color: rgba(31, 45, 90, 0.7);
    color: #7dd3fc;
}

/* ─── Project Cards ─────────────────────────────────────────── */
[data-theme="dark"] .project-card {
    background: #1a2234;
    border-color: rgba(255, 255, 255, 0.07);
}

[data-theme="dark"] .project-card:hover {
    border-color: rgba(255, 255, 255, 0.14);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] .project-card__title {
    color: #e2e8f0;
}

[data-theme="dark"] .project-card__abstract {
    color: #e2e8f0;
}

[data-theme="dark"] .project-card__toggle {
    color: #60a5fa;
}

[data-theme="dark"] .project-card__toggle:hover {
    color: #93c5fd;
}

[data-theme="dark"] .project-card__rank {
    background: #111827;
    color: #6e7681;
}

[data-theme="dark"] .project-card__year {
    background: rgba(31, 45, 90, 0.45);
    border-color: rgba(31, 45, 90, 0.65);
    color: #7dd3fc;
}

[data-theme="dark"] .project-card__emrecan-badge {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.10);
    color: #8b949e;
}

[data-theme="dark"] .project-card__similarity-bar {
    background: rgba(255, 255, 255, 0.08);
}

/* ─── Action Buttons ────────────────────────────────────────── */
[data-theme="dark"] .btn-new-analysis {
    background: rgba(31, 45, 90, 0.35);
    border-color: rgba(31, 45, 90, 0.55);
    color: #7dd3fc;
}

[data-theme="dark"] .btn-new-analysis:hover {
    background: rgba(31, 45, 90, 0.55);
    border-color: rgba(31, 45, 90, 0.75);
}

/* ─── Error Section ─────────────────────────────────────────── */
[data-theme="dark"] .error-section__container {
    background: #1a2234;
    border-color: rgba(227, 6, 19, 0.25);
}

[data-theme="dark"] .error__title {
    color: #e2e8f0;
}

[data-theme="dark"] .error__message {
    color: #8b949e;
}

/* ─── Header Nav Tabs ───────────────────────────────────────── */
[data-theme="dark"] .header__nav {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .nav-tab {
    color: #94a3b8;
}

[data-theme="dark"] .nav-tab:hover:not(.active) {
    color: #e2e8f0;
    background: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .nav-tab.active {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    box-shadow: 0 4px 12px -2px rgba(37, 99, 235, 0.45);
    color: #fff;
}

@media (max-width: 1024px) {
    [data-theme="dark"] .header__nav {
        background: rgba(20, 26, 45, 0.96);
    }
}

/* ─── History Hero ──────────────────────────────────────────── */
[data-theme="dark"] .history-hero__title-main {
    color: #e2e8f0;
}

[data-theme="dark"] .history-hero__desc {
    color: #8b949e;
}

/* ─── History Toolbar ───────────────────────────────────────── */
[data-theme="dark"] .history-toolbar {
    background: #1a2234;
    border-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .history-toolbar__label {
    color: #6e7681;
}

[data-theme="dark"] .history-toolbar__label-icon {
    color: #60a5fa;
}

[data-theme="dark"] .history-search__input,
[data-theme="dark"] .history-toolbar__select {
    background-color: #111827;
    border-color: rgba(255, 255, 255, 0.10);
    color: #e2e8f0;
}

[data-theme="dark"] .history-search__input::placeholder {
    color: #484f58;
}

[data-theme="dark"] .history-search__icon {
    color: #6e7681;
}

[data-theme="dark"] .history-toolbar__select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2360a5fa' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
}

[data-theme="dark"] .history-toolbar__select.active {
    border-color: #60a5fa;
    background-color: rgba(31, 45, 90, 0.40);
    color: #93c5fd;
}

[data-theme="dark"] .history-clear-btn {
    background: #111827;
    border-color: rgba(255, 255, 255, 0.10);
    color: #94a3b8;
}

[data-theme="dark"] .history-clear-btn:hover:not(:disabled) {
    background: rgba(227, 6, 19, 0.10);
    border-color: rgba(227, 6, 19, 0.45);
    color: #fca5a5;
}

[data-theme="dark"] .history-toolbar__badge {
    background: rgba(31, 45, 90, 0.50);
    border-color: rgba(31, 45, 90, 0.70);
    color: #7dd3fc;
}

[data-theme="dark"] .history-toolbar__badge.filtered {
    background: rgba(56, 189, 248, 0.12);
    border-color: rgba(56, 189, 248, 0.30);
    color: #7dd3fc;
}

/* ─── History Cards ─────────────────────────────────────────── */
[data-theme="dark"] .history-card {
    background: #1a2234;
    border-color: rgba(255, 255, 255, 0.07);
}

[data-theme="dark"] .history-card:hover {
    border-color: rgba(96, 165, 250, 0.40);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
}

[data-theme="dark"] .history-card__id {
    background: rgba(255, 255, 255, 0.06);
    color: #94a3b8;
}

[data-theme="dark"] .history-card__year {
    background: rgba(31, 45, 90, 0.45);
    border-color: rgba(31, 45, 90, 0.65);
    color: #7dd3fc;
}

[data-theme="dark"] .history-card__title {
    color: #e2e8f0;
}

[data-theme="dark"] .history-card__tag {
    background: rgba(56, 189, 248, 0.10);
    border-color: rgba(56, 189, 248, 0.20);
    color: #93c5fd;
}

[data-theme="dark"] .history-card__footer {
    border-top-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .history-card__detail-btn {
    color: #60a5fa;
}

[data-theme="dark"] .history-card__detail-btn:hover {
    color: #93c5fd;
}

/* ─── Loading / Empty / Pagination ──────────────────────────── */
[data-theme="dark"] .history-loading,
[data-theme="dark"] .history-empty {
    background: #1a2234;
    border-color: rgba(255, 255, 255, 0.08);
    color: #8b949e;
}

[data-theme="dark"] .history-loading__spinner {
    border-color: rgba(255, 255, 255, 0.12);
    border-top-color: #60a5fa;
}

[data-theme="dark"] .history-empty__title {
    color: #e2e8f0;
}

[data-theme="dark"] .history-empty__icon {
    color: #4b5563;
}

[data-theme="dark"] .history-pagination {
    background: #1a2234;
    border-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .history-pagination__info,
[data-theme="dark"] .history-pagination__pages {
    color: #b1bac4;
}

[data-theme="dark"] .history-page-btn {
    background: #111827;
    border-color: rgba(255, 255, 255, 0.10);
    color: #b1bac4;
}

[data-theme="dark"] .history-page-btn:hover:not(:disabled) {
    background: rgba(31, 45, 90, 0.45);
    border-color: rgba(96, 165, 250, 0.50);
    color: #93c5fd;
}

/* ─── History Modal ─────────────────────────────────────────── */
[data-theme="dark"] .history-modal__backdrop {
    background: rgba(0, 0, 0, 0.65);
}

[data-theme="dark"] .history-modal__dialog {
    background: #1a2234;
    box-shadow: 0 28px 60px rgba(0, 0, 0, 0.6);
}

[data-theme="dark"] .history-modal__header {
    background: linear-gradient(135deg, #0f1629 0%, #1e293b 100%);
}

[data-theme="dark"] .history-modal__year {
    background: rgba(31, 45, 90, 0.50);
    border-color: rgba(31, 45, 90, 0.70);
    color: #7dd3fc;
}

[data-theme="dark"] .history-modal__id {
    color: #8b949e;
}

[data-theme="dark"] .history-modal__id strong {
    color: #93c5fd;
}

[data-theme="dark"] .history-modal__meta {
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .history-modal__project-title {
    color: #e2e8f0;
}

[data-theme="dark"] .history-modal__section-title {
    color: #60a5fa;
}

[data-theme="dark"] .history-modal__abstract {
    background: #111827;
    border-color: rgba(255, 255, 255, 0.06);
    color: #cbd5e1;
}

[data-theme="dark"] .history-modal__keyword {
    background: rgba(31, 45, 90, 0.45);
    border-color: rgba(31, 45, 90, 0.65);
    color: #93c5fd;
}

[data-theme="dark"] .history-modal__footer {
    background: #111827;
    border-top-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .history-modal__btn {
    background: #1a2234;
    border-color: rgba(255, 255, 255, 0.10);
    color: #b1bac4;
}

[data-theme="dark"] .history-modal__btn:hover {
    background: rgba(31, 45, 90, 0.45);
    border-color: rgba(96, 165, 250, 0.50);
    color: #93c5fd;
}