/* ---------- Tokens ---------- */
:root {
  --bg: #0b0d12;
  --bg-elev: #12151d;
  --surface: #161a24;
  --surface-hover: #1c2130;
  --border: #252b3a;
  --text: #e7eaf0;
  --text-muted: #8b93a7;
  --accent: #7c5cff;
  --accent-2: #22d3ee;
  --games: #f472b6;
  --webapps: #22d3ee;
  --tools: #facc15;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Inter, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: dark;
}

/* ---------- Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.1em 0.4em;
  border-radius: 6px;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 13, 18, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  font-weight: 700;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-mark {
  color: var(--accent);
}

.header-nav {
  display: flex;
  gap: 1.25rem;
}

.header-nav a {
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: color 0.15s;
}

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

/* ---------- Hero ---------- */
.hero {
  padding: 5rem 0 3rem;
  background:
    radial-gradient(600px 300px at 15% 0%, rgba(124, 92, 255, 0.18), transparent 70%),
    radial-gradient(500px 260px at 85% 20%, rgba(34, 211, 238, 0.12), transparent 70%);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent-2);
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 6vw, 3.75rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.lead {
  max-width: 560px;
  margin: 1rem 0 0;
  color: var(--text-muted);
  font-size: 1.1rem;
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.stat strong {
  color: var(--text);
  margin-right: 0.3rem;
}

/* ---------- Toolbar ---------- */
.projects {
  padding: 2rem 0 4rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filter-btn {
  font: inherit;
  font-size: 0.9rem;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.45rem 1rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.filter-btn:hover {
  color: var(--text);
  border-color: #3a4256;
}

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

.filter-btn:focus-visible,
.search:focus-visible,
.card:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 2px;
}

.search {
  font: inherit;
  font-size: 0.9rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.45rem 1rem;
  min-width: 220px;
  flex: 0 1 280px;
}

.search::placeholder {
  color: var(--text-muted);
}

/* ---------- Grid & cards ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s, background 0.2s, box-shadow 0.2s;
  animation: fade-in 0.3s ease both;
}

.card:hover {
  transform: translateY(-4px);
  background: var(--surface-hover);
  border-color: #3a4256;
  box-shadow: var(--shadow);
}

.card-thumb {
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  font-size: 3.5rem;
  background: linear-gradient(135deg, var(--cat-color, var(--accent)) -40%, var(--bg-elev) 70%);
  border-bottom: 1px solid var(--border);
}

.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.1rem 1.2rem 1.25rem;
  flex: 1;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.badge {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--cat-color, var(--accent));
}

.card h3 {
  margin: 0;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 0.4rem;
}

.tag {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.1rem 0.5rem;
}

.card-link {
  margin-top: 0.6rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--cat-color, var(--accent));
}

.card-static:hover {
  transform: none;
  box-shadow: none;
}

.card-static .card-link {
  color: var(--text-muted);
  font-weight: 500;
}

.card[data-category="games"] { --cat-color: var(--games); }
.card[data-category="webapps"] { --cat-color: var(--webapps); }
.card[data-category="tools"] { --cat-color: var(--tools); }

.empty {
  text-align: center;
  color: var(--text-muted);
  padding: 3rem 0;
}

/* ---------- About & footer ---------- */
.about {
  padding: 3rem 0 4rem;
  border-top: 1px solid var(--border);
}

.about h2 {
  margin-top: 0;
}

.about p {
  max-width: 640px;
  color: var(--text-muted);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.site-footer p {
  margin: 0;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card { animation: none; transition: none; }
  .card:hover { transform: none; }
}

/* ---------- Small screens ---------- */
@media (max-width: 600px) {
  .hero {
    padding: 3rem 0 2rem;
  }

  .search {
    flex: 1 1 100%;
    min-width: 0;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}