/* ===========================
   CSS Variables & Reset
   =========================== */
:root {
  /* Colors */
  --primary-color: #1e3a5f;
  --secondary-color: #c9a961;
  --accent-color: #2c5f8d;
  --text-dark: #1a202c;
  --text-medium: #4a5568;
  --text-light: #718096;
  --bg-light: #f7fafc;
  --bg-white: #ffffff;
  --border-color: #e2e8f0;
  --success-color: #48bb78;
  --warning-color: #ed8936;
  --info-color: #4299e1;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ===========================
   Header & Navigation
   =========================== */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-white);
  box-shadow: var(--shadow-sm);
  border-bottom: 3px solid var(--secondary-color);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  transition: transform 0.2s ease;
}

.logo:hover {
  transform: scale(1.05);
}

.logo img {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--primary-color);
  transition: all 0.3s ease;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-links a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background-color: var(--secondary-color);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--primary-color);
}

.nav-links a:hover::after {
  width: 100%;
}

/* ===========================
   Hero Section
   =========================== */
.hero {
  position: relative;
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0.05;
  background-image: 
    radial-gradient(circle at 20% 50%, var(--primary-color) 1px, transparent 1px),
    radial-gradient(circle at 80% 80%, var(--secondary-color) 1px, transparent 1px);
  background-size: 50px 50px;
}

.hero-content {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--secondary-color);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-sm);
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary-color);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-medium);
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}

.hero-note {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  background-color: #fffbeb;
  border-left: 4px solid var(--warning-color);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  font-size: 0.95rem;
  color: var(--text-medium);
}

.hero-note i {
  color: var(--warning-color);
  margin-top: 2px;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero-logo img {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

/* ===========================
   Buttons
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
}

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

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

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

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: var(--bg-white);
  transform: translateY(-2px);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1.1rem;
}

/* ===========================
   Sections
   =========================== */
.section {
  padding: var(--spacing-2xl) 0;
}

.section-alt {
  background-color: var(--bg-light);
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--secondary-color);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-sm);
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

.section-intro {
  font-size: 1.125rem;
  color: var(--text-medium);
  line-height: 1.7;
}

/* ===========================
   Mission, Vision, Purpose Cards
   =========================== */
.mission-vision-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.mvp-card {
  background-color: var(--bg-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mvp-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.mvp-card-full {
  grid-column: 1 / -1;
}

.mvp-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.mvp-icon i {
  font-size: 1.75rem;
  color: var(--bg-white);
}

.mvp-card h3 {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

.mvp-card p {
  color: var(--text-medium);
  line-height: 1.7;
}

.purpose-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.purpose-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  color: var(--text-medium);
  line-height: 1.7;
}

.purpose-list i {
  color: var(--secondary-color);
  font-size: 1.25rem;
  margin-top: 2px;
}

/* ===========================
   Info Boxes
   =========================== */
.info-box {
  background-color: var(--bg-white);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.info-box-secondary {
  background-color: var(--bg-light);
  border-color: var(--primary-color);
  border-left-width: 5px;
}

.info-box-highlight {
  background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
  border-color: var(--secondary-color);
  border-left-width: 5px;
}

.info-box h3,
.info-box h4 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.info-box p {
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.info-box p:last-child {
  margin-bottom: 0;
}

/* ===========================
   Membership Cards
   =========================== */
.membership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.membership-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.membership-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--secondary-color);
}

.membership-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.membership-icon i {
  font-size: 2rem;
  color: var(--bg-white);
}

.membership-badge {
  display: inline-block;
  background-color: var(--secondary-color);
  color: var(--bg-white);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-sm);
}

.membership-card h3 {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

.membership-description {
  color: var(--text-medium);
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

.membership-card h4 {
  font-size: 1rem;
  color: var(--primary-color);
  margin: var(--spacing-lg) 0 var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.membership-card ul {
  list-style: none;
  margin-bottom: var(--spacing-md);
}

.membership-card ul li {
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  position: relative;
  color: var(--text-medium);
  line-height: 1.6;
}

.membership-card ul li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--secondary-color);
  font-weight: bold;
  font-size: 1.5rem;
}

.membership-privileges,
.membership-note {
  background-color: var(--bg-light);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-top: var(--spacing-md);
  font-size: 0.95rem;
  line-height: 1.6;
}

.membership-note {
  background-color: #fffbeb;
  border-left: 4px solid var(--warning-color);
}

.membership-privileges i,
.membership-note i {
  color: var(--secondary-color);
}

.membership-note i {
  color: var(--warning-color);
}

/* ===========================
   Tables
   =========================== */
.table-wrapper {
  overflow-x: auto;
  margin-bottom: var(--spacing-lg);
}

table {
  width: 100%;
  background-color: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

thead {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: var(--bg-white);
}

th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
}

th i {
  margin-right: var(--spacing-xs);
}

td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  color: var(--text-medium);
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background-color: var(--bg-light);
}

.status-badge {
  display: inline-block;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
}

.status-approved {
  background-color: #d1fae5;
  color: #047857;
}

.status-review {
  background-color: #fef3c7;
  color: #92400e;
}

/* ===========================
   Feature Cards
   =========================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.feature-card {
  background-color: var(--bg-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md);
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon i {
  font-size: 2rem;
  color: var(--bg-white);
}

.feature-card h3 {
  font-size: 1.25rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  color: var(--text-medium);
  line-height: 1.6;
}

/* ===========================
   Research Cards
   =========================== */
.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.research-card {
  background-color: var(--bg-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  border-left: 4px solid var(--secondary-color);
}

.research-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.research-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--secondary-color), #e6c982);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.research-icon i {
  font-size: 1.75rem;
  color: var(--bg-white);
}

.research-card h3 {
  font-size: 1.25rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.research-card p {
  color: var(--text-medium);
  line-height: 1.7;
}

/* ===========================
   Content Blocks
   =========================== */
.content-block {
  background-color: var(--bg-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-lg);
}

.content-block h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.content-block p {
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.styled-list {
  list-style: none;
  margin: var(--spacing-md) 0;
}

.styled-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-xs);
}

.styled-list i {
  color: var(--success-color);
  margin-top: 2px;
}

/* ===========================
   Leadership Section
   =========================== */
.leadership-section {
  margin-bottom: var(--spacing-xl);
}

.leadership-section h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.leadership-section p {
  color: var(--text-medium);
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}

/* ===========================
   Events Cards
   =========================== */
.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.event-card {
  background-color: var(--bg-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.event-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--secondary-color);
}

.event-card-featured {
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
  border-color: var(--secondary-color);
}

.event-card-future {
  background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
}

.event-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.event-icon i {
  font-size: 1.75rem;
  color: var(--bg-white);
}

.event-card h3 {
  font-size: 1.25rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

.event-details {
  background-color: var(--bg-white);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  border-left: 4px solid var(--secondary-color);
}

.event-details p {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-dark);
  margin-bottom: var(--spacing-xs);
  font-size: 0.95rem;
}

.event-details p:last-child {
  margin-bottom: 0;
}

.event-details i {
  color: var(--secondary-color);
  width: 20px;
}

.event-card > p {
  color: var(--text-medium);
  line-height: 1.7;
}

/* ===========================
   Contact Section
   =========================== */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-xl);
}

.contact-info h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.contact-form-wrapper {
  background-color: var(--bg-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  color: var(--text-dark);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.form-group label i {
  color: var(--secondary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: var(--spacing-sm);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* ===========================
   Footer
   =========================== */
footer {
  background-color: var(--primary-color);
  color: var(--bg-white);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

footer p {
  margin-bottom: var(--spacing-sm);
}

footer a {
  color: var(--secondary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 968px) {
  .hero-content {
    grid-template-columns: 1fr;
  }
  
  .hero-logo {
    text-align: center;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .mission-vision-grid {
    grid-template-columns: 1fr;
  }
  
  .membership-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  
  nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-white);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  
  header.nav-open nav {
    max-height: 500px;
  }
  
  .nav-links {
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
  }
  
  .nav-links a {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .section-header h2 {
    font-size: 2rem;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .features-grid,
  .research-grid {
    grid-template-columns: 1fr;
  }
  
  .events-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.75rem;
  }
  
  .section-header h2 {
    font-size: 1.75rem;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  table {
    font-size: 0.875rem;
  }
  
  th, td {
    padding: var(--spacing-sm);
  }
}

/* ===========================
   Animations
   =========================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section {
  animation: fadeInUp 0.6s ease-out;
}

/* ===========================
   Print Styles
   =========================== */
@media print {
  header {
    position: static;
  }
  
  .nav-toggle,
  .hero-buttons,
  .contact-form,
  footer a {
    display: none;
  }
  
  .section {
    page-break-inside: avoid;
  }
}