/* ═══════════════════════════════════════════════════════════════
   Specula — Deepfake Forensics Toolkit
   Liquid Glass Design System
   ═══════════════════════════════════════════════════════════════ */

/* ── CSS Variables ───────────────────────────────────────────── */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f4f7f9;
    --bg-card: #ffffff;
    --bg-card-hover: #fcfdfe;
    --border: #e1e8ed;
    --border-accent: #2a2a2a;
    --text-primary: #121213;
    --text-secondary: #45474a;
    --text-muted: #878c92;
    --aqua: #7f7f7f;
    --teal: #444444;
    --sky: #999999;
    --blue: #333333;
    --red: #d93025;
    --orange: #e8710a;
    --amber: #f9ab00;
    --green: #188038;
    --indigo: #444444;
    --logo-blue: #005073;
    --glass-bg: rgba(255, 255, 255, 0.95);
    --glass-border: #e1e8ed;
    --glass-blur: blur(0px);
    --glass-glow: none;
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.15), 0 2px 8px rgba(0, 0, 0, 0.08);
    --glass-inner-shadow: none;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
    --radius-lg: 0px;
    --radius-sm: 0px;
    --transition: all 0.2s ease-out;
    
    /* Semantic Clinical Tokens */
    --nav-bg: #ffffff;
    --nav-border: #e1e8ed;
    --input-bg: #ffffff;
    --input-border: #d1d9e0;
    --tab-bg: #f4f7f9;
    --tab-active-bg: #ffffff;
    --panel-bg: #ffffff;
}

[data-theme="dark"] {
    --bg-primary: #050505;
    --bg-secondary: #0a0a0a;
    --bg-card: #0f0f0f;
    --bg-card-hover: #161616;
    --border: #1f1f1f;
    --border-accent: #444444;
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --text-muted: #555555;
    --glass-bg: #0f0f0f;
    --glass-border: #1f1f1f;
    --glass-blur: blur(0px);
    --glass-glow: none;
    --glass-shadow: 0 4px 24px rgba(0, 0, 0, 0.8);
    --glass-inner-shadow: none;

    /* Semantic Overrides */
    --nav-bg: #080808;
    --nav-border: #1f1f1f;
    --input-bg: #030303;
    --input-border: #2a2a2a;
    --tab-bg: #0a0a0a;
    --tab-active-bg: #161616;
    --panel-bg: #0f0f0f;
    --logo-blue: #00bceb; /* Brighter blue for dark mode visibility */
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    background-image: 
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 40px 40px;
    background-attachment: fixed;
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
    transition: background var(--transition), color var(--transition);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: 
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 8px 8px;
    opacity: 0.1;
    pointer-events: none;
    z-index: -1;
}

[data-theme="dark"] body {
    background-color: var(--bg-primary);
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
}

img {
    max-width: 100%;
    border-radius: var(--radius-sm);
}

/* ── Ambient Background ──────────────────────────────────────── */
.ambient-bg {
    position: fixed;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

#particle-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0.15; /* Subdued */
}

[data-theme="dark"] #particle-canvas {
    display: none; /* Forensic look: no distractions */
}

.orb {
    display: none;
}

.orb-1 {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, #32ADE6 0%, transparent 70%);
    top: -150px;
    left: -100px;
}

.orb-2 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #30D1BE 0%, transparent 70%);
    bottom: -150px;
    right: -100px;
}

.orb-3 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #5AC8FA 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -16s;
}

@keyframes float {
    0%, 100% {
        transform: translate3d(0, 0, 0) scale(1);
    }
    33% {
        transform: translate3d(50px, -50px, 0) scale(1.1);
    }
    66% {
        transform: translate3d(-30px, 30px, 0) scale(0.95);
    }
}

/* ── Liquid Glass Effect ────────────────────────────────────── */
/* Core glass utility with volumetric refraction and depth */
.top-nav,
.logo-badge,
.upload-tabs,
.upload-zone,
.url-input-zone,
.file-preview,
.batch-preview,
.scanning-container,
.verdict-banner,
.panel,
.nav-btn,
.batch-card,
.history-card,
.btn-new-analysis,
.btn-action {
    position: relative;
    overflow: hidden;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: none;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--glass-shadow), var(--glass-inner-shadow);
}

/* Remove volumetric glows for forensic mode */
.top-nav::after,
.logo-badge::after,
.upload-zone::after,
.url-input-zone::after,
.scanning-container::after,
.verdict-banner::after,
.panel::after,
.glass-tilt::after {
    display: none;
}

/* ── Interactive 3D Glass Tilt ─────────────────────────────────── */
.glass-tilt {
    transform-style: preserve-3d;
    perspective: 1000px;
    will-change: transform;
    transition: transform 0.1s ease-out; /* Snap back is faster than tilt */
}

/* Remove specular glint for forensic mode */
.glass-tilt::before {
    display: none;
}

/* ── Orchestrated reveal animations ──────────────────────────── */
@keyframes glassReveal {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.98);
        backdrop-filter: blur(0px);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
        backdrop-filter: var(--glass-blur);
    }
}

.reveal-item {
    opacity: 0;
}

.reveal-active {
    animation: glassReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Delay Utlities */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* ── Skeleton Loading Shimmer ─────────────────────────────── */
.skeleton {
    background: rgba(255, 255, 255, 0.05);
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.05) 25%,
        rgba(255, 255, 255, 0.12) 50%,
        rgba(255, 255, 255, 0.05) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite linear;
    border-radius: 4px;
}

@keyframes shimmer {
    from { background-position: 200% 0; }
    to { background-position: -200% 0; }
}

.skeleton-text { height: 12px; margin-bottom: 8px; width: 100%; }
.skeleton-text.short { width: 60%; }
.skeleton-img { width: 100%; height: 160px; border-radius: var(--radius-sm); }
.skeleton-badge { width: 60px; height: 24px; border-radius: 12px; }

/* Hide content when skeleton is active */
.loading-skeleton .panel-content-actual {
    display: none;
}
.loading-skeleton .panel-content-skeleton {
    display: block;
}
.panel-content-skeleton {
    display: none;
}

/* Content layer to ensure text readability */
.top-nav > *,
.logo-badge > *,
.upload-zone > *,
.url-input-zone > *,
.scanning-container > *,
.verdict-banner > *,
.panel > * {
    position: relative;
    z-index: 2;
}

.panels-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* Force 2-column layout on desktop */
    gap: 32px;
    margin-top: 32px;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 1024px) {
    .panels-grid {
        grid-template-columns: 1fr;
    }
}




/* Modal Zoom */
.zoom-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.zoom-modal.visible {
    opacity: 1;
    pointer-events: auto;
}

.zoom-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(5, 6, 8, 0.95);
}

.zoom-content {
    position: relative;
    z-index: 10;
    max-width: 100%;
    max-height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.03);
    padding: 10px;
    border-radius: 4px;
}

.zoom-image-container {
    max-width: 90vw;
    max-height: 80vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.zoom-image-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.5);
    border-radius: 2px;
}

.zoom-image-container canvas {
    max-width: 100% !important;
    max-height: 100% !important;
    width: auto !important;
    height: auto !important;
    cursor: move;
}

.zoom-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s;
    padding: 10px;
}

.zoom-close:hover {
    opacity: 1;
}

.zoom-caption {
    margin-top: 16px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.animate-zoom {
    transform: scale(0.95) translateY(10px);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.zoom-modal.visible .animate-zoom {
    transform: scale(1) translateY(0);
}

/* Disable interactive liquid ripple for forensic mode */
.liquid-ripple {
    display: none;
}

/* ── Top Navigation ──────────────────────────────────────────── */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    background: var(--nav-bg);
    border-bottom: 2px solid var(--nav-border);
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-badge-sm {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 0.95rem;
}

.logo-badge-sm svg {
    opacity: 0.7;
    color: var(--indigo);
}

.nav-right {
    display: flex;
    gap: 8px;
}

.nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-family: var(--font-sans);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.nav-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-accent);
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(0,0,0,0.10), var(--glass-inner-shadow);
}

.history-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    border-radius: 2px;
    font-size: 0.65rem;
    background: var(--blue);
    color: #fff;
    font-weight: 700;
    padding: 0 5px;
}

/* ── Hero Section ────────────────────────────────────────────── */
.hero {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 80px 24px 40px;
    text-align: center;
}

.hero-content {
    max-width: 700px;
    width: 100%;
}

.logo-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 0px;
    padding: 8px 20px 8px 14px;
    margin-bottom: 24px;
    box-shadow: var(--glass-shadow), var(--glass-inner-shadow);
}

.logo-icon {
    color: var(--logo-blue);
    display: flex;
}

.logo-text {
    color: var(--text-primary);
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    letter-spacing: -0.01em;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.gradient-text {
    color: var(--text-primary);
}

.hero-subtitle {
    color: var(--text-secondary);
    font-size: clamp(0.9rem, 2vw, 1.05rem);
    max-width: 540px;
    margin: 0 auto 32px;
    line-height: 1.6;
}

.hero-subtitle em {
    color: var(--indigo);
    font-style: normal;
    font-weight: 600;
}

/* ── Upload Zone ─────────────────────────────────────────────── */
.upload-zone {
    border: 1px dashed var(--border-accent);
    border-radius: var(--radius-sm);
    padding: 4px;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--bg-secondary);
    position: relative;
}

.upload-zone::before, .upload-zone::after {
    content: '';
    position: absolute;
    width: 15px;
    height: 15px;
    border: 2px solid var(--border-accent);
    opacity: 0.5;
}

.upload-zone::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.upload-zone::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--indigo);
    background: rgba(255, 255, 255, 0.35);
    transform: translateY(-2px);
    box-shadow: 0 12px 48px rgba(0,0,0,0.12);
}

.upload-zone-inner {
    padding: 48px 24px;
    text-align: center;
}

.upload-icon {
    color: var(--indigo);
    margin-bottom: 16px;
    opacity: 0.7;
}

.upload-text {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.upload-subtext {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ── Upload Mode Tabs ────────────────────────────────────────── */
.upload-tabs {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-bottom: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 4px;
    display: inline-flex;
}

.upload-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    border: none;
    border-radius: 2px;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all 0.25s;
}

.upload-tab:hover {
    color: var(--text-secondary);
}

.upload-tab.active {
    background: var(--tab-active-bg);
    color: var(--indigo);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

/* ── URL Input Zone ──────────────────────────────────────────── */
.url-input-zone {
    border: 1px solid var(--border);
    border-radius: 2px;
    background: var(--bg-card);
    padding: 4px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.03);
}

.url-input-inner {
    padding: 32px 24px;
    text-align: center;
}

.url-input-icon {
    color: var(--indigo);
    margin-bottom: 12px;
    opacity: 0.7;
}

.url-input-row {
    display: flex;
    gap: 8px;
    margin-top: 16px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.url-text-input {
    flex: 1;
    padding: 12px 16px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 2px;
    color: var(--text-primary);
    font-size: 0.85rem;
    font-family: var(--font-mono);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-shadow: var(--glass-inner-shadow);
}

.url-text-input::placeholder {
    color: var(--text-muted);
}

.url-text-input:focus {
    border-color: var(--indigo);
    box-shadow: 0 0 0 3px rgba(50, 173, 230, 0.15), var(--glass-inner-shadow);
}

.url-error {
    color: var(--red);
    font-size: 0.78rem;
    margin-top: 10px;
}

/* ── File Preview ────────────────────────────────────────────── */
.file-preview {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
}

.preview-image {
    max-height: 200px;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.10);
}

.file-info {
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
    gap: 12px;
}

.file-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.file-size {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

/* ── Batch Preview ───────────────────────────────────────────── */
.batch-preview {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
}

.batch-thumbnails {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 16px;
}

.batch-thumb {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    border: 2px solid var(--border);
    transition: all 0.2s;
}

.batch-thumb:hover {
    border-color: var(--cyan);
    transform: scale(1.05);
}

.batch-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.batch-count {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn-analyze {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--blue);
    color: #ffffff;
    border: 1px solid var(--blue);
    padding: 12px 32px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-sans);
}

.btn-analyze:hover {
    transform: translateY(-1px);
    background: #222222; /* Darker grey for hover */
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-reset {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-sans);
}

.btn-reset:hover {
    background: rgba(255, 255, 255, 0.35);
    color: var(--text-primary);
}

.btn-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--indigo);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-sans);
    box-shadow: var(--glass-shadow);
}

.btn-action:hover {
    background: rgba(255, 255, 255, 0.55);
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(0,0,0,0.08), var(--glass-inner-shadow);
}

.btn-new-analysis {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-family: var(--font-sans);
    box-shadow: var(--glass-shadow), var(--glass-inner-shadow);
}

.btn-new-analysis:hover {
    background: rgba(255, 255, 255, 0.55);
    transform: translateY(-1px);
}

.results-action-bar {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    padding: 0 20px 10px;
}

/* ── Scanning Animation ──────────────────────────────────────── */
.scanning-section {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 40px 24px;
}

.scanning-container {
    max-width: 480px;
    width: 100%;
    text-align: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-top: 4px solid var(--border-accent);
    border-radius: var(--radius-sm);
    padding: 40px;
    box-shadow: var(--glass-shadow);
}

.scan-visual {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.scan-image {
    width: 100%;
    display: block;
    filter: grayscale(0.5);
}

.scan-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--border-accent);
    box-shadow: 0 0 15px var(--border-accent);
    animation: scanLine 2s ease-in-out infinite;
}

@keyframes scanLine {
    0% {
        top: 0;
    }

    100% {
        top: 100%;
    }
}

.scan-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 16px;
}

.scan-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border);
    border-top-color: var(--cyan);
    border-radius: 2px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}

.scan-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-family: var(--font-mono);
}

.scan-progress {
    height: 4px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 2px;
    overflow: hidden;
}

.scan-progress-bar {
    height: 100%;
    width: 0;
    background: var(--blue);
    border-radius: 2px;
    transition: width 0.3s;
}

/* ── Batch Results ───────────────────────────────────────────── */
.batch-results-section {
    position: relative;
    z-index: 1;
    padding: 100px 24px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    text-align: center;
}

.batch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.batch-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s;
}

.batch-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-accent);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.batch-card-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.batch-card-body {
    padding: 16px;
}

.batch-card-name {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.batch-card-verdict {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
}

.batch-card-score {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    float: right;
    margin-top: 4px;
}

/* ── Results Section ─────────────────────────────────────────── */
.results-section {
    position: relative;
    z-index: 1;
    padding: 80px 20px 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.new-analysis {
    text-align: center;
    padding: 30px 0;
}

/* ── Verdict Banner ──────────────────────────────────────────── */
.verdict-banner {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-top: 4px solid var(--border-accent);
    border-radius: var(--radius-sm);
    padding: 32px;
    margin-bottom: 32px;
    transition: all 0.4s;
    box-shadow: var(--glass-shadow);
}

.verdict-content {
    display: flex;
    align-items: center;
    gap: 28px;
}

.verdict-gauge-container {
    position: relative;
    flex-shrink: 0;
    width: 200px;
    height: 200px;
}

.verdict-score-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.verdict-score {
    font-size: 2.4rem;
    font-weight: 900;
    font-family: var(--font-mono);
}

.verdict-score-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.verdict-label {
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 2px;
    display: inline-block;
    padding-bottom: 4px;
}

.verdict-summary {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-top: 8px;
}

.verdict-meta {
    display: flex;
    gap: 16px;
    margin-top: 12px;
}

.verdict-meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-family: var(--font-mono);
}

.verdict-info {
    flex: 1;
}

/* ── Panels ──────────────────────────────────────────────────── */
.panels-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.panel {
    background: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all 0.2s;
    box-shadow: var(--glass-shadow);
    position: relative;
}


.panel:hover {
    border-color: rgba(255, 255, 255, 0.7);
    box-shadow: 0 12px 32px rgba(0,0,0,0.08), var(--glass-inner-shadow);
}

.panel-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.panel-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.cnn-icon {
    background: rgba(239, 68, 68, 0.12);
    color: var(--red);
}

.ela-icon {
    background: rgba(249, 115, 22, 0.12);
    color: var(--orange);
}

.freq-icon {
    background: rgba(129, 140, 248, 0.12);
    color: var(--indigo);
}

.noise-icon {
    background: rgba(6, 214, 160, 0.12);
    color: var(--cyan);
}

.meta-icon {
    background: rgba(245, 158, 11, 0.12);
    color: var(--amber);
}

.panel-title {
    font-size: 0.9rem;
    font-weight: 700;
}

.panel-subtitle {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.score-badge {
    margin-left: auto;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
}

.panel-body {
    padding: 20px;
}

.panel-description {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.5;
    margin-bottom: 16px;
}

.panel-visual {
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: 8px;
}

.panel-visual img {
    width: 100%;
    display: block;
}

.visual-caption {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-align: center;
    font-style: italic;
}

.chart-container {
    height: 180px;
    margin: 16px 0 8px;
}

/* ── CNN ─────────────────────────────────────────────────────── */
.cnn-prediction {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.pred-label {
    padding: 4px 14px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.85rem;
}

.pred-confidence {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ── Metadata ────────────────────────────────────────────────── */
.meta-flags {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.meta-flag {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    line-height: 1.4;
}

.flag-danger {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--red);
}

.flag-warning {
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.2);
    color: var(--amber);
}

.flag-info {
    background: rgba(129, 140, 248, 0.08);
    border: 1px solid rgba(129, 140, 248, 0.15);
    color: var(--indigo);
}

.meta-flag-icon {
    font-size: 1rem;
    flex-shrink: 0;
}

.meta-details table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.78rem;
}

.meta-details th,
.meta-details td {
    padding: 6px 10px;
    border-bottom: 1px solid var(--border);
    text-align: left;
}

.meta-details th {
    color: var(--text-muted);
    font-weight: 500;
    width: 35%;
    font-family: var(--font-mono);
}

.meta-details td {
    color: var(--text-secondary);
    word-break: break-all;
}

/* ── Panel Specific Overrides ────────────────────────────────── */
#panel-metadata {
    grid-column: 1 / -1; /* Horizontal span */
}

#panel-metadata .panel-info-group {
    height: auto;
    min-height: 0;
    margin-bottom: 24px;
}

#panel-metadata .panel-content-actual {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    align-items: start;
}

#panel-metadata .meta-flags {
    margin-bottom: 0;
}

@media (max-width: 1000px) {
    #panel-metadata .panel-content-actual {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* ── History Section ─────────────────────────────────────────── */
.history-section {
    position: relative;
    z-index: 1;
    padding: 80px 24px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.history-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.history-actions {
    display: flex;
    gap: 8px;
}

.history-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
}

.history-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.history-card:hover {
    transform: translateY(-3px);
    border-color: var(--border-accent);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.history-card-img {
    width: 100%;
    height: 140px;
    object-fit: cover;
}

.history-card-body {
    padding: 12px 14px;
}

.history-card-name {
    font-size: 0.78rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 6px;
}

.history-card-verdict {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 700;
}

.history-card-date {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 6px;
    font-family: var(--font-mono);
}

.history-card.selected {
    border-color: var(--cyan);
    box-shadow: 0 0 20px rgba(6, 214, 160, 0.2);
}

.history-empty {
    color: var(--text-muted);
    text-align: center;
    padding: 40px;
    font-size: 0.9rem;
}

/* ── Comparison Section ──────────────────────────────────────── */
.compare-section {
    position: relative;
    z-index: 1;
    padding: 80px 24px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.compare-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.compare-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 24px;
    text-align: center;
}

.compare-slots {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 16px;
    align-items: start;
}

.compare-vs {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-muted);
    align-self: center;
    padding-top: 40px;
}

.compare-slot {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.compare-slot-label {
    padding: 12px 16px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--cyan);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--border);
}

.compare-picker {
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: all 0.2s;
}

.compare-picker:hover {
    background: var(--bg-card-hover);
    color: var(--text-secondary);
}

.compare-result {
    padding: 16px;
}

.compare-result img {
    width: 100%;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
}

.compare-result-verdict {
    font-size: 0.9rem;
    font-weight: 800;
    margin-bottom: 6px;
}

.compare-result-scores {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    font-size: 0.75rem;
}

.compare-result-score {
    display: flex;
    justify-content: space-between;
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 4px;
}

.compare-result-score span:last-child {
    font-family: var(--font-mono);
    font-weight: 600;
}

.compare-chart-container {
    margin-top: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.compare-chart-title {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 16px;
    text-align: center;
}

#compare-chart {
    max-height: 280px;
}

/* ── Footer ──────────────────────────────────────────────────── */
.footer {
    text-align: center;
    padding: 30px;
    color: var(--text-muted);
    font-size: 0.75rem;
    border-top: 1px solid var(--border);
}

/* ── Utilities ───────────────────────────────────────────────── */
.hidden {
    display: none !important;
}

/* ── Responsive ──────────────────────────────────────────────── */

/* Large tablets / small desktops */
@media (max-width: 1200px) {
    .results-section {
        padding: 80px 16px 40px;
        max-width: 100%;
    }

    .batch-results-section {
        padding: 80px 16px 40px;
    }

    .history-section {
        padding: 80px 16px 40px;
    }

    .compare-section {
        padding: 80px 16px 40px;
    }
}

/* Tablets */
@media (max-width: 992px) {
    .panels-grid {
        grid-template-columns: 1fr;
    }

    .verdict-content {
        flex-direction: column;
        text-align: center;
    }

    .verdict-info {
        text-align: center;
    }

    .verdict-meta {
        justify-content: center;
    }

    .verdict-banner {
        padding: 20px;
    }

    .batch-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .history-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }

    .compare-slots {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .compare-vs {
        padding: 6px 0;
        text-align: center;
        font-size: 1.2rem;
    }

    .results-action-bar {
        justify-content: center;
        flex-wrap: wrap;
    }
}

/* Small tablets / large phones */
@media (max-width: 768px) {
    .top-nav {
        padding: 10px 12px;
    }

    .nav-btn {
        padding: 6px 10px;
        font-size: 0.75rem;
    }

    .nav-btn svg {
        width: 14px;
        height: 14px;
    }

    .hero {
        padding: 70px 16px 32px;
        min-height: auto;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-title {
        font-size: 1.8rem;
        margin-bottom: 12px;
    }

    .hero-subtitle {
        font-size: 0.85rem;
        margin-bottom: 24px;
    }

    .logo-badge {
        padding: 6px 14px 6px 10px;
        margin-bottom: 16px;
    }

    .logo-icon svg {
        width: 24px;
        height: 24px;
    }

    .logo-text {
        font-size: 0.8rem;
    }

    .upload-zone-inner {
        padding: 32px 16px;
    }

    .upload-icon svg {
        width: 36px;
        height: 36px;
    }

    .upload-text {
        font-size: 0.9rem;
    }

    .upload-subtext {
        font-size: 0.75rem;
    }

    .file-preview {
        padding: 14px;
    }

    .preview-image {
        max-height: 160px;
    }

    .file-info {
        flex-direction: column;
        gap: 4px;
    }

    .btn-analyze {
        padding: 10px 22px;
        font-size: 0.85rem;
    }

    .btn-reset {
        padding: 6px 14px;
        font-size: 0.75rem;
    }

    .batch-thumb {
        width: 60px;
        height: 60px;
    }

    .batch-actions {
        flex-wrap: wrap;
        gap: 8px;
    }

    .batch-count {
        font-size: 0.8rem;
    }

    .scanning-section {
        padding: 60px 16px;
        min-height: auto;
    }

    .scanning-container {
        max-width: 100%;
    }

    .batch-results-section {
        padding: 70px 12px 30px;
    }

    .batch-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .batch-card-img {
        height: 140px;
    }

    .batch-card-body {
        padding: 10px;
    }

    .batch-card-name {
        font-size: 0.75rem;
    }

    .batch-card-verdict {
        font-size: 0.65rem;
        padding: 3px 8px;
    }

    .batch-card-score {
        font-size: 0.7rem;
    }

    .results-section {
        padding: 70px 12px 30px;
    }

    .verdict-banner {
        padding: 16px;
    }

    .verdict-gauge-container {
        width: 160px;
        height: 160px;
    }

    .verdict-score {
        font-size: 1.8rem;
    }

    .verdict-label {
        font-size: 1rem;
        letter-spacing: 1px;
    }

    .verdict-summary {
        font-size: 0.8rem;
    }

    .verdict-meta {
        flex-wrap: wrap;
        gap: 10px;
    }

    .panel-header {
        padding: 12px 14px;
        gap: 10px;
    }

    .panel-icon {
        width: 30px;
        height: 30px;
    }

    .panel-icon svg {
        width: 16px;
        height: 16px;
    }

    .panel-title {
        font-size: 0.8rem;
    }

    .panel-subtitle {
        font-size: 0.65rem;
    }

    .panel-body {
        padding: 14px;
    }

    .panel-description {
        font-size: 0.8rem;
    }

    .score-badge {
        font-size: 0.7rem;
        padding: 3px 8px;
    }

    .section-title {
        font-size: 1.2rem;
    }

    .history-section {
        padding: 70px 12px 30px;
    }

    .history-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 10px;
    }

    .history-card-img {
        height: 110px;
    }

    .history-card-body {
        padding: 10px;
    }

    .history-card-name {
        font-size: 0.7rem;
    }

    .history-header {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }

    .compare-section {
        padding: 70px 12px 30px;
    }

    .compare-subtitle {
        font-size: 0.8rem;
    }

    .btn-new-analysis {
        padding: 10px 20px;
        font-size: 0.85rem;
    }

    .btn-action {
        padding: 8px 16px;
        font-size: 0.8rem;
    }

    .footer {
        padding: 20px 12px;
        font-size: 0.7rem;
    }
}

/* Phones */
@media (max-width: 480px) {
    .top-nav {
        padding: 8px 10px;
    }

    .logo-badge-sm {
        font-size: 0.8rem;
        gap: 5px;
    }

    .logo-badge-sm svg {
        width: 16px;
        height: 16px;
    }

    .nav-btn span:not(.history-badge) {
        display: none;
    }

    .nav-btn {
        padding: 6px 8px;
        gap: 0;
    }

    .nav-right {
        gap: 4px;
    }

    .hero {
        padding: 60px 12px 24px;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 0.8rem;
        max-width: 100%;
        margin-bottom: 20px;
    }

    .logo-badge {
        padding: 5px 12px 5px 8px;
    }

    .logo-text {
        font-size: 0.7rem;
        letter-spacing: 1px;
    }

    .upload-zone-inner {
        padding: 24px 12px;
    }

    .upload-icon svg {
        width: 28px;
        height: 28px;
    }

    .upload-text {
        font-size: 0.85rem;
    }

    .preview-image {
        max-height: 120px;
    }

    .btn-analyze {
        padding: 10px 18px;
        font-size: 0.8rem;
        width: 100%;
        justify-content: center;
    }

    .btn-reset {
        width: 100%;
        text-align: center;
        margin-top: 6px;
    }

    .batch-thumb {
        width: 50px;
        height: 50px;
    }

    .batch-actions {
        flex-direction: column;
    }

    .batch-analyze-btn {
        width: 100%;
    }

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

    .batch-card-img {
        height: 160px;
    }

    .verdict-gauge-container {
        width: 140px;
        height: 140px;
    }

    .verdict-score {
        font-size: 1.5rem;
    }

    .verdict-label {
        font-size: 0.85rem;
    }

    .verdict-summary {
        font-size: 0.75rem;
    }

    .verdict-meta-item {
        font-size: 0.65rem;
    }

    .panel-header {
        flex-wrap: wrap;
    }

    .panel-body {
        padding: 12px;
    }

    .chart-container {
        height: 140px;
    }

    .cnn-prediction {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }

    .pred-label {
        font-size: 0.75rem;
    }

    .pred-confidence {
        font-size: 0.7rem;
    }

    .meta-flag {
        font-size: 0.75rem;
        padding: 6px 10px;
    }

    .meta-details th,
    .meta-details td {
        padding: 4px 6px;
        font-size: 0.7rem;
    }

    .history-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .history-card-img {
        height: 100px;
    }

    .history-card-verdict {
        font-size: 0.6rem;
        padding: 2px 8px;
    }

    .history-card-date {
        font-size: 0.6rem;
    }

    .compare-result-scores {
        grid-template-columns: 1fr;
    }

    .compare-slot-label {
        font-size: 0.7rem;
        padding: 8px 12px;
    }

    .compare-picker {
        padding: 24px 12px;
        font-size: 0.8rem;
    }

    .results-action-bar {
        padding: 0 0 8px;
        flex-direction: column;
    }

    .btn-action {
        width: 100%;
        justify-content: center;
    }

    .btn-new-analysis {
        width: 100%;
        justify-content: center;
        padding: 12px 16px;
        font-size: 0.85rem;
    }

    .scan-text {
        font-size: 0.75rem;
    }

    .scan-status {
        gap: 6px;
    }

    .footer {
        padding: 16px 10px;
    }
}

/* Very small phones */
@media (max-width: 360px) {
    .hero-title {
        font-size: 1.3rem;
    }

    .hero-subtitle {
        font-size: 0.75rem;
    }

    .batch-thumb {
        width: 44px;
        height: 44px;
    }

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

    .verdict-gauge-container {
        width: 120px;
        height: 120px;
    }

    .verdict-score {
        font-size: 1.3rem;
    }
}

/* Touch-friendly spacing for all mobile */
@media (hover: none) and (pointer: coarse) {

    .btn-analyze,
    .btn-reset,
    .btn-action,
    .btn-new-analysis,
    .nav-btn {
        min-height: 44px;
    }

    .batch-card,
    .history-card {
        -webkit-tap-highlight-color: transparent;
    }

    .panel:hover {
        transform: none;
    }

    .batch-card:hover {
        transform: none;
    }

    .history-card:hover {
        transform: none;
    }
}

/* ── Liquid Theme Transition (Perfected) ────────────────────────── */
.theme-droplet {
    position: fixed;
    width: 20px;
    height: 20px;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.9), rgba(100, 200, 255, 0.4));
    border-radius: var(--radius-sm);
    z-index: 10001;
    pointer-events: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2), inset 0 0 12px rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(8px);
    transition: transform 1.2s cubic-bezier(0.5, 0, 0.2, 1);
    filter: brightness(1.1) saturate(1.2);
    will-change: transform;
    transform: translateZ(0);
}

@keyframes droplet-impact {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(5); opacity: 0; border-width: 0; }
}

.droplet-impact-effect {
    position: fixed;
    width: 40px;
    height: 40px;
    border: 2px solid var(--indigo);
    border-radius: var(--radius-sm);
    z-index: 10001;
    pointer-events: none;
    animation: droplet-impact 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* View Transition API Polish */
::view-transition-group(root) {
    animation-duration: 1.5s;
    animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

::view-transition-new(root) {
    animation: reveal-diagonal 1.5s cubic-bezier(0.4, 0, 0.2, 1);
    mix-blend-mode: normal;
    will-change: clip-path;
}

::view-transition-old(root) {
    animation: none;
    mix-blend-mode: normal;
}

@keyframes reveal-diagonal {
    from {
        clip-path: circle(0% at 100% 100%);
    }
    to {
        clip-path: circle(150% at 100% 100%);
    }
}

/* ── Specula Logo Animation ────────────────────────────── */
.specula-logo {
    overflow: visible;
    color: var(--logo-blue);
}

.specula-logo .specula-inner {
    transform-origin: 50% 50%;
    stroke: var(--logo-blue);
    animation: specula-spin 12s linear infinite;
}

.specula-logo .specula-core {
    transform-origin: 50% 50%;
    fill: var(--logo-blue);
    animation: specula-pulse 2.5s ease-in-out infinite alternate;
}

@keyframes specula-spin {
    100% { transform: rotate(360deg); }
}

@keyframes specula-pulse {
    0% { transform: scale(0.85); opacity: 0.7; filter: drop-shadow(0 0 2px var(--logo-blue)); }
    100% { transform: scale(1.4); opacity: 1; filter: drop-shadow(0 0 6px var(--logo-blue)); }
}

/* ── 3D Heatmap & Visual Alignment ───────────────────────────── */
.panel-info-group {
    height: 180px; /* Strict fixed height to guarantee image alignment across all panels */
    display: flex;
    flex-direction: column;
    justify-content: center; /* Center text vertically for better balance */
    margin-bottom: 20px;
    overflow: hidden; /* Prevent text overflow from pushing images */
}

.panel-visual {
    position: relative;
    height: 380px; /* Increased height for better detail */
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: rgba(0, 0, 0, 0.15);
    margin-top: 20px;
    border: 1px solid var(--border);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2) inset, 0 8px 32px rgba(0,0,0,0.15);
    cursor: crosshair;
}

.panel-visual img, .panel-visual canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
    object-fit: contain;
    border-radius: var(--radius-sm);
}

.panel-visual canvas {
    cursor: grab;
}

.panel-visual canvas:active {
    cursor: grabbing;
}

/* ── Refined Zoom Button Group ──────────────────────────────────── */
.btn-zoom-group {
    position: absolute;
    top: 15px;
    right: 15px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 100;
    opacity: 0.6;
    transition: opacity 0.3s;
}

.panel-visual:hover .btn-zoom-group {
    opacity: 1;
}

.btn-zoom-action {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--blue);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: #fff;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn-zoom-action:hover {
    background: var(--text-primary);
    transform: scale(1.1);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

.zoom-in { order: 1; }
.zoom-out { order: 2; }

/* ── Modal Zoom Controls ───────────────────────────────────────── */
.zoom-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 10px 24px;
    border-radius: 40px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.zoom-control-btn {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s, transform 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.zoom-control-btn:hover {
    opacity: 1;
    transform: scale(1.2);
}

.zoom-level {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 700;
    color: #fff;
    min-width: 60px;
    text-align: center;
}


/* ── Results Footer ────────────────────────────────────────────── */
.results-footer {
    display: flex;
    justify-content: center;
    padding: 60px 0 40px;
    border-top: 2px solid var(--border);
    margin-top: 60px;
    position: relative;
    z-index: 10;
}

.btn-new-analysis {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 16px 40px;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--glass-shadow);
}

.btn-new-analysis:hover {
    background: var(--bg-card-hover);
    border-color: var(--indigo);
    color: var(--indigo);
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.btn-new-analysis svg {
    color: var(--indigo);
    opacity: 0.8;
}


/* ── Splash Screen ─────────────────────────────────────────────── */
.splash-screen {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: #050608; /* Always dark tech background */
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: visible;
    opacity: 1;
    transition: opacity 0.8s ease-in-out, visibility 0.8s;
}

.splash-screen.fade-out {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.splash-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}


.splash-screen {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: #050608;
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: visible;
    opacity: 1;
    transition: opacity 0.8s ease-in-out, visibility 0.8s;
}

.splash-screen.fade-out {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.splash-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.splash-logo-container {
    position: relative;
    padding: 24px;
    filter: drop-shadow(0 0 15px rgba(100, 100, 100, 0.4));
    overflow: hidden;
}

/* Radar scan effect */
.splash-logo-container::after {
    content: '';
    position: absolute;
    top: -50%;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--border-accent);
    box-shadow: 0 0 20px 5px var(--border-accent);
    opacity: 0.6;
    animation: radar-scan 3s linear infinite;
    pointer-events: none;
    z-index: 10;
}

@keyframes radar-scan {
    0% { transform: translateY(0); }
    100% { transform: translateY(200px); }
}

.splash-logo {
    color: var(--logo-blue);
    animation: splash-pulse 2s ease-in-out infinite alternate;
}

.splash-outer {
    stroke-dasharray: 100;
    stroke-dashoffset: 100;
    transform-origin: center;
    animation: draw-svg 2s forwards cubic-bezier(0.4, 0, 0.2, 1), splash-spin 8s linear infinite 2s;
}

.splash-inner {
    stroke-dasharray: 60;
    stroke-dashoffset: 60;
    transform-origin: center;
    animation: draw-svg 1.5s forwards cubic-bezier(0.4, 0, 0.2, 1) 0.5s, splash-spin-reverse 12s linear infinite 2s;
}

.splash-core {
    transform: scale(0);
    transform-origin: center;
    animation: pop-core 0.5s forwards cubic-bezier(0.175, 0.885, 0.32, 1.275) 1.8s;
}

@keyframes draw-svg {
    to { stroke-dashoffset: 0; }
}

@keyframes pop-core {
    to { transform: scale(1); }
}

@keyframes splash-pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    100% { transform: scale(1.05); opacity: 1; filter: drop-shadow(0 0 30px var(--logo-blue)); }
}

@keyframes splash-spin {
    100% { transform: rotate(360deg); }
}

@keyframes splash-spin-reverse {
    100% { transform: rotate(-360deg); }
}

.splash-text-container {
    text-align: center;
    position: relative;
}

.splash-title {
    font-family: var(--font-sans);
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: 12px;
    color: #fff;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 20px rgba(100, 100, 100, 0.6);
    /* Glitch initialization */
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    animation: glitch-reveal 2s cubic-bezier(0.77, 0, 0.175, 1) forwards;
}

@keyframes glitch-reveal {
    0% { transform: translateY(20px); opacity: 0; clip-path: polygon(0 100%, 100% 100%, 100% 100%, 0 100%); }
    20% { opacity: 1; clip-path: polygon(0 80%, 100% 20%, 100% 100%, 0 100%); transform: translateX(-5px); }
    40% { clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%); transform: translateX(5px); }
    60% { transform: translateX(-2px); filter: hue-rotate(90deg); }
    80% { transform: translateX(2px); filter: hue-rotate(-90deg); }
    100% { transform: translateY(0); opacity: 1; filter: none; clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%); }
}

.splash-subtitle {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--aqua);
    letter-spacing: 4px;
    opacity: 0.8;
    display: inline-block;
    /* Typewriter bounds */
    clip-path: inset(0 100% 0 0);
    animation: typewriter 2s steps(30) 1s forwards;
}

@keyframes typewriter {
    to { clip-path: inset(0 0 0 0); }
}

.splash-progress {
    width: 280px;
    height: 4px;
    background: repeating-linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.05),
        rgba(255, 255, 255, 0.05) 4px,
        transparent 4px,
        transparent 8px
    );
    position: relative;
    margin-top: 1rem;
    box-shadow: 0 0 10px rgba(0, 188, 235, 0.1);
}

.splash-progress-bar {
    position: absolute;
    top: 0; left: 0; height: 100%;
    background: var(--aqua);
    box-shadow: 0 0 15px var(--aqua), 0 0 5px #fff;
    -webkit-mask-image: repeating-linear-gradient(90deg, #000, #000 4px, transparent 4px, transparent 8px);
    width: 0%;
    animation: splash-fill-segments 3s cubic-bezier(0.1, 0.8, 0.3, 1) 1.2s forwards;
}

@keyframes splash-fill-segments {
    0% { width: 0%; }
    20% { width: 30%; }
    40% { width: 45%; }
    60% { width: 80%; }
    80% { width: 85%; }
    100% { width: 100%; }
}

.splash-subtitle .dot-1, .splash-subtitle .dot-2, .splash-subtitle .dot-3 {
    animation: splash-blink 1.5s infinite;
}
.splash-subtitle .dot-2 { animation-delay: 0.3s; }
.splash-subtitle .dot-3 { animation-delay: 0.6s; }

@keyframes splash-blink {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}