/* Mohammed Alnemari's Course Style - Based on Linear Algebra Slides */

:root {
  --royal-blue: #0052D4;
  --coral-orange: #FF5733;
  --teal-cyan: #00D9A3;
  --light-gray: #F5F5F5;
  --dark-text: #1A1A1A;
  --white: #FFFFFF;
  --dark-sidebar: #2C3E50;
}

/* Global Styles */
html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--dark-text);
  line-height: 1.6;
}

/* Navigation/Header */
.wy-side-nav-search {
  background: var(--royal-blue) !important;
  border-bottom: 5px solid var(--coral-orange);
}

.wy-side-nav-search a {
  color: var(--white) !important;
  font-weight: 700;
  font-size: 1.4em;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.wy-side-nav-search > div.version {
  color: var(--teal-cyan);
}

/* Navigation Menu */
.wy-nav-side {
  background: var(--dark-sidebar) !important;
}

.wy-menu-vertical a {
  color: #8BA4B8 !important;
  font-weight: 500;
  transition: all 0.3s ease;
}

.wy-menu-vertical a:hover {
  background-color: rgba(0, 217, 163, 0.1) !important;
  color: var(--white) !important;
  padding-left: 8px;
}

.wy-menu-vertical li.current > a {
  background: linear-gradient(90deg, var(--royal-blue) 0%, rgba(0, 82, 212, 0.8) 100%) !important;
  color: var(--teal-cyan) !important;
  border-right: 5px solid var(--coral-orange);
  font-weight: 700;
  text-shadow: 0 0 20px rgba(0, 217, 163, 0.5);
}

.wy-menu-vertical li.current a {
  border: none;
}

.wy-menu-vertical li.toctree-l1.current > a {
  background: linear-gradient(90deg, var(--royal-blue) 0%, rgba(0, 61, 107, 0.8) 100%) !important;
  color: var(--teal-cyan) !important;
  font-weight: 700;
}

.wy-menu-vertical .toctree-l1.current a {
  color: var(--teal-cyan) !important;
  font-weight: 700;
}

/* Sub-menu items (Level 2 - Weeks) */
.wy-menu-vertical .toctree-l2 > a {
  color: #A3BFCF !important;
  font-weight: 600;
  padding-left: 1.5em;
  font-size: 0.98em;
}

.wy-menu-vertical .toctree-l2 > a:hover {
  color: var(--white) !important;
  background-color: rgba(0, 217, 163, 0.2) !important;
  padding-left: 1.8em;
}

/* Sub-menu items (Level 3 - Individual Lectures) */
.wy-menu-vertical .toctree-l3 > a {
  color: #7A98AC !important;
  font-weight: 400;
  padding-left: 2.5em;
  font-size: 0.92em;
}

.wy-menu-vertical .toctree-l3 > a:hover {
  color: var(--white) !important;
  background-color: rgba(0, 217, 163, 0.15) !important;
  padding-left: 2.8em;
}

/* Current/active nested items */
.wy-menu-vertical .toctree-l2.current > a {
  color: var(--teal-cyan) !important;
  font-weight: 700;
  background-color: rgba(0, 217, 163, 0.15) !important;
}

.wy-menu-vertical .toctree-l3.current > a {
  color: #4DFFC8 !important;
  font-weight: 600;
  background-color: rgba(0, 217, 163, 0.1) !important;
}

/* Main Content Area */
.wy-nav-content {
  max-width: 1200px;
  background: var(--white);
}

/* Hero Section - Title Page Style */
.hero-section {
  background: var(--royal-blue);
  color: var(--white);
  padding: 4em 3em;
  margin: -2em -2em 2em -2em;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 10px;
  height: 100%;
  background: var(--coral-orange);
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 200px;
  height: 10px;
  background: var(--coral-orange);
}

.hero-section h1 {
  color: var(--coral-orange) !important;
  font-size: 3.5em !important;
  font-weight: 900 !important;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin: 0 0 0.3em 0 !important;
  line-height: 1.1;
}

.hero-section p {
  color: var(--white);
  font-size: 1.3em;
  margin: 0;
  font-weight: 300;
}

.hero-section strong {
  color: var(--white);
  font-weight: 600;
}

/* Section Headers with Yellow Accent */
h1 {
  color: var(--royal-blue) !important;
  font-weight: 700 !important;
  text-transform: uppercase;
  border-bottom: 5px solid var(--coral-orange);
  padding-bottom: 0.5em;
  margin-top: 2em !important;
}

h2 {
  color: var(--royal-blue) !important;
  font-weight: 700 !important;
  border-left: 5px solid var(--coral-orange);
  padding-left: 15px;
  margin-top: 2em;
}

h3 {
  color: var(--royal-blue) !important;
  font-weight: 600 !important;
}

/* Info Cards - Slide Style */
.info-card {
  background: var(--light-gray);
  border-left: 5px solid var(--royal-blue);
  padding: 2em;
  margin: 2em 0;
  border-radius: 0;
}

.info-card h3 {
  color: var(--royal-blue);
  margin-top: 0;
  text-transform: uppercase;
  font-size: 1.1em;
  letter-spacing: 1px;
}

/* Instructor Info Box */
.instructor-info {
  background: var(--royal-blue);
  color: var(--white);
  padding: 2em;
  margin: 2em 0;
  border-left: 8px solid var(--coral-orange);
}

.instructor-info h2 {
  color: var(--coral-orange) !important;
  border-left: none;
  padding-left: 0;
}

.instructor-info strong {
  color: var(--coral-orange);
}

.instructor-info p {
  color: var(--white);
}

/* Contact Box - Yellow Highlight */
.contact-box {
  background: var(--royal-blue);
  color: var(--white);
  padding: 1.5em;
  margin: 1em 0;
  border-left: 6px solid var(--coral-orange);
}

.contact-box strong {
  color: var(--coral-orange);
}

/* Tables - Professional Style */
table {
  border-collapse: collapse;
  width: 100%;
  margin: 2em 0;
  box-shadow: 0 4px 12px rgba(0, 61, 107, 0.15);
  border-radius: 8px;
  overflow: hidden;
}

table thead {
  background: linear-gradient(135deg, var(--royal-blue) 0%, #0066FF 100%);
  color: var(--white);
}

table thead th {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 18px 15px;
  border-bottom: 3px solid var(--coral-orange);
  font-size: 0.95em;
}

table tbody td {
  padding: 14px 15px;
  border-bottom: 1px solid #E0E0E0;
  transition: all 0.2s ease;
}

table tbody tr:hover {
  background-color: #FFE8E0 !important;
  transform: scale(1.01);
  box-shadow: 0 2px 8px rgba(255, 87, 51, 0.2);
}

table tbody tr:nth-child(even) {
  background-color: #F8F9FA;
}

table tbody tr:nth-child(odd) {
  background-color: var(--white);
}

table tbody td strong {
  color: var(--royal-blue);
  font-weight: 700;
}

/* Signature Footer */
.signature {
  background: var(--royal-blue);
  color: var(--white);
  padding: 2em;
  margin: 3em -2em -2em -2em;
  text-align: center;
  border-top: 5px solid var(--coral-orange);
}

.signature strong {
  color: var(--coral-orange);
  font-size: 1.2em;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.signature em {
  color: var(--coral-orange);
  font-style: normal;
}

/* Lists - Coral Orange Bullets */
ul li::marker {
  color: var(--coral-orange);
  font-weight: bold;
  font-size: 1.1em;
}

ul li {
  margin: 0.8em 0;
  padding-left: 0.5em;
}

/* Code Blocks */
code {
  background-color: #F8F8F8;
  padding: 3px 8px;
  border-radius: 3px;
  color: var(--royal-blue);
  font-family: 'Courier New', monospace;
  border: 1px solid #E0E0E0;
}

pre {
  background: linear-gradient(135deg, var(--royal-blue) 0%, #0066FF 100%);
  color: var(--white);
  padding: 1.5em;
  border-radius: 8px;
  border-left: 5px solid var(--coral-orange);
  overflow-x: auto;
  box-shadow: 0 4px 12px rgba(0, 82, 212, 0.2);
}

pre code {
  background: transparent;
  color: var(--white);
  border: none;
  padding: 0;
}

/* Emphasis */
strong {
  color: var(--royal-blue);
  font-weight: 700;
}

em {
  color: var(--royal-blue);
  font-style: italic;
}

/* Blockquotes */
blockquote {
  border-left: 5px solid var(--coral-orange);
  background: var(--light-gray);
  padding: 1em 1.5em;
  margin: 1.5em 0;
  font-style: italic;
}

/* Admonitions */
.admonition {
  padding: 1.5em;
  margin: 1.5em 0;
  border-left: 6px solid;
  border-radius: 0;
}

.admonition.note {
  border-color: var(--royal-blue);
  background-color: #E8F4F8;
}

.admonition.warning {
  border-color: var(--coral-orange);
  background-color: #FFF9E6;
}

.admonition-title {
  color: var(--royal-blue) !important;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.5em;
}

/* Buttons */
.btn, .button {
  background: var(--royal-blue);
  color: var(--white);
  padding: 12px 30px;
  border: none;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.3s ease;
}

.btn:hover, .button:hover {
  background: var(--coral-orange);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(255, 87, 51, 0.3);
}

/* Page Title Style */
.rst-content .document h1 {
  font-size: 2.5em;
  color: var(--royal-blue);
  text-transform: uppercase;
  font-weight: 900;
  border-bottom: 5px solid var(--coral-orange);
  padding-bottom: 0.3em;
  margin-bottom: 1em;
}

/* Footer */
.rst-footer-buttons {
  border-top: 3px solid var(--coral-orange);
  padding-top: 2em;
  margin-top: 3em;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .hero-section {
    padding: 2em 1.5em;
  }

  .hero-section h1 {
    font-size: 2em !important;
  }

  .hero-section p {
    font-size: 1em;
  }

  table {
    font-size: 0.9em;
  }
}

/* Numbered Lists */
ol {
  counter-reset: item;
  list-style: none;
}

ol li {
  counter-increment: item;
  padding-left: 2em;
  position: relative;
  margin: 1em 0;
}

ol li::before {
  content: counter(item);
  background: var(--coral-orange);
  color: var(--white);
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
  position: absolute;
  left: 0;
}

/* Announcements Box */
.announcement-box {
  background: linear-gradient(135deg, #FFE8E0 0%, #FFF5F0 100%);
  border-left: 8px solid var(--coral-orange);
  border-radius: 8px;
  padding: 2em;
  margin: 2em 0;
  box-shadow: 0 4px 12px rgba(255, 87, 51, 0.2);
}

.announcement-box h2, .announcement-box h3 {
  color: var(--royal-blue) !important;
  margin-top: 0;
  border-left: none;
  padding-left: 0;
}

.announcement-box strong {
  color: var(--white);
  background: var(--coral-orange);
  padding: 3px 10px;
  border-radius: 4px;
  font-weight: 700;
}

.announcement-box ul li::marker {
  color: var(--royal-blue);
}

/* Last Updated Footer */
.last-updated {
  background: var(--light-gray);
  border-top: 3px solid var(--coral-orange);
  padding: 1em 2em;
  margin: 3em -2em -2em -2em;
  text-align: right;
  font-size: 0.9em;
  color: #666;
  font-style: italic;
}

.last-updated strong {
  color: var(--royal-blue);
  font-style: normal;
}

/* Enhanced Link Styling with Better Colors */
a {
  color: var(--royal-blue);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
}

a:hover {
  color: #0066FF;
  border-bottom: 2px solid var(--coral-orange);
  background: linear-gradient(to top, rgba(255, 87, 51, 0.1) 0%, transparent 100%);
}

/* Enhanced Section Dividers */
hr {
  border: none;
  height: 4px;
  background: linear-gradient(to right, var(--royal-blue) 0%, var(--coral-orange) 50%, var(--royal-blue) 100%);
  margin: 3em 0;
  border-radius: 2px;
}

/* Print Styles */
@media print {
  .wy-nav-side,
  .wy-nav-top,
  .rst-footer-buttons {
    display: none !important;
  }

  .wy-nav-content {
    margin: 0;
    max-width: 100%;
  }

  .hero-section,
  .instructor-info,
  .signature,
  .announcement-box {
    background: white !important;
    color: black !important;
    border: 2px solid #333;
  }

  .hero-section h1 {
    color: black !important;
  }

  table {
    page-break-inside: avoid;
  }

  a {
    text-decoration: underline;
    color: black !important;
  }

  .last-updated {
    border-top: 2px solid #333;
    background: white;
  }
}

/* Enhanced Navigation Icons */
.wy-menu-vertical a::before {
  margin-right: 8px;
  font-weight: 400;
}

/* Subtle Animation for Cards */
.info-card, .announcement-box {
  transition: all 0.3s ease;
}

.info-card:hover, .announcement-box:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 61, 107, 0.15);
}