/* Shared site styles for 30DaysOfCDISC */
@import url('https://fonts.googleapis.com/css2?family=Ubuntu:wght@300;400;500;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  /* Light-mode palette (primary site defaults) */
  --bg-primary: #f7fafc;     /* page background */
  --bg-secondary: #eef2f6;   /* subtle hero background */
  --bg-card: #ffffff;        /* cards / panels */
  --text-primary: #0f172a;   /* main text */
  --text-secondary: #475569; /* secondary text */
  --text-muted: #64748b;     /* muted text */
  --border-color: #e2e8f0;   /* soft borders */
  --accent-1: #0284c7;
  --accent-2: #7c3aed;
  --accent-3: #16a34a;
  --accent-4: #ea580c;
  --shadow: 0 6px 18px rgba(15,23,42,0.06);
}

/* Force light variables regardless of Quarto's color-mode class */
.quarto-dark, .quarto-light {
  --bg-primary: var(--bg-primary);
  --bg-secondary: var(--bg-secondary);
  --bg-card: var(--bg-card);
  --text-primary: var(--text-primary);
  --text-secondary: var(--text-secondary);
  --text-muted: var(--text-muted);
  --border-color: var(--border-color);
  --accent-1: var(--accent-1);
  --accent-2: var(--accent-2);
  --accent-3: var(--accent-3);
  --accent-4: var(--accent-4);
  --shadow: var(--shadow);
}

/* Page-specific wrapper to zero out extra padding on index */
.index-page {
  margin: 0;
  padding: 0 !important;
}

body {
  font-family: 'Ubuntu', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Make the content area slightly elevated against the page background */
#quarto-content {
  background: transparent;
}

/* Gentle adjustment to hero for better contrast on light background */
.hero-section {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.week-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
}

.hero-section {
  text-align: center;
  padding: 20px 12px 16px; /* reduced padding for a tighter layout on index */
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-radius: 12px;
  margin-bottom: 18px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -60px; left: -60px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56,189,248,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -80px; right: -60px;
  width: 250px; height: 250px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(167,139,250,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

h1,h2,h3,h4,h5,h6 { font-family: 'Ubuntu', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif; font-weight: 600; color: var(--text-primary); }

.hero-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -0.5px;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  font-style: italic;
}

.week-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-auto-rows: auto;
  gap: 24px;
  margin: 0 auto 30px;
  max-width: 1100px;
  justify-items: stretch;
}

.week-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  min-width: 240px;
}

.week-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.week-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 12px;
}

.week-badge {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 1px;
  padding: 5px 12px;
  border-radius: 4px;
  font-weight: 600;
  color: #0f172a;
}

.week-badge.week-1 { background: var(--accent-1); }
.week-badge.week-2 { background: var(--accent-2); }
.week-badge.week-3 { background: var(--accent-3); }
.week-badge.week-4 { background: var(--accent-4); }

.week-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.week-theme {
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
}

.day-list {
  padding: 12px 16px;
}

.day-item {
  display: flex;
  align-items: center;
  padding: 12px 14px;
  margin: 6px 0;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text-primary);
  transition: background 0.15s, transform 0.15s;
  border: 1px solid transparent;
}

.day-item:hover {
  background: rgba(56,189,248,0.08);
  border-color: var(--border-color);
  transform: translateX(4px);
}

.day-item.completed { opacity: 1; }
.day-item.upcoming { opacity: 0.5; pointer-events: none; }

.day-number { font-family: 'IBM Plex Mono', monospace; font-size: 12px; font-weight: 600; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 12px; flex-shrink: 0; }
.day-number.week-1 { background: rgba(56,189,248,0.2); color: var(--accent-1); }
.day-number.week-2 { background: rgba(167,139,250,0.2); color: var(--accent-2); }
.day-number.week-3 { background: rgba(74,222,128,0.2); color: var(--accent-3); }
.day-number.week-4 { background: rgba(251,146,60,0.2); color: var(--accent-4); }

.day-info { flex: 1; }
.day-focus { font-size: 13px; font-weight: 600; color: var(--text-primary); margin-bottom: 2px; }
.day-topic { font-size: 11px; color: var(--text-muted); font-style: italic; }

.day-status { font-family: 'IBM Plex Mono', monospace; font-size: 9px; padding: 3px 8px; border-radius: 3px; margin-left: 10px; }
.day-status.done { background: rgba(74,222,128,0.2); color: var(--accent-3); }
.day-status.wip  { background: rgba(251,146,60,0.2); color: var(--accent-4); }

.footer-section { text-align: center; padding: 30px 20px; border-top: 1px solid var(--border-color); margin-top: 20px; }
.footer-text { font-size: 12px; color: var(--text-muted); font-style: italic; }

.resources-grid { display: flex; justify-content: center; gap: 16px; margin-top: 16px; flex-wrap: wrap; }
.resource-link { font-family: 'IBM Plex Mono', monospace; font-size: 10px; padding: 6px 14px; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 4px; color: var(--text-secondary); text-decoration: none; transition: all 0.2s; }
.resource-link:hover { border-color: var(--accent-1); color: var(--accent-1); }

@media (max-width: 900px) { .week-grid { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .hero-title { font-size: 22px; } .week-grid { grid-template-columns: 1fr; } }