/* ============================================
   EngNetwork - Engineering Mentorship Platform
   Core Styles
   ============================================ */

:root {
  --primary: #0d4f8b;
  --primary-dark: #083358;
  --primary-light: #1a6bb5;
  --secondary: #f58220;
  --secondary-dark: #d96d0f;
  --accent: #00a896;
  --accent-light: #02c39a;
  --dark: #1a2332;
  --dark-soft: #2d3748;
  --gray-900: #1e293b;
  --gray-700: #475569;
  --gray-500: #64748b;
  --gray-300: #cbd5e1;
  --gray-100: #f1f5f9;
  --gray-50: #f8fafc;
  --white: #ffffff;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition: all 0.3s ease;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Plus Jakarta Sans', var(--font-primary);
  --header-height: 80px;
}

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

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

body {
  font-family: var(--font-primary);
  color: var(--gray-700);
  line-height: 1.7;
  background: var(--white);
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--dark);
  line-height: 1.3;
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p { margin-bottom: 1rem; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-wide {
  max-width: 1400px;
}

.section {
  padding: 80px 0;
}

.section-sm {
  padding: 50px 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px;
}

.section-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--secondary);
  margin-bottom: 12px;
}

.section-title {
  margin-bottom: 16px;
}

.section-desc {
  color: var(--gray-500);
  font-size: 1.0625rem;
}

.bg-light { background: var(--gray-50); }
.bg-primary { background: var(--primary); color: var(--white); }
.bg-dark { background: var(--dark); color: var(--gray-300); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--secondary-dark);
  border-color: var(--secondary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

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

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.6);
}

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

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

.btn-white:hover {
  background: var(--gray-100);
  transform: translateY(-2px);
}

.btn-sm { padding: 8px 20px; font-size: 0.875rem; }
.btn-lg { padding: 16px 36px; font-size: 1rem; }

/* Top Bar */
.top-bar {
  background: var(--dark);
  color: var(--gray-300);
  font-size: 0.8125rem;
  padding: 8px 0;
  display: none;
}

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

.top-bar a:hover { color: var(--secondary); }

.top-bar-info {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.top-bar-info span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.top-bar-social {
  display: flex;
  gap: 12px;
}

.top-bar-social a {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

.top-bar-social a:hover {
  background: var(--secondary);
  color: var(--white);
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  overflow-x: clip;
}

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

.header .container {
  max-width: 100%;
  padding: 0 24px;
}

.header-inner {
  display: flex;
  align-items: center;
  height: var(--header-height);
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.header-nav-group {
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
  gap: 16px;
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.25rem;
  font-weight: 800;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.logo-text span {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--gray-500);
  letter-spacing: 0.5px;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 2px;
  flex-wrap: nowrap;
  flex: 1;
  min-width: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 8px 10px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--gray-700);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
  background: rgba(13, 79, 139, 0.06);
}

.nav-link i {
  font-size: 0.625rem;
  transition: transform 0.3s;
}

.nav-item:hover .nav-link i {
  transform: rotate(180deg);
}

/* Mega Menu */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 280px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 100;
}

.mega-menu.wide {
  min-width: 560px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 24px;
}

.nav-item:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.mega-menu a {
  display: block;
  padding: 8px 12px;
  font-size: 0.875rem;
  color: var(--gray-700);
  border-radius: var(--radius-sm);
}

.mega-menu a:hover {
  background: var(--gray-50);
  color: var(--primary);
  padding-left: 16px;
}

.mega-menu-title {
  grid-column: 1 / -1;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--secondary);
  padding: 0 12px 8px;
  border-bottom: 1px solid var(--gray-100);
  margin-bottom: 4px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  margin-left: auto;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  transition: var(--transition);
}

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

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

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

/* Hero Section */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  overflow: hidden;
  padding: 60px 0;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  color: var(--white);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: 24px;
  border: 1px solid rgba(255,255,255,0.2);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--accent-light);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero h1 {
  color: var(--white);
  margin-bottom: 20px;
}

.hero h1 span {
  color: var(--secondary);
}

.hero-desc {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-search {
  display: flex;
  background: var(--white);
  border-radius: var(--radius-full);
  padding: 6px;
  max-width: 520px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 24px;
}

.hero-search input {
  flex: 1;
  border: none;
  padding: 14px 24px;
  font-size: 0.9375rem;
  outline: none;
  border-radius: var(--radius-full);
  color: var(--gray-700);
}

.hero-search input::placeholder {
  color: var(--gray-500);
}

.hero-search .btn {
  border-radius: var(--radius-full);
  padding: 14px 28px;
}

/* Hero Mentor Carousel */
.hero-mentor-carousel {
  margin: 28px 0 32px;
  width: 100vw;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
  padding: 0 24px;
}

.hero-mentor-carousel-label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 20px;
}

.hero-mentor-carousel-label i {
  color: var(--secondary);
  font-size: 1rem;
}

.hero-carousel-viewport {
  overflow: hidden;
  width: 100%;
  mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}

.hero-carousel-track {
  display: flex;
  gap: 24px;
  width: max-content;
  animation: heroCarouselScroll 40s linear infinite;
}

.hero-carousel-track:hover {
  animation-play-state: paused;
}

@media (prefers-reduced-motion: reduce) {
  .hero-carousel-track {
    animation: none;
    overflow-x: auto;
    max-width: 100%;
  }
}

@keyframes heroCarouselScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

.hero-carousel-slide {
  flex-shrink: 0;
}

.hero-carousel-card {
  width: 260px;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px 24px 24px;
  text-align: center;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.8);
}

.hero-carousel-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.22);
}

.hero-carousel-avatar {
  position: relative;
  width: 110px;
  height: 110px;
  margin: 0 auto 18px;
}

.hero-carousel-avatar img {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--gray-100);
  box-shadow: 0 4px 16px rgba(13, 79, 139, 0.15);
}

.hero-carousel-badge {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  background: var(--secondary);
  color: var(--white);
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(245, 130, 32, 0.4);
}

.hero-carousel-card h4 {
  color: var(--dark);
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.hero-carousel-role {
  font-size: 0.875rem;
  color: var(--primary);
  font-weight: 600;
  margin: 0 0 4px;
}

.hero-carousel-exp {
  font-size: 0.8125rem;
  color: var(--gray-500);
  margin: 0 0 12px;
}

.hero-carousel-rating {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  margin-bottom: 18px;
}

.hero-carousel-rating i {
  color: #fbbf24;
  font-size: 0.8125rem;
}

.hero-carousel-rating span {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--gray-700);
  margin-left: 4px;
}

.btn-connect-lg {
  display: block;
  width: 100%;
  padding: 12px 24px;
  font-size: 0.9375rem;
  font-weight: 600;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: var(--radius-full);
  text-align: center;
  transition: var(--transition);
}

.btn-connect-lg:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: scale(1.02);
  box-shadow: 0 6px 20px rgba(13, 79, 139, 0.35);
}

.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.hero-stat strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--white);
  font-family: var(--font-heading);
}

.hero-stat span {
  font-size: 0.8125rem;
  opacity: 0.8;
}

.hero-visual {
  position: relative;
}

.hero-card-stack {
  position: relative;
  height: 480px;
}

.hero-mentor-card {
  position: absolute;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 16px;
  animation: float 6s ease-in-out infinite;
}

.hero-mentor-card:nth-child(1) {
  top: 0;
  right: 0;
  width: 280px;
  animation-delay: 0s;
}

.hero-mentor-card:nth-child(2) {
  top: 120px;
  left: 0;
  width: 260px;
  animation-delay: 1s;
}

.hero-mentor-card:nth-child(3) {
  top: 240px;
  right: 40px;
  width: 270px;
  animation-delay: 2s;
}

.hero-mentor-card:nth-child(4) {
  bottom: 40px;
  left: 20px;
  width: 250px;
  animation-delay: 3s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.mentor-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.mentor-info h4 {
  font-size: 0.9375rem;
  margin-bottom: 2px;
}

.mentor-info p {
  font-size: 0.8125rem;
  color: var(--gray-500);
  margin: 0;
}

.mentor-tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(13, 79, 139, 0.1);
  color: var(--primary);
  margin-top: 6px;
}

.hero-main-image {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), rgba(255,255,255,0.05));
  border: 3px solid rgba(255,255,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  color: rgba(255,255,255,0.3);
}

/* Discipline Tags */
.discipline-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.discipline-tag {
  padding: 6px 16px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  color: var(--white);
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image-main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.3);
  font-size: 5rem;
}

.about-image-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--secondary);
  color: var(--white);
  padding: 24px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.about-image-badge strong {
  display: block;
  font-size: 2rem;
  font-family: var(--font-heading);
  color: var(--white);
}

.about-image-badge span {
  font-size: 0.8125rem;
}

.about-content .section-label {
  text-align: left;
}

.about-content h2 {
  text-align: left;
  margin-bottom: 20px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 30px;
}

.about-feature {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.about-feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(13, 79, 139, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.about-feature h4 {
  margin-bottom: 4px;
}

.about-feature p {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin: 0;
}

/* Steps / How It Works */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.step-card {
  text-align: center;
  padding: 40px 30px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
  position: relative;
}

.step-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0 auto 20px;
  font-family: var(--font-heading);
}

.step-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: rgba(245, 130, 32, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--secondary);
}

.step-card h3 {
  margin-bottom: 12px;
}

.step-card p {
  font-size: 0.9375rem;
  color: var(--gray-500);
  margin: 0;
}

/* Membership Cards */
.membership-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.membership-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  border: 2px solid var(--gray-100);
  transition: var(--transition);
  text-align: center;
  position: relative;
}

.membership-card:hover,
.membership-card.featured {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.membership-card.featured {
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
}

.membership-card.featured h3,
.membership-card.featured .membership-price,
.membership-card.featured .membership-price span {
  color: var(--white);
}

.membership-card.featured .membership-features li {
  color: rgba(255,255,255,0.85);
}

.membership-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--secondary);
  color: var(--white);
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.membership-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: rgba(13, 79, 139, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
}

.membership-card.featured .membership-icon {
  background: rgba(255,255,255,0.15);
  color: var(--white);
}

.membership-card h3 {
  margin-bottom: 8px;
}

.membership-audience {
  font-size: 0.8125rem;
  color: var(--gray-500);
  margin-bottom: 16px;
}

.membership-card.featured .membership-audience {
  color: rgba(255,255,255,0.7);
}

.membership-price {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-heading);
  color: var(--primary);
  margin-bottom: 20px;
}

.membership-price span {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-500);
}

.membership-features {
  text-align: left;
  margin-bottom: 24px;
}

.membership-features li {
  padding: 8px 0;
  font-size: 0.875rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  border-bottom: 1px solid var(--gray-100);
}

.membership-card.featured .membership-features li {
  border-color: rgba(255,255,255,0.15);
}

.membership-features li i {
  color: var(--accent);
  margin-top: 3px;
  flex-shrink: 0;
}

.membership-card.featured .membership-features li i {
  color: var(--secondary);
}

/* Mentor Cards */
.mentors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.mentor-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

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

.mentor-card-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  padding: 30px 20px 50px;
  text-align: center;
  position: relative;
}

.mentor-card-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: var(--white);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  border: 4px solid rgba(255,255,255,0.3);
}

.mentor-discipline {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--secondary);
  color: var(--white);
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.mentor-card-body {
  padding: 20px;
  text-align: center;
  margin-top: -20px;
}

.mentor-card-body h3 {
  margin-bottom: 4px;
}

.mentor-title {
  font-size: 0.8125rem;
  color: var(--gray-500);
  margin-bottom: 12px;
}

.mentor-rating {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-bottom: 12px;
}

.mentor-rating i {
  color: #fbbf24;
  font-size: 0.875rem;
}

.mentor-rating span {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-700);
}

.mentor-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 16px;
}

.skill-tag {
  font-size: 0.6875rem;
  padding: 3px 10px;
  background: var(--gray-100);
  border-radius: var(--radius-full);
  color: var(--gray-700);
}

.mentor-card-footer {
  padding: 0 20px 20px;
  display: flex;
  gap: 8px;
}

.mentor-card-footer .btn {
  flex: 1;
  padding: 10px;
  font-size: 0.8125rem;
}

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

.event-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.event-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.event-image {
  height: 180px;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.4);
  font-size: 3rem;
  position: relative;
}

.event-date-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.event-date-badge strong {
  display: block;
  font-size: 1.25rem;
  color: var(--primary);
  line-height: 1;
}

.event-date-badge span {
  font-size: 0.6875rem;
  color: var(--gray-500);
  text-transform: uppercase;
}

.event-body {
  padding: 20px;
}

.event-type {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.event-body h3 {
  font-size: 1.0625rem;
  margin-bottom: 12px;
}

.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.8125rem;
  color: var(--gray-500);
  margin-bottom: 16px;
}

.event-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Articles / Blog */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.article-image {
  height: 160px;
  background: linear-gradient(135deg, var(--gray-300), var(--gray-100));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
  font-size: 2.5rem;
}

.article-body {
  padding: 20px;
}

.article-category {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.article-body h3 {
  font-size: 1rem;
  margin-bottom: 10px;
  line-height: 1.4;
}

.article-body h3 a:hover {
  color: var(--primary);
}

.article-date {
  font-size: 0.8125rem;
  color: var(--gray-500);
}

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

.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  position: relative;
}

.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: 16px;
  right: 24px;
  font-size: 4rem;
  color: var(--gray-100);
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-text {
  font-size: 0.9375rem;
  color: var(--gray-700);
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
}

.testimonial-author h4 {
  font-size: 0.9375rem;
  margin-bottom: 2px;
}

.testimonial-author p {
  font-size: 0.8125rem;
  color: var(--gray-500);
  margin: 0;
}

/* Partners */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  align-items: center;
}

.partner-logo {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  text-align: center;
  transition: var(--transition);
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.partner-logo img {
  max-width: 100%;
  max-height: 56px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(20%);
  opacity: 0.9;
  transition: var(--transition);
}

.partner-logo:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.partner-logo:hover img {
  filter: grayscale(0%);
  opacity: 1;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-section .container {
  position: relative;
  z-index: 2;
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255,255,255,0.85);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto 32px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  background: var(--dark);
  color: var(--gray-300);
  padding-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand p {
  font-size: 0.875rem;
  margin: 16px 0 24px;
  line-height: 1.8;
}

.footer-brand .logo-text {
  color: var(--white);
}

.footer h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--gray-300);
}

.footer-links a:hover {
  color: var(--secondary);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.875rem;
}

.footer-contact i {
  color: var(--secondary);
  margin-top: 4px;
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.8125rem;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a:hover {
  color: var(--secondary);
}

/* Page Header (Inner Pages) */
.page-header {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 60px 0;
  text-align: center;
  color: var(--white);
}

.page-header h1 {
  color: var(--white);
  margin-bottom: 12px;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  font-size: 0.875rem;
  opacity: 0.85;
}

.breadcrumb a:hover {
  color: var(--secondary);
}

.breadcrumb span {
  opacity: 0.6;
}

/* Inner Page Content */
.content-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: start;
}

.sidebar {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
  padding: 24px;
  position: sticky;
  top: calc(var(--header-height) + 20px);
}

.sidebar h4 {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary);
}

.sidebar-nav a {
  display: block;
  padding: 10px 14px;
  font-size: 0.875rem;
  color: var(--gray-700);
  border-radius: var(--radius-sm);
  border-left: 3px solid transparent;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  background: rgba(13, 79, 139, 0.06);
  color: var(--primary);
  border-left-color: var(--primary);
}

.content-main {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
  padding: 40px;
}

.content-main h2 {
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--gray-100);
}

.content-main h3 {
  margin: 30px 0 16px;
  color: var(--primary);
}

.info-box {
  background: rgba(13, 79, 139, 0.06);
  border-left: 4px solid var(--primary);
  padding: 20px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 24px 0;
}

.info-box.warning {
  background: rgba(245, 130, 32, 0.08);
  border-color: var(--secondary);
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 8px;
}

.form-group label .required {
  color: var(--danger);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-family: inherit;
  transition: var(--transition);
  color: var(--gray-700);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(13, 79, 139, 0.1);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
}

.form-check input {
  margin-top: 4px;
}

/* Login / Register */
.auth-wrapper {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding: 40px 0;
  background: var(--gray-50);
}

.auth-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  max-width: 960px;
  margin: 0 auto;
}

.auth-info {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 60px 40px;
  color: var(--white);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.auth-info h2 {
  color: var(--white);
  margin-bottom: 16px;
}

.auth-info p {
  opacity: 0.85;
  margin-bottom: 30px;
}

.auth-info-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.9375rem;
}

.auth-info-list i {
  color: var(--secondary);
}

.auth-form {
  padding: 60px 40px;
}

.auth-form h2 {
  margin-bottom: 8px;
}

.auth-form .subtitle {
  color: var(--gray-500);
  margin-bottom: 30px;
}

.auth-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 30px;
  border-bottom: 2px solid var(--gray-100);
}

.auth-tab {
  flex: 1;
  padding: 12px;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-500);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
}

.auth-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.auth-divider {
  text-align: center;
  margin: 24px 0;
  position: relative;
  font-size: 0.8125rem;
  color: var(--gray-500);
}

.auth-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gray-100);
}

.auth-divider span {
  background: var(--white);
  padding: 0 16px;
  position: relative;
}

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.875rem;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--gray-100);
}

.data-table th {
  background: var(--gray-50);
  font-weight: 600;
  color: var(--dark);
}

.data-table tr:hover td {
  background: var(--gray-50);
}

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

.benefit-card {
  padding: 30px;
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: var(--transition);
}

.benefit-card:hover {
  background: var(--white);
  box-shadow: var(--shadow-md);
}

.benefit-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: rgba(13, 79, 139, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
}

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: var(--white);
  border: none;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: inherit;
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--gray-50);
}

.faq-question i {
  transition: transform 0.3s;
  color: var(--primary);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.9375rem;
  color: var(--gray-500);
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
}

.contact-info-card {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contact-info-card h3 {
  color: var(--white);
  margin-bottom: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.contact-item h4 {
  color: var(--white);
  font-size: 0.9375rem;
  margin-bottom: 4px;
}

.contact-item p {
  font-size: 0.875rem;
  opacity: 0.85;
  margin: 0;
}

/* Utility */
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }

.view-all {
  text-align: center;
  margin-top: 40px;
}