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

:root {
    --bg: #0a0a0f;
    --bg-card: #12121a;
    --bg-card-hover: #1a1a25;
    --bg-input: #1a1a25;
    --border: #2a2a3a;
    --border-focus: #7c3aed;
    --text: #e4e4e7;
    --text-muted: #71717a;
    --accent: #7c3aed;
    --accent-hover: #6d28d9;
    --accent-glow: rgba(124, 58, 237, 0.3);
    --success: #22c55e;
    --radius: 12px;
    --radius-sm: 8px;
    --font: 'Inter', -apple-system, sans-serif;
    --mono: 'JetBrains Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Hero ────────────────────────────────────────────────────────── */
.hero {
    position: relative;
    text-align: center;
    padding: 80px 24px 48px;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: -120px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 400px;
    background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    opacity: 0.6;
}

.hero-badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: rgba(124, 58, 237, 0.1);
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 800;
    letter-spacing: -1px;
    background: linear-gradient(135deg, #fff 30%, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}

.hero-subtitle {
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.7;
}

/* ─── Generator Card ────────────────────────────────────────────── */
.generator-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    margin-bottom: 40px;
}

.input-row {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    margin-bottom: 28px;
}

.input-group {
    flex: 1;
}

.input-group label,
.theme-section > label,
.layout-picker > label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.input-group input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 15px;
    font-family: var(--mono);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-group input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.input-group input::placeholder { color: #4a4a5a; }

#generateBtn {
    padding: 12px 28px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
    white-space: nowrap;
}

#generateBtn:hover {
    background: var(--accent-hover);
    box-shadow: 0 4px 20px var(--accent-glow);
}

#generateBtn:active { transform: scale(0.97); }

/* ─── Layout Picker ─────────────────────────────────────────────── */
.layout-picker { margin-bottom: 28px; }

.layout-options {
    display: flex;
    gap: 10px;
}

.layout-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.layout-btn:hover { border-color: #3a3a4a; color: var(--text); }

.layout-btn.active {
    border-color: var(--accent);
    background: rgba(124, 58, 237, 0.1);
    color: var(--accent);
}

.layout-btn svg { flex-shrink: 0; }

/* ─── Theme Grid ────────────────────────────────────────────────── */
.theme-section .theme-count {
    font-weight: 400;
    color: #4a4a5a;
    font-size: 12px;
}

.theme-categories {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.theme-category-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.theme-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.theme-btn {
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.theme-btn:hover { border-color: #3a3a4a; color: var(--text); }

.theme-btn.active {
    border-color: var(--accent);
    background: rgba(124, 58, 237, 0.15);
    color: #fff;
}

.theme-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ─── Preview ───────────────────────────────────────────────────── */
.preview-section {
    margin-bottom: 40px;
    animation: fadeIn 0.3s ease;
}

.preview-section h2,
.showcase-section h2 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 4px;
}

.preview-wrapper {
    display: flex;
    justify-content: center;
    padding: 40px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin: 16px 0 24px;
}

.preview-card img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* ─── Embed Codes ───────────────────────────────────────────────── */
.embed-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 8px;
}

.embed-tab {
    padding: 6px 16px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

.embed-tab.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.code-block {
    position: relative;
    background: #0d0d14;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px 60px 16px 16px;
    overflow-x: auto;
}

.code-block code {
    font-family: var(--mono);
    font-size: 13px;
    color: #a5b4fc;
    word-break: break-all;
    line-height: 1.6;
}

.copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.copy-btn:hover { color: var(--text); border-color: #3a3a4a; }
.copy-btn.copied { color: var(--success); border-color: var(--success); }

/* ─── Showcase Grid ─────────────────────────────────────────────── */
.showcase-section {
    margin-bottom: 60px;
}

.showcase-subtitle {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 20px;
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 16px;
}

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

.showcase-item:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.showcase-item img {
    width: 100%;
    display: block;
}

.showcase-item-label {
    padding: 10px 14px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.showcase-item-label span:last-child {
    font-weight: 400;
    font-size: 11px;
    color: #4a4a5a;
}

/* ─── Footer ────────────────────────────────────────────────────── */
footer {
    text-align: center;
    padding: 32px 24px;
    color: var(--text-muted);
    font-size: 13px;
    border-top: 1px solid var(--border);
}

/* ─── Animations ────────────────────────────────────────────────── */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ─── Responsive ────────────────────────────────────────────────── */
@media (max-width: 600px) {
    .hero { padding: 48px 16px 32px; }
    .generator-card { padding: 20px; }
    .input-row { flex-direction: column; }
    #generateBtn { width: 100%; }
    .layout-options { flex-wrap: wrap; }
    .showcase-grid { grid-template-columns: 1fr; }
    .preview-wrapper { padding: 20px 10px; }
}