/* ─── Shared Design System ─── */
:root {
    --bg: #0a0a0a;
    --surface: #141414;
    --surface-hover: #1a1a1a;
    --border: #222;
    --text: #e8e8e8;
    --text-dim: #888;
    --text-dimmer: #555;
    --accent: #c99678;
    --accent-dim: #a87a60;
    --fox: #e07a3a;
    --green: #9fbba7;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: -20%; left: -10%;
    width: 60%; height: 60%;
    background: radial-gradient(ellipse, rgba(201,150,120,0.04) 0%, transparent 70%);
    pointer-events: none; z-index: 0;
}

body::after {
    content: '';
    position: fixed;
    bottom: -20%; right: -10%;
    width: 50%; height: 50%;
    background: radial-gradient(ellipse, rgba(100,120,160,0.03) 0%, transparent 70%);
    pointer-events: none; z-index: 0;
}

.grain {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none; z-index: 9999; opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 128px 128px;
}

.scroll-progress {
    position: fixed; top: 0; left: 0;
    height: 2px; width: 0%;
    background: var(--accent); z-index: 10000;
    transition: width 0.05s linear;
}

a { color: var(--accent); text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.8; }

.container { max-width: 780px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

/* ─── Typography ─── */
h1, h2, h3, h4 { font-weight: 600; }

.section-label {
    font-size: 0.75rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.15em;
    color: var(--text-dimmer); margin-bottom: 32px;
    display: flex; align-items: center; gap: 10px;
}
.section-label::before {
    content: ''; display: inline-block;
    width: 24px; height: 1px;
    background: var(--accent); flex-shrink: 0;
}

/* ─── Hero ─── */
.hero { padding: 120px 0 80px; position: relative; }
.hero .container-inner { position: relative; z-index: 1; }
.hero h1 { font-size: 1.1rem; font-weight: 500; letter-spacing: 0.04em; color: var(--text-dim); margin-bottom: 24px; }
.hero .tagline { font-size: 2.5rem; font-weight: 700; line-height: 1.15; margin-bottom: 12px; letter-spacing: -0.02em; }
.hero .tagline .dim { color: var(--text-dim); font-weight: 300; }
.hero .accent-line {
    width: 48px; height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
    margin-bottom: 24px; border-radius: 1px;
    animation: accentPulse 4s ease-in-out infinite;
}
@keyframes accentPulse { 0%, 100% { width: 48px; opacity: 0.6; } 50% { width: 72px; opacity: 1; } }
.hero .sub { font-size: 1.05rem; color: var(--text-dim); max-width: 480px; line-height: 1.7; }
.links { display: flex; gap: 20px; margin-top: 32px; flex-wrap: wrap; }
.links a { font-size: 0.9rem; color: var(--text-dim); padding: 6px 0; border-bottom: 1px solid transparent; }
.links a:hover { color: var(--text); border-bottom-color: var(--text-dimmer); opacity: 1; }

.hero-geo {
    position: absolute; top: 50%; left: 50%;
    width: 320px; height: 320px;
    margin: -160px 0 0 -160px;
    opacity: 0.1; pointer-events: none; z-index: 0;
}
.hero-geo-inner {
    width: 100%; height: 100%;
    border: 1.5px solid var(--accent);
    transform: rotate(45deg);
    animation: geoMorph 20s ease-in-out infinite;
}
@keyframes geoMorph {
    0%, 100% { transform: rotate(45deg) scale(1); border-radius: 0; }
    25% { transform: rotate(50deg) scale(1.05); border-radius: 12px; }
    50% { transform: rotate(55deg) scale(1); border-radius: 50%; }
    75% { transform: rotate(50deg) scale(0.95); border-radius: 12px; }
}

/* ─── Tagline hover ─── */
.tagline .dim {
    transition: font-size 0.3s ease, color 0.3s ease, font-weight 0.3s ease;
    display: inline-block;
}
.tagline:hover .dim { font-size: 0.88em; color: var(--text-dimmer); font-weight: 200; }

.spin {
    display: inline-block; cursor: pointer;
    transition: opacity 0.15s, transform 0.15s;
    padding: 2px 6px; border-radius: 4px;
    min-width: 160px;
}
.spin.dim { min-width: 220px; }
.spin:hover { opacity: 0.5; transform: translateY(-2px); }
.spin.cycling { opacity: 0.3; transform: translateY(-4px); }

/* ─── Featured Section ─── */
.featured { margin-bottom: 48px; }

.featured-card {
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
    display: flex;
    overflow: hidden;
    color: var(--text);
    position: relative;
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out, background 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.featured-card.card-visible {
    opacity: 1; transform: translateY(0);
}
.featured-card:hover {
    background: var(--surface-hover);
    border-color: #333;
    opacity: 1;
    box-shadow: 0 0 30px rgba(201,150,120,0.05);
}
.featured-card.card-visible:hover {
    transform: translateY(-2px);
}

/* Hero featured (Divergence) */
.featured-card.flagship {
    border: 1px solid transparent;
    background: linear-gradient(var(--surface), var(--surface)) padding-box,
                linear-gradient(135deg, var(--accent), var(--fox), var(--accent-dim), var(--accent)) border-box;
    background-size: 100% 100%, 300% 300%;
    animation: flagshipBorder 6s ease infinite;
    margin-bottom: 16px;
}
@keyframes flagshipBorder {
    0%, 100% { background-position: 100% 100%, 0% 50%; }
    50% { background-position: 100% 100%, 100% 50%; }
}

.featured-img {
    width: 320px;
    min-height: 200px;
    flex-shrink: 0;
    background: var(--bg);
    overflow: hidden;
    position: relative;
}
.featured-img img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.featured-card:hover .featured-img img {
    transform: scale(1.03);
}

.img-placeholder {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-dimmer); font-size: 0.85rem;
    font-weight: 500; letter-spacing: 0.04em;
    text-transform: uppercase;
}

.featured-body {
    padding: 28px 32px;
    display: flex; flex-direction: column; justify-content: center;
    flex: 1;
}
.featured-body.compact { padding: 20px 24px; }

.card-header {
    display: flex; justify-content: space-between; align-items: flex-start;
    margin-bottom: 8px;
}
.card h3 { font-size: 1.05rem; font-weight: 600; }
.featured-body .card h3 { font-size: 1.15rem; }
.featured-body.compact .card h3 { font-size: 1rem; }

.badge {
    font-size: 0.68rem; font-weight: 600;
    color: var(--green); text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 3px 8px;
    border: 1px solid rgba(159,187,167,0.25);
    border-radius: 3px;
    white-space: nowrap;
}
.badge.inline {
    font-size: 0.68rem; padding: 2px 6px;
    margin-left: 8px;
}

.featured-body p { font-size: 0.9rem; color: var(--text-dim); line-height: 1.6; }

.tags { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem; padding: 3px 8px;
    border-radius: 3px;
    background: rgba(201, 150, 120, 0.08);
    color: var(--accent-dim);
    border: 1px solid rgba(201, 150, 120, 0.15);
    transition: color 0.25s, background 0.25s;
}
.featured-card:hover .tag { color: var(--accent); background: rgba(201, 150, 120, 0.12); }

/* Side-by-side grid for Drift + Terrarium */
.featured-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.featured-grid .featured-card { flex-direction: column; }
.featured-grid .featured-img {
    width: 100%; min-height: 180px; max-height: 220px;
}

/* ─── Also Section (project cards) ─── */
.projects { margin-bottom: 48px; }

.card {
    border: 1px solid var(--border);
    border-left: 2px solid transparent;
    border-radius: 8px;
    padding: 24px 28px;
    margin-bottom: 12px;
    background: var(--surface);
    transition: all 0.25s ease;
    display: block; color: var(--text);
    position: relative;
    opacity: 0; transform: translateY(20px);
}
.card.card-visible {
    opacity: 1; transform: translateY(0);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out, background 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.card:hover {
    background: var(--surface-hover);
    border-color: #333;
    border-left-color: var(--accent);
    opacity: 1;
    box-shadow: -2px 0 12px rgba(201,150,120,0.06), 0 0 20px rgba(201,150,120,0.04);
}
.card.card-visible:hover { transform: translateY(-1px); }

.card p { font-size: 0.9rem; color: var(--text-dim); line-height: 1.6; }
.card .arrow {
    color: var(--text-dimmer); font-size: 1.1rem;
    transition: transform 0.25s, color 0.25s;
}
.card:hover .arrow { transform: translateX(3px); color: var(--accent); }

/* ─── Toolbar (tech stack) ─── */
.toolbar {
    margin: 32px 0 48px;
    padding: 20px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}
.tool-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}
.tool {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    color: var(--text-dimmer);
    padding: 4px 12px;
    transition: color 0.2s;
}
.tool:hover { color: var(--text-dim); }
.dot {
    color: var(--text-dimmer); font-size: 0.5rem;
    opacity: 0.5; user-select: none;
}

/* Form elements */
input, textarea {
    width: 100%; padding: 10px 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px; color: var(--text);
    font-family: inherit; font-size: 0.9rem;
}
input:focus, textarea:focus { outline: none; border-color: var(--accent); }
button[type="submit"] {
    background: var(--accent); color: var(--bg);
    border: none; padding: 10px 24px;
    border-radius: 4px; font-family: inherit;
    font-weight: 600; cursor: pointer; font-size: 0.9rem;
}
.form-group { margin-bottom: 10px; }
.footer { padding-bottom: 32px; }
.divider { border: none; border-top: 1px solid var(--border); margin: 0; }
.footer-inner { padding-top: 40px; text-align: center; }
.footer-line {
    font-size: 1.1rem; color: var(--text-dim);
    margin-bottom: 16px;
}
.mailto {
    font-size: 1.1rem; font-weight: 600;
    display: inline-block; margin-bottom: 12px;
}
.footer-note {
    font-size: 0.82rem; color: var(--text-dimmer);
    margin-bottom: 40px;
}
.footer-credit {
    font-size: 0.72rem; color: var(--text-dimmer);
    letter-spacing: 0.02em;
}

/* ─── Fox easter egg ─── */
.fox-link {
    position: fixed; bottom: 24px; right: 24px;
    width: 40px; height: 40px; border-radius: 50%;
    background: var(--surface); border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; transition: all 0.3s; z-index: 50;
    text-decoration: none;
}
.fox-link:hover {
    background: var(--surface-hover);
    border-color: var(--fox);
    transform: scale(1.1); opacity: 1;
}

/* ─── Animations ─── */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeInUp 0.6s ease-out both; }
.fade-in-delay { animation: fadeInUp 0.6s ease-out 0.15s both; }
.fade-in-delay2 { animation: fadeInUp 0.6s ease-out 0.3s both; }

/* ─── Mobile ─── */
@media (max-width: 768px) {
    .featured-card { flex-direction: column; }
    .featured-img { width: 100%; min-height: 180px; max-height: 240px; }
    .featured-grid { grid-template-columns: 1fr; }
    .hero .tagline { font-size: 1.9rem; }
}

@media (max-width: 640px) {
    .container { padding: 0 16px; }
    .card { padding: 20px; }
    .featured-body { padding: 20px; }
}

@media (max-width: 400px) {
    .hero-geo { display: none; }
    .tool-row { gap: 8px; }
    .dot { display: none; }
}