/* === עיצוב מקצועי - מתמטיקה בדידה 1 === */

/* צבעים */
:root {
  --pastel-purple: #b39ddb;
  --pastel-blue: #90caf9;
  --pastel-mint: #a5d6a7;
  --pastel-lavender: #ce93d8;
  --pastel-peach: #ffab91;
  --pastel-yellow: #fff59d;
  --text-muted: #a6adc8;
  --card-bg: rgba(255, 255, 255, 0.05);
  --card-border: rgba(255, 255, 255, 0.1);
}

/* === כותרת עליונה (Header) === */

.md-header__button.md-logo {
  padding: 0.1rem !important;
}
.md-header__title::after {
  content: " · by Orin Levi";
  font-size: 0.7em;
  font-weight: 400;
  color: var(--text-muted);
  margin-inline-start: 8px;
}

/* === כרטיסיות צבעוניות === */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.card {
  padding: 20px;
  border-radius: 12px;
  border: 2px solid;
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.card h3 {
  margin-top: 0 !important;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-purple {
  background: linear-gradient(135deg, rgba(179, 157, 219, 0.15), rgba(179, 157, 219, 0.05));
  border-color: var(--pastel-purple);
}

.card-blue {
  background: linear-gradient(135deg, rgba(144, 202, 249, 0.15), rgba(144, 202, 249, 0.05));
  border-color: var(--pastel-blue);
}

.card-mint {
  background: linear-gradient(135deg, rgba(165, 214, 167, 0.15), rgba(165, 214, 167, 0.05));
  border-color: var(--pastel-mint);
}

.card-lavender {
  background: linear-gradient(135deg, rgba(206, 147, 216, 0.15), rgba(206, 147, 216, 0.05));
  border-color: var(--pastel-lavender);
}

.card-peach {
  background: linear-gradient(135deg, rgba(255, 171, 145, 0.15), rgba(255, 171, 145, 0.05));
  border-color: var(--pastel-peach);
}

/* === Hero Banner === */

.hero-banner {
  text-align: center;
  padding: 40px 20px;
  margin-bottom: 32px;
  border-radius: 16px;
  background: linear-gradient(135deg,
    rgba(179, 157, 219, 0.1),
    rgba(144, 202, 249, 0.1),
    rgba(206, 147, 216, 0.1));
  border: 1px solid var(--card-border);
}

.hero-banner h1 {
  border-bottom: none !important;
  margin-bottom: 16px !important;
}

.hero-subtitle {
  color: var(--text-muted);
  font-size: 1.1em;
}

.hero-author {
  margin-top: 12px;
  font-size: 0.9em;
  color: var(--pastel-purple);
}

/* === Stats === */

.stats-row {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin: 24px 0;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2em;
  font-weight: bold;
  color: var(--pastel-blue);
}

.stat-label {
  font-size: 0.85em;
  color: var(--text-muted);
}

/* === שיפורים כלליים === */

.md-typeset table:not([class]) {
  border-radius: 8px;
  overflow: hidden;
}

.md-typeset table:not([class]) th {
  background: rgba(179, 157, 219, 0.1);
}

.md-typeset a:hover {
  color: var(--pastel-purple) !important;
}

.md-nav__link:hover {
  color: var(--pastel-blue) !important;
}

/* === Quick Links === */

.quick-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin: 20px 0;
}

.quick-link {
  padding: 8px 16px;
  border-radius: 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  transition: all 0.2s;
}

.quick-link:hover {
  background: rgba(179, 157, 219, 0.2);
  border-color: var(--pastel-purple);
}

/* === Download Button === */

.download-btn {
  display: inline-block;
  padding: 12px 24px;
  background: linear-gradient(135deg, var(--pastel-purple), var(--pastel-lavender));
  color: #1e1e2e !important;
  border-radius: 25px;
  text-decoration: none !important;
  font-weight: bold;
  transition: transform 0.2s, box-shadow 0.2s;
}

.download-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 15px rgba(179, 157, 219, 0.4);
}

/* === Definition/Example/Warning Boxes === */

.definition-box {
  background: rgba(144, 202, 249, 0.1);
  border-right: 4px solid var(--pastel-blue);
  padding: 16px;
  margin: 16px 0;
  border-radius: 0 8px 8px 0;
}

.example-box {
  background: rgba(165, 214, 167, 0.1);
  border-right: 4px solid var(--pastel-mint);
  padding: 16px;
  margin: 16px 0;
  border-radius: 0 8px 8px 0;
}

.warning-box {
  background: rgba(255, 171, 145, 0.1);
  border-right: 4px solid var(--pastel-peach);
  padding: 16px;
  margin: 16px 0;
  border-radius: 0 8px 8px 0;
}

.formula-box {
  background: rgba(206, 147, 216, 0.1);
  border: 1px solid var(--pastel-lavender);
  padding: 16px;
  margin: 16px 0;
  border-radius: 8px;
  text-align: center;
}

/* === Truth Tables === */

.truth-table {
  margin: 16px auto;
  border-collapse: collapse;
}

.truth-table th {
  background: var(--pastel-purple) !important;
  color: #1e1e2e !important;
  padding: 8px 16px;
}

.truth-table td {
  padding: 8px 16px;
  text-align: center;
}

.truth-table tr:nth-child(even) {
  background: rgba(179, 157, 219, 0.1);
}