/* ==========================================================================
   IEEE EDS PMEC Student Branch Chapter - Main Stylesheet
   ========================================================================== */

/* 1. Imports & Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* 2. Custom CSS Variables */
:root {
  /* Color Palette — Edge-AI Hackathon "circuit board" identity */
  --primary: #0A5FC2;       /* Electric IEEE Blue */
  --primary-rgb: 10, 95, 194;
  --primary-deep: #052a5e;  /* Deep navy PCB base */
  --primary-deep-rgb: 5, 42, 94;
  --secondary: #12C4E8;     /* Electric Cyan glow */
  --secondary-rgb: 18, 196, 232;
  --glow: #35E4FF;          /* Bright chip-glow cyan */
  --glow-rgb: 53, 228, 255;
  --accent: #FFC53D;        /* Prize-pool Gold */
  --accent-rgb: 255, 197, 61;
  --accent-deep: #F5A623;
  --white: #FFFFFF;
  --dark-gray: #1F2937;

  /* Signature gradients */
  --grad-primary: linear-gradient(135deg, #0A5FC2 0%, #12C4E8 100%);
  --grad-chip: linear-gradient(135deg, #052a5e 0%, #0A5FC2 45%, #35E4FF 100%);
  --grad-gold: linear-gradient(135deg, #FFC53D 0%, #F5A623 100%);

  /* Theme Colors - Light Mode (Default) */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F4F8FD;
  --bg-tertiary: #E8F1FB;
  --text-primary: #0E1B2E;
  --text-secondary: #45566B;
  --text-muted: #9CA3AF;
  --card-bg: #FFFFFF;
  --card-border: rgba(10, 95, 194, 0.10);
  --navbar-bg: rgba(255, 255, 255, 0.85);
  --navbar-border: rgba(10, 95, 194, 0.10);
  --glass-bg: rgba(255, 255, 255, 0.45);
  --glass-border: rgba(255, 255, 255, 0.4);
  --circuit-line: rgba(10, 95, 194, 0.22);
  --circuit-node: rgba(18, 196, 232, 0.55);
  --primary-glow: rgba(18, 196, 232, 0.45);

  /* Shadow Levels */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 10px 25px rgba(10, 95, 194, 0.08);
  --shadow-lg: 0 20px 40px rgba(10, 95, 194, 0.12);
  --shadow-hover: 0 25px 50px rgba(18, 196, 232, 0.22);
  --glow-shadow: 0 0 24px rgba(53, 228, 255, 0.45);
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layout Dimensions */
  --nav-height: 80px;
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
}

/* Dark Mode Theme Overrides — deep PCB navy from the brochure */
body.dark-mode {
  --primary: #2E8BE6;        /* brighter electric blue on dark */
  --bg-primary: #061024;     /* Deep circuit navy */
  --bg-secondary: #0A1A38;   /* Navy panel */
  --bg-tertiary: #12294F;    /* Navy raised */
  --text-primary: #EAF4FF;
  --text-secondary: #A9C2DD;
  --text-muted: #64748B;
  --card-bg: #0C1F42;
  --card-border: rgba(53, 228, 255, 0.14);
  --navbar-bg: rgba(6, 16, 36, 0.82);
  --navbar-border: rgba(53, 228, 255, 0.12);
  --glass-bg: rgba(12, 31, 66, 0.55);
  --glass-border: rgba(53, 228, 255, 0.12);
  --circuit-line: rgba(53, 228, 255, 0.28);
  --circuit-node: rgba(53, 228, 255, 0.75);

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.45);
  --shadow-hover: 0 25px 50px rgba(18, 196, 232, 0.28);
  --glow-shadow: 0 0 26px rgba(53, 228, 255, 0.55);
}

/* 3. Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-secondary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.3;
  transition: color var(--transition-normal);
}

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

ul {
  list-style: none;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

/* 4. Common & Utility Classes */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-bg {
  background-color: rgba(var(--primary-rgb), 0.045);
}

body.dark-mode .section-bg {
  background-color: rgba(var(--glow-rgb), 0.05);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.25rem;
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -8px;
  transform: translateX(-50%);
  width: 64px;
  height: 4px;
  background: var(--grad-primary);
  border-radius: 2px;
  box-shadow: 0 0 14px rgba(var(--secondary-rgb), 0.6);
  transition: var(--transition-normal);
}

.section-header h2::before {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -8px;
  transform: translateX(calc(-50% + 42px));
  width: 8px;
  height: 8px;
  margin-bottom: -2px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(var(--accent-rgb), 0.9);
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Button Component */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-normal);
  font-size: 0.95rem;
  gap: 8px;
}

/* Shared shine sweep for filled buttons */
.btn-primary, .btn-accent {
  position: relative;
  overflow: hidden;
  z-index: 0;
}
.btn-primary::before, .btn-accent::before {
  content: '';
  position: absolute;
  top: 0;
  left: -120%;
  width: 60%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
  z-index: -1;
}
.btn-primary:hover::before, .btn-accent:hover::before {
  left: 140%;
}

.btn-primary {
  background: var(--grad-primary);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(var(--secondary-rgb), 0.45), var(--glow-shadow);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--grad-primary);
  border-color: transparent;
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 8px 22px rgba(var(--primary-rgb), 0.35);
}

.btn-accent {
  background: var(--grad-gold);
  color: #3a2600;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(var(--accent-rgb), 0.4);
}

.btn-accent:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(var(--accent-rgb), 0.55);
}

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  width: 0%;
  z-index: 1000;
  transition: width 0.1s ease-out;
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background-color: var(--primary);
  color: var(--white);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 99;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--secondary);
  transform: translateY(-3px);
}

/* ==========================================================================
   5. Header / Navbar
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background-color: transparent;
  display: flex;
  align-items: center;
  z-index: 900;
  transition: background-color var(--transition-normal), 
              box-shadow var(--transition-normal), 
              height var(--transition-normal),
              border-color var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.header.sticky {
  height: 70px;
  background-color: var(--navbar-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--navbar-border);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  height: 48px;
  width: auto;
  transition: height var(--transition-normal);
}

.header.sticky .logo-img {
  height: 38px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--primary);
  line-height: 1.2;
}

body.dark-mode .brand-name {
  color: var(--white);
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Navigation Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-primary);
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: width var(--transition-fast);
  border-radius: 2px;
}

body.dark-mode .nav-link::after {
  background-color: var(--secondary);
}

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

body.dark-mode .nav-link:hover {
  color: var(--secondary);
}

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

.nav-link.active {
  color: var(--primary);
}

body.dark-mode .nav-link.active {
  color: var(--secondary);
}

.nav-link.active::after {
  width: 100%;
}

/* Theme Controls & Toggle */
.controls-container {
  display: flex;
  align-items: center;
  gap: 16px;
}

.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: transform var(--transition-fast), background-color var(--transition-normal);
}

.theme-toggle-btn:hover {
  transform: rotate(15deg) scale(1.05);
  background-color: var(--card-border);
}

.theme-toggle-btn svg {
  width: 20px;
  height: 20px;
}

/* Hamburger Menu Icon */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  z-index: 999;
}

.hamburger span {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--transition-normal);
  border-radius: 1px;
}

/* Hamburger States */
.hamburger.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.hamburger.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================================================
   6. Hero Section
   ========================================================================== */
.hero {
  min-height: 100vh;
  padding-top: calc(var(--nav-height) + 40px);
  display: flex;
  align-items: center;
  background: radial-gradient(ellipse at 72% 28%, rgba(var(--secondary-rgb), 0.08) 0%, transparent 55%),
              radial-gradient(ellipse at 8% 85%, rgba(var(--primary-rgb), 0.08) 0%, transparent 55%);
  transition: background var(--transition-normal);
  position: relative;
  overflow: hidden;
}

body.dark-mode .hero {
  background: radial-gradient(ellipse at 72% 28%, rgba(var(--secondary-rgb), 0.14) 0%, transparent 55%),
              radial-gradient(ellipse at 8% 85%, rgba(var(--primary-rgb), 0.16) 0%, transparent 55%);
}

/* Interactive circuit-board canvas — fixed behind the WHOLE page */
.circuit-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* Chip-glow accent sweeping across the hero */
.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 70% 30%, rgba(var(--glow-rgb), 0.06) 0%, transparent 45%);
  pointer-events: none;
  z-index: 1;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 40px;
  width: 100%;
}

.hero-content {
  z-index: 10;
}

.hero-subtitle-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(var(--primary-rgb), 0.08);
  border: 1px solid rgba(var(--secondary-rgb), 0.35);
  color: var(--primary);
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 24px;
  box-shadow: inset 0 0 0 1px rgba(var(--secondary-rgb), 0.05), 0 0 18px rgba(var(--secondary-rgb), 0.12);
}

.hero-subtitle-badge::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(var(--accent-rgb), 0.9);
  animation: pulse-dot 1.8s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

body.dark-mode .hero-subtitle-badge {
  background-color: rgba(var(--secondary-rgb), 0.1);
  border-color: rgba(var(--secondary-rgb), 0.3);
  color: var(--secondary);
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.hero h1 span.chapter-text {
  display: block;
  background: var(--grad-chip);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--primary);
}

body.dark-mode .hero h1 span.chapter-text {
  background: linear-gradient(135deg, #2E8BE6 0%, #35E4FF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-typing-container {
  font-family: 'Poppins', sans-serif;
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 24px;
  min-height: 2.2rem;
}

.hero-typing-container span.typed-text {
  color: var(--primary);
  font-weight: 700;
}

body.dark-mode .hero-typing-container span.typed-text {
  color: var(--secondary);
}

.hero-typing-container span.cursor {
  display: inline-block;
  background-color: var(--text-primary);
  margin-left: 2px;
  width: 3px;
  animation: blink 0.8s infinite;
}

.hero-desc {
  font-size: 1.15rem;
  margin-bottom: 40px;
  color: var(--text-secondary);
  max-width: 580px;
}

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

/* Hero Logo Area */
.hero-image-area {
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  position: relative;
}

.hero-logo-wrapper {
  position: relative;
  background-color: var(--white);
  border-radius: 24px;
  padding: 30px;
  box-shadow: var(--shadow-lg), 0 0 45px rgba(var(--secondary-rgb), 0.25);
  border: 1px solid var(--card-border);
  animation: float 6s ease-in-out infinite;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
}

body.dark-mode .hero-logo-wrapper {
  background-color: var(--bg-secondary);
  box-shadow: var(--shadow-lg), 0 0 55px rgba(var(--glow-rgb), 0.3);
}

/* Rotating conic "chip halo" glow */
.hero-logo-wrapper::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 27px;
  padding: 3px;
  background: conic-gradient(from 0deg, transparent 0deg, var(--secondary) 90deg, var(--accent) 180deg, var(--primary) 270deg, transparent 360deg);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: spin 8s linear infinite;
  opacity: 0.9;
  pointer-events: none;
}

.hero-logo-wrapper::before {
  content: '';
  position: absolute;
  top: -15px;
  left: -15px;
  right: -15px;
  bottom: -15px;
  border-radius: 32px;
  border: 2px dashed var(--primary);
  opacity: 0.25;
  animation: spin 45s linear infinite;
}

body.dark-mode .hero-logo-wrapper::before {
  border-color: var(--secondary);
}

.hero-logo {
  max-width: 240px;
  width: 100%;
  height: auto;
}

/* Animations for Hero */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

@keyframes spin {
  100% { transform: rotate(360deg); }
}

/* ==========================================================================
   7. About Section & Statistics Counter
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-text h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: var(--primary);
}

body.dark-mode .about-text h3 {
  color: var(--secondary);
}

.about-text p {
  margin-bottom: 20px;
  font-size: 1.05rem;
}

.about-focus-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.tag {
  background-color: var(--bg-secondary);
  border: 1px solid var(--card-border);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

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

body.dark-mode .tag:hover {
  background-color: var(--secondary);
}

.tag svg {
  width: 16px;
  height: 16px;
  stroke-width: 2px;
}

/* Stats Counter Area */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.stat-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 30px 20px;
  border-radius: var(--border-radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

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

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: rgba(0, 98, 155, 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

body.dark-mode .stat-icon {
  background-color: rgba(0, 180, 216, 0.1);
  color: var(--secondary);
}

.stat-number {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  font-family: 'Poppins', sans-serif;
}

.stat-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* Vision & Mission Cards */
.vision-mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-top: 60px;
}

.vision-mission-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 40px;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.vision-mission-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background-color: var(--primary);
}

body.dark-mode .vision-mission-card::before {
  background-color: var(--secondary);
}

.vision-mission-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.vision-mission-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.vision-mission-header svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

body.dark-mode .vision-mission-header svg {
  color: var(--secondary);
}

.vision-mission-card h4 {
  font-size: 1.5rem;
}

/* ==========================================================================
   8. Executive Committee
   ========================================================================== */
.committee-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  margin-top: 40px;
}

.member-card {
  flex: 1 1 250px;
  max-width: 280px;
  width: 100%;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  text-align: center;
  position: relative;
}

.member-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--secondary);
}

.member-image-wrapper {
  width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
  position: relative;
  background-color: var(--bg-tertiary);
}

.member-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform var(--transition-slow);
}

/* These portraits sit high in frame — focus the crop upward so faces are centred */
.member-img[alt="Swadhin Roul"] {
  object-position: center 20%;
}

.member-img[alt="Seikh Mustakim"] {
  object-position: center 12%;
}

.member-img[alt="Dr. Suryalok Dash"] {
  object-position: center 12%;
}

.member-card:hover .member-img {
  transform: scale(1.08);
}

.member-linkedin-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 98, 155, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  transition: opacity var(--transition-normal);
  backdrop-filter: blur(4px);
}

.member-card:hover .member-linkedin-overlay {
  opacity: 1;
}

.member-linkedin-link {
  width: 44px;
  height: 44px;
  background-color: var(--white);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  transform: translateY(20px);
  transition: all var(--transition-normal);
}

.member-card:hover .member-linkedin-link {
  transform: translateY(0);
}

.member-linkedin-link:hover {
  background-color: var(--secondary);
  color: var(--white);
}

.member-info {
  padding: 24px;
}

.member-name {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.member-role {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

body.dark-mode .member-role {
  color: var(--secondary);
}

/* ==========================================================================
   9. Activities Section
   ========================================================================== */
.activities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.activity-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 40px 30px;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal), border-color var(--transition-normal), transform var(--transition-normal);
  position: relative;
  overflow: hidden;
}

/* Glowing circuit top-edge that lights up on hover */
.activity-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
  box-shadow: 0 0 12px rgba(var(--secondary-rgb), 0.7);
}

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

.activity-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, transparent 50%, var(--primary-glow) 50%);
  border-radius: 0 var(--border-radius-md) 0 0;
  transition: var(--transition-normal);
}

.activity-card:hover::after {
  background: linear-gradient(135deg, transparent 50%, var(--secondary) 50%);
}

.activity-card:hover {
  transform: translateY(-5px) scale(1.01);
  box-shadow: var(--shadow-hover);
  border-color: var(--secondary);
}

.activity-icon-box {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius-sm);
  background-color: rgba(var(--primary-rgb), 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: all var(--transition-normal);
}

body.dark-mode .activity-icon-box {
  background-color: rgba(var(--secondary-rgb), 0.12);
  color: var(--secondary);
}

.activity-card:hover .activity-icon-box {
  background: var(--grad-primary);
  color: var(--white);
  transform: scale(1.08) rotate(-4deg);
  box-shadow: var(--glow-shadow);
}

body.dark-mode .activity-card:hover .activity-icon-box {
  background-color: var(--secondary);
}

.activity-card h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.activity-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   10. Gallery Section
   ========================================================================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.gallery-item {
  position: relative;
  aspect-ratio: 4/3;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  border: 1px solid var(--card-border);
}

.gallery-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover .gallery-thumb {
  transform: scale(1.05);
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.9) 0%, rgba(0, 0, 0, 0) 65%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  transition: all var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
  background: linear-gradient(to top, rgba(0, 98, 155, 0.95) 0%, rgba(0, 0, 0, 0.15) 100%);
}

.gallery-overlay svg {
  width: 24px;
  height: 24px;
  color: var(--white);
  margin-bottom: 12px;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-normal);
}

.gallery-item:hover .gallery-overlay svg {
  opacity: 1;
  transform: translateY(0);
}

.gallery-title {
  color: var(--white);
  font-family: 'Poppins', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.3;
}

.gallery-cat {
  color: var(--secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

/* Lightbox Modal */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  backdrop-filter: blur(10px);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  position: relative;
  max-width: 80%;
  max-height: 80%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 70vh;
  border-radius: var(--border-radius-sm);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  border: 2px solid rgba(255, 255, 255, 0.1);
  cursor: grab;
  user-select: none;
  touch-action: pan-y; /* keep vertical scroll, let horizontal swipes reach our handler */
}

.lightbox-img:active {
  cursor: grabbing;
}

.lightbox-caption {
  color: var(--white);
  margin-top: 16px;
  font-family: 'Poppins', sans-serif;
  font-size: 1.2rem;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  color: var(--white);
  font-size: 2rem;
  transition: color var(--transition-fast);
}

.lightbox-close:hover {
  color: var(--secondary);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--white);
  font-size: 2.5rem;
  width: 54px;
  height: 54px;
  background-color: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 10;
}

.lightbox-nav:hover {
  background: var(--grad-primary);
  border-color: transparent;
  box-shadow: 0 0 20px rgba(var(--secondary-rgb), 0.6);
  transform: translateY(-50%) scale(1.08);
}

.lightbox-prev {
  left: 24px;
}

.lightbox-next {
  right: 24px;
}

/* ==========================================================================
   11. Achievements Section (Timeline)
   ========================================================================== */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 40px auto 0;
  padding: 20px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 31px;
  width: 4px;
  height: 100%;
  background-color: var(--bg-tertiary);
  border-radius: 2px;
}

body.dark-mode .timeline::before {
  background-color: rgba(255, 255, 255, 0.1);
}

.timeline-item {
  position: relative;
  margin-bottom: 50px;
  padding-left: 80px;
}

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

.timeline-icon {
  position: absolute;
  left: 15px;
  top: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  box-shadow: 0 0 0 4px var(--bg-primary);
  transition: all var(--transition-normal);
}

body.dark-mode .timeline-icon {
  background-color: var(--secondary);
}

.timeline-item:hover .timeline-icon {
  transform: scale(1.1);
  box-shadow: 0 0 0 6px var(--primary-glow);
}

.timeline-content {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 30px;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.timeline-content:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
  border-color: var(--secondary);
}

.timeline-date {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  color: var(--primary);
  font-size: 0.95rem;
  margin-bottom: 8px;
  display: block;
}

body.dark-mode .timeline-date {
  color: var(--secondary);
}

.timeline-content h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Desktop Centered Timeline styling override */
@media (min-width: 768px) {
  .timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }
  
  .timeline-item {
    width: 50%;
    padding-left: 0;
    margin-bottom: 60px;
  }
  
  .timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 40px;
    text-align: right;
  }
  
  .timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 40px;
  }
  
  .timeline-icon {
    left: auto;
    top: 5px;
    box-shadow: 0 0 0 6px var(--bg-primary);
  }
  
  .timeline-item:nth-child(odd) .timeline-icon {
    right: -18px;
  }
  
  .timeline-item:nth-child(even) .timeline-icon {
    left: -18px;
  }
  
  .timeline-item:hover .timeline-icon {
    box-shadow: 0 0 0 8px var(--primary-glow);
  }
}

/* ==========================================================================
   12. Join IEEE Section
   ========================================================================== */
.join-section {
  background-color: var(--primary);
  color: var(--white);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius-lg);
  margin: 0 24px;
}

body.dark-mode .join-section {
  background-color: var(--bg-secondary);
  border: 1px solid var(--card-border);
}

.join-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 10% 10%, rgba(255, 255, 255, 0.08) 0%, transparent 40%),
              radial-gradient(circle at 90% 90%, rgba(0, 180, 216, 0.15) 0%, transparent 40%);
  pointer-events: none;
}

.join-content {
  max-width: 750px;
  margin: 0 auto;
  position: relative;
  z-index: 10;
}

.join-content h2 {
  font-size: 2.5rem;
  color: var(--white);
  margin-bottom: 20px;
}

.join-content p {
  font-size: 1.15rem;
  margin-bottom: 40px;
  opacity: 0.9;
}

.join-benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
  text-align: left;
}

.benefit-item {
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px;
  border-radius: var(--border-radius-md);
  transition: transform var(--transition-normal);
}

.benefit-item:hover {
  transform: translateY(-4px);
  background-color: rgba(255, 255, 255, 0.1);
}

.benefit-icon {
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--secondary);
}

.benefit-item h4 {
  font-size: 1.1rem;
  color: var(--white);
  margin-bottom: 8px;
}

.benefit-item p {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-bottom: 0;
}

/* ==========================================================================
   13. Contact Section
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  align-items: stretch;
}

.contact-info-container {
  display: contents;
}

.contact-method {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-lg);
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.contact-method:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--secondary);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background-color: rgba(0, 98, 155, 0.08);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

body.dark-mode .contact-icon {
  background-color: rgba(0, 180, 216, 0.1);
  color: var(--secondary);
}

.contact-details {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.contact-details h3 {
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.contact-details p {
  font-size: 0.95rem;
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 12px;
  justify-content: center;
}

.social-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

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

body.dark-mode .social-btn:hover {
  background-color: var(--secondary);
}

/* Custom interactive Contact Form card */
.contact-form-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 40px;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
}

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--border-radius-sm);
  background-color: var(--bg-secondary);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
}

body.dark-mode .form-control:focus {
  border-color: var(--secondary);
}

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

/* ==========================================================================
   14. Footer
   ========================================================================== */
.footer {
  background-color: var(--dark-gray);
  color: #9CA3AF;
  padding: 80px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

body.dark-mode .footer {
  background-color: #0B0F19;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 50px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-logo {
  height: 60px;
  width: auto;
  align-self: flex-start;
}

.footer-brand p {
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-links-title {
  color: var(--white);
  font-size: 1.15rem;
  margin-bottom: 24px;
  position: relative;
}

.footer-links-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 30px;
  height: 2px;
  background-color: var(--primary);
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.85rem;
}

.footer-socials {
  display: flex;
  gap: 16px;
}

.footer-social-link {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.05);
  color: #9CA3AF;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.footer-social-link:hover {
  background-color: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

/* ==========================================================================
   15. Animations & Effects (Intersection Observer / Reveal)
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Delayed reveals for grids */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Image Lazy Loading effects */
.lazy-img {
  filter: blur(10px);
  transition: filter var(--transition-slow) ease-in-out;
}

.lazy-img.loaded {
  filter: blur(0);
}

/* ==========================================================================
   16. Responsive Media Queries
   ========================================================================== */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 3rem;
  }
}

@media (max-width: 991px) {
  .section {
    padding: 80px 0;
  }
  
  .hero {
    padding-top: calc(var(--nav-height) + 20px);
  }
  
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 50px;
  }
  
  .hero-content {
    order: 1;
  }
  
  .hero-image-area {
    order: 2;
  }
  
  .hero-desc {
    margin: 0 auto 40px;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .stats-grid {
    order: 2;
  }
  
  .about-text {
    order: 1;
    text-align: center;
  }
  
  .about-focus-tags {
    justify-content: center;
  }
  
  .vision-mission-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  
  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  /* Navigation mobile menu styles */
  .hamburger {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: -100%;
    width: 100%;
    height: calc(100vh - var(--nav-height));
    background-color: var(--navbar-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 40px 24px;
    align-items: center;
    justify-content: flex-start;
    gap: 24px;
    transition: left var(--transition-normal);
    border-top: 1px solid var(--navbar-border);
    overflow-y: auto;
  }
  
  .nav-menu.open {
    left: 0;
  }
  
  .header.sticky .nav-menu {
    top: 70px;
    height: calc(100vh - 70px);
  }
  
  .hero h1 {
    font-size: 2.25rem;
  }
  
  .hero-logo-wrapper {
    padding: 20px;
  }
  
  .hero-logo {
    max-width: 160px;
  }
  
  .section-header h2 {
    font-size: 1.8rem;
  }
  
  .lightbox-content {
    max-width: 95%;
  }
  
  .lightbox-nav {
    width: 42px;
    height: 42px;
    font-size: 1.8rem;
  }

  .lightbox-prev {
    left: 10px;
  }

  .lightbox-next {
    right: 10px;
  }
}

@media (max-width: 576px) {
  .footer-top {
    grid-template-columns: 1fr;
  }
  
  .footer-brand {
    grid-column: span 1;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .join-section {
    margin: 0;
    border-radius: 0;
  }
  
  .contact-form-card {
    padding: 24px;
  }
}

/* ==========================================================================
   14. Associated Organizations
   ========================================================================== */
.associates-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
}

@media (min-width: 1200px) {
  .associates-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
  }
  .associates-grid .associate-card {
    max-width: none;
  }
}

.associate-card {
  flex: 1 1 180px;
  max-width: 220px;
  width: 100%;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-md);
  padding: 24px 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

.associate-logo-wrapper {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.associate-logo {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  filter: grayscale(20%);
  transition: filter var(--transition-normal);
}

.associate-card:hover .associate-logo {
  filter: grayscale(0%);
}

.associate-name {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.associate-desc {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.associate-logo.stb-logo-fix {
  transform: scale(2.2);
}

/* ==========================================================================
   15. New About Section Layout
   ========================================================================== */
.about-new-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: start;
}

.about-editorial {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.about-badge {
  background-color: rgba(0, 98, 155, 0.1);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  display: inline-block;
  margin-bottom: 20px;
}

body.dark-mode .about-badge {
  background-color: rgba(14, 165, 233, 0.15);
  color: var(--secondary);
}

.about-editorial h3 {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.about-lead {
  font-size: 1.15rem;
  line-height: 1.6;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 15px;
}

.focus-tags-container {
  margin-top: 20px;
  width: 100%;
}

.focus-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: block;
  margin-bottom: 12px;
}

.about-statements-stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.statement-panel {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-md);
  padding: 24px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.statement-panel:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

body.dark-mode .statement-panel:hover {
  border-color: var(--secondary);
}

.statement-icon-box {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.3rem;
}

.vision-theme .statement-icon-box {
  background-color: rgba(0, 98, 155, 0.1);
  color: var(--primary);
}

.mission-theme .statement-icon-box {
  background-color: rgba(14, 165, 233, 0.1);
  color: var(--secondary);
}

.interest-theme .statement-icon-box {
  background-color: rgba(79, 70, 229, 0.1);
  color: #4F46E5;
}

body.dark-mode .vision-theme .statement-icon-box {
  background-color: rgba(0, 98, 155, 0.2);
  color: #38bdf8;
}

body.dark-mode .mission-theme .statement-icon-box {
  background-color: rgba(14, 165, 233, 0.2);
  color: var(--secondary);
}

body.dark-mode .interest-theme .statement-icon-box {
  background-color: rgba(99, 102, 241, 0.2);
  color: #818CF8;
}

.statement-content h4 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.statement-content p {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

/* Responsive Overrides for About Grid */
@media (max-width: 992px) {
  .about-new-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 576px) {
  .about-editorial h3 {
    font-size: 1.75rem;
  }
  .statement-panel {
    flex-direction: column;
    gap: 15px;
  }
  .statement-panel:hover {
    transform: translateY(-4px); /* Vertical lift on mobile instead of push */
  }
}

/* ==========================================================================
   16. Gallery Card Slideshow Carousel
   ========================================================================== */
.gallery-carousel-item {
  position: relative;
}

.gallery-slides {
  width: 100%;
  height: 100%;
  position: relative;
}

.gallery-slides .gallery-thumb {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
  object-fit: cover;
  z-index: 1;
}

.gallery-slides .gallery-thumb.active {
  opacity: 1;
  z-index: 2;
}

.gallery-carousel-item .gallery-overlay {
  z-index: 3;
}

.carousel-indicators {
  position: absolute;
  top: 15px;
  right: 15px;
  display: flex;
  gap: 6px;
  z-index: 4;
}

.carousel-indicators .indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.4);
  border: 1px solid rgba(0, 0, 0, 0.15);
  transition: all var(--transition-normal);
}

.carousel-indicators .indicator.active {
  background-color: var(--secondary);
  transform: scale(1.2);
}

.gallery-link-item {
  text-decoration: none !important;
  color: inherit !important;
}

/* ==========================================================================
   Featured Event Section Styles
   ========================================================================== */
.event-banner-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: transform var(--transition-normal), border-color var(--transition-normal);
  padding: 40px;
}

.event-banner-card:hover {
  border-color: var(--secondary);
}

.event-banner-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 40px;
  align-items: center;
}

.event-poster-wrapper {
  position: relative;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--card-border);
}

.event-poster-img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.event-banner-card:hover .event-poster-img {
  transform: scale(1.03);
}

.event-banner-details {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.event-badge {
  background-color: rgba(0, 98, 155, 0.08);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

body.dark-mode .event-badge {
  background-color: rgba(0, 180, 216, 0.15);
  color: var(--secondary);
}

.event-banner-details h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 2rem;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.event-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

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

.event-meta i {
  color: var(--primary);
}

body.dark-mode .event-meta i {
  color: var(--secondary);
}

.event-brief {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.event-focus-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
}

.event-focus-badges span {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 6px 12px;
  border-radius: 4px;
  font-weight: 500;
  border: 1px solid var(--card-border);
}

@media (max-width: 992px) {
  .event-banner-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .event-banner-card {
    padding: 30px 20px;
  }
  
  .event-banner-poster {
    max-width: 400px;
    margin: 0 auto;
    width: 100%;
  }
}

/* ==========================================================================
   FX LAYER — site-wide attractive effects (circuit theme)
   ========================================================================== */

/* Text selection in brand colors */
::selection {
  background: rgba(var(--secondary-rgb), 0.35);
  color: var(--text-primary);
}

/* Custom scrollbar — gradient "data bus" thumb */
::-webkit-scrollbar {
  width: 11px;
}
::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  border-radius: 8px;
  border: 2px solid var(--bg-secondary);
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--secondary), var(--glow));
}

/* Nav links — gradient underline with glow */
.nav-link::after {
  background: var(--grad-primary);
  box-shadow: 0 0 10px rgba(var(--secondary-rgb), 0.7);
}

/* Scroll progress bar — glowing data stream */
.scroll-progress {
  background: linear-gradient(to right, var(--primary), var(--secondary), var(--glow));
  box-shadow: 0 0 12px rgba(var(--glow-rgb), 0.8);
}

/* Section heading underline grows in when the section reveals */
.section-header.reveal h2::after {
  transform: translateX(-50%) scaleX(0);
}
.section-header.reveal.active h2::after {
  animation: underline-grow 0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.25s forwards;
}
@keyframes underline-grow {
  from { transform: translateX(-50%) scaleX(0); }
  to   { transform: translateX(-50%) scaleX(1); }
}
.section-header.reveal h2::before {
  opacity: 0;
}
.section-header.reveal.active h2::before {
  animation: node-pop 0.5s ease 1s forwards;
}
@keyframes node-pop {
  0%   { opacity: 0; transform: translateX(calc(-50% + 42px)) scale(0); }
  70%  { opacity: 1; transform: translateX(calc(-50% + 42px)) scale(1.6); }
  100% { opacity: 1; transform: translateX(calc(-50% + 42px)) scale(1); }
}

/* Cursor-following spotlight on cards (JS sets --mx / --my) */
.fx-spotlight {
  position: relative;
}
.fx-spotlight::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%),
              rgba(var(--secondary-rgb), 0.10), transparent 65%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
  z-index: 1;
}
.fx-spotlight:hover::after {
  opacity: 1;
}
body.dark-mode .fx-spotlight::after {
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%),
              rgba(var(--glow-rgb), 0.12), transparent 65%);
}

/* Gallery — light-beam shine sweep on hover */
.gallery-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -80%;
  width: 50%;
  height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-20deg);
  z-index: 2;
  pointer-events: none;
  transition: left 0.7s ease;
}
.gallery-item:hover::before {
  left: 130%;
}

/* Featured event card — flowing gradient border */
.event-banner-card {
  border: 2px solid transparent;
  background:
    linear-gradient(var(--card-bg), var(--card-bg)) padding-box,
    linear-gradient(120deg, var(--primary), var(--secondary), var(--accent), var(--primary)) border-box;
  background-size: 100% 100%, 300% 300%;
  animation: border-flow 7s linear infinite;
}
@keyframes border-flow {
  0%   { background-position: 0 0, 0% 50%; }
  50%  { background-position: 0 0, 100% 50%; }
  100% { background-position: 0 0, 0% 50%; }
}
.event-banner-card:hover {
  box-shadow: var(--shadow-hover), 0 0 30px rgba(var(--secondary-rgb), 0.25);
}

/* Event badge — gold shimmer */
.event-badge {
  background: var(--grad-gold) !important;
  color: #3a2600 !important;
  box-shadow: 0 0 16px rgba(var(--accent-rgb), 0.5);
  animation: badge-pulse 2.4s ease-in-out infinite;
}
@keyframes badge-pulse {
  0%, 100% { box-shadow: 0 0 10px rgba(var(--accent-rgb), 0.35); }
  50%      { box-shadow: 0 0 22px rgba(var(--accent-rgb), 0.75); }
}

/* Back-to-top — gradient chip with radar pulse ring */
.back-to-top {
  background: var(--grad-primary);
}
.back-to-top.show::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid rgba(var(--secondary-rgb), 0.7);
  animation: radar-ring 2s ease-out infinite;
}
@keyframes radar-ring {
  0%   { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.9); opacity: 0; }
}
.back-to-top:hover {
  background: var(--grad-gold);
  color: #3a2600;
  box-shadow: 0 0 24px rgba(var(--accent-rgb), 0.6);
}

/* Footer — animated circuit power-rail on top edge */
.footer {
  position: relative;
  border-top: none;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), var(--glow), var(--accent), var(--primary), transparent);
  background-size: 200% 100%;
  animation: rail-flow 6s linear infinite;
}
@keyframes rail-flow {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

.footer-social-link:hover {
  transform: translateY(-4px) scale(1.1);
  color: var(--glow);
  text-shadow: 0 0 14px rgba(var(--glow-rgb), 0.8);
}

/* Join section — slow aurora drift */
.join-section::before {
  background: radial-gradient(circle at 10% 10%, rgba(255, 255, 255, 0.08) 0%, transparent 40%),
              radial-gradient(circle at 90% 90%, rgba(var(--glow-rgb), 0.18) 0%, transparent 40%),
              radial-gradient(circle at 60% 20%, rgba(var(--accent-rgb), 0.08) 0%, transparent 35%);
  background-size: 160% 160%;
  animation: aurora-drift 12s ease-in-out infinite alternate;
}
@keyframes aurora-drift {
  from { background-position: 0% 0%; }
  to   { background-position: 100% 100%; }
}

/* Form inputs — glow focus ring */
.form-control:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(var(--secondary-rgb), 0.18), 0 0 14px rgba(var(--secondary-rgb), 0.25);
}

/* Focus tags — light up on hover */
.about-focus-tags .tag {
  transition: all var(--transition-fast);
}
.about-focus-tags .tag:hover {
  background: var(--grad-primary);
  color: var(--white);
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(var(--secondary-rgb), 0.35);
}

/* Associate logos — grayscale to full color + glow */
.associate-logo {
  filter: grayscale(35%);
  transition: filter var(--transition-normal), transform var(--transition-normal);
}
.associate-card:hover .associate-logo {
  filter: grayscale(0%) drop-shadow(0 0 10px rgba(var(--secondary-rgb), 0.5));
  transform: scale(1.08);
}

/* Member role — gold flicker on card hover */
.member-card:hover .member-role {
  color: var(--accent-deep);
  text-shadow: 0 0 12px rgba(var(--accent-rgb), 0.5);
}

/* Button ripple (spawned by effects.js) */
.btn {
  position: relative;
  overflow: hidden;
}
.fx-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: scale(0);
  animation: ripple-out 0.6s ease-out forwards;
  pointer-events: none;
}
@keyframes ripple-out {
  to { transform: scale(3); opacity: 0; }
}

/* Cursor ambient glow (desktop only, injected by effects.js) —
   a soft light that drifts with the pointer; native cursor untouched */
.fx-cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle,
              rgba(var(--secondary-rgb), 0.09) 0%,
              rgba(var(--secondary-rgb), 0.04) 40%,
              transparent 70%);
  pointer-events: none;
  z-index: 9998;
  transition: opacity 0.4s ease;
}

body.dark-mode .fx-cursor-glow {
  background: radial-gradient(circle,
              rgba(var(--glow-rgb), 0.12) 0%,
              rgba(var(--glow-rgb), 0.05) 40%,
              transparent 70%);
}

/* Respect reduced motion — disable decorative animation */
@media (prefers-reduced-motion: reduce) {
  .event-banner-card,
  .footer::before,
  .join-section::before,
  .event-badge,
  .back-to-top.show::before,
  .hero-logo-wrapper::after,
  .hero-logo-wrapper::before,
  .hero-subtitle-badge::before {
    animation: none !important;
  }
  .fx-cursor-glow {
    display: none !important;
  }
}

/* ==========================================================================
   FX LAYER 2 — refinements
   ========================================================================== */

/* Hero headline — slow shimmer across the gradient text */
.hero h1 span.chapter-text {
  background-size: 200% auto;
  animation: text-shimmer 6s ease-in-out infinite alternate;
}
@keyframes text-shimmer {
  from { background-position: 0% center; }
  to   { background-position: 100% center; }
}

/* Sticky header — glowing gradient hairline under the glass */
.header.sticky {
  border-bottom: 1px solid transparent;
  border-image: linear-gradient(90deg, transparent, rgba(var(--secondary-rgb), 0.5), transparent) 1;
}

/* Member & associate cards — same glowing top edge as activity cards */
.member-card::before,
.associate-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
  box-shadow: 0 0 12px rgba(var(--secondary-rgb), 0.7);
  z-index: 2;
}
.member-card:hover::before,
.associate-card:hover::before {
  transform: scaleX(1);
}
.associate-card {
  position: relative;
  overflow: hidden;
}

/* Member photo — soft cyan inner glow on hover */
.member-image-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 0 0 transparent;
  transition: box-shadow var(--transition-normal);
  pointer-events: none;
}
.member-card:hover .member-image-wrapper::after {
  box-shadow: inset 0 -40px 40px -30px rgba(var(--secondary-rgb), 0.45);
}

@media (prefers-reduced-motion: reduce) {
  .hero h1 span.chapter-text {
    animation: none;
  }
}

/* ==========================================================================
   ✦ DESIGN V2 — "Premium Dark-Glass Circuit"
   A classy, editorial redesign layer: display typography, floating glass
   navbar, glassmorphism cards, numbered sections, dot-grid canvas backdrop.
   Overrides earlier rules by cascade; structure untouched.
   ========================================================================== */

/* ---- 1. Design tokens refresh ---- */
:root {
  --border-radius-sm: 12px;
  --border-radius-md: 20px;
  --border-radius-lg: 28px;
  --font-display: 'Space Grotesk', 'Poppins', sans-serif;
  --glass-card-bg: rgba(255, 255, 255, 0.62);
  --glass-card-border: rgba(255, 255, 255, 0.75);
}

body.dark-mode {
  --glass-card-bg: rgba(12, 31, 66, 0.48);
  --glass-card-border: rgba(53, 228, 255, 0.14);
}

/* ---- 2. Typography — editorial display headings ---- */
h1, h2, h3, h4,
.brand-name,
.member-name,
.associate-name {
  font-family: var(--font-display);
}

.hero h1 {
  font-size: clamp(2.9rem, 5.4vw, 4.2rem);
  letter-spacing: -2px;
  line-height: 1.08;
}

.section-header h2 {
  font-size: clamp(2rem, 3.6vw, 2.6rem);
  letter-spacing: -1px;
}

/* ---- 3. Dot-grid backdrop under the circuit canvas ---- */
body {
  background-image: radial-gradient(rgba(var(--primary-rgb), 0.10) 1px, transparent 1.5px);
  background-size: 30px 30px;
}

body.dark-mode {
  background-image: radial-gradient(rgba(var(--glow-rgb), 0.07) 1px, transparent 1.5px);
}

/* ---- 4. Floating glass pill navbar (desktop) ---- */
@media (min-width: 769px) {
  .header {
    top: 14px;
    left: 50%;
    transform: translateX(-50%);
    width: min(1160px, calc(100% - 40px));
    height: 66px;
    border-radius: 999px;
    background-color: var(--glass-bg);
    backdrop-filter: blur(18px) saturate(1.4);
    -webkit-backdrop-filter: blur(18px) saturate(1.4);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px rgba(var(--primary-deep-rgb), 0.10);
    padding: 0 10px;
  }

  .header.sticky {
    height: 62px;
    background-color: var(--navbar-bg);
    border: 1px solid var(--navbar-border);
    border-image: none;
    box-shadow: 0 10px 36px rgba(var(--primary-deep-rgb), 0.16),
                0 0 20px rgba(var(--secondary-rgb), 0.08);
  }
}

/* ---- 6. Glassmorphism cards ---- */
.activity-card,
.member-card,
.associate-card,
.statement-panel,
.contact-form-card,
.contact-method,
.gallery-item {
  background-color: var(--glass-card-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-card-border);
}

body.dark-mode .activity-card,
body.dark-mode .member-card,
body.dark-mode .associate-card,
body.dark-mode .statement-panel,
body.dark-mode .contact-form-card,
body.dark-mode .contact-method {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

/* ---- 7. Pill buttons ---- */
.btn {
  border-radius: 999px;
  padding: 13px 30px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

/* ---- 8. Softer inputs ---- */
.form-control {
  border-radius: 14px;
  background-color: var(--glass-card-bg);
}

/* ---- 9. Reveal upgrade — blur-to-sharp entrance ---- */
.reveal {
  opacity: 0;
  transform: translateY(34px) scale(0.99);
  filter: blur(10px);
  transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.9s cubic-bezier(0.22, 1, 0.36, 1),
              filter 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

/* ---- 10. Footer — deep-navy circuit slab in both themes ---- */
.footer {
  background: linear-gradient(180deg, #081530 0%, #040b1d 100%);
}

body.dark-mode .footer {
  background: linear-gradient(180deg, #071228 0%, #030816 100%);
}

/* ---- 11. Hero badge — glass chip ---- */
.hero-subtitle-badge {
  background-color: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* ---- 12. Section rhythm ---- */
.section {
  padding: 110px 0;
}

/* ---- Reduced motion: skip the blur entrance ---- */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    filter: none;
    transform: none;
    opacity: 1;
    transition: none;
  }
}