/* ========================================
   JNSA 25th Anniversary - Nordic Design
   動きのある北欧風デザイン
======================================== */

/* === CSS Variables === */
:root {
  --nordic-forest: #4A7B9D;
  --nordic-sage: #7FB3D3;
  --nordic-cream: #F5F9FC;
  --nordic-sand: #E1EEF6;
  --nordic-gold: #5BA3C6;
  --nordic-terracotta: #89CFF0;
  --nordic-charcoal: #2C3E50;
  --nordic-white: #FFFFFF;
  --shadow-soft: 0 8px 32px rgba(74, 123, 157, 0.12);
  --shadow-hover: 0 16px 48px rgba(74, 123, 157, 0.2);
  --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: "游ゴシック体", YuGothic, "游ゴシック", "Yu Gothic", "Helvetica Neue", Arial, sans-serif;
  background: var(--nordic-cream);
  color: var(--nordic-charcoal);
  line-height: 1.9;
  font-size: 15px;
  overflow-x: hidden;
}

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

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

/* === Animations === */
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

@keyframes floatReverse {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(20px) rotate(-5deg); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.1); opacity: 0.8; }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-60px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(60px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

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

@keyframes rotateShape {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

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

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

@keyframes morphShape {
  0%, 100% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
  50% { border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%; }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(200, 169, 107, 0.3); }
  50% { box-shadow: 0 0 40px rgba(200, 169, 107, 0.6); }
}

/* Scroll animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === Layout === */
.layout-wrapper {
  display: flex;
  min-height: 100vh;
}

/* === Sidebar === */
.sidebar {
  width: 280px;
  background: linear-gradient(180deg, var(--nordic-forest) 0%, #2C5A7C 100%);
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  z-index: 1000;
  overflow-y: auto;
}

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

.brand-logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--nordic-white);
  margin-bottom: 8px;
  line-height: 1.3;
  display: block;
  position: relative;
  z-index: 1;
  animation: slideInLeft 0.8s ease-out;
}

.brand-logo span {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.7);
  display: block;
  margin-top: 6px;
  font-weight: 400;
  letter-spacing: 0.5px;
}

.brand-tagline {
  color: var(--nordic-gold);
  font-size: 0.85rem;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
  animation: slideInLeft 0.8s ease-out 0.1s both;
}

/* Navigation */
.nav-menu {
  flex: 1;
  position: relative;
  z-index: 1;
}

.nav-menu li {
  margin-bottom: 4px;
  animation: slideInLeft 0.6s ease-out both;
}

.nav-menu li:nth-child(1) { animation-delay: 0.15s; }
.nav-menu li:nth-child(2) { animation-delay: 0.2s; }
.nav-menu li:nth-child(3) { animation-delay: 0.25s; }
.nav-menu li:nth-child(4) { animation-delay: 0.3s; }
.nav-menu li:nth-child(5) { animation-delay: 0.35s; }
.nav-menu li:nth-child(6) { animation-delay: 0.4s; }
.nav-menu li:nth-child(7) { animation-delay: 0.45s; }
.nav-menu li:nth-child(8) { animation-delay: 0.5s; }
.nav-menu li:nth-child(9) { animation-delay: 0.55s; }
.nav-menu li:nth-child(10) { animation-delay: 0.6s; }

.nav-menu a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 12px;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  font-size: 0.9rem;
  position: relative;
  overflow: hidden;
}

.nav-menu a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 100%;
  background: rgba(255,255,255,0.1);
  transition: width 0.3s ease;
  border-radius: 12px;
}

.nav-menu a:hover::before {
  width: 100%;
}

.nav-menu a:hover {
  color: var(--nordic-white);
  transform: translateX(6px);
}

.nav-menu a.active {
  background: rgba(255,255,255,0.15);
  color: var(--nordic-white);
}

.nav-icon {
  width: 20px;
  height: 20px;
  opacity: 0.8;
  transition: var(--transition-smooth);
}

.nav-menu a:hover .nav-icon {
  opacity: 1;
  transform: scale(1.1);
}

/* Register Button */
.btn-register {
  display: block;
  margin-top: 24px;
  background: linear-gradient(135deg, var(--nordic-gold) 0%, #7EC8E3 100%);
  color: var(--nordic-white) !important;
  padding: 16px 20px;
  text-align: center;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 16px;
  position: relative;
  z-index: 1;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(91, 163, 198, 0.4);
  animation: slideInLeft 0.8s ease-out 0.7s both;
}

.btn-register::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: shimmer 3s infinite;
}

.btn-register:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 30px rgba(200, 169, 107, 0.5);
}

/* === Main Content === */
.main-content {
  flex: 1;
  margin-left: 280px;
  padding: 40px 50px;
  min-height: 100vh;
  position: relative;
}

/* === Hero Section === */
.hero-section {
  background: linear-gradient(135deg, var(--nordic-forest) 0%, var(--nordic-sage) 100%);
  color: var(--nordic-white);
  padding: 100px 60px 120px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
  opacity: 0.5;
}

/* Floating Shapes */
.hero-shapes {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.15;
}

.hero-shape-1 {
  width: 300px;
  height: 300px;
  background: var(--nordic-gold);
  top: -100px;
  right: 10%;
  animation: float 8s ease-in-out infinite;
}

.hero-shape-2 {
  width: 200px;
  height: 200px;
  background: var(--nordic-terracotta);
  bottom: 20%;
  left: 5%;
  animation: floatReverse 10s ease-in-out infinite;
}

.hero-shape-3 {
  width: 150px;
  height: 150px;
  background: var(--nordic-white);
  top: 40%;
  right: 25%;
  animation: pulse 6s ease-in-out infinite;
}

.hero-shape-4 {
  width: 100px;
  height: 100px;
  background: var(--nordic-sand);
  bottom: 10%;
  right: 15%;
  animation: float 7s ease-in-out infinite 1s;
}

.hero-shape-5 {
  width: 80px;
  height: 80px;
  background: var(--nordic-gold);
  top: 20%;
  left: 20%;
  animation: morphShape 8s ease-in-out infinite, rotateShape 20s linear infinite;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-label {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  letter-spacing: 2px;
  margin-bottom: 24px;
  animation: slideInUp 0.8s ease-out;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 24px 0;
  animation: slideInUp 0.8s ease-out 0.2s both;
}

.hero-subtitle {
  font-size: 1.2rem;
  opacity: 0.9;
  margin-bottom: 16px;
  animation: slideInUp 0.8s ease-out 0.3s both;
}

.hero-date {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  padding: 16px 28px;
  border-radius: 16px;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 32px;
  animation: slideInUp 0.8s ease-out 0.4s both, glow 3s ease-in-out infinite;
}

.hero-cta {
  display: inline-block;
  background: var(--nordic-gold);
  color: var(--nordic-charcoal);
  padding: 18px 48px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1.05rem;
  box-shadow: 0 4px 20px rgba(200, 169, 107, 0.4);
  animation: slideInUp 0.8s ease-out 0.5s both;
  position: relative;
  overflow: hidden;
}

.hero-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  transition: left 0.5s ease;
}

.hero-cta:hover::before {
  left: 100%;
}

.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(200, 169, 107, 0.5);
}

/* Hero Wave */
.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.hero-wave svg {
  position: relative;
  display: block;
  width: calc(100% + 1.3px);
  height: 80px;
}

.hero-wave .shape-fill {
  fill: var(--nordic-cream);
}

/* === Page Hero (for sub pages) === */
.page-hero {
  background: linear-gradient(135deg, var(--nordic-forest) 0%, var(--nordic-sage) 100%);
  color: var(--nordic-white);
  padding: 60px 60px 80px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.page-hero-content {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 0;
  animation: slideInUp 0.6s ease-out;
}

.page-hero p {
  margin: 12px 0 0 0;
  opacity: 0.85;
  animation: slideInUp 0.6s ease-out 0.1s both;
}

.page-hero .hero-wave {
  bottom: 0;
}

/* Floating shapes for page hero */
.page-hero .floating-shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
  pointer-events: none;
}

.page-hero .floating-shape-1 {
  width: 150px;
  height: 150px;
  background: var(--nordic-gold);
  top: -30px;
  right: 15%;
  animation: float 8s ease-in-out infinite;
}

.page-hero .floating-shape-2 {
  width: 100px;
  height: 100px;
  background: var(--nordic-terracotta);
  bottom: 30%;
  right: 5%;
  animation: floatReverse 6s ease-in-out infinite;
}

/* === Content Sections === */
.content-section {
  padding: 80px 60px;
}

.content-section.alt-bg {
  background: var(--nordic-white);
}

/* Page Title */
.page-title {
  font-size: 2rem;
  color: var(--nordic-forest);
  margin: 0 0 40px 0;
  position: relative;
  display: inline-block;
}

.page-title::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 0;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--nordic-gold), var(--nordic-terracotta));
  border-radius: 2px;
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header .page-title {
  display: block;
}

.section-header .page-title::after {
  left: 50%;
  transform: translateX(-50%);
}

.section-header p {
  color: var(--nordic-sage);
  font-size: 1.05rem;
  margin-top: 24px;
}

/* === News Section === */
.news-list {
  background: var(--nordic-white);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow-soft);
}

.news-item {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--nordic-sand);
  transition: var(--transition-smooth);
}

.news-item:last-child {
  border-bottom: none;
}

.news-item:hover {
  transform: translateX(8px);
}

.news-date {
  flex-shrink: 0;
  background: var(--nordic-forest);
  color: var(--nordic-white);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
}

.news-content {
  flex: 1;
}

.news-badge {
  display: inline-block;
  background: var(--nordic-gold);
  color: var(--nordic-charcoal);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-right: 12px;
}

/* === Concept Cards === */
.concept-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.concept-card {
  background: var(--nordic-white);
  border-radius: 24px;
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.concept-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--nordic-gold), var(--nordic-terracotta));
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

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

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

.concept-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--nordic-cream), var(--nordic-sand));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 2.5rem;
  transition: var(--transition-smooth);
}

.concept-card:hover .concept-icon {
  transform: scale(1.1) rotate(5deg);
}

.concept-card h3 {
  font-size: 1.3rem;
  color: var(--nordic-forest);
  margin: 0 0 16px 0;
}

.concept-card p {
  color: #666;
  font-size: 0.95rem;
  line-height: 1.8;
  margin: 0;
}

/* === Greeting Page === */
.greeting-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 60px;
  align-items: start;
}

.greeting-photo {
  position: sticky;
  top: 40px;
}

.greeting-photo img {
  width: 100%;
  border-radius: 20px;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
}

.greeting-photo img:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}

.greeting-info {
  text-align: center;
  margin-top: 20px;
}

.greeting-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--nordic-forest);
  margin: 0 0 8px 0;
}

.greeting-title {
  font-size: 0.9rem;
  color: var(--nordic-sage);
}

.greeting-content {
  background: var(--nordic-white);
  border-radius: 24px;
  padding: 48px;
  box-shadow: var(--shadow-soft);
}

.greeting-content h2 {
  font-size: 1.8rem;
  color: var(--nordic-forest);
  margin: 0 0 32px 0;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--nordic-sand);
}

.greeting-content p {
  margin: 0 0 24px 0;
  text-align: justify;
}

.greeting-content p:last-of-type {
  margin-bottom: 0;
}

.greeting-signature {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--nordic-sand);
  text-align: right;
}

.greeting-signature .name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--nordic-forest);
}

.greeting-signature .position {
  font-size: 0.9rem;
  color: var(--nordic-sage);
  margin-top: 4px;
}

/* References */
.references {
  margin-top: 48px;
  padding: 32px;
  background: var(--nordic-cream);
  border-radius: 16px;
}

.references h3 {
  font-size: 1rem;
  color: var(--nordic-forest);
  margin: 0 0 16px 0;
}

.references ol {
  margin: 0;
  padding-left: 24px;
  font-size: 0.9rem;
  color: #666;
  list-style: decimal;
}

.references li {
  margin-bottom: 12px;
}

.references a {
  color: var(--nordic-forest);
  text-decoration: underline;
}

.references a:hover {
  color: var(--nordic-gold);
}

/* === About / Info Table === */
.info-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--nordic-white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.info-table th,
.info-table td {
  padding: 20px 28px;
  text-align: left;
  border-bottom: 1px solid var(--nordic-sand);
}

.info-table th {
  background: var(--nordic-forest);
  color: var(--nordic-white);
  font-weight: 600;
  width: 180px;
}

.info-table tr:last-child th,
.info-table tr:last-child td {
  border-bottom: none;
}

.info-table tr:hover td {
  background: rgba(74, 107, 93, 0.03);
}

/* === Program Timeline === */
.program-day {
  margin-bottom: 60px;
}

.program-day-title {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  background: var(--nordic-forest);
  color: var(--nordic-white);
  padding: 16px 32px;
  border-radius: 50px;
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 32px;
}

.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--nordic-forest), var(--nordic-sage));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  background: var(--nordic-white);
  border-radius: 16px;
  padding: 28px 32px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -33px;
  top: 32px;
  width: 14px;
  height: 14px;
  background: var(--nordic-gold);
  border: 3px solid var(--nordic-white);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--nordic-forest);
}

.timeline-item:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-hover);
}

.timeline-item.break {
  background: var(--nordic-sand);
}

.timeline-item.break::before {
  background: var(--nordic-sage);
  box-shadow: 0 0 0 4px var(--nordic-sage);
}

.timeline-time {
  display: inline-block;
  background: var(--nordic-forest);
  color: var(--nordic-white);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.timeline-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--nordic-charcoal);
  margin: 0 0 8px 0;
}

.timeline-speaker {
  font-size: 0.9rem;
  color: var(--nordic-sage);
  margin-bottom: 12px;
}

.timeline-desc {
  font-size: 0.95rem;
  color: #666;
  line-height: 1.8;
  margin: 0;
}

/* === History Timeline === */
.history-timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.history-item {
  display: flex;
  gap: 40px;
  margin-bottom: 40px;
  position: relative;
}

.history-year {
  flex-shrink: 0;
  width: 100px;
  text-align: right;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--nordic-forest);
  padding-top: 16px;
}

.history-content {
  flex: 1;
  background: var(--nordic-white);
  border-radius: 16px;
  padding: 24px 32px;
  box-shadow: var(--shadow-soft);
  position: relative;
  transition: var(--transition-smooth);
}

.history-content::before {
  content: '';
  position: absolute;
  left: -20px;
  top: 24px;
  border: 10px solid transparent;
  border-right-color: var(--nordic-white);
}

.history-item:hover .history-content {
  transform: translateX(8px);
  box-shadow: var(--shadow-hover);
}

.history-content h4 {
  font-size: 1.1rem;
  color: var(--nordic-forest);
  margin: 0 0 8px 0;
}

.history-content p {
  margin: 0;
  color: #666;
  font-size: 0.95rem;
}

/* === Coming Soon === */
.coming-soon {
  text-align: center;
  padding: 100px 40px;
  background: var(--nordic-white);
  border-radius: 24px;
  box-shadow: var(--shadow-soft);
}

.coming-soon-icon {
  font-size: 4rem;
  margin-bottom: 24px;
  animation: bounce 2s ease-in-out infinite;
}

.coming-soon h2 {
  font-size: 2rem;
  color: var(--nordic-forest);
  margin: 0 0 16px 0;
}

.coming-soon p {
  color: var(--nordic-sage);
  font-size: 1.1rem;
}

/* === Link Cards === */
.link-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--nordic-white);
  border-radius: 16px;
  padding: 28px;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
}

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

.link-card-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--nordic-forest), var(--nordic-sage));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--nordic-white);
  font-size: 1.5rem;
  flex-shrink: 0;
  transition: var(--transition-smooth);
}

.link-card:hover .link-card-icon {
  transform: rotate(5deg) scale(1.05);
}

.link-card-content h3 {
  font-size: 1.1rem;
  color: var(--nordic-charcoal);
  margin: 0 0 8px 0;
}

.link-card-content p {
  font-size: 0.9rem;
  color: var(--nordic-sage);
  margin: 0;
}

/* === Contact Form === */
.contact-form {
  background: var(--nordic-white);
  border-radius: 24px;
  padding: 48px;
  box-shadow: var(--shadow-soft);
  max-width: 700px;
}

.form-group {
  margin-bottom: 28px;
}

.form-group label {
  display: block;
  font-weight: 600;
  color: var(--nordic-forest);
  margin-bottom: 10px;
}

.form-group label .required {
  color: var(--nordic-terracotta);
  font-size: 0.85rem;
  margin-left: 4px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--nordic-sand);
  border-radius: 12px;
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition-smooth);
  background: var(--nordic-cream);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--nordic-forest);
  background: var(--nordic-white);
}

.form-group textarea {
  min-height: 160px;
  resize: vertical;
}

.form-submit {
  display: inline-block;
  background: linear-gradient(135deg, var(--nordic-forest), var(--nordic-sage));
  color: var(--nordic-white);
  padding: 16px 48px;
  border: none;
  border-radius: 50px;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(74, 107, 93, 0.3);
}

/* === FAQ Section === */
.faq-list {
  max-width: 800px;
}

.faq-item {
  background: var(--nordic-white);
  border-radius: 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.faq-item:hover {
  transform: translateX(4px);
}

.faq-question {
  padding: 24px 28px;
  font-weight: 600;
  color: var(--nordic-forest);
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.faq-question:hover {
  background: rgba(74, 107, 93, 0.03);
}

.faq-question::before {
  content: 'Q';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--nordic-gold);
  color: var(--nordic-charcoal);
  border-radius: 50%;
  font-weight: 700;
  flex-shrink: 0;
}

.faq-answer {
  padding: 0 28px 24px 76px;
  color: #666;
  line-height: 1.9;
}

/* === Footer === */
.footer {
  background: var(--nordic-forest);
  color: var(--nordic-white);
  padding: 48px 60px;
  text-align: center;
}

.footer-logo {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-copy {
  font-size: 0.85rem;
  opacity: 0.7;
}

/* === Mobile Navigation === */
.mobile-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--nordic-forest);
  padding: 12px 16px;
  z-index: 1000;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
}

.mobile-nav-list {
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: rgba(255,255,255,0.7);
  font-size: 0.7rem;
  padding: 8px;
  transition: var(--transition-smooth);
}

.mobile-nav-item.active,
.mobile-nav-item:hover {
  color: var(--nordic-white);
}

.mobile-nav-icon {
  font-size: 1.3rem;
}

/* === Particles Effect === */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 6px;
  height: 6px;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
  animation: floatParticle 15s infinite;
}

@keyframes floatParticle {
  0%, 100% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100vh) rotate(720deg);
    opacity: 0;
  }
}

/* === Responsive Design === */
@media (max-width: 1024px) {
  .sidebar {
    width: 240px;
  }
  
  .main-content {
    margin-left: 240px;
  }
  
  .hero-section {
    padding: 80px 40px 100px;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .content-section {
    padding: 60px 40px;
  }
  
  .concept-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .greeting-container {
    grid-template-columns: 220px 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .main-content {
    margin-left: 0;
    padding-bottom: 80px;
  }
  
  .mobile-nav {
    display: block;
  }
  
  .hero-section {
    padding: 60px 24px 80px;
  }
  
  .hero-title {
    font-size: 1.8rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .hero-date {
    padding: 12px 20px;
    font-size: 0.95rem;
  }
  
  .hero-cta {
    padding: 14px 32px;
    font-size: 0.95rem;
  }
  
  .page-hero {
    padding: 48px 24px 60px;
  }
  
  .page-hero h1 {
    font-size: 1.6rem;
  }
  
  .content-section {
    padding: 48px 20px;
  }
  
  .page-title {
    font-size: 1.6rem;
  }
  
  .concept-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .greeting-container {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .greeting-photo {
    position: static;
    max-width: 200px;
    margin: 0 auto;
  }
  
  .greeting-content {
    padding: 32px 24px;
  }
  
  .link-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-form {
    padding: 32px 24px;
  }
  
  .info-table th,
  .info-table td {
    display: block;
    width: 100%;
  }
  
  .info-table th {
    border-bottom: none;
    padding-bottom: 8px;
  }
  
  .info-table td {
    padding-top: 8px;
  }
  
  .history-item {
    flex-direction: column;
    gap: 16px;
  }
  
  .history-year {
    text-align: left;
    width: auto;
    padding-top: 0;
  }
  
  .history-content::before {
    display: none;
  }
  
  .footer {
    padding: 40px 24px;
  }
}

/* === Utilities === */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.hidden { display: none; }

/* ========================================
   Hero Section - Nordic Blue Style
======================================== */
.hero-section {
  position: relative;
  min-height: 500px;
  background: linear-gradient(135deg, var(--nordic-sand) 0%, var(--nordic-cream) 50%, #E8F4FC 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 60px 40px 100px;
  margin: -40px -50px 40px -50px;
  width: calc(100% + 100px);
}

.hero-shapes {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
}

.hero-section .shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.5;
}

.hero-section .shape-1 {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, var(--nordic-sage), transparent);
  top: -100px;
  right: -50px;
  animation: float 8s ease-in-out infinite;
}

.hero-section .shape-2 {
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, var(--nordic-terracotta), transparent);
  bottom: 10%;
  left: 5%;
  animation: floatReverse 6s ease-in-out infinite;
}

.hero-section .shape-3 {
  width: 150px;
  height: 150px;
  background: linear-gradient(135deg, var(--nordic-gold), transparent);
  top: 30%;
  right: 15%;
  animation: float 10s ease-in-out infinite;
  opacity: 0.3;
}

.hero-section .shape-4 {
  width: 80px;
  height: 80px;
  background: var(--nordic-terracotta);
  bottom: 25%;
  right: 30%;
  animation: pulse 4s ease-in-out infinite;
  opacity: 0.25;
}

.hero-section .shape-5 {
  width: 120px;
  height: 120px;
  border: 3px solid var(--nordic-sage);
  background: transparent;
  top: 15%;
  left: 20%;
  animation: rotateShape 20s linear infinite;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 800px;
}

.hero-subtitle {
  font-size: 1rem;
  letter-spacing: 0.3em;
  color: var(--nordic-forest);
  margin-bottom: 20px;
  animation: fadeIn 1s ease-out 0.3s backwards;
  font-weight: 500;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  color: var(--nordic-charcoal);
  margin: 0 0 25px 0;
  line-height: 1.4;
  animation: slideInUp 1s ease-out 0.5s backwards;
}

.hero-title span {
  display: inline-block;
  position: relative;
}

.hero-title span::after {
  content: '';
  position: absolute;
  bottom: 5px;
  left: 0;
  width: 100%;
  height: 12px;
  background: var(--nordic-terracotta);
  z-index: -1;
  opacity: 0.4;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--nordic-charcoal);
  margin-bottom: 25px;
  animation: slideInUp 1s ease-out 0.7s backwards;
  opacity: 0.8;
}

.hero-date {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--nordic-white);
  padding: 15px 30px;
  border-radius: 50px;
  margin-bottom: 30px;
  box-shadow: var(--shadow-soft);
  animation: scaleIn 0.8s ease-out 0.9s backwards;
}

.hero-date-icon {
  width: 24px;
  height: 24px;
  color: var(--nordic-forest);
}

.hero-date span {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--nordic-charcoal);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--nordic-forest) 0%, var(--nordic-gold) 100%);
  color: var(--nordic-white);
  padding: 18px 40px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1rem;
  box-shadow: 0 10px 30px rgba(74, 123, 157, 0.3);
  animation: scaleIn 0.8s ease-out 1.1s backwards;
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.hero-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s ease;
}

.hero-cta:hover::before {
  left: 100%;
}

.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(74, 123, 157, 0.4);
}

.hero-cta svg {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
}

.hero-cta:hover svg {
  transform: translateX(5px);
}

.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 80px;
}

.hero-wave svg {
  width: 100%;
  height: 100%;
}

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

/* ========================================
   News Section
======================================== */
.section-news {
  padding: 60px 40px;
  background: var(--nordic-cream);
}

.section-news .section-title {
  font-size: 1.8rem;
  color: var(--nordic-forest);
  margin-bottom: 30px;
  display: flex;
  align-items: center;
}

.section-news .section-title svg {
  color: var(--nordic-forest);
}

.news-list {
  background: var(--nordic-white);
  border-radius: 16px;
  padding: 10px 30px;
  box-shadow: var(--shadow-soft);
}

.news-item {
  display: flex;
  align-items: baseline;
  padding: 20px 0;
  border-bottom: 1px solid var(--nordic-sand);
}

.news-item:last-child {
  border-bottom: none;
}

.news-text {
  flex: 1;
  color: var(--nordic-charcoal);
}

/* ========================================
   Concept Section
======================================== */
.section-concept {
  padding: 80px 40px;
  background: var(--nordic-white);
  text-align: center;
}

.section-concept .section-title {
  font-size: 1.8rem;
  color: var(--nordic-forest);
  margin-bottom: 20px;
  display: inline-flex;
  align-items: center;
}

.concept-lead {
  font-size: 1.3rem;
  color: var(--nordic-forest);
  font-weight: 600;
  margin-bottom: 20px;
}

.concept-intro {
  max-width: 700px;
  margin: 0 auto 50px;
  line-height: 2;
  color: var(--nordic-charcoal);
}

.concept-intro strong {
  color: var(--nordic-forest);
}

.concept-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto 50px;
}

.concept-card {
  background: var(--nordic-cream);
  padding: 40px 30px;
  border-radius: 20px;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.concept-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--nordic-forest), var(--nordic-sage));
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

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

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

.concept-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--nordic-sand), var(--nordic-white));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: transform 0.3s ease;
}

.concept-icon svg {
  width: 32px;
  height: 32px;
  color: var(--nordic-forest);
}

.concept-card:hover .concept-icon {
  transform: scale(1.1) rotate(5deg);
}

.concept-card h3 {
  font-size: 1.2rem;
  color: var(--nordic-charcoal);
  margin: 0 0 15px 0;
}

.concept-card p {
  color: #5D6D7E;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
}

.concept-closing {
  max-width: 700px;
  margin: 0 auto;
  line-height: 2;
  color: var(--nordic-charcoal);
}

.concept-closing strong {
  color: var(--nordic-forest);
}

/* Responsive */
@media (max-width: 768px) {
  .hero-section {
    padding: 40px 20px 80px;
    min-height: auto;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-date {
    padding: 12px 20px;
  }
  
  .hero-date span {
    font-size: 1rem;
  }
  
  .hero-cta {
    padding: 15px 30px;
    font-size: 1rem;
  }
  
  .section-news,
  .section-concept {
    padding: 40px 20px;
  }
  
  .concept-cards {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   Footer
======================================== */
.site-footer {
  background: linear-gradient(135deg, var(--nordic-forest) 0%, #2C5A7C 100%);
  color: var(--nordic-white);
  padding: 50px 40px;
  text-align: center;
  margin-left: 280px;
}

.footer-content {
  max-width: 600px;
  margin: 0 auto;
}

.footer-logo {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 0 10px 0;
  letter-spacing: 0.1em;
}

.footer-tagline {
  font-size: 0.95rem;
  opacity: 0.9;
  margin: 0 0 8px 0;
}

.footer-date {
  font-size: 0.9rem;
  opacity: 0.8;
  margin: 0 0 25px 0;
}

.footer-copyright {
  font-size: 0.8rem;
  opacity: 0.6;
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.2);
}

@media (max-width: 768px) {
  .site-footer {
    margin-left: 0;
    padding: 40px 20px 100px;
  }
}

/* ========================================
   Greeting Page
======================================== */
.greeting-section {
  background: var(--nordic-white);
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--shadow-soft);
  margin-bottom: 30px;
}

.greeting-layout {
  display: flex;
  gap: 40px;
  margin-bottom: 40px;
}

.greeting-photo {
  flex-shrink: 0;
  width: 200px;
}

.greeting-photo img {
  width: 100%;
  border-radius: 12px;
  box-shadow: var(--shadow-soft);
  filter: brightness(1.1) contrast(1.05);
}

.greeting-content {
  flex: 1;
}

.greeting-content h3 {
  color: var(--nordic-forest);
  font-size: 1.5rem;
  margin: 0 0 25px 0;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--nordic-sand);
}

.greeting-content p {
  line-height: 2;
  margin-bottom: 20px;
  text-align: justify;
}

.greeting-content strong {
  color: var(--nordic-forest);
}

.greeting-signature {
  margin-top: 40px;
  text-align: right;
  padding-top: 20px;
  border-top: 1px solid var(--nordic-sand);
}

.signature-title {
  font-size: 0.9rem;
  color: var(--nordic-charcoal);
  margin: 0 0 5px 0;
}

.signature-name {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--nordic-forest);
  margin: 0 0 5px 0;
}

.signature-affiliation {
  font-size: 0.9rem;
  color: #5D6D7E;
  margin: 0;
}

.references {
  background: var(--nordic-cream);
  border-radius: 12px;
  padding: 25px 30px;
}

.references h4 {
  color: var(--nordic-forest);
  font-size: 1rem;
  margin: 0 0 15px 0;
}

.references ol {
  margin: 0;
  padding-left: 20px;
  list-style: decimal;
}

.references li {
  margin-bottom: 12px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--nordic-charcoal);
}

.references a {
  color: var(--nordic-forest);
  word-break: break-all;
}

.references a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .greeting-layout {
    flex-direction: column;
  }
  
  .greeting-photo {
    width: 150px;
    margin: 0 auto;
  }
  
  .greeting-section {
    padding: 25px;
  }
}

/* ========================================
   Program Page
======================================== */
.page-lead {
  margin-bottom: 30px;
  color: var(--nordic-charcoal);
  line-height: 1.8;
}

.day-header {
  background: linear-gradient(135deg, var(--nordic-forest) 0%, #2C5A7C 100%);
  color: var(--nordic-white);
  padding: 22px 30px;
  border-radius: 12px;
  margin: 50px 0 30px 0;
  font-weight: 700;
  font-size: 1.5rem;
  box-shadow: 0 8px 25px rgba(74, 123, 157, 0.3);
  display: flex;
  align-items: center;
  gap: 15px;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.05em;
}

.day-header::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 200px;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08));
}

.day-header svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.day-header:first-of-type {
  margin-top: 10px;
}

.timeline-area {
  margin-left: 20px;
  margin-bottom: 20px;
}

.timeline-item {
  background: var(--nordic-white);
  border-left: 4px solid var(--nordic-forest);
  padding: 25px 30px;
  margin-bottom: 15px;
  border-radius: 0 12px 12px 0;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
}

.timeline-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-hover);
}

.timeline-item.break {
  background: var(--nordic-sand);
  border-left-color: var(--nordic-sage);
}

.timeline-item.highlight {
  background: #E8F4FC;
  border-left-color: var(--nordic-gold);
}

.timeline-item.networking {
  background: #FFF8E6;
  border-left-color: #E6B800;
}

.timeline-time {
  display: inline-block;
  background: var(--nordic-forest);
  color: var(--nordic-white);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.timeline-title {
  color: var(--nordic-charcoal);
  font-size: 1.15rem;
  margin: 0 0 10px 0;
}

.timeline-desc {
  color: #5D6D7E;
  margin: 0;
  line-height: 1.8;
}

.timeline-desc strong {
  color: var(--nordic-forest);
}

/* ========================================
   History Page
======================================== */
.history-timeline {
  margin-left: 20px;
}

.history-item {
  background: var(--nordic-white);
  border-left: 4px solid var(--nordic-forest);
  padding: 25px 30px;
  margin-bottom: 15px;
  border-radius: 0 12px 12px 0;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
}

.history-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-hover);
}

.history-year {
  display: inline-block;
  background: var(--nordic-forest);
  color: var(--nordic-white);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.history-title {
  color: var(--nordic-charcoal);
  font-size: 1.1rem;
  margin: 0 0 8px 0;
}

.history-desc {
  color: #5D6D7E;
  margin: 0;
  line-height: 1.7;
  font-size: 0.95rem;
}

/* ========================================
   Mobile Header & Hamburger Menu
======================================== */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: linear-gradient(135deg, var(--nordic-forest) 0%, #2C5A7C 100%);
  z-index: 1001;
  padding: 0 20px;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

.mobile-logo {
  color: var(--nordic-white);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.hamburger {
  width: 32px;
  height: 32px;
  position: relative;
  background: rgba(255,255,255,0.1);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  transition: all 0.3s ease;
}

.hamburger:hover {
  background: rgba(255,255,255,0.2);
}

.hamburger span {
  display: block;
  height: 2px;
  width: 18px;
  background: var(--nordic-white);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.hamburger.active {
  background: rgba(255,255,255,0.2);
}

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

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

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

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(3px);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
  opacity: 1;
}

body.menu-open {
  overflow: hidden;
}

/* ========================================
   Responsive - Tablet (1024px)
======================================== */
@media (max-width: 1024px) {
  .sidebar {
    width: 260px;
  }
  
  .main-content {
    margin-left: 260px;
    padding: 30px 40px;
  }
  
  .hero-section {
    margin: -30px -40px 30px -40px;
    width: calc(100% + 80px);
  }
  
  .site-footer {
    margin-left: 260px;
  }
  
  .greeting-layout {
    gap: 30px;
  }
  
  .greeting-photo {
    width: 180px;
  }
}

/* ========================================
   Responsive - Mobile (768px)
======================================== */
@media (max-width: 768px) {
  .mobile-header {
    display: flex;
  }
  
  .sidebar {
    display: flex;
    flex-direction: column;
    position: fixed;
    right: -300px;
    left: auto;
    width: 280px;
    top: 0;
    height: 100vh;
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    padding-top: 70px;
    padding-bottom: 30px;
    background: linear-gradient(180deg, var(--nordic-forest) 0%, #1a4a6e 100%);
    box-shadow: -5px 0 30px rgba(0,0,0,0.3);
    overflow-y: auto;
  }
  
  .sidebar.active {
    right: 0;
  }
  
  .sidebar .brand-logo,
  .sidebar .brand-tagline {
    display: none;
  }
  
  .sidebar .nav-menu {
    padding: 0 15px;
    flex: 1;
  }
  
  .sidebar .nav-menu li a {
    padding: 12px 18px;
    margin-bottom: 4px;
    border-radius: 12px;
    font-size: 0.95rem;
  }
  
  .sidebar .nav-menu li a:hover,
  .sidebar .nav-menu li a.active {
    background: rgba(255,255,255,0.15);
    transform: translateX(-5px);
  }
  
  .sidebar .btn-register {
    margin: 15px 15px 20px;
    text-align: center;
    border-radius: 12px;
    flex-shrink: 0;
  }
  
  .sidebar-overlay {
    display: block;
    pointer-events: none;
  }
  
  .sidebar-overlay.active {
    pointer-events: auto;
  }
  
  .main-content {
    margin-left: 0;
    padding: 80px 20px 30px;
  }
  
  .hero-section {
    margin: -80px -20px 30px -20px;
    width: calc(100% + 40px);
    padding: 100px 20px 80px;
    min-height: auto;
  }
  
  .hero-title {
    font-size: 1.8rem;
  }
  
  .hero-subtitle {
    font-size: 0.9rem;
    letter-spacing: 0.15em;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .hero-date {
    padding: 12px 20px;
    flex-direction: column;
    gap: 8px;
  }
  
  .hero-date span {
    font-size: 1rem;
  }
  
  .hero-cta {
    padding: 15px 30px;
    font-size: 1rem;
  }
  
  .site-footer {
    margin-left: 0;
    padding: 40px 20px;
  }
  
  /* Page Title */
  .page-title {
    font-size: 1.4rem;
  }
  
  /* Section Title */
  .section-title {
    font-size: 1.3rem;
  }
  
  /* News Section */
  .section-news {
    padding: 40px 0;
  }
  
  .news-list {
    padding: 10px 20px;
  }
  
  .news-item {
    flex-direction: column;
    gap: 8px;
    padding: 15px 0;
  }
  
  .news-date {
    width: auto;
  }
  
  /* Concept Section */
  .section-concept {
    padding: 50px 0;
  }
  
  .concept-lead {
    font-size: 1.1rem;
  }
  
  .concept-intro {
    font-size: 0.95rem;
  }
  
  .concept-cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .concept-card {
    padding: 30px 25px;
  }
  
  /* Greeting Page */
  .greeting-section {
    padding: 25px;
  }
  
  .greeting-layout {
    flex-direction: column;
    gap: 25px;
  }
  
  .greeting-photo {
    width: 150px;
    margin: 0 auto;
  }
  
  .greeting-content h3 {
    font-size: 1.2rem;
    text-align: center;
  }
  
  .greeting-content p {
    font-size: 0.95rem;
  }
  
  .greeting-signature {
    text-align: center;
  }
  
  .references {
    padding: 20px;
  }
  
  /* Program Page */
  .day-header {
    padding: 15px 20px;
    font-size: 1.1rem;
    margin: 30px 0 20px 0;
  }
  
  .day-header svg {
    width: 22px;
    height: 22px;
  }
  
  .timeline-area {
    margin-left: 0;
  }
  
  .timeline-item {
    padding: 20px;
    border-radius: 0 10px 10px 0;
  }
  
  .timeline-time {
    font-size: 0.8rem;
    padding: 5px 12px;
  }
  
  .timeline-title {
    font-size: 1rem;
  }
  
  .timeline-desc {
    font-size: 0.9rem;
  }
  
  /* History Page */
  .history-timeline {
    margin-left: 0;
  }
}

/* ========================================
   Responsive - Small Mobile (480px)
======================================== */
@media (max-width: 480px) {
  .main-content {
    padding: 70px 15px 25px;
  }
  
  .hero-section {
    margin: -70px -15px 25px -15px;
    width: calc(100% + 30px);
    padding: 90px 15px 60px;
  }
  
  .hero-title {
    font-size: 1.5rem;
  }
  
  .hero-cta {
    padding: 12px 25px;
    font-size: 0.9rem;
  }
  
  .page-title {
    font-size: 1.2rem;
  }
  
  .greeting-section {
    padding: 20px 15px;
  }
  
  .greeting-photo {
    width: 120px;
  }
  
  .day-header {
    font-size: 1rem;
    padding: 12px 15px;
  }
  
  .timeline-item {
    padding: 15px;
  }
  
  .concept-card {
    padding: 25px 20px;
  }
  
  .site-footer {
    padding: 30px 15px;
  }
  
  .footer-logo {
    font-size: 1.1rem;
  }
}

/* Mobile Menu Title */
.mobile-menu-title {
  display: none;
}

@media (max-width: 768px) {
  .mobile-menu-title {
    display: block;
    padding: 0 20px 15px;
    margin-bottom: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  
  .mobile-menu-title span {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
  }
}

/* Mobile Menu Animation */
@media (max-width: 768px) {
  .sidebar .nav-menu li {
    opacity: 0;
    transform: translateX(20px);
    transition: all 0.3s ease;
  }
  
  .sidebar.active .nav-menu li {
    opacity: 1;
    transform: translateX(0);
  }
  
  .sidebar.active .nav-menu li:nth-child(1) { transition-delay: 0.05s; }
  .sidebar.active .nav-menu li:nth-child(2) { transition-delay: 0.1s; }
  .sidebar.active .nav-menu li:nth-child(3) { transition-delay: 0.15s; }
  .sidebar.active .nav-menu li:nth-child(4) { transition-delay: 0.2s; }
  .sidebar.active .nav-menu li:nth-child(5) { transition-delay: 0.25s; }
  .sidebar.active .nav-menu li:nth-child(6) { transition-delay: 0.3s; }
  .sidebar.active .nav-menu li:nth-child(7) { transition-delay: 0.35s; }
  .sidebar.active .nav-menu li:nth-child(8) { transition-delay: 0.4s; }
  .sidebar.active .nav-menu li:nth-child(9) { transition-delay: 0.45s; }
  
  .sidebar .btn-register {
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease 0.5s;
  }
  
  .sidebar.active .btn-register {
    opacity: 1;
    transform: translateY(0);
  }
}