@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  /* Colors */
  --bg-primary: #0a0b10;
  --bg-secondary: #121420;
  --bg-card: rgba(22, 26, 43, 0.6);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(99, 102, 241, 0.2);
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --accent-primary: #6366f1; /* Indigo */
  --accent-secondary: #06b6d4; /* Cyan */
  --accent-glow: rgba(99, 102, 241, 0.15);
  
  /* Fonts */
  --font-headings: 'Space Grotesk', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  
  /* Layout */
  --max-width: 1200px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
}

/* Base resets & styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Background Gradients */
.bg-glow-1 {
  position: absolute;
  top: -10%;
  left: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, rgba(0,0,0,0) 70%);
  z-index: -1;
  pointer-events: none;
}

.bg-glow-2 {
  position: absolute;
  top: 45%;
  right: -10%;
  width: 45vw;
  height: 45vw;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, rgba(0,0,0,0) 70%);
  z-index: -1;
  pointer-events: none;
}

/* Typography helper */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headings);
  font-weight: 700;
  line-height: 1.2;
}

/* Navigation Header */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 11, 16, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.logo-text {
  font-family: var(--font-headings);
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color 0.3s ease;
  font-size: 0.95rem;
}

.nav-link:hover {
  color: var(--accent-secondary);
}

.cta-btn {
  background: linear-gradient(135deg, var(--accent-primary) 0%, #4f46e5 100%);
  color: #fff;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
  font-size: 0.9rem;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.35);
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--text-primary);
  margin: 5px 0;
  transition: 0.3s;
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 2rem;
}

/* Hero Section */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: center;
  padding-top: 6rem;
  padding-bottom: 6rem;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-tag {
  align-self: flex-start;
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent-secondary);
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-title {
  font-size: 3.5rem;
  line-height: 1.1;
  background: linear-gradient(135deg, #ffffff 40%, #c7d2fe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.hero-desc-highlight {
  margin-top: 1rem;
  font-size: 1rem;
  color: var(--text-primary);
  border-left: 3px solid var(--accent-primary);
  padding-left: 1rem;
}

.career-roles-container {
  margin-top: 1rem;
  background: rgba(22, 26, 43, 0.4);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  backdrop-filter: blur(10px);
}

.career-roles-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  letter-spacing: 0.02em;
}

.career-roles-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.role-badge {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  padding: 0.35rem 0.75rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all 0.25s ease;
}

.role-badge:hover {
  background: rgba(99, 102, 241, 0.1);
  border-color: rgba(99, 102, 241, 0.3);
  color: var(--accent-secondary);
  transform: translateY(-2px);
}

.role-icon {
  font-size: 0.9rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.hero-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5), 0 0 40px rgba(99, 102, 241, 0.1);
  border: 1px solid var(--border-accent);
}

.hero-img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

.hero-visual:hover .hero-img {
  transform: scale(1.03);
}

/* Sections General */
.section-title-wrap {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  display: inline-block;
  color: var(--accent-secondary);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 2.5rem;
  color: var(--text-primary);
}

/* Showcase Section */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.showcase-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
}

.showcase-card:hover {
  transform: translateY(-5px);
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 12px 30px rgba(99, 102, 241, 0.15);
}

.card-img-wrap {
  position: relative;
  overflow: hidden;
  height: 240px;
  background-color: #0d0f17;
  border-bottom: 1px solid var(--border-color);
}

.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.showcase-card:hover .card-img {
  transform: scale(1.05);
}

.card-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex-grow: 1;
}

.card-title {
  font-size: 1.4rem;
  color: var(--text-primary);
  font-family: var(--font-headings);
}

.card-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Curriculum (Syllabus) Section */
.curriculum-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.curriculum-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.curriculum-card:hover {
  transform: translateY(-4px);
  border-color: rgba(6, 182, 212, 0.4);
  box-shadow: 0 10px 25px rgba(6, 182, 212, 0.1);
}

.curr-img-wrap {
  height: 160px;
  position: relative;
  overflow: hidden;
  background-color: #0d0f17;
  border-bottom: 1px solid var(--border-color);
}

.curr-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.curr-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex-grow: 1;
}

.curr-header {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.curr-module-no {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-secondary);
  letter-spacing: 0.05em;
}

.curr-title {
  font-size: 1.2rem;
  color: var(--text-primary);
}

.curr-topics {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.curr-topics li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.curr-topics li::before {
  content: "⚡";
  color: var(--accent-primary);
  font-size: 0.8rem;
  margin-top: 0.15rem;
}

/* Instructor Section */
.instructor {
  background: radial-gradient(ellipse at 50% 50%, rgba(22, 26, 43, 0.6) 0%, rgba(10, 11, 16, 0.8) 100%);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.instructor-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 5rem 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.instructor-logo {
  height: 60px;
  width: auto;
  object-fit: contain;
  margin-bottom: 0.5rem;
}

.profile-card {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3), 0 0 30px rgba(99, 102, 241, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.profile-avatar-placeholder {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: #fff;
  font-weight: 700;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
  border: 4px solid var(--bg-primary);
}

.instructor-name {
  font-size: 2rem;
  color: var(--text-primary);
}

.instructor-title {
  font-size: 1.1rem;
  color: var(--accent-secondary);
  font-weight: 600;
}

.instructor-bio {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 700px;
}

.instructor-mission {
  background: rgba(99, 102, 241, 0.08);
  border: 1px dashed var(--accent-primary);
  border-radius: var(--radius-md);
  padding: 1.25rem 2rem;
  width: 100%;
  max-width: 600px;
}

.instructor-mission-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  color: var(--accent-primary);
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.instructor-mission-text {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* Contact & Footer Section */
footer {
  background-color: #06070a;
  border-top: 1px solid var(--border-color);
  padding: 4rem 2rem 2.5rem;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 350px;
}

.footer-logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-tagline {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contact-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.contact-value {
  font-size: 1.1rem;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s;
}

.contact-value:hover {
  color: var(--accent-secondary);
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: transform 0.2s, background-color 0.2s, border-color 0.2s;
}

.social-icon-btn img {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

.social-icon-btn:hover {
  transform: translateY(-2px);
  background-color: rgba(99, 102, 241, 0.1);
  border-color: var(--accent-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.copyright {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 500px;
  text-align: right;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .curriculum-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-title {
    font-size: 3rem;
  }
}

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 3rem;
    padding-bottom: 3rem;
    gap: 2rem;
  }
  
  .hero-tag {
    align-self: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-desc-highlight {
    border-left: none;
    border-top: 2px solid var(--accent-primary);
    padding-left: 0;
    padding-top: 0.75rem;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .showcase-grid {
    grid-template-columns: 1fr;
  }
  
  .curriculum-grid {
    grid-template-columns: 1fr;
  }
  
  .nav-menu {
    display: none; /* JS will toggle class */
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 2rem;
    gap: 1.5rem;
  }
  
  .footer-top {
    flex-direction: column;
    gap: 2.5rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
  
  .footer-desc {
    text-align: center;
  }
}