@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
    --bg: #1a1620;
    --panel: #221d2b;
    --panel-2: #2a2433;
    --border: #3a3140;
    --text: #e7eaf2;
    --text-dim: #8b94a7;
    --cyan: #f472b6;
    --purple: #fbbf8c;
    --green: #34d399;
    --red: #f43f5e;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Space Grotesk', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ── Animated gradient background ───────────────────────────────── */
#bg-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

nav, section, footer { position: relative; z-index: 1; }

.mono { font-family: 'JetBrains Mono', monospace; }

/* ── Nav ─────────────────────────────────────────────────────────── */
nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 40px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: rgba(7,10,18,0.85);
    backdrop-filter: blur(8px);
    z-index: 100;
}
.logo {
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 0.04em;
}
.logo span { color: var(--cyan); }
.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}
.nav-links button {
    background: none;
    border: none;
    color: var(--text-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: pointer;
    padding: 6px 0;
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-color 0.2s;
}
.nav-links button:hover { color: var(--text); }
.nav-links button.active {
    color: var(--cyan);
    border-bottom-color: var(--cyan);
}
.btn-launch {
    background: var(--cyan);
    color: #2a1620 !important;
    padding: 8px 18px !important;
    border-radius: 6px;
    font-weight: 600 !important;
}

/* ── Sections ────────────────────────────────────────────────────── */
section { display: none; padding: 60px 40px 80px; max-width: 1200px; margin: 0 auto; }
section.active { display: block; }

/* ── Home ────────────────────────────────────────────────────────── */
.hero { text-align: center; padding: 80px 0 40px; }
.eyebrow {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    color: var(--cyan);
    text-transform: uppercase;
    margin-bottom: 24px;
}
.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 8px;
}
.hero h1 .gradient {
    background: linear-gradient(90deg, var(--cyan), var(--purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero p {
    color: var(--text-dim);
    font-size: 1rem;
    max-width: 620px;
    margin: 24px auto 32px;
    line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; margin-bottom: 60px; }
.btn-primary, .btn-secondary {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 14px 28px;
    border-radius: 8px;
    cursor: pointer;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
    transition: all 0.2s;
}
.btn-primary {
    background: var(--cyan);
    color: #2a1620;
    border: none;
    font-weight: 600;
}
.btn-primary:hover { background: #fb91c6; }
.btn-secondary:hover { border-color: var(--cyan); color: var(--cyan); }

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 80px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}
.hero-stat { text-align: center; }
.hero-stat .value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 2rem;
    font-weight: 700;
    color: var(--cyan);
}
.hero-stat .label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: var(--text-dim);
    text-transform: uppercase;
    margin-top: 6px;
}

/* ── Cards / Panels ──────────────────────────────────────────────── */
.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
}
.section-head { margin-bottom: 28px; }
.section-head .tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    color: var(--cyan);
    text-transform: uppercase;
    margin-bottom: 10px;
}
.section-head h2 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--cyan), var(--purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}
.section-head p { color: var(--text-dim); margin-top: 8px; font-size: 0.9rem; }

/* ── Detect page ─────────────────────────────────────────────────── */
.upload-zone {
    border: 1px dashed var(--border);
    border-radius: 14px;
    padding: 50px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s;
    margin-bottom: 20px;
}
.upload-zone:hover, .upload-zone.dragover { border-color: var(--cyan); }
.upload-zone .icon { font-size: 32px; color: var(--text-dim); margin-bottom: 12px; }
.upload-zone h3 { font-weight: 500; margin-bottom: 6px; }
.upload-zone .hint { color: var(--text-dim); font-size: 0.85rem; margin-bottom: 18px; }
.upload-zone input { display: none; }
.file-types {
    display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 16px;
}
.file-types span {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 3px 8px;
    color: var(--text-dim);
}

.preview-row {
    display: flex; align-items: center; gap: 16px;
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    margin-bottom: 20px;
}
.preview-row img, .preview-row video {
    width: 64px; height: 64px; object-fit: cover; border-radius: 8px; background: #000;
}
.preview-row .meta { flex: 1; }
.preview-row .meta .name { font-size: 0.9rem; }
.preview-row .meta .size { color: var(--text-dim); font-size: 0.75rem; margin-top: 4px; font-family: 'JetBrains Mono', monospace; }
.preview-row button {
    background: none; border: 1px solid var(--border); color: var(--text-dim);
    border-radius: 6px; padding: 8px 14px; cursor: pointer; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; letter-spacing: 0.1em;
}
.preview-row button:hover { border-color: var(--red); color: var(--red); }

.options-row {
    display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px;
}
.option-box {
    background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px;
}
.option-box label {
    display: block; font-family: 'JetBrains Mono', monospace; font-size: 0.65rem;
    letter-spacing: 0.2em; color: var(--text-dim); text-transform: uppercase; margin-bottom: 8px;
}
.option-box select {
    width: 100%; background: var(--bg); border: 1px solid var(--border); color: var(--text);
    padding: 8px 10px; border-radius: 6px; font-family: 'Space Grotesk', sans-serif; font-size: 0.85rem;
}

#scanBtn {
    width: 100%; margin-bottom: 28px;
}
#scanBtn:disabled { opacity: 0.5; cursor: not-allowed; }

.verdict-card {
    border-radius: 14px;
    padding: 28px;
    border: 1px solid var(--border);
    background: var(--panel);
    display: none;
}
.verdict-card.show { display: block; }
.verdict-top { display: flex; align-items: center; gap: 18px; margin-bottom: 24px; }
.verdict-icon {
    width: 56px; height: 56px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 26px; flex-shrink: 0;
}
.verdict-text h3 { font-size: 1.8rem; font-weight: 700; letter-spacing: 0.05em; }
.verdict-text p { color: var(--text-dim); font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; margin-top: 4px; }

.bar-row { margin-bottom: 14px; }
.bar-row .bar-label {
    display: flex; justify-content: space-between; font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem; color: var(--text-dim); margin-bottom: 6px;
}
.bar-bg { height: 8px; background: var(--panel-2); border-radius: 6px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 6px; transition: width 0.6s ease; }

.meta-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
    margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border);
}
.meta-grid .meta-label {
    font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; letter-spacing: 0.2em;
    color: var(--text-dim); text-transform: uppercase; margin-bottom: 6px;
}
.meta-grid .meta-value { font-family: 'JetBrains Mono', monospace; font-size: 1rem; }

/* ── Dashboard ───────────────────────────────────────────────────── */
.stat-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px;
}
.stat-card {
    background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 20px;
}
.stat-card .icon { font-size: 20px; color: var(--cyan); margin-bottom: 16px; }
.stat-card .value { font-family: 'JetBrains Mono', monospace; font-size: 1.8rem; font-weight: 700; }
.stat-card .label {
    font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; letter-spacing: 0.2em;
    color: var(--text-dim); text-transform: uppercase; margin-top: 8px;
}
.stat-card.accent .value { color: var(--purple); }
.stat-card.fake .value { color: var(--red); }
.stat-card.real .value { color: var(--green); }

.dash-grid {
    display: grid; grid-template-columns: 1.4fr 1fr; gap: 16px; margin-bottom: 24px;
}
.panel h4 {
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; letter-spacing: 0.2em;
    text-transform: uppercase; color: var(--text); margin-bottom: 4px;
}
.panel .sub { color: var(--text-dim); font-size: 0.8rem; margin-bottom: 20px; }

.history-list { display: flex; flex-direction: column; gap: 10px; }
.history-row {
    display: flex; align-items: center; justify-content: space-between;
    background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px;
    font-size: 0.85rem;
}
.history-row .name { color: var(--text-dim); font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; }
.history-row .badge {
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; letter-spacing: 0.1em;
    padding: 3px 10px; border-radius: 4px; font-weight: 600;
}
.badge.fake { color: var(--red); background: rgba(244,63,94,0.14); }
.badge.real { color: var(--green); background: rgba(52,211,153,0.14); }

.empty-state {
    text-align: center; color: var(--text-dim); padding: 40px 0; font-family: 'JetBrains Mono', monospace; font-size: 0.8rem;
}

.donut-wrap { display: flex; align-items: center; justify-content: center; padding: 10px 0; }
.legend { display: flex; gap: 24px; justify-content: center; margin-top: 16px; font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; }
.legend .dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; margin-right: 6px; }

.metrics-list { display: flex; flex-direction: column; gap: 18px; }
.metric-row .metric-top {
    display: flex; justify-content: space-between; font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; margin-bottom: 8px;
}
.metric-row .metric-top .name { color: var(--text-dim); letter-spacing: 0.1em; text-transform: uppercase; font-size: 0.7rem; }

/* ── About ───────────────────────────────────────────────────────── */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.about-grid .panel p { color: var(--text-dim); font-size: 0.9rem; line-height: 1.8; }
.about-grid h4 { margin-bottom: 12px; font-size: 1rem; font-weight: 500; color: var(--cyan); }
.tech-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tech-tags span {
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; letter-spacing: 0.05em;
    border: 1px solid var(--border); border-radius: 6px; padding: 4px 10px; color: var(--text-dim);
}

footer {
    text-align: center; padding: 28px; border-top: 1px solid var(--border);
    font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--text-dim);
}

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 900px) {
    nav { padding: 14px 20px; }
    .nav-links { gap: 16px; }
    section { padding: 30px 16px 60px; }
    .hero h1 { font-size: 2.4rem; }
    .hero-stats { flex-wrap: wrap; gap: 32px; }
    .options-row, .stat-grid, .dash-grid, .about-grid { grid-template-columns: 1fr; }
    .meta-grid { grid-template-columns: 1fr; gap: 10px; }
}