:root {
  --sand-base: #f3e9d8;
  --sand-light: #fbf8f3;
  --driftwood: #e5dbcb;
  --ocean-blue: #0e6e8c;
  --ocean-dark: #09475b;
  --ocean-light: #e3f1f5;
  --charcoal: #262626;
  --charcoal-muted: #595959;
  --badge-coral: #d95338;
  --shadow-solid: 4px 4px 0 #1c262b;
  --shadow-soft: 0 14px 28px rgba(38, 38, 38, 0.08);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, Consolas, "Liberation Mono", Menlo, monospace;
}

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

body {
  background-color: var(--sand-base);
  color: var(--charcoal);
  font-family: var(--font-sans);
  line-height: 1.6;
  border: 12px solid var(--driftwood);
  min-height: 100vh;
}

.core-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Floating Navigation Capsule */
.nav-wrapper {
  position: sticky;
  top: 16px;
  z-index: 1000;
  padding: 0 20px;
  margin-bottom: 30px;
}

.nav-capsule {
  max-width: 1100px;
  margin: 0 auto;
  background: var(--sand-light);
  border: 2px solid var(--charcoal);
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 24px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.06);
}

.brand-badge {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--ocean-blue);
  text-decoration: none;
  font-size: 1.05rem;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 18px;
  list-style: none;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--charcoal);
  font-size: 0.92rem;
  font-weight: 600;
  transition: color 0.15s ease;
}

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

.btn-nav {
  background: var(--ocean-blue);
  color: #fff !important;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--charcoal);
  box-shadow: 2px 2px 0 var(--charcoal);
  font-size: 0.85rem !important;
}

/* Button & Badge Elements */
.btn-action {
  display: inline-block;
  background: var(--ocean-blue);
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 26px;
  border: 2px solid var(--charcoal);
  box-shadow: var(--shadow-solid);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: transform 0.08s ease, box-shadow 0.08s ease;
}

.btn-action:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--charcoal);
}

.btn-action:active {
  transform: translate(4px, 4px);
  box-shadow: 0 0 0 var(--charcoal);
}

.btn-secondary {
  background: var(--sand-light);
  color: var(--charcoal);
}

.stat-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--badge-coral);
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 0.85rem;
  border: 2px solid var(--charcoal);
  box-shadow: 2px 2px 0 var(--charcoal);
}

/* Hero Section */
.hero-band {
  padding: 40px 0 60px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.hero-title-lockup h1 {
  font-size: 2.75rem;
  line-height: 1.15;
  color: var(--charcoal);
  margin-bottom: 20px;
}

.hero-title-lockup p {
  font-size: 1.1rem;
  color: var(--charcoal-muted);
  margin-bottom: 28px;
}

.hero-cluster {
  position: relative;
  min-height: 380px;
}

.hero-img-base {
  width: 72%;
  height: 250px;
  object-fit: cover;
  border: 3px solid var(--charcoal);
  box-shadow: var(--shadow-solid);
  position: absolute;
  top: 0;
  left: 0;
}

.hero-img-mid {
  width: 60%;
  height: 200px;
  object-fit: cover;
  border: 3px solid var(--charcoal);
  box-shadow: var(--shadow-solid);
  position: absolute;
  top: 90px;
  right: 0;
  z-index: 2;
}

.hero-img-front {
  width: 48%;
  height: 170px;
  object-fit: cover;
  border: 3px solid var(--charcoal);
  box-shadow: var(--shadow-solid);
  position: absolute;
  bottom: -20px;
  left: 50px;
  z-index: 3;
}

/* Alternating Layout Bands */
.band-sand {
  background-color: var(--sand-base);
  padding: 64px 0;
}

.band-driftwood {
  background-color: var(--driftwood);
  padding: 64px 0;
  border-top: 1px solid rgba(0,0,0,0.06);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.section-head {
  margin-bottom: 36px;
}

.section-mono {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ocean-blue);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 700;
  display: block;
  margin-bottom: 6px;
}

.section-head h2 {
  font-size: 2rem;
  color: var(--charcoal);
}

/* Feature Cards & Grid */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--sand-light);
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border: 1px solid rgba(38,38,38,0.1);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-soft);
}

.card-image-wrap {
  position: relative;
  margin-bottom: 18px;
}

.card-image-wrap img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  border: 2px solid var(--charcoal);
}

.card-badge-pos {
  position: absolute;
  top: -12px;
  right: -12px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.stat-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-top: 16px;
}

.stat-table td {
  padding: 8px 6px;
  border-bottom: 1px dashed rgba(38,38,38,0.2);
}

.stat-table td:last-child {
  text-align: right;
  font-weight: 700;
  color: var(--ocean-dark);
}

/* Course Appropriateness Checker */
.checker-tool {
  background: #ffffff;
  border: 2px solid var(--charcoal);
  box-shadow: var(--shadow-solid);
  padding: 32px;
  margin-top: 24px;
}

.checker-form {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 16px;
  align-items: end;
}

.checker-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.checker-field input,
.checker-field select {
  width: 100%;
  padding: 10px 12px;
  font-family: var(--font-sans);
  border: 2px solid var(--charcoal);
  background: var(--sand-light);
  font-size: 0.95rem;
}

.checker-results {
  margin-top: 24px;
  padding: 18px;
  background: var(--ocean-light);
  border-left: 5px solid var(--ocean-blue);
  display: none;
}

.checker-results.active {
  display: block;
}

.checker-results h4 {
  font-size: 1rem;
  margin-bottom: 6px;
  color: var(--ocean-dark);
}

/* Footer Architecture */
.footer-boundary {
  background-color: #1e262a;
  color: #cfd8dc;
  padding: 60px 0 30px;
  border-top: 4px solid var(--ocean-blue);
  font-size: 0.88rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1.1fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

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

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

.footer-col a {
  color: #cfd8dc;
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-col a:hover {
  color: #ffffff;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  flex-wrap: wrap;
  gap: 12px;
}

/* Responsive Rules */
@media (max-width: 992px) {
  .hero-grid,
  .grid-2,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }
  .hero-cluster {
    min-height: 320px;
    margin-top: 20px;
  }
  .checker-form {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  body {
    border-width: 6px;
  }
  .nav-capsule {
    flex-direction: column;
    gap: 12px;
    padding: 14px 18px;
  }
  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .checker-form {
    grid-template-columns: 1fr;
  }
  .hero-title-lockup h1 {
    font-size: 2.1rem;
  }
}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}