@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Source+Serif+4:opsz,wght@8..60,500;8..60,600&display=swap");
@import url("font-awesome.min.css");
@import url("https://cdn.jsdelivr.net/gh/jpswalsh/academicons@1/css/academicons.min.css");

:root {
  --bg: #f5f6f4;
  --bg-alt: #e9eef6;
  --ink: #1e2530;
  --muted: #5a6676;
  --accent: #1b4b9a;
  --accent-2: #b56a3c;
  --card: #ffffff;
  --border: #e1e6ef;
  --shadow: 0 22px 48px rgba(13, 23, 41, 0.12);
  --shadow-sm: 0 12px 24px rgba(13, 23, 41, 0.1);
  --header-height: 96px;
  --header-height-shrink: 64px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: linear-gradient(140deg, var(--bg) 0%, var(--bg-alt) 55%, #fdfdfc 100%);
  min-height: 100vh;
  padding-top: var(--header-height);
  transition: padding-top 0.3s ease;
}

body.header-shrink {
  padding-top: var(--header-height-shrink);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(700px 420px at 10% -10%, rgba(27, 75, 154, 0.18), transparent 60%),
    radial-gradient(520px 380px at 95% 5%, rgba(181, 106, 60, 0.16), transparent 55%),
    radial-gradient(400px 420px at 50% 100%, rgba(27, 75, 154, 0.1), transparent 60%);
  z-index: -1;
}

img {
  max-width: 100%;
  display: block;
}

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

/* a:hover {
  color: #ffffff;
} */

h1, h2, h3, h4 {
  font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
  letter-spacing: 0.02em;
  margin: 0 0 0.75rem;
}

p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0.5rem;
  background: #fff;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}

.skip-link:focus {
  left: 1rem;
  z-index: 2000;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem 2.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  min-height: var(--header-height);
  transition: padding 0.3s ease, min-height 0.3s ease;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: inherit;
}

.brand img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #fff;
  box-shadow: var(--shadow-sm);
  transition: width 0.3s ease, height 0.3s ease;
}

.brand-name {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--ink);
  transition: font-size 0.3s ease;
}

.brand-sub {
  font-size: 0.95rem;
  color: var(--muted);
  display: block;
  transition: font-size 0.3s ease;
}

.site-nav {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-left: auto;
  transition: max-height 0.3s ease, opacity 0.3s ease;
}

.site-nav a {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #f5f7fb;
  color: var(--ink);
  font-weight: 500;
  transition: all 0.2s ease;
}

.site-nav a:hover,
.site-nav a.active {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
  transform: translateY(-1px);
}

.lang-toggle {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
}

.lang-toggle:hover {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.header-cta {
  margin-left: auto;
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.site-header.shrink {
  background: rgba(255, 255, 255, 0.5);
}

.site-header.shrink .header-inner {
  padding: 0.6rem 2.5rem;
  min-height: var(--header-height-shrink);
}

.site-header.shrink .brand img {
  width: 48px;
  height: 48px;
}

.site-header.shrink .brand-name {
  font-size: 1.1rem;
}

.site-header.shrink .brand-sub {
  font-size: 0.85rem;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #f5f7fb;
  color: var(--ink);
  font-weight: 600;
}

main {
  max-width: 1200px;
  margin: 1.5rem auto 4rem;
  padding: 0 2.5rem;
}

.section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 2.5rem;
}

.section-hero {
  background: linear-gradient(135deg, #ffffff 0%, #f1f3f8 100%);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 2rem;
  align-items: center;
}

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

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button.secondary {
  background: #fff;
  color: var(--accent);
  border-color: var(--border);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  background: #edf0f6;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
}

.link-list {
  display: grid;
  gap: 0.6rem;
  margin-top: 1.2rem;
}

.link-card {
  padding: 0.85rem 1rem;
  border-radius: 16px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #f9fafc;
}

.project-list {
  display: grid;
  gap: 1.5rem;
}

.project-list-compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-list-compact .project-card {
  grid-template-columns: 1fr;
}

.project-card {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1.5rem;
  align-items: center;
  padding: 1.25rem;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.project-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 12px;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.project-actions .button {
  padding: 0.35rem 0.9rem;
  font-size: 0.9rem;
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.media-card {
  background: #fff;
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.media-card img {
  width: 100%;
  height: auto;
  object-fit: contain;
  background: #f7f8fb;
}

.media-card figcaption {
  padding: 0.85rem 1rem 1rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.simple-list {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.video-frame {
  margin-top: 1.5rem;
  aspect-ratio: 16 / 9;
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border);
}

.site-footer {
  margin-top: 3rem;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--muted);
  font-weight: 500;
}

@media (max-width: 960px) {
  .header-inner {
    padding: 1rem 1.5rem;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
  }

  .lang-toggle {
    order: 2;
    margin-left: auto;
  }

  .site-nav {
    width: 100%;
    order: 3;
    display: grid;
    gap: 0.6rem;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    padding-top: 0;
  }

  .site-header.nav-open .site-nav {
    max-height: 500px;
    opacity: 1;
    padding-top: 0.6rem;
  }

  .header-cta {
    margin-left: 0;
  }

  main {
    padding: 0 1.5rem;
  }

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

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

  .project-list-compact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .header-inner {
    gap: 1rem;
  }

  .brand img {
    width: 52px;
    height: 52px;
  }

  .section {
    padding: 1.6rem;
  }

  .project-list-compact {
    grid-template-columns: 1fr;
  }
}

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