/* AlgoGators QR Training — Shared Stylesheet */

:root {
  --bg-primary: #ffffff;
  --bg-surface: #f8f8f8;
  --bg-elevated: #f0f0f0;
  --accent: #FF7D2A;
  --accent-muted: #FF6B1A;
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --text-tertiary: #999999;
  --border: #e0e0e0;
  --border-hover: #d0d0d0;
  --success: #2a9d5c;
  --danger: #c0392b;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 15px;
  line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 600;
  margin-bottom: 1.5rem;
  margin-top: 2rem;
  line-height: 1.3;
}

h1 {
  font-size: 2.75rem;
  border-bottom: 3px solid var(--accent);
  padding-bottom: 0.5rem;
  display: inline-block;
}

h2 {
  font-size: 1.75rem;
  color: var(--text-primary);
}

h3 {
  font-size: 1.3rem;
  color: var(--text-primary);
}

h4, h5, h6 {
  font-size: 1rem;
  color: var(--text-primary);
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-muted);
}

/* Navigation */
nav {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  font-family: 'IBM Plex Sans', sans-serif;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
  min-height: 80px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1rem;
}

.nav-logo-img {
  height: 32px;
  width: auto;
  flex-shrink: 0;
}

.nav-name {
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.nav-divider {
  color: var(--border);
  margin: 0 0.8rem;
}

.nav-section {
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.85rem;
  flex-wrap: nowrap;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

/* Main container */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.page-header {
  margin-bottom: 3rem;
}

.page-header h1 {
  font-size: 3.3rem;
  border: none;
  margin-bottom: 1rem;
  margin-top: 0;
  display: block;
}

.page-week {
  font-family: 'IBM Plex Sans', sans-serif;
  color: var(--accent);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.page-phase {
  font-family: 'IBM Plex Sans', sans-serif;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.page-objective {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-style: italic;
}

/* IP Anchor */
.ip-anchor {
  background: linear-gradient(135deg, #fff5ed 0%, #fffaf7 100%);
  border: 1px solid #ffd9c0;
  border-left: 4px solid var(--accent);
  padding: 1.5rem;
  margin: 2rem 0;
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.ip-anchor-label {
  font-family: 'IBM Plex Sans', sans-serif;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.ip-anchor-section {
  font-family: 'IBM Plex Sans', sans-serif;
  color: var(--text-primary);
  font-size: 1.15rem;
  font-weight: 700;
}

.ip-anchor-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Content sections */
.section {
  margin: 3.5rem 0;
}

.section-title {
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--accent);
  padding-left: 1rem;
  font-size: 1.4rem;
}

/* Cards and callouts */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2rem;
  margin: 2rem 0;
  transition: all 0.2s;
}

.card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.callout {
  background-color: #fff5ed;
  border-left: 4px solid var(--accent);
  padding: 1.5rem;
  margin: 1.5rem 0;
  border-radius: 6px;
}

.callout-title {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

/* Code blocks */
pre {
  background-color: #1a1a1a;
  border: 1px solid #333;
  border-radius: 6px;
  padding: 1.5rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-size: 0.9rem;
  color: #e0e0e0;
  font-family: 'IBM Plex Mono', monospace;
}

code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.9em;
}

pre code {
  color: #e0e0e0;
  font-size: inherit;
  background: none;
  padding: 0;
  border-radius: 0;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

thead {
  background-color: #f0f0f0;
  border-bottom: 1px solid var(--border);
}

th {
  padding: 1.2rem 1rem;
  text-align: left;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 0.95rem;
}

td {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

tbody tr:hover {
  background-color: #fafafa;
}

/* Lists */
ul, ol {
  margin: 1.5rem 0 1.5rem 2rem;
}

li {
  margin-bottom: 0.5rem;
}

/* Hero section (index only) */
.hero {
  text-align: center;
  padding: 4rem 2rem;
  margin-bottom: 3rem;
}

.hero-logo {
  max-width: 320px;
  height: auto;
  margin: 2rem auto 2rem auto;
  display: block;
}

.hero h1 {
  font-size: 3.3rem;
  border: none;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.hero-meta {
  color: var(--text-tertiary);
  font-size: 0.95rem;
}

/* Grid layouts */
.grid {
  display: grid;
  gap: 2rem;
  margin: 2rem 0;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Phase cards */
.phase-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.phase-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.phase-card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.phase-number {
  font-family: 'IBM Plex Sans', sans-serif;
  color: var(--accent);
  font-size: 0.8rem;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 0.8rem;
}

.phase-title {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 1.35rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.phase-week {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

/* Week cards */
.week-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  color: inherit;
  display: block;
  position: relative;
  overflow: hidden;
}

.week-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.week-card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 8px 20px rgba(0,0,0,0.07);
  transform: translateY(-2px);
}

.week-card:hover::before {
  transform: scaleX(1);
}

.week-number {
  font-family: 'IBM Plex Sans', sans-serif;
  color: var(--accent);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  display: block;
}

.week-title {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 1rem;
  font-weight: 600;
}

.week-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  background-color: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 0.3rem 0.6rem;
  border-radius: 2px;
  border: 1px solid var(--border);
}

/* Outcomes section */
.outcomes-list {
  display: grid;
  gap: 1rem;
  margin: 2rem 0;
}

.outcome-item {
  background-color: var(--bg-surface);
  border-left: 3px solid var(--success);
  padding: 1.5rem;
  border-radius: 4px;
}

.outcome-item::before {
  content: '✓';
  color: var(--success);
  font-weight: 700;
  margin-right: 0.8rem;
}

/* Comparison table */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-surface);
  border-radius: 4px;
  overflow: hidden;
  margin: 2rem 0;
}

.comparison-table th {
  background-color: var(--bg-elevated);
  border: none;
  padding: 1rem;
}

.comparison-table td {
  border: 1px solid var(--border);
  padding: 1rem;
}

/* Charts container */
.chart-container {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2rem;
  margin: 2rem 0;
  position: relative;
  height: 400px;
}

/* Common mistakes section */
.mistakes-list {
  background-color: var(--bg-elevated);
  border-left: 4px solid var(--danger);
  padding: 2rem;
  margin: 2rem 0;
  border-radius: 4px;
}

.mistakes-list h4 {
  color: var(--danger);
  margin-top: 0;
  margin-bottom: 1rem;
}

.mistakes-list ul {
  margin-left: 1.5rem;
}

.mistakes-list li {
  color: var(--text-secondary);
}

/* Navigation between weeks */
.week-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.week-nav-button {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s;
}

.week-nav-button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.week-nav-disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.week-nav-disabled:hover {
  border-color: var(--border);
  color: var(--text-secondary);
}

/* Footer */
footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 2.5rem 2rem;
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.85rem;
  margin-top: 4rem;
}

/* MathJax styling */
.mjx-container {
  text-align: center;
  margin: 1.5rem 0;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 2rem 1rem;
  }

  h1 {
    font-size: 1.98rem;
  }

  h2 {
    font-size: 1.4rem;
  }

  nav {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
  }

  .grid-2, .grid-4 {
    grid-template-columns: 1fr;
  }

  .week-nav {
    flex-direction: column;
    gap: 1rem;
  }

  .week-nav-button {
    width: 100%;
    text-align: center;
  }
}

/* Print styles */
@media print {
  nav, footer, .week-nav {
    display: none;
  }

  body {
    background-color: white;
    color: black;
  }
}