:root {
  color-scheme: dark;
  --bg: #0a0e14;
  --bg-alt: #0f141d;
  --surface: #131924;
  --surface-hover: #171f2d;
  --border: #232c3d;
  --text: #e6ebf2;
  --text-dim: #8b96a8;
  --text-faint: #5b6578;
  --accent: #f9a8d4;
  --accent-2: #f472b6;
  --accent-soft: rgba(249, 168, 212, 0.14);
  --accent-contrast: #3f0d28;
  --shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.6);
  --radius: 14px;
  --maxw: 960px;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f7f8fb;
  --bg-alt: #ffffff;
  --surface: #ffffff;
  --surface-hover: #f0f2f7;
  --border: #e3e7ef;
  --text: #12151c;
  --text-dim: #565f70;
  --text-faint: #94a0b3;
  --accent: #db2777;
  --accent-2: #be185d;
  --accent-soft: rgba(219, 39, 119, 0.08);
  --accent-contrast: #ffffff;
  --shadow: 0 20px 40px -20px rgba(20, 30, 50, 0.15);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* Background grid decoration */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 90%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 90%);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
}

.brand-mark {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  color: var(--accent);
}

.nav {
  display: flex;
  gap: 28px;
  margin-left: auto;
  margin-right: 24px;
}

.nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.15s ease;
}

.nav a:hover { color: var(--text); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.icon-btn:hover {
  background: var(--surface-hover);
  color: var(--text);
  border-color: var(--border);
}

.icon { width: 18px; height: 18px; display: block; }
.icon-inline { width: 14px; height: 14px; }

.icon-moon { display: none; }
:root[data-theme="light"] .icon-sun { display: none; }
:root[data-theme="light"] .icon-moon { display: block; }

.nav-burger { display: none; }

.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 8px 24px 16px;
  border-top: 1px solid var(--border);
}

.mobile-nav a {
  color: var(--text-dim);
  text-decoration: none;
  padding: 10px 0;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border);
}

.mobile-nav.open { display: flex; }

/* Hero */
.hero {
  padding: 120px 24px 80px;
}

.eyebrow {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  margin: 0 0 16px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.15;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
  max-width: 720px;
}

.hero-sub {
  color: var(--text-dim);
  font-size: 1.08rem;
  max-width: 560px;
  margin: 0 0 32px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 9px;
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-contrast);
}

.btn-primary:hover {
  background: color-mix(in srgb, var(--accent) 88%, white);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover { background: var(--surface-hover); }

.btn-sm { padding: 8px 14px; font-size: 0.86rem; }

/* Sections */
.section { padding: 72px 24px; }

.section-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 1.5rem;
  margin: 0 0 36px;
  letter-spacing: -0.01em;
}

.section-num {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  color: var(--accent);
  font-size: 0.95rem;
}

/* Project grid */
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.card-featured {
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
  box-shadow: var(--shadow);
}

.card-featured:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.card-placeholder {
  border-style: dashed;
  opacity: 0.7;
}

.card-top h3 {
  margin: 10px 0 10px;
  font-size: 1.35rem;
}

.card-desc {
  color: var(--text-dim);
  margin: 0;
  font-size: 0.95rem;
}

.card-tag-live, .card-tag-soon {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  padding: 4px 9px;
  border-radius: 999px;
}

.card-tag-live {
  background: var(--accent-soft);
  color: var(--accent);
}

.card-tag-soon {
  background: var(--surface-hover);
  color: var(--text-faint);
}

.card-features {
  margin: 0;
  padding-left: 18px;
  color: var(--text-dim);
  font-size: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.76rem;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text-dim);
}

.tag-muted { color: var(--text-faint); }

.card-actions { margin-top: auto; }

/* About */
.about-body {
  color: var(--text-dim);
  max-width: 640px;
  font-size: 1rem;
}

.about-body p { margin: 0 0 16px; }

/* Contact */
.contact-links {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 12px;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.95rem;
  width: fit-content;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 9px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.contact-link:hover {
  border-color: var(--accent);
  background: var(--surface-hover);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 24px 40px;
  color: var(--text-faint);
  font-size: 0.85rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* Responsive */
@media (min-width: 720px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .card-featured { grid-column: span 2; }
}

@media (max-width: 720px) {
  .nav { display: none; }
  .nav-burger { display: inline-flex; }
  .hero { padding: 96px 24px 56px; }
}

.br-desktop {
  display: inline;
}
@media (max-width: 560px) {
  .br-desktop { display: none; }
}