:root {
  --bg: #090d15;
  --bg-soft: #111823;
  --panel: #151e2a;
  --panel-2: #1f2b3a;
  --text: #ecf2ff;
  --text-muted: #a7b8d5;
  --accent: #73e4ff;
  --accent-2: #9b5cff;
  --accent-soft: rgba(115, 228, 255, 0.18);
  --border: #2e415f;
  --shadow: 0 16px 35px rgba(5, 10, 20, 0.35);
  --radius: 16px;
  --radius-sm: 12px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --maxw: 1160px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Trebuchet MS", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 10%, rgba(115, 228, 255, 0.1), transparent 40%),
    radial-gradient(circle at 80% 20%, rgba(155, 92, 255, 0.12), transparent 45%),
    var(--bg);
  line-height: 1.5;
}

img {
  max-width: 100%;
  height: auto;
}

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

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0.5rem;
}

.skip-link:focus {
  left: 1rem;
  z-index: 10;
  background: #fff;
  color: #000;
  padding: 0.5rem 0.8rem;
  border-radius: 999px;
}

.container {
  width: min(100% - 2rem, var(--maxw));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(9, 13, 21, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.75rem 0;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text);
  font-size: 1.1rem;
}

.nav-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  padding: 0;
  margin: 0;
}

.nav-links a {
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  border: 1px solid transparent;
}

.nav-links a:hover,
.nav-links a:focus {
  border-color: var(--accent);
  background: rgba(115, 228, 255, 0.1);
}

.section {
  padding: var(--space-5) 0;
}

.hero {
  padding-top: var(--space-5);
}

.hero-inner {
  max-width: 760px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-size: 0.78rem;
  margin: 0 0 var(--space-2);
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h1 {
  margin: 0 0 var(--space-2);
  font-size: clamp(1.6rem, 6vw, 2.3rem);
}

.lead {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.hero-actions {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: linear-gradient(120deg, var(--accent-soft), rgba(155, 92, 255, 0.12));
  color: var(--text);
  padding: 0.7rem 1rem;
  border-radius: 999px;
  font-weight: 600;
  min-height: 42px;
  white-space: nowrap;
}

.button:hover,
.button:focus-visible {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.button-ghost {
  background: transparent;
}

.section h2 {
  margin: 0 0 1rem;
}

.status {
  margin: 0 0 1rem;
  color: #ffcf57;
  background: rgba(255, 207, 87, 0.1);
  border: 1px solid rgba(255, 207, 87, 0.35);
  padding: 0.6rem;
  border-radius: var(--radius-sm);
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.card {
  background: linear-gradient(175deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 20px 42px rgba(5, 10, 20, 0.45);
}

.card h3 {
  margin: 0 0 0.45rem;
}

.project-meta {
  margin: 0.45rem 0;
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.pill {
  font-size: 0.75rem;
  background: rgba(115, 228, 255, 0.14);
  color: #d9f7ff;
  border: 1px solid rgba(115, 228, 255, 0.35);
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  white-space: nowrap;
}

.description {
  margin: 0.5rem 0 1rem;
  color: var(--text-muted);
}

.project-media {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin: 0 0 0.75rem;
  background: radial-gradient(circle at 20% 20%, rgba(115, 228, 255, 0.2), rgba(10, 17, 26, 0.2));
  border: 1px solid rgba(115, 228, 255, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.project-media[hidden] {
  display: none;
}

.project-media-book {
  aspect-ratio: 4 / 5;
}

.project-image,
.project-image-fallback {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.project-image-cover,
.project-image-fallback.project-image-cover {
  object-fit: contain;
  background: #0a1019;
}

.project-image-fallback {
  text-align: center;
  padding: 0.75rem;
  font-size: 0.9rem;
  line-height: 1.3;
}

.project-image-fallback::after {
  content: "No image yet";
  display: block;
  opacity: 0.8;
  margin-top: 0.3rem;
  font-size: 0.82rem;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.7rem;
}

.links a {
  color: var(--accent);
}

.links a::after {
  content: "↗";
  margin-left: 0.28rem;
  font-size: 0.75rem;
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

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

.filter-btn {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--text);
  padding: 0.45rem 0.85rem;
  cursor: pointer;
}

.filter-btn.active {
  border-color: var(--accent);
  background: rgba(115, 228, 255, 0.12);
}

.category-section {
  margin-bottom: 2rem;
}

.category-section h3 {
  margin: 0.2rem 0 0.8rem;
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
}

.site-footer {
  padding: var(--space-4) 0;
  border-top: 1px solid var(--border);
  background: rgba(9, 13, 21, 0.75);
}

.footer-inner {
  display: grid;
  gap: 0.45rem;
  color: var(--text-muted);
}

@media (min-width: 720px) {
  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-actions {
    gap: 0.9rem;
  }

  .section-head {
    align-items: center;
    justify-content: space-between;
    flex-direction: row;
  }
}

@media (min-width: 1080px) {
  .card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}