:root {
  color-scheme: light;
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #4b5563;
  --border: #d1d5db;
  --accent: #2563eb;
  --accent-contrast: #ffffff;
}

* {
  box-sizing: border-box;
}

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

.container {
  width: min(1000px, 92%);
  margin: 0 auto;
}

.site-header,
.site-footer {
  background: #0f172a;
  color: #e5e7eb;
  padding: 1.2rem 0;
}

.site-header h1,
.site-header p,
.site-footer p {
  margin: 0.35rem 0;
}

.subtitle {
  color: #cbd5e1;
}

.header-actions,
.cycle-controls {
  margin-top: 1rem;
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.button {
  display: inline-block;
  text-decoration: none;
  border: 1px solid transparent;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 0.55rem 0.9rem;
  border-radius: 0.5rem;
  cursor: pointer;
  font-size: 0.95rem;
}

.button:hover {
  filter: brightness(0.95);
}

.button-secondary {
  background: #ffffff;
  color: #0f172a;
  border-color: var(--border);
}

main {
  padding: 1.4rem 0 2rem;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

.muted {
  color: var(--muted);
}

.gallery-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1rem;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

.project-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.project-card p {
  margin: 0 0 0.8rem;
}

.project-card a {
  color: var(--accent);
  font-weight: 600;
}

.cycle-layout {
  display: grid;
  gap: 0.8rem;
}

.cycle-status {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.6rem 0.8rem;
}

.cycle-frame-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  overflow: hidden;
}

#cycle-frame {
  width: 100%;
  min-height: 75vh;
  border: 0;
  background: #ffffff;
}

.error-box {
  margin-top: 0.8rem;
  background: #fee2e2;
  color: #7f1d1d;
  border: 1px solid #fecaca;
  border-radius: 0.5rem;
  padding: 0.7rem;
}

@media (max-width: 700px) {
  #cycle-frame {
    min-height: 65vh;
  }
}