/*
 * ISBDAI 2026 - Premium Conference Design System
 * Swiss-inspired minimalist elegance with high-fidelity animations
 */

/* ============================================
   CSS Variables - Premium Color Palette
   ============================================ */
:root {
  /* Primary Colors - Deep, Sophisticated */
  --color-primary: #0f1724;
  --color-primary-light: #1e2a3d;
  --color-primary-dark: #080c12;

  /* Accent - Refined Gold */
  --color-accent: #c9a962;
  --color-accent-light: #dfc78a;
  --color-accent-dark: #a68b42;

  /* Secondary Accent - Elegant Blue */
  --color-secondary: #4a7c9b;
  --color-secondary-light: #6a9cb8;

  /* Neutrals */
  --color-white: #ffffff;
  --color-off-white: #fafbfc;
  --color-cream: #f8f9fa;
  --color-light-gray: #f0f2f5;
  --color-mid-gray: #e4e7eb;
  --color-border: #d1d5db;
  --color-text-muted: #9ca3af;
  --color-text-light: #6b7280;
  --color-text: #4b5563;
  --color-text-dark: #1f2937;

  /* Spacing Scale */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4.5rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.75rem;
  --text-5xl: 3.5rem;
  --text-6xl: 4.5rem;

  /* Line Heights */
  --leading-tight: 1.2;
  --leading-snug: 1.35;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --transition-fast: 150ms var(--ease-out-quart);
  --transition-base: 300ms var(--ease-out-expo);
  --transition-slow: 500ms var(--ease-out-expo);
  --transition-slower: 700ms var(--ease-out-expo);

  /* Shadows - Layered for depth */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-base: 0 4px 6px rgba(0, 0, 0, 0.04), 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.06), 0 4px 8px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.08), 0 8px 16px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 24px 48px rgba(0, 0, 0, 0.1), 0 12px 24px rgba(0, 0, 0, 0.06);
  --shadow-2xl: 0 32px 64px rgba(0, 0, 0, 0.12), 0 16px 32px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 40px rgba(201, 169, 98, 0.15);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.04);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* Container */
  --container-max: 1280px;
  --container-narrow: 900px;
  --container-wide: 1440px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-white);
  overflow-x: hidden;
}

::selection {
  background: var(--color-accent);
  color: var(--color-white);
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 600;
  color: var(--color-text-dark);
  line-height: var(--leading-tight);
  margin: 0;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  margin: 0 0 var(--space-md) 0;
  color: var(--color-text);
}

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

strong { font-weight: 600; }

/* ============================================
   Layout
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.container-wide {
  max-width: var(--container-wide);
}

.section {
  padding: var(--space-4xl) 0;
  position: relative;
}

.section-sm {
  padding: var(--space-3xl) 0;
}

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

.section-dark {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* ============================================
   Header & Navigation - Glass Effect
   ============================================ */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
}

#header.header-scrolled {
  background: rgba(255, 255, 255, 0.95);
  border-bottom-color: var(--color-mid-gray);
  box-shadow: var(--shadow-sm);
}

#header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
  transition: height var(--transition-base);
}

#header.header-scrolled .container {
  height: 72px;
}

/* Logo */
.logo {
  margin-left: var(--space-md);
}

.logo a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  transition: transform var(--transition-fast);
}

.logo a:hover {
  transform: scale(1.02);
}

.logo-img {
  height: 36px;
  width: auto;
  transition: all var(--transition-fast);
}

.logo img {
  height: 36px;
  width: auto;
  transition: all var(--transition-fast);
}

.logo-text {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

#header.header-scrolled .logo img {
  height: 30px;
}

#header.header-scrolled .logo-text {
  color: var(--color-white);
}

/* Desktop Navigation */
.main-nav {
  display: none;
}

@media (min-width: 1024px) {
  .main-nav {
    display: flex;
  }
}

.main-nav,
.main-nav * {
  margin: 0;
  padding: 0;
  list-style: none;
}

.main-nav > ul {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.main-nav > ul > li {
  position: relative;
}

.main-nav a {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.main-nav a:hover::after,
.main-nav .active > a::after {
  width: 100%;
}

.main-nav a:hover,
.main-nav .active > a {
  color: var(--color-text-dark);
}

/* Dropdown */
.main-nav .drop-down > a {
  gap: var(--space-2xs);
}

.main-nav .drop-down > a i {
  font-size: 10px;
  transition: transform var(--transition-fast);
}

.main-nav .drop-down:hover > a i {
  transform: rotate(180deg);
}

.main-nav .drop-down ul {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 240px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-sm);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.main-nav .drop-down:hover > ul {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.main-nav .drop-down ul li {
  display: block;
}

.main-nav .drop-down ul a {
  display: flex;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  border-radius: var(--radius-base);
  transition: all var(--transition-fast);
}

.main-nav .drop-down ul a::after {
  display: none;
}

.main-nav .drop-down ul a:hover {
  background: var(--color-cream);
  color: var(--color-text-dark);
  transform: translateX(4px);
}

/* Mobile Navigation Toggle */
.mobile-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-base);
  transition: background var(--transition-fast);
}

.mobile-nav-toggle:hover {
  background: var(--color-cream);
}

@media (min-width: 1024px) {
  .mobile-nav-toggle {
    display: none;
  }
}

.mobile-nav-toggle i {
  font-size: 22px;
  color: var(--color-text-dark);
}

/* Mobile Navigation */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 300px;
  height: 100%;
  background: var(--color-white);
  z-index: 9999;
  padding: var(--space-2xl) var(--space-lg);
  overflow-y: auto;
  transition: right var(--transition-slow);
  box-shadow: var(--shadow-2xl);
}

.mobile-nav-active .mobile-nav {
  right: 0;
}

.mobile-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-nav > ul > li {
  border-bottom: 1px solid var(--color-light-gray);
}

.mobile-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text-dark);
}

.mobile-nav .drop-down ul {
  display: none;
  padding-left: var(--space-md);
  padding-bottom: var(--space-sm);
}

.mobile-nav .drop-down.active ul {
  display: block;
}

.mobile-nav .drop-down ul a {
  font-size: var(--text-base);
  font-weight: 400;
  color: var(--color-text);
  padding: var(--space-sm) 0;
}

.mobile-nav-overly {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 36, 0.6);
  backdrop-filter: blur(4px);
  z-index: 9998;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.mobile-nav-active .mobile-nav-overly {
  display: block;
  opacity: 1;
}

/* ============================================
   Hero Section - KSEM Conference Style (Wider)
   ============================================ */
#hero {
  position: relative;
  min-height: 450px;
  height: 60vh;
  max-height: 550px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #1a2634;
}

/* Hero Carousel */
.hero-carousel {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.hero-slide.active {
  opacity: 1;
}

.hero-carousel .hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(15, 23, 36, 0.4) 0%,
    rgba(15, 23, 36, 0.5) 50%,
    rgba(15, 23, 36, 0.6) 100%
  );
  z-index: 1;
}

@media (max-width: 768px) {
  #hero {
    min-height: 350px;
    height: auto;
    padding: 120px 0 60px;
  }
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(15, 23, 36, 0.3) 0%,
    rgba(15, 23, 36, 0.4) 50%,
    rgba(15, 23, 36, 0.5) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: left;
  padding-top: 60px;
}

.hero-content .container {
  max-width: 1200px;
}

.hero-badge {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: var(--space-md);
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease-out-expo) 0.2s forwards;
}

.hero-title {
  font-family: var(--font-primary);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 600;
  color: var(--color-white);
  line-height: 1.25;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease-out-expo) 0.3s forwards;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-title em {
  font-family: 'Playfair Display', Georgia, serif;
  font-style: italic;
  font-weight: 500;
}

.hero-subtitle {
  font-size: var(--text-lg);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-md);
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease-out-expo) 0.4s forwards;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
}

.hero-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease-out-expo) 0.5s forwards;
}

.hero-location {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.9);
  font-weight: 400;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
}

.hero-date {
  font-size: var(--text-base);
  color: var(--color-accent-light);
  font-weight: 500;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
}

/* Hero Scroll Indicator */
.hero-scroll {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  opacity: 0;
  animation: fadeIn 1s var(--ease-out-expo) 1s forwards;
}

.hero-scroll a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 24px;
  transition: all var(--transition-fast);
}

.hero-scroll a:hover {
  color: var(--color-white);
  transform: translateY(4px);
}

.hero-scroll i {
  animation: bounce 2s infinite;
}

/* Fallback gradient background if no image */
#hero.no-image {
  background: linear-gradient(135deg, #1a365d 0%, #2d3748 50%, #1a202c 100%);
}

#hero.no-image .hero-overlay {
  display: none;
}

/* ============================================
   Buttons - Premium Feel
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: var(--radius-base);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::before {
  opacity: 1;
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--text-base);
}

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

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

.btn-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

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

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

.btn-accent:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md), var(--shadow-glow);
  color: var(--color-white);
}

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

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

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

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

.btn i {
  font-size: 1em;
  transition: transform var(--transition-fast);
}

.btn:hover i {
  transform: translateX(2px);
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.section-label i {
  font-size: 14px;
}

.section-title {
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.section-dark .section-title {
  color: var(--color-white);
}

.section-desc {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  line-height: var(--leading-relaxed);
}

.section-dark .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   Important Dates - Elegant Cards
   ============================================ */
.dates-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

@media (max-width: 991px) {
  .dates-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575px) {
  .dates-grid {
    grid-template-columns: 1fr;
  }
}

.date-card {
  background: var(--color-white);
  border: 1px solid var(--color-mid-gray);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.date-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-secondary) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.date-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-xl);
  transform: translateY(-8px);
}

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

.date-card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  border-radius: var(--radius-lg);
  background: var(--color-cream);
  color: var(--color-primary);
  font-size: var(--text-xl);
  transition: all var(--transition-base);
}

.date-card:hover .date-card-icon {
  background: var(--color-accent);
  color: var(--color-white);
  transform: scale(1.1) rotate(5deg);
}

.date-card-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.date-card-value {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text-dark);
  letter-spacing: -0.01em;
}

/* ============================================
   About Section
   ============================================ */
.about-content {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

@media (max-width: 991px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

.about-text {
  max-width: 540px;
}

.about-lead {
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-text-dark);
  margin-bottom: var(--space-md);
  line-height: var(--leading-relaxed);
}

.about-body {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: var(--leading-relaxed);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.stat-card {
  background: var(--color-white);
  border: 1px solid var(--color-mid-gray);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.stat-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.stat-value {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-2xs);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

/* ============================================
   Info Cards (For Authors, Attendees, etc.)
   ============================================ */
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 991px) {
  .info-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575px) {
  .info-grid {
    grid-template-columns: 1fr;
  }
}

.info-card {
  background: var(--color-white);
  border: 1px solid var(--color-mid-gray);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.info-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: linear-gradient(180deg, transparent 60%, var(--color-cream) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.info-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-xl);
  transform: translateY(-8px);
}

.info-card:hover::after {
  opacity: 1;
}

.info-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  position: relative;
  z-index: 1;
}

.info-card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--color-cream);
  color: var(--color-primary);
  font-size: var(--text-xl);
  transition: all var(--transition-base);
}

.info-card:hover .info-card-icon {
  background: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.1);
}

.info-card-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-dark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.info-card-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-lg) 0;
  flex: 1;
  position: relative;
  z-index: 1;
}

.info-card-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text);
}

.info-card-list li i {
  color: var(--color-accent);
  font-size: 8px;
  margin-top: 6px;
  flex-shrink: 0;
}

.info-card .btn {
  position: relative;
  z-index: 1;
  width: 100%;
  margin-top: auto;
}

/* ============================================
   Publication Info
   ============================================ */
.pub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

@media (max-width: 991px) {
  .pub-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575px) {
  .pub-grid {
    grid-template-columns: 1fr;
  }
}

.pub-card {
  padding: var(--space-lg);
  background: var(--color-white);
  border: 1px solid var(--color-mid-gray);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.pub-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-base);
}

.pub-card-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-base);
  background: var(--color-cream);
  color: var(--color-primary);
  font-size: var(--text-lg);
  margin-bottom: var(--space-md);
}

.pub-card-title {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-dark);
  margin-bottom: var(--space-sm);
}

.pub-card-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pub-card-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.pub-card-list li:last-child {
  margin-bottom: 0;
}

.pub-card-list li i {
  color: var(--color-accent);
  font-size: 8px;
  margin-top: 6px;
}

/* ============================================
   Organizers / Sponsors
   ============================================ */
.sponsors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

@media (max-width: 991px) {
  .sponsors-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 575px) {
  .sponsors-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.sponsor-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  background: var(--color-white);
  border: 1px solid var(--color-mid-gray);
  border-radius: var(--radius-lg);
  min-height: 100px;
  transition: all var(--transition-base);
}

.sponsor-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.sponsor-item img {
  max-width: 120px;
  max-height: 50px;
  width: auto;
  height: auto;
  filter: grayscale(100%);
  opacity: 0.6;
  transition: all var(--transition-base);
}

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

/* ============================================
   Contact Section
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 991px) {
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-white);
  border: 1px solid var(--color-mid-gray);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.contact-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.contact-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--text-lg);
  flex-shrink: 0;
  transition: all var(--transition-base);
}

.contact-item:hover .contact-icon {
  background: var(--color-accent);
  transform: scale(1.1);
}

.contact-content h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: var(--space-xs);
}

.contact-content p {
  font-size: var(--text-sm);
  color: var(--color-text);
  margin: 0;
  line-height: var(--leading-normal);
}

.contact-content a {
  color: var(--color-accent);
  font-weight: 500;
}

.contact-content a:hover {
  color: var(--color-accent-dark);
}

/* ============================================
   Footer - Elegant & Minimal
   ============================================ */
#footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.6);
  padding: var(--space-2xl) 0;
}

#footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer-logo {
  height: 32px;
  filter: brightness(0) invert(1);
  opacity: 0.8;
  margin-bottom: var(--space-md);
}

.footer-copyright {
  font-size: var(--text-sm);
}

.footer-copyright strong {
  color: var(--color-white);
  font-weight: 500;
}

/* ============================================
   Back to Top - Refined
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  width: 48px;
  height: 48px;
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  color: var(--color-primary);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  z-index: 100;
  border: 1px solid var(--color-mid-gray);
}

.back-to-top:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.back-to-top i {
  transition: transform var(--transition-fast);
}

.back-to-top:hover i {
  transform: translateY(-2px);
}

/* ============================================
   Page Header (for inner pages)
   ============================================ */
.page-header {
  background: var(--color-primary);
  padding: calc(var(--space-4xl) + 88px) 0 var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(201, 169, 98, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(74, 124, 155, 0.06) 0%, transparent 50%);
}

/* Page Header Carousel */
.page-header-carousel {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-header-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.page-header-slide.active {
  opacity: 1;
}

.page-header-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(15, 23, 36, 0.5) 0%,
    rgba(15, 23, 36, 0.6) 50%,
    rgba(15, 23, 36, 0.7) 100%
  );
  z-index: 1;
}

.page-header .container {
  position: relative;
  z-index: 2;
}

.page-title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  color: var(--color-white);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.page-subtitle {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.7);
  max-width: 650px;
  margin: 0 auto;
}

.page-content {
  padding: var(--space-3xl) 0;
}

/* ============================================
   Content Sections (for inner pages)
   ============================================ */
.content-block {
  margin-bottom: var(--space-3xl);
}

.content-block:last-child {
  margin-bottom: 0;
}

.content-title {
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-mid-gray);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.content-title i {
  color: var(--color-accent);
}

.content-text {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: var(--leading-relaxed);
}

.content-text p {
  margin-bottom: var(--space-md);
}

/* ============================================
   Committee / Speaker Cards
   ============================================ */
.people-section {
  margin-bottom: var(--space-3xl);
}

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

.people-section-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.people-section-title::before {
  content: '';
  width: 4px;
  height: 24px;
  background: var(--color-accent);
  border-radius: 2px;
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: var(--space-md);
}

@media (max-width: 767px) {
  .people-grid {
    grid-template-columns: 1fr;
  }
}

.person-card {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-white);
  border: 1px solid var(--color-mid-gray);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.person-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.person-photo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-cream);
  transition: all var(--transition-base);
}

.person-card:hover .person-photo {
  transform: scale(1.05);
}

.person-info {
  flex: 1;
  min-width: 0;
}

.person-name {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: 4px;
}

.person-title {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  line-height: var(--leading-normal);
}

.person-affiliation {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
  flex-wrap: wrap;
}

.person-affiliation img {
  height: 55px;
  width: auto;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.person-card:hover .person-affiliation img {
  opacity: 1;
}

/* Person Role Style */
.person-role {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

/* Country/Region Label Style */
.country-label {
  color: var(--color-secondary);
  font-weight: 500;
  font-size: var(--text-sm);
}

/* Keynote Speaker (larger cards) */
.keynote-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: var(--space-lg);
}

@media (max-width: 767px) {
  .keynote-grid {
    grid-template-columns: 1fr;
  }
}

.keynote-card {
  padding: var(--space-xl);
  flex-direction: column;
  text-align: center;
}

.keynote-card .person-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto var(--space-md);
}

.keynote-card .person-name {
  font-size: var(--text-lg);
}

.keynote-card .person-affiliation {
  justify-content: center;
}

.keynote-card .person-affiliation img {
  height: 80px;
}

/* ============================================
   Testimonials / Speaker Carousel
   ============================================ */
.testimonials-section {
  background: var(--color-cream);
}

.testimonial-item {
  text-align: center;
  padding: var(--space-xl);
}

.testimonial-img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin: 0 auto var(--space-md);
  object-fit: cover;
  border: 4px solid var(--color-white);
  box-shadow: var(--shadow-lg);
}

.testimonial-item h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: var(--space-xs);
}

.testimonial-item p {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin: 0;
}

/* Owl Carousel Styling */
.owl-carousel .owl-stage {
  display: flex;
  align-items: stretch;
}

.owl-carousel .owl-item {
  display: flex;
}

.owl-dots {
  text-align: center;
  margin-top: var(--space-xl);
}

.owl-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin: 0 6px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  transition: all var(--transition-base);
  cursor: pointer;
}

.owl-dot.active {
  background: var(--color-accent);
  width: 32px;
}

.owl-dot:hover {
  background: var(--color-accent-light);
}

/* ============================================
   Tables
   ============================================ */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-lg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.data-table th,
.data-table td {
  padding: var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-mid-gray);
}

.data-table th {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-dark);
  background: var(--color-cream);
}

.data-table td {
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-white);
}

.data-table tbody tr {
  transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
  background: var(--color-off-white);
}

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

/* ============================================
   Lists - Elegant Styling
   ============================================ */
.styled-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.styled-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: var(--leading-normal);
}

.styled-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  margin-top: 8px;
  flex-shrink: 0;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-dark);
  margin-bottom: var(--space-xs);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(201, 169, 98, 0.1);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0 !important; }
.mb-sm { margin-bottom: var(--space-sm) !important; }
.mb-md { margin-bottom: var(--space-md) !important; }
.mb-lg { margin-bottom: var(--space-lg) !important; }
.mb-xl { margin-bottom: var(--space-xl) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-sm { margin-top: var(--space-sm) !important; }
.mt-md { margin-top: var(--space-md) !important; }
.mt-lg { margin-top: var(--space-lg) !important; }
.mt-xl { margin-top: var(--space-xl) !important; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ============================================
   Animations - High Fidelity
   ============================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-8px);
  }
  60% {
    transform: translateY(-4px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

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

/* WOW.js Animation Classes */
.wow {
  visibility: hidden;
}

.animated {
  animation-duration: 0.8s;
  animation-fill-mode: both;
  animation-timing-function: var(--ease-out-expo);
}

.animated.fadeIn { animation-name: fadeIn; }
.animated.fadeInUp { animation-name: fadeInUp; }
.animated.fadeInDown { animation-name: fadeInDown; }
.animated.fadeInLeft { animation-name: fadeInLeft; }
.animated.fadeInRight { animation-name: fadeInRight; }
.animated.scaleIn { animation-name: scaleIn; }

/* Staggered animation delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  #header,
  .back-to-top,
  .mobile-nav-toggle,
  .scroll-indicator {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }

  .section {
    padding: 20pt 0;
    page-break-inside: avoid;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}

/* ============================================
   Legacy Support Classes (Bootstrap compat)
   ============================================ */
.clearfix::after {
  content: '';
  display: table;
  clear: both;
}

.img-fluid {
  max-width: 100%;
  height: auto;
}

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }

@media (min-width: 992px) {
  .d-lg-block { display: block !important; }
  .d-lg-none { display: none !important; }
}

.float-left { float: left; }
.float-right { float: right; }

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 calc(-1 * var(--space-sm));
}

.row > * {
  padding: 0 var(--space-sm);
}

.col-lg-3, .col-lg-4, .col-lg-6, .col-lg-8, .col-lg-12,
.col-md-4, .col-md-6 {
  width: 100%;
}

@media (min-width: 768px) {
  .col-md-4 { width: 33.333%; }
  .col-md-6 { width: 50%; }
}

@media (min-width: 992px) {
  .col-lg-3 { width: 25%; }
  .col-lg-4 { width: 33.333%; }
  .col-lg-6 { width: 50%; }
  .col-lg-8 { width: 66.666%; }
  .col-lg-12 { width: 100%; }
}

.justify-content-center { justify-content: center; }
.align-items-center { align-items: center; }

/* ============================================
   KSEM Conference Style - Additional Styles
   ============================================ */

/* Hero Content Centered */
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding-top: 80px;
}

.hero-title {
  font-family: var(--font-primary);
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  font-weight: 500;
  color: var(--color-white);
  line-height: 1.3;
  margin-bottom: var(--space-sm);
  letter-spacing: 0;
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease-out-expo) 0.3s forwards;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
}

.hero-title em {
  font-family: 'Playfair Display', Georgia, serif;
  font-style: italic;
  font-weight: 400;
}

.hero-subtitle {
  font-size: var(--text-base);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-sm);
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease-out-expo) 0.4s forwards;
}

.hero-info {
  display: flex;
  flex-direction: row;
  justify-content: center;
  gap: var(--space-sm);
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease-out-expo) 0.5s forwards;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(4px);
  padding: 8px 16px;
  border-radius: 30px;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.95);
  font-weight: 400;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-badge i {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.8);
}

.hero-date,
.hero-location {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.85);
  font-weight: 400;
}

/* Hero Dots Indicator */
.hero-dots {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  gap: 8px;
  opacity: 0;
  animation: fadeIn 1s var(--ease-out-expo) 1s forwards;
}

.hero-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hero-dots .dot.active {
  background: var(--color-white);
}

.hero-dots .dot:hover {
  background: rgba(255, 255, 255, 0.7);
}

/* Compact Section Styles */
.section-compact {
  padding: var(--space-xl) 0;
  position: relative;
}

.section-header-compact {
  margin-bottom: var(--space-lg);
}

.section-title-sm {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text-dark);
  text-align: center;
}

/* Welcome + Notifications Grid (KSEM Style) */
.welcome-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-xl);
  align-items: start;
}

@media (max-width: 991px) {
  .welcome-grid {
    grid-template-columns: 1fr;
  }
}

.welcome-content {
  background: var(--color-white);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.welcome-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.title-accent {
  width: 4px;
  height: 24px;
  background: var(--color-secondary);
  border-radius: 2px;
}

.welcome-content p {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.welcome-note {
  color: var(--color-secondary);
  font-weight: 500;
}

.welcome-note i {
  margin-right: var(--space-xs);
}

.welcome-link {
  font-size: var(--text-sm);
}

.welcome-link a {
  color: var(--color-secondary);
  text-decoration: underline;
}

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

/* Notifications Box */
.notifications-box {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.notifications-title {
  background: var(--color-secondary);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-base);
  font-weight: 600;
  margin: 0;
}

.notifications-content {
  padding: var(--space-md);
}

.dates-heading {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: var(--space-sm);
}

.dates-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.dates-list li {
  font-size: var(--text-sm);
  color: var(--color-text);
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--color-light-gray);
  line-height: 1.5;
}

.dates-list li:last-child {
  border-bottom: none;
}

.dates-list li strong {
  color: var(--color-text-dark);
}

.dates-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-secondary);
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-fast);
}

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

.dates-link i {
  font-size: var(--text-xs);
}

/* Quick Links Grid */
.quicklinks-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-sm);
}

@media (max-width: 991px) {
  .quicklinks-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 575px) {
  .quicklinks-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.quicklink-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md);
  background: var(--color-white);
  border-radius: var(--radius-base);
  text-align: center;
  transition: all var(--transition-base);
  border: 1px solid var(--color-mid-gray);
}

.quicklink-item:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.quicklink-item i {
  font-size: var(--text-xl);
  color: var(--color-secondary);
}

.quicklink-item span {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-dark);
}

/* Compact Sponsors Grid */
.sponsors-grid-compact {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
  align-items: center;
}

.sponsor-item-sm {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm);
  transition: all var(--transition-base);
}

.sponsor-item-sm img {
  max-width: 140px;
  max-height: 50px;
  width: auto;
  height: auto;
  filter: grayscale(50%);
  opacity: 0.7;
  transition: all var(--transition-base);
}

.sponsor-item-sm:hover img {
  filter: grayscale(0%);
  opacity: 1;
}

/* Compact Publication Grid */
.pub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

@media (max-width: 991px) {
  .pub-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575px) {
  .pub-grid {
    grid-template-columns: 1fr;
  }
}

.pub-card {
  padding: var(--space-md);
  background: var(--color-white);
  border: 1px solid var(--color-mid-gray);
  border-radius: var(--radius-base);
  transition: all var(--transition-base);
}

.pub-card:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-base);
}

.pub-card-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-cream);
  color: var(--color-secondary);
  font-size: var(--text-base);
  margin-bottom: var(--space-sm);
}

.pub-card-title {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-dark);
  margin-bottom: var(--space-xs);
}

.pub-card-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pub-card-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  font-size: var(--text-xs);
  color: var(--color-text);
  margin-bottom: var(--space-2xs);
}

.pub-card-list li:last-child {
  margin-bottom: 0;
}

.pub-card-list li i {
  color: var(--color-secondary);
  font-size: 6px;
  margin-top: 5px;
}

/* Footer Compact */
#footer {
  background: var(--color-light-gray);
  color: var(--color-text-light);
  padding: var(--space-md) 0;
  text-align: center;
}

.footer-copyright {
  font-size: var(--text-sm);
  margin: 0;
}

/* ============================================
   Publication Vertical Layout
   ============================================ */
.pub-list-vertical {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 800px;
  margin: 0 auto;
}

.pub-item-vertical {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-white);
  border: 1px solid var(--color-mid-gray);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.pub-item-vertical:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-md);
}

.pub-item-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-base);
  background: var(--color-cream);
  color: var(--color-secondary);
  font-size: var(--text-xl);
  flex-shrink: 0;
}

.pub-item-vertical:hover .pub-item-icon {
  background: var(--color-secondary);
  color: var(--color-white);
}

.pub-item-content {
  flex: 1;
}

.pub-item-title {
  font-size: var(--text-base);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-dark);
  margin-bottom: var(--space-xs);
}

.pub-item-desc {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: var(--leading-relaxed);
  margin: 0;
}

.pub-item-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pub-item-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.pub-item-list li:last-child {
  margin-bottom: 0;
}

.pub-item-list li i {
  color: var(--color-secondary);
  font-size: 6px;
  margin-top: 7px;
  flex-shrink: 0;
}