/* Austin's Data Academy - Academic Style Sheet */
:root {
  --ada-bg: #faf8f5;
  --ada-surface: #ffffff;
  --ada-navy: #142d4c;
  --ada-maroon: #7c2020;
  --ada-maroon-dark: #611818;
  --ada-text-main: #24292e;
  --ada-text-muted: #57606a;
  --ada-border: #dcd6cc;
  --ada-border-light: #ece7de;
  --ada-gold: #c8963e;
  --ada-font-serif: "Georgia", "Cambria", "Times New Roman", serif;
  --ada-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ada-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --ada-shadow-md: 0 4px 12px rgba(20, 45, 76, 0.08);
}

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

body {
  font-family: var(--ada-font-sans);
  background-color: var(--ada-bg);
  color: var(--ada-text-main);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 10px;
  background: var(--ada-maroon);
  color: #fff;
  padding: 8px 16px;
  z-index: 9999;
  text-decoration: none;
  font-weight: 600;
  border-radius: 4px;
}
.skip-link:focus {
  top: 10px;
}

:focus-visible {
  outline: 2px solid var(--ada-maroon);
  outline-offset: 3px;
}

/* Top Utility Bar */
.top-utility-bar {
  background-color: var(--ada-navy);
  color: #d1d9e0;
  font-size: 13px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.container {
  width: 92%;
  max-width: 1140px;
  margin: 0 auto;
}

.utility-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.utility-info span {
  margin-right: 18px;
}

.utility-info a {
  color: #d1d9e0;
  text-decoration: none;
}
.utility-info a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.utility-tagline {
  font-style: italic;
  font-family: var(--ada-font-serif);
  color: #f0e6d2;
}

/* Header */
.academic-header {
  background-color: var(--ada-surface);
  border-bottom: 2px solid var(--ada-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--ada-navy);
}

.brand-emblem {
  width: 44px;
  height: 44px;
  background: var(--ada-maroon);
  color: #ffffff;
  font-family: var(--ada-font-serif);
  font-weight: bold;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  border: 2px solid var(--ada-gold);
}

.brand-title-wrap h1, .brand-title-wrap .brand-heading {
  font-family: var(--ada-font-serif);
  font-size: 20px;
  line-height: 1.2;
  color: var(--ada-navy);
  font-weight: 700;
}

.brand-sub {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--ada-text-muted);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--ada-border);
  padding: 8px 12px;
  cursor: pointer;
  font-size: 14px;
  border-radius: 4px;
  color: var(--ada-navy);
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 20px;
  align-items: center;
}

.main-nav a {
  text-decoration: none;
  color: var(--ada-text-main);
  font-weight: 500;
  font-size: 14px;
  padding: 6px 4px;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.main-nav a:hover, .main-nav a.active {
  color: var(--ada-maroon);
  border-bottom-color: var(--ada-maroon);
}

.btn-header {
  background-color: var(--ada-maroon);
  color: #ffffff !important;
  padding: 8px 16px !important;
  border-radius: 4px;
  border: none !important;
  font-weight: 600 !important;
}
.btn-header:hover {
  background-color: var(--ada-maroon-dark);
}

/* Page Banner */
.page-banner {
  background: linear-gradient(to right, #142d4c, #1f3f66);
  color: #ffffff;
  padding: 48px 0;
  border-bottom: 3px solid var(--ada-gold);
}

.page-banner h1 {
  font-family: var(--ada-font-serif);
  font-size: 34px;
  margin-bottom: 12px;
  font-weight: 700;
}

.page-banner p {
  font-size: 17px;
  max-width: 750px;
  color: #dbe4ee;
}

/* Hero Section (Home) */
.academic-hero {
  background: #ffffff;
  border-bottom: 1px solid var(--ada-border);
  padding: 60px 0 50px;
}

.hero-layout {
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  background: #f4eae7;
  color: var(--ada-maroon);
  border: 1px solid #e2cec7;
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border-radius: 20px;
  margin-bottom: 18px;
}

.hero-title {
  font-family: var(--ada-font-serif);
  font-size: 40px;
  line-height: 1.25;
  color: var(--ada-navy);
  margin-bottom: 20px;
  font-weight: 700;
}

.hero-lead {
  font-size: 18px;
  color: var(--ada-text-muted);
  margin-bottom: 30px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.btn-primary {
  background-color: var(--ada-maroon);
  color: #ffffff;
  border: 1px solid var(--ada-maroon);
}
.btn-primary:hover {
  background-color: var(--ada-maroon-dark);
}

.btn-outline {
  background-color: transparent;
  color: var(--ada-navy);
  border: 1px solid var(--ada-navy);
}
.btn-outline:hover {
  background-color: #f0f4f8;
}

/* Featured Syllabus Card */
.syllabus-overview-card {
  margin-top: 40px;
  background: var(--ada-bg);
  border: 1px solid var(--ada-border);
  border-radius: 6px;
  padding: 24px;
  box-shadow: var(--ada-shadow-sm);
  text-align: left;
}

.syllabus-header-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--ada-border);
  padding-bottom: 12px;
  margin-bottom: 18px;
  font-family: var(--ada-font-serif);
  font-size: 17px;
  color: var(--ada-navy);
  font-weight: 700;
}

.syllabus-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.syllabus-col {
  background: #ffffff;
  padding: 16px;
  border: 1px solid var(--ada-border-light);
  border-left: 3px solid var(--ada-maroon);
}

.syllabus-col h3 {
  font-size: 15px;
  color: var(--ada-navy);
  margin-bottom: 8px;
  font-family: var(--ada-font-serif);
}

.syllabus-col p {
  font-size: 13px;
  color: var(--ada-text-muted);
  line-height: 1.5;
}

/* Sections */
.section {
  padding: 60px 0;
}

.section-bg-alt {
  background-color: #ffffff;
  border-top: 1px solid var(--ada-border-light);
  border-bottom: 1px solid var(--ada-border-light);
}

.section-heading-wrap {
  text-align: center;
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-kicker {
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 1px;
  font-weight: 700;
  color: var(--ada-maroon);
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--ada-font-serif);
  font-size: 28px;
  color: var(--ada-navy);
  margin-bottom: 12px;
}

.section-desc {
  color: var(--ada-text-muted);
  font-size: 15px;
}

/* Academic Syllabus Table */
.curriculum-table-wrap {
  overflow-x: auto;
  background: #ffffff;
  border: 1px solid var(--ada-border);
  border-radius: 4px;
}

.curriculum-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}

.curriculum-table th, .curriculum-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--ada-border-light);
  vertical-align: top;
}

.curriculum-table th {
  background-color: #f1ede5;
  color: var(--ada-navy);
  font-family: var(--ada-font-serif);
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.curriculum-table tr:hover td {
  background-color: #fcfbf9;
}

.tag-badge {
  display: inline-block;
  padding: 2px 8px;
  background: #eef2f6;
  color: var(--ada-navy);
  font-size: 11px;
  border-radius: 3px;
  font-weight: 600;
}

/* Two Column Editorial */
.two-col-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.academic-card {
  background: #ffffff;
  border: 1px solid var(--ada-border);
  padding: 28px;
  border-radius: 4px;
}

.academic-card h2, .academic-card h3 {
  font-family: var(--ada-font-serif);
  color: var(--ada-navy);
  margin-bottom: 12px;
}

.academic-card ul {
  padding-left: 20px;
  margin-top: 12px;
}

.academic-card li {
  margin-bottom: 8px;
  color: var(--ada-text-main);
  font-size: 14px;
}

/* Notice box */
.advisory-box {
  background-color: #fff9e6;
  border-left: 4px solid #c8963e;
  padding: 16px 20px;
  margin: 24px 0;
  font-size: 14px;
  color: #5d491c;
}

.advisory-box strong {
  display: block;
  margin-bottom: 4px;
}

/* Contact & Form */
.form-card {
  background: #ffffff;
  border: 1px solid var(--ada-border);
  padding: 30px;
  border-radius: 4px;
  box-shadow: var(--ada-shadow-sm);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 6px;
  color: var(--ada-navy);
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--ada-border);
  border-radius: 4px;
  font-size: 14px;
  font-family: inherit;
  background-color: #fdfdfd;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--ada-maroon);
  background: #ffffff;
}

.form-hint {
  font-size: 12px;
  color: var(--ada-text-muted);
  margin-top: 4px;
}

.form-status {
  display: none;
  padding: 12px;
  margin-top: 16px;
  border-radius: 4px;
  font-size: 14px;
}
.form-status.success {
  display: block;
  background-color: #e6f4ea;
  color: #137333;
  border: 1px solid #ceead6;
}

/* Institutional Footer */
.academic-footer {
  background-color: var(--ada-navy);
  color: #c4d1de;
  padding: 50px 0 20px;
  font-size: 14px;
  border-top: 4px solid var(--ada-maroon);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 30px;
  margin-bottom: 40px;
}

.footer-col h3, .footer-col .footer-title {
  font-family: var(--ada-font-serif);
  color: #ffffff;
  font-size: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  padding-bottom: 8px;
}

.footer-col p {
  line-height: 1.6;
  margin-bottom: 12px;
  font-size: 13px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 8px;
}

.footer-col a {
  color: #c4d1de;
  text-decoration: none;
  font-size: 13px;
}
.footer-col a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.footer-disclaimer {
  background: rgba(0, 0, 0, 0.2);
  padding: 16px 20px;
  border-radius: 4px;
  margin-bottom: 24px;
  font-size: 12px;
  line-height: 1.6;
  color: #b0c0d0;
}

.footer-disclaimer strong {
  color: #ffffff;
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  font-size: 12px;
  color: #8c9fae;
}

/* Responsive */
@media (max-width: 900px) {
  .syllabus-grid {
    grid-template-columns: 1fr;
  }
  .two-col-layout {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 650px) {
  .nav-toggle {
    display: block;
  }
  .main-nav {
    display: none;
    width: 100%;
    margin-top: 15px;
  }
  .main-nav.open {
    display: block;
  }
  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    background: #ffffff;
    padding: 14px;
    border: 1px solid var(--ada-border);
  }
  .header-container {
    flex-wrap: wrap;
  }
  .hero-title {
    font-size: 28px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}