/* SUSE typeface */
@import url('https://fonts.googleapis.com/css2?family=SUSE:wght@100..800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;700&display=swap');

/* SUSE brand palette */
:root {
  --suse-green: #30BA78;
  --suse-green-light: #4DCC90;
  --suse-green-dark: #1F8850;
  --suse-dark: #1C1C1C;
  --suse-dark-2: #252525;
  --suse-dark-3: #2E2E2E;
}

/* Dark mode (slate) custom colors */
[data-md-color-scheme="slate"] {
  --md-primary-fg-color: var(--suse-green);
  --md-primary-fg-color--light: var(--suse-green-light);
  --md-primary-fg-color--dark: var(--suse-green-dark);
  --md-accent-fg-color: var(--suse-green);
  --md-default-bg-color: #1a1a1a;
  --md-default-bg-color--light: #222222;
  --md-code-bg-color: #0d1117;
}

/* Light mode custom colors */
[data-md-color-scheme="default"] {
  --md-primary-fg-color: var(--suse-green-dark);
  --md-primary-fg-color--light: var(--suse-green);
  --md-primary-fg-color--dark: #1a6e3c;
  --md-accent-fg-color: var(--suse-green-dark);
}

/* Header */
.md-header {
  background-color: var(--suse-dark) !important;
}

.md-tabs {
  background-color: var(--suse-dark-2) !important;
}

/* Hero section on landing page */
.hero {
  padding: 3rem 1rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, #1a1a1a 0%, #1e3a2a 100%);
  border-radius: 0.5rem;
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: 2.4rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.hero .subtitle {
  font-size: 1.1rem;
  color: var(--suse-green);
  margin-bottom: 0.4rem;
  font-weight: 500;
}

.hero .tagline {
  font-size: 0.95rem;
  color: #aaaaaa;
  margin-bottom: 1.6rem;
}

/* Scenario block */
.scenario {
  background: var(--suse-dark-3);
  border-left: 4px solid var(--suse-green);
  padding: 1.2rem 1.4rem;
  border-radius: 0 0.4rem 0.4rem 0;
  margin: 1.5rem 0;
}

/* Topology pre block */
.topology pre {
  background: #0d1117;
  border: 1px solid #30303a;
  border-radius: 0.4rem;
  padding: 1.2rem 1.4rem;
  font-size: 0.82rem;
  line-height: 1.6;
  color: #e6edf3;
  overflow-x: auto;
}

/* Exercise cards grid */
.exercise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.exercise-card {
  background: var(--suse-dark-2);
  border: 1px solid #333;
  border-radius: 0.5rem;
  padding: 1.2rem 1.4rem;
  text-decoration: none !important;
  transition: border-color 0.2s, transform 0.2s;
  display: block;
}

.exercise-card:hover {
  border-color: var(--suse-green);
  transform: translateY(-2px);
}

.exercise-card .ex-number {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--suse-green);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.3rem;
}

.exercise-card .ex-title {
  font-size: 1rem;
  font-weight: 600;
  color: #e6edf3;
  margin-bottom: 0.4rem;
}

.exercise-card .ex-time {
  font-size: 0.8rem;
  color: #888;
}

.exercise-card .ex-desc {
  font-size: 0.85rem;
  color: #aaaaaa;
  margin-top: 0.5rem;
  line-height: 1.5;
}

/* Path badges */
.path-badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 2rem;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
}

.path-badge.elemental {
  background: rgba(48, 186, 120, 0.15);
  color: var(--suse-green);
  border: 1px solid rgba(48, 186, 120, 0.3);
}

.path-badge.eib {
  background: rgba(100, 149, 237, 0.12);
  color: #6495ed;
  border: 1px solid rgba(100, 149, 237, 0.3);
}

/* Utility links row */
.link-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 1.5rem 0;
}

.link-row a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid #444;
  border-radius: 0.3rem;
  font-size: 0.85rem;
  color: #ccc;
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
}

.link-row a:hover {
  border-color: var(--suse-green);
  color: var(--suse-green);
}

/* Code block enhancements */
.md-typeset code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82em;
}

/* Prev/next nav at bottom of exercises */
.ex-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid #333;
  gap: 1rem;
}

.ex-nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border: 1px solid #444;
  border-radius: 0.3rem;
  font-size: 0.85rem;
  color: #ccc;
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
}

.ex-nav a:hover {
  border-color: var(--suse-green);
  color: var(--suse-green);
}