/* === NFSW FaceSwap - Design moderne sombre === */
:root {
    --bg: #0a0a0f;
    --bg-2: #11111a;
    --bg-3: #1a1a25;
    --border: #25253a;
    --text: #e9e9f0;
    --text-dim: #a0a0b8;
    --text-mute: #6b6b85;
    --primary: #7c3aed;
    --primary-2: #ec4899;
    --primary-grad: linear-gradient(135deg, #7c3aed 0%, #ec4899 100%);
    --success: #10b981;
    --warn: #f59e0b;
    --danger: #ef4444;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 10px 30px rgba(0,0,0,0.4);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* === NAVBAR === */
.navbar {
    position: sticky; top: 0; z-index: 50;
    background: rgba(10,10,15,0.85);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-size: 17px; }
.brand strong { background: var(--primary-grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--text-dim); font-size: 14px; font-weight: 500; transition: color .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }

@media (max-width: 720px) {
    .nav-links { gap: 16px; font-size: 13px; }
    .nav-links a:nth-child(n+3) { display: none; }
}

/* === HERO === */
.hero {
    padding: 80px 0 40px;
    text-align: center;
    background: radial-gradient(ellipse at top, rgba(124,58,237,0.15) 0%, transparent 60%),
                radial-gradient(ellipse at bottom, rgba(236,72,153,0.1) 0%, transparent 60%);
}
.hero-sm { padding: 60px 0 30px; }
.hero h1 {
    font-size: clamp(36px, 5.5vw, 64px);
    line-height: 1.1; margin: 18px 0 22px;
    letter-spacing: -0.02em;
    font-weight: 800;
}
.grad { background: var(--primary-grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero .lead { font-size: 18px; color: var(--text-dim); max-width: 680px; margin: 0 auto; }
.badge-pill {
    display: inline-block;
    padding: 7px 16px;
    border-radius: 100px;
    background: rgba(124,58,237,0.12);
    border: 1px solid rgba(124,58,237,0.3);
    color: #c4b5fd;
    font-size: 13px; font-weight: 500;
}

/* === BUTTONS === */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 22px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font-size: 14px; font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    font-family: inherit;
}
.btn-primary { background: var(--primary-grad); color: white; box-shadow: 0 4px 20px rgba(124,58,237,0.35); }
.btn-primary:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 6px 26px rgba(124,58,237,0.5); }
.btn-primary:disabled { opacity: .45; cursor: not-allowed; }
.btn-outline { background: transparent; color: var(--text); border-color: var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-lg { padding: 16px 32px; font-size: 16px; }
.btn-block { width: 100%; }
.btn-mini { padding: 6px 12px; font-size: 12px; border-radius: 6px; background: var(--bg-3); color: var(--text); border: 1px solid var(--border); cursor: pointer; }
.btn-mini:hover { border-color: var(--primary); }
.btn-danger { color: var(--danger); border-color: rgba(239,68,68,0.3); }
.btn-danger:hover { background: rgba(239,68,68,0.1); }

/* === SWAP APP === */
.app-section { padding: 30px 0 80px; }
.swap-app {
    background: linear-gradient(180deg, var(--bg-2), var(--bg));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px;
    box-shadow: var(--shadow);
}
.swap-grid { display: grid; grid-template-columns: 1fr auto 1fr; gap: 20px; align-items: stretch; }
.swap-arrow { display: flex; align-items: center; justify-content: center; color: var(--primary); }
.drop-zone {
    background: var(--bg-3);
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    min-height: 280px;
    display: flex; align-items: center; justify-content: center;
    text-align: center;
    padding: 28px;
    cursor: pointer;
    transition: all .2s;
    position: relative;
    overflow: hidden;
}
.drop-zone:hover { border-color: var(--primary); background: #1f1f2e; }
.drop-zone.drag-over { border-color: var(--primary-2); background: rgba(124,58,237,0.1); transform: scale(1.01); }
.drop-zone.has-file { border-style: solid; border-color: var(--success); }
.drop-icon { color: var(--primary); margin-bottom: 10px; }
.drop-label h3 { margin: 4px 0 8px; font-size: 18px; }
.drop-label p { color: var(--text-dim); font-size: 13px; margin: 0 0 18px; }
.preview { width: 100%; height: 100%; }
.preview img, .preview video {
    width: 100%; height: 100%;
    max-height: 320px; object-fit: contain;
    border-radius: 8px;
}
.swap-action { margin-top: 28px; text-align: center; }
.hint { margin-top: 12px; color: var(--text-mute); font-size: 13px; }

@media (max-width: 800px) {
    .swap-grid { grid-template-columns: 1fr; }
    .swap-arrow { transform: rotate(90deg); padding: 8px 0; }
    .swap-app { padding: 22px; }
}

/* === PROGRESS === */
.progress-box {
    margin-top: 24px;
    display: flex; gap: 18px; align-items: center;
    padding: 18px;
    background: rgba(124,58,237,0.1);
    border: 1px solid rgba(124,58,237,0.3);
    border-radius: var(--radius);
}
.progress-box > div { flex: 1; }
.progress-bar { background: var(--bg-3); height: 8px; border-radius: 4px; overflow: hidden; margin: 8px 0; }
.progress-bar span { display: block; height: 100%; width: 5%; background: var(--primary-grad); border-radius: 4px; transition: width .4s ease; }
.spinner {
    width: 40px; height: 40px;
    border: 3px solid var(--bg-3);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* === RESULT === */
.result-box { margin-top: 28px; padding: 28px; background: rgba(16,185,129,0.08); border: 1px solid rgba(16,185,129,0.3); border-radius: var(--radius); text-align: center; }
.result-box h3 { margin: 0 0 18px; color: var(--success); }
.result-preview { margin: 18px 0; }
.result-preview img, .result-preview video { max-height: 480px; margin: 0 auto; border-radius: 12px; box-shadow: 0 10px 40px rgba(0,0,0,0.5); }
.result-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 18px; }

/* === ALERT === */
.alert { padding: 14px 18px; border-radius: 10px; margin: 18px 0; }
.alert-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }

/* === FEATURES === */
.features { padding: 70px 0; background: var(--bg-2); }
.features h2 { text-align: center; font-size: 36px; margin: 0 0 50px; }
.feat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.feat { padding: 28px; background: var(--bg-3); border-radius: var(--radius); border: 1px solid var(--border); transition: all .2s; }
.feat:hover { transform: translateY(-3px); border-color: var(--primary); }
.feat-icon { width: 52px; height: 52px; border-radius: 12px; background: var(--primary-grad); display: flex; align-items: center; justify-content: center; color: white; margin-bottom: 16px; }
.feat h3 { margin: 0 0 8px; font-size: 18px; }
.feat p { margin: 0; color: var(--text-dim); font-size: 14px; }

/* === STEPS === */
.how-it-works { padding: 70px 0; }
.how-it-works h2 { text-align: center; font-size: 36px; margin: 0 0 50px; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.step { text-align: center; padding: 20px; }
.step-num { display: inline-block; width: 48px; height: 48px; line-height: 48px; border-radius: 50%; background: var(--primary-grad); color: white; font-weight: 700; font-size: 20px; margin-bottom: 14px; }
.step h3 { margin: 8px 0; font-size: 17px; }
.step p { color: var(--text-dim); font-size: 14px; }

/* === FAQ === */
.faq { padding: 70px 0; background: var(--bg-2); }
.faq h2 { text-align: center; font-size: 36px; margin: 0 0 40px; }
.faq details { background: var(--bg-3); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; margin-bottom: 12px; max-width: 760px; margin-left: auto; margin-right: auto; }
.faq summary { cursor: pointer; font-weight: 600; outline: none; }
.faq details[open] { border-color: var(--primary); }
.faq p { color: var(--text-dim); margin: 12px 0 0; }

/* === FOOTER === */
.footer { padding: 50px 0 30px; border-top: 1px solid var(--border); background: var(--bg-2); }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 30px; padding-bottom: 30px; border-bottom: 1px solid var(--border); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--text-dim); font-size: 14px; }
.footer-links a:hover { color: var(--text); }
.footer-bottom { padding-top: 24px; color: var(--text-mute); font-size: 13px; text-align: center; }

/* === GALLERY === */
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; }
.gallery-item { background: var(--bg-3); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.gallery-item img, .gallery-item video { width: 100%; height: 280px; object-fit: cover; background: black; }
.gallery-meta { display: flex; justify-content: space-between; align-items: center; padding: 12px; }
.badge { background: var(--primary-grad); color: white; padding: 4px 10px; border-radius: 100px; font-size: 12px; font-weight: 600; }
.empty-state { text-align: center; padding: 80px 20px; color: var(--text-dim); }
.empty-state h3 { color: var(--text); margin: 18px 0 8px; }

/* === AUTH PAGE === */
.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 30px; background: radial-gradient(ellipse at top, rgba(124,58,237,0.2) 0%, transparent 60%); }
.auth-card { width: 100%; max-width: 420px; background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; box-shadow: var(--shadow); }
.auth-logo { width: 64px; height: 64px; border-radius: 16px; background: var(--primary-grad); display: flex; align-items: center; justify-content: center; color: white; margin: 0 auto 18px; }
.auth-card h1 { text-align: center; margin: 0 0 6px; font-size: 22px; }
.auth-sub { text-align: center; color: var(--text-dim); margin: 0 0 28px; font-size: 14px; }
.auth-form { display: grid; gap: 16px; }
.auth-form label { display: grid; gap: 6px; font-size: 13px; color: var(--text-dim); }
.auth-form input, .form-grid input { background: var(--bg-3); border: 1px solid var(--border); color: var(--text); padding: 12px 14px; border-radius: 8px; font-size: 14px; font-family: inherit; outline: none; transition: border .2s; }
.auth-form input:focus, .form-grid input:focus { border-color: var(--primary); }
.auth-back { display: block; text-align: center; margin-top: 22px; color: var(--text-dim); font-size: 13px; }

/* === ADMIN === */
.admin-body { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; background: var(--bg); }
.sidebar { background: var(--bg-2); border-right: 1px solid var(--border); padding: 24px 18px; display: flex; flex-direction: column; }
.sidebar-brand { display: flex; align-items: center; gap: 10px; padding: 0 8px 22px; border-bottom: 1px solid var(--border); margin-bottom: 18px; color: var(--text); }
.sidebar-nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.sidebar-nav a { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 8px; color: var(--text-dim); font-size: 14px; transition: all .2s; }
.sidebar-nav a:hover { background: var(--bg-3); color: var(--text); }
.sidebar-nav a.active { background: rgba(124,58,237,0.15); color: var(--primary); }
.sidebar-foot { display: flex; flex-direction: column; gap: 8px; padding-top: 18px; border-top: 1px solid var(--border); font-size: 13px; color: var(--text-mute); }
.sidebar-foot a:hover { color: var(--text); }

.admin-main { padding: 32px 38px; }
.admin-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; }
.admin-header h1 { margin: 0; font-size: 28px; }
.admin-header p { margin: 0; color: var(--text-dim); font-size: 14px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; display: flex; flex-direction: column; gap: 6px; }
.stat-card .stat-label { color: var(--text-dim); font-size: 13px; }
.stat-card strong { font-size: 32px; font-weight: 700; }
.stat-ok strong { color: var(--success); }
.stat-warn strong { color: var(--warn); }
.stat-err strong { color: var(--danger); }

.card { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-bottom: 22px; }
.card h3 { margin: 0 0 14px; font-size: 17px; }
.chart-wrap { position: relative; height: 280px; }
.form-grid { display: grid; gap: 14px; margin-bottom: 18px; }
.form-grid label { display: grid; gap: 6px; font-size: 13px; color: var(--text-dim); }
.muted { color: var(--text-mute); font-size: 14px; }
.muted.small { font-size: 12px; margin-top: 8px; }

.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; }
.data-table th { font-weight: 600; color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
.data-table code { background: var(--bg-3); padding: 2px 6px; border-radius: 4px; font-size: 12px; }
.status-pill { display: inline-block; padding: 4px 10px; border-radius: 100px; font-size: 11px; font-weight: 600; text-transform: uppercase; }
.status-completed { background: rgba(16,185,129,0.15); color: var(--success); }
.status-processing { background: rgba(245,158,11,0.15); color: var(--warn); }
.status-failed { background: rgba(239,68,68,0.15); color: var(--danger); }
.status-pending { background: rgba(160,160,184,0.15); color: var(--text-dim); }

@media (max-width: 800px) {
    .admin-body { grid-template-columns: 1fr; }
    .sidebar { flex-direction: row; padding: 14px; overflow-x: auto; }
    .sidebar-brand { display: none; }
    .sidebar-nav { flex-direction: row; gap: 4px; }
    .sidebar-nav a { white-space: nowrap; padding: 8px 12px; font-size: 13px; }
    .sidebar-foot { display: none; }
    .admin-main { padding: 20px 16px; }
    .admin-header { flex-direction: column; align-items: flex-start; gap: 10px; }
}