:root {
  --bg: #060811;
  --text: #e5ecf5;
  --muted: #9aacbf;
  --card: rgba(15, 20, 34, 0.7);
  --accent: #80e3ff;
  --border: rgba(128, 147, 171, 0.25);
  --shadow: 0 12px 40px rgba(3, 6, 16, 0.45);
}

:root[data-theme="light"] {
  --bg: #f4f7fb;
  --text: #0d1b2a;
  --muted: #4f6074;
  --card: rgba(255, 255, 255, 0.82);
  --accent: #1d7bff;
  --border: rgba(37, 71, 117, 0.2);
  --shadow: 0 8px 28px rgba(13, 27, 42, 0.12);
}

:root[data-theme="dark"] {
  --bg: #060811;
  --text: #e5ecf5;
  --muted: #9aacbf;
  --card: rgba(15, 20, 34, 0.72);
  --accent: #80e3ff;
  --border: rgba(128, 147, 171, 0.25);
  --shadow: 0 12px 40px rgba(3, 6, 16, 0.45);
}

:root[data-theme="sunset"] {
  --bg: #0f0b14;
  --text: #fff4e8;
  --muted: #c7b6a3;
  --card: rgba(35, 23, 40, 0.82);
  --accent: #ff9c6e;
  --border: rgba(255, 156, 110, 0.26);
  --shadow: 0 12px 40px rgba(15, 11, 20, 0.45);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 14% 18%, rgba(124, 231, 255, 0.14), transparent 26%),
    radial-gradient(circle at 82% 12%, rgba(255, 198, 131, 0.12), transparent 24%),
    radial-gradient(circle at 50% 82%, rgba(109, 138, 255, 0.18), transparent 30%),
    radial-gradient(1px 1px at 10% 20%, rgba(255, 255, 255, 0.5), transparent 0),
    radial-gradient(1px 1px at 40% 30%, rgba(255, 255, 255, 0.25), transparent 0),
    radial-gradient(1px 1px at 70% 22%, rgba(255, 255, 255, 0.3), transparent 0),
    radial-gradient(1px 1px at 30% 70%, rgba(255, 255, 255, 0.2), transparent 0),
    radial-gradient(1px 1px at 80% 68%, rgba(255, 255, 255, 0.24), transparent 0),
    linear-gradient(135deg, rgba(16, 23, 42, 0.9), rgba(6, 8, 17, 0.95));
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

main {
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
}
.page { max-width: 1000px; margin: 0 auto; padding: 2.5rem 1.5rem 4rem; width: 100%; }

.site-header, .site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.site-footer {
  border-top: 1px solid var(--border);
  border-bottom: none;
  font-size: 0.9rem;
  box-shadow: none;
}

.logo a { font-weight: 700; color: var(--text); }

.main-nav ul { list-style: none; display: flex; gap: 1rem; margin: 0; padding: 0; }
.main-nav a { color: var(--text); }
.main-nav a:hover { color: var(--accent); }

.header-actions { display: flex; align-items: center; gap: 0.6rem; }

.theme-toggle { display: flex; gap: 0.4rem; }
.theme-toggle button {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.35rem 0.65rem;
  cursor: pointer;
}
.theme-toggle button.active { border-color: var(--accent); color: var(--accent); }

.hero {
  background: radial-gradient(circle at 30% 20%, rgba(128, 227, 255, 0.14), transparent 40%), var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.25rem;
  margin: 2rem 0;
  box-shadow: var(--shadow);
}

.tiles {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 2rem 0;
}
.tiles article {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.recent {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}
.recent-column {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.content { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1.5rem; box-shadow: var(--shadow); }
.page-header { margin-bottom: 1rem; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.75rem; color: var(--muted); margin: 0 0 0.25rem; }
.lead { color: var(--muted); }
.meta { color: var(--muted); font-size: 0.9rem; }
.body p { margin: 0 0 1rem; }

.list .list-item { border-bottom: 1px solid var(--border); padding: 1rem 0; }
.list .list-item:last-child { border-bottom: none; }

.actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.button { display: inline-block; padding: 0.75rem 1rem; border-radius: 10px; background: var(--accent); color: #051323; font-weight: 600; box-shadow: var(--shadow); }
.button.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.button.ghost:hover { border-color: var(--accent); }

@media (max-width: 720px) {
  .site-header { flex-direction: column; align-items: flex-start; }
  .header-actions { width: 100%; justify-content: flex-start; }
}