/* ========================================
   Programming & Web Development - Styles
   School Colors:
   #D7D8DC – light cool gray
   #555759 – dark charcoal gray
   #1D75EC – primary blue
   #9EA2A3 – medium gray
   #8C8D90 – warm gray
   #92BCF4 – light blue
   ======================================== */

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --light-gray: #D7D8DC;
  --charcoal: #555759;
  --primary-blue: #1D75EC;
  --medium-gray: #9EA2A3;
  --warm-gray: #8C8D90;
  --light-blue: #92BCF4;
  --white: #ffffff;
  --off-white: #f4f5f7;
  --dark: #2a2b2d;
  --gradient-blue: linear-gradient(135deg, #1D75EC, #92BCF4);
  --gradient-hero: linear-gradient(135deg, #1D75EC 0%, #4a90e2 40%, #92BCF4 100%);
  --shadow-sm: 0 2px 8px rgba(29, 117, 236, 0.1);
  --shadow-md: 0 4px 20px rgba(29, 117, 236, 0.15);
  --shadow-lg: 0 8px 40px rgba(29, 117, 236, 0.2);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--charcoal);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(29, 117, 236, 0.1);
  transition: box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo {
  width: 44px;
  height: 44px;
  background: var(--gradient-blue);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 800;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.nav-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.3;
}

.nav-title span {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--primary-blue);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--charcoal);
  transition: all var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-blue);
  background: rgba(29, 117, 236, 0.08);
}

.nav-links a.active {
  background: var(--primary-blue);
  color: var(--white);
}

/* Mobile menu button */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2.5px;
  background: var(--charcoal);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
  padding: 140px 0 80px;
  background: var(--gradient-hero);
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(29, 117, 236, 0.85) 0%, rgba(74, 144, 226, 0.75) 40%, rgba(146, 188, 244, 0.7) 100%);
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 50%;
}

.hero-home {
  background-image: url('assets/images/pexels-nemuel-6424589.jpg');
}

.hero-showcase {
  background-image: url('assets/images/pexels-cottonbro-5083413.jpg');
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
  max-width: 700px;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255, 255, 255, 0.9);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-white {
  background: var(--white);
  color: var(--primary-blue);
}

.btn-white:hover {
  background: var(--off-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.7);
  transform: translateY(-2px);
}

.btn-blue {
  background: var(--primary-blue);
  color: var(--white);
}

.btn-blue:hover {
  background: #1565d8;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Hero decorative code block */
.hero-visual {
  position: absolute;
  right: -40px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.07;
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  color: var(--white);
  white-space: pre;
  line-height: 1.8;
  pointer-events: none;
  user-select: none;
}

/* --- Sections --- */
.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--off-white);
}

.section-blue {
  background: var(--gradient-hero);
  color: var(--white);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-label {
  display: inline-block;
  background: rgba(29, 117, 236, 0.1);
  color: var(--primary-blue);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}

.section-blue .section-label {
  background: rgba(255, 255, 255, 0.15);
  color: var(--white);
}

.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-blue .section-header h2 {
  color: var(--white);
}

.section-header p {
  font-size: 1.05rem;
  color: var(--warm-gray);
  max-width: 600px;
  margin: 0 auto;
}

.section-blue .section-header p {
  color: rgba(255, 255, 255, 0.8);
}

/* --- Cards Grid --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.cards-grid-2col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
  border: 1px solid rgba(29, 117, 236, 0.08);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(29, 117, 236, 0.15);
}

.card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  width: 52px;
  height: 52px;
  background: rgba(29, 117, 236, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 18px;
  color: var(--primary-blue);
  transition: all var(--transition);
}

.card:hover .card-icon {
  background: var(--primary-blue);
  color: var(--white);
}

.card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

.card p {
  font-size: 0.92rem;
  color: var(--warm-gray);
  line-height: 1.6;
}

.card ul {
  margin-top: 12px;
}

.card ul li {
  font-size: 0.9rem;
  color: var(--charcoal);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
}

.card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  background: var(--light-blue);
  border-radius: 50%;
}

/* --- Pathway / Timeline --- */
.pathway {
  position: relative;
}

.pathway::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--light-blue);
  transform: translateX(-50%);
  border-radius: 2px;
}

.pathway-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 48px;
  position: relative;
}

.pathway-item:last-child {
  margin-bottom: 0;
}

.pathway-item:nth-child(odd) {
  flex-direction: row;
  padding-right: calc(50% + 40px);
}

.pathway-item:nth-child(even) {
  flex-direction: row-reverse;
  padding-left: calc(50% + 40px);
}

.pathway-dot {
  position: absolute;
  left: 50%;
  top: 24px;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  background: var(--primary-blue);
  border-radius: 50%;
  border: 4px solid var(--white);
  box-shadow: 0 0 0 3px var(--light-blue);
  z-index: 2;
}

.pathway-content {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(29, 117, 236, 0.08);
  transition: all var(--transition);
  width: 100%;
}

.pathway-content:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.pathway-grade {
  display: inline-block;
  background: var(--gradient-blue);
  color: var(--white);
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.pathway-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.pathway-content p {
  font-size: 0.92rem;
  color: var(--warm-gray);
  margin-bottom: 14px;
}

.pathway-content ul li {
  font-size: 0.88rem;
  color: var(--charcoal);
  padding: 5px 0 5px 20px;
  position: relative;
}

.pathway-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 7px;
  height: 7px;
  background: var(--light-blue);
  border-radius: 50%;
}

/* --- Certifications --- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.cert-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  align-items: center;
  gap: 20px;
  border: 1px solid rgba(29, 117, 236, 0.08);
  transition: all var(--transition);
}

.cert-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.cert-icon {
  width: 56px;
  height: 56px;
  background: var(--gradient-blue);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.cert-info h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.cert-info p {
  font-size: 0.85rem;
  color: var(--warm-gray);
}

/* --- Stats Bar --- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  padding: 48px 0;
}

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

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
}

/* --- Feature List --- */
.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.feature-list-2col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.feature-item:hover {
  background: rgba(29, 117, 236, 0.04);
}

.feature-icon {
  width: 40px;
  height: 40px;
  background: rgba(29, 117, 236, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  color: var(--primary-blue);
}

.feature-text h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.feature-text p {
  font-size: 0.85rem;
  color: var(--warm-gray);
}

/* --- Showcase: Cohort Cards --- */
.cohort-section {
  margin-bottom: 56px;
}

.cohort-section:last-child {
  margin-bottom: 0;
}

.cohort-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.cohort-number {
  width: 48px;
  height: 48px;
  background: var(--gradient-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 800;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.cohort-header h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--dark);
}

.student-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
}

.student-card {
  display: block;
  background: var(--white);
  border: 1px solid rgba(29, 117, 236, 0.1);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--charcoal);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.student-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-blue);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.student-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
  border-color: var(--light-blue);
  color: var(--primary-blue);
}

.student-card:hover::after {
  transform: scaleX(1);
}

.coming-soon {
  text-align: center;
  font-size: 1.1rem;
  color: var(--medium-gray);
  padding: 32px 0;
}

.student-card.disabled {
  background: var(--light-gray);
  color: var(--medium-gray);
  border-color: transparent;
  cursor: default;
  pointer-events: none;
  opacity: 0.55;
}

.student-card.disabled::after {
  display: none;
}

/* --- Highlight Box --- */
.highlight-box {
  background: var(--gradient-hero);
  border-radius: var(--radius);
  padding: 48px;
  text-align: center;
  color: var(--white);
  margin-top: 56px;
}

.highlight-box h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.highlight-box p {
  font-size: 1rem;
  opacity: 0.9;
  max-width: 500px;
  margin: 0 auto;
}

/* --- Why It Matters List --- */
.matters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.matters-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  background: var(--white);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(29, 117, 236, 0.06);
  transition: all var(--transition);
}

.matters-item:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.matters-icon {
  width: 36px;
  height: 36px;
  background: rgba(29, 117, 236, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}

.matters-item p {
  font-size: 0.92rem;
  color: var(--charcoal);
  font-weight: 500;
}

/* --- Footer --- */
.footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 40px 0;
  text-align: center;
}

.footer p {
  font-size: 0.85rem;
}

.footer a {
  color: var(--light-blue);
  transition: color var(--transition);
}

.footer a:hover {
  color: var(--white);
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* --- Responsive --- */
@media (max-width: 900px) {
  .pathway::before {
    left: 20px;
  }

  .pathway-item:nth-child(odd),
  .pathway-item:nth-child(even) {
    flex-direction: row;
    padding-left: 60px;
    padding-right: 0;
  }

  .pathway-dot {
    left: 20px;
  }

  .hero-visual {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 8px;
    border-bottom: 1px solid var(--light-gray);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    width: 100%;
    text-align: center;
    padding: 12px 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .section {
    padding: 56px 0;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .cards-grid-2col {
    grid-template-columns: 1fr;
  }

  .student-grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  }

  .highlight-box {
    padding: 32px 24px;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .nav-title {
    font-size: 0.95rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    justify-content: center;
  }

  .feature-list {
    grid-template-columns: 1fr;
  }

  .feature-list-2col {
    grid-template-columns: 1fr;
  }

  .cert-grid {
    grid-template-columns: 1fr;
  }
}