:root {
  --primary-color: #0b1a4a; /* Royal Blue from poster */
  --secondary-color: #ffd700; /* Gold/Yellow from poster */
  --accent-blue: #2a81f3; /* Lighter vivid blue */
  --text-dark: #1f2937;
  --text-light: #f3f4f6;
  --bg-color: #f8fafc;
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.3);
  --glass-shadow: 0 8px 32px 0 rgba(11, 26, 74, 0.1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: var(--bg-color);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
}

h2 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  text-align: center;
}

h2 span {
  color: var(--accent-blue);
}

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--secondary-color);
  color: var(--primary-color);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.5);
  background: #ffea55;
}

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

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

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 20px;
  padding: 2.5rem;
  transition: var(--transition);
}

.glass-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px 0 rgba(11, 26, 74, 0.15);
}

/* Header & Nav */
header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition);
  padding: 1rem 0;
}

header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  padding: 0.5rem 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-color);
  text-decoration: none;
}

.logo span {
  font-weight: 400;
  color: var(--text-dark);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  transition: var(--transition);
}

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

/* Language Selector */
.lang-selector {
  position: relative;
  display: inline-block;
}

.lang-btn {
  background: none;
  border: none;
  color: var(--text-dark);
  font-weight: 500;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: var(--transition);
}

.lang-btn:hover {
  color: var(--accent-blue);
}

.lang-dropdown {
  position: absolute;
  top: 150%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: white;
  min-width: 120px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
  border-radius: 10px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.lang-selector:hover .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.lang-dropdown a {
  padding: 10px 15px;
  color: var(--text-dark);
  text-decoration: none;
  font-size: 0.95rem;
  text-align: center;
  transition: var(--transition);
}

.lang-dropdown a:hover {
  background: var(--bg-color);
  color: var(--accent-blue);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  background: linear-gradient(135deg, var(--primary-color) 0%, rgba(11,26,74,0.85) 100%), url('./assets/hero_business.png') center/cover;
  color: white;
  overflow: hidden;
}

.hero-shapes {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 0;
  overflow: hidden;
}

.shape {
  position: absolute;
  background: var(--secondary-color);
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.2;
}

.shape-1 { top: -10%; right: 10%; width: 400px; height: 400px; }
.shape-2 { bottom: -20%; left: -10%; width: 600px; height: 600px; background: var(--accent-blue); opacity: 0.3; }

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

.hero-content {
  max-width: 800px;
  animation: fadeUp 1s ease-out;
}

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

.hero h1 {
  font-size: 3.2rem;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero .subtitle {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  color: rgba(255,255,255,0.9);
  font-weight: 300;
}

.highlight-bg {
  background: var(--secondary-color);
  color: var(--primary-color);
  padding: 0 10px;
  border-radius: 4px;
  display: inline-block;
  white-space: nowrap;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 3rem;
  border-top: 1px solid rgba(255,255,255,0.2);
  padding-top: 2rem;
}

.stat-item h4 {
  font-size: 2.5rem;
  color: var(--secondary-color);
}

.stat-item p {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Core Advantages Section */
.advantages {
  padding: 6rem 0;
  position: relative;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.adv-icon {
  width: 60px;
  height: 60px;
  background: rgba(42, 129, 243, 0.1);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--accent-blue);
  margin-bottom: 1.5rem;
}

.glass-card h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.glass-card p {
  color: #4b5563;
  font-size: 0.95rem;
}

/* Split Section (Details & Outcomes) */
.details-outcomes {
  padding: 6rem 0;
  background: white;
}

.split-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center; /* Changed from align-items: stretch to align-items: center */
}

.details-box {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  padding: 3rem;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05); /* Added inset-like feel */
}

.details-list {
  list-style: none;
  margin-top: 2rem;
}

.details-list li {
  margin-bottom: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 15px;
  font-size: 1.1rem;
}

.details-list li i {
  color: var(--accent-blue);
  margin-top: 5px;
}

.outcomes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.outcome-item {
  text-align: center;
}

.outcome-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 1rem;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  transition: var(--transition);
}

.outcome-item:hover .outcome-icon {
  transform: scale(1.1);
  background: var(--secondary-color);
  color: var(--primary-color);
}

/* Target Audience / Scenarios */
.scenarios {
  padding: 6rem 0;
  background: #f1f5f9;
}

.scenario-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.tab-btn {
  padding: 1rem 2rem;
  font-size: 1.1rem;
  background: white;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 600;
  color: #64748b;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  transition: var(--transition);
}

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

.tab-content {
  display: none;
  animation: fadeIn 0.5s ease;
}

.tab-content.active {
  display: block;
}

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

.scenario-list {
  background: white;
  padding: 3rem;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  max-width: 800px;
  margin: 0 auto;
}

.scenario-list ul {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
@media (max-width: 768px) {
    .scenario-list ul {
        grid-template-columns: 1fr;
    }
}


.scenario-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 1rem;
  background: #f8fafc;
  border-radius: 10px;
  border-left: 4px solid var(--accent-blue);
}

.tab-content[id="advanced"] .scenario-list li {
  border-left-color: var(--secondary-color);
}


/* Beyond Classroom */
.beyond {
  padding: 6rem 0;
  background: linear-gradient(to right, rgba(255,255,255,0.9), rgba(255,255,255,0.9)), url('./assets/networking_event.png') center/cover fixed;
}

.beyond h2 { text-align: left; }

.beyond-features {
  margin-top: 3rem;
}

.beyond-feature {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 2rem;
  background: white;
  padding: 1.5rem;
  border-radius: 15px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: var(--transition);
}

.beyond-feature:hover {
  transform: translateX(10px);
}

.bf-icon {
  font-size: 2rem;
  color: var(--primary-color);
}

/* Pricing & CTA */
.pricing-cta {
  padding: 6rem 0;
  background: var(--primary-color);
  color: white;
  text-align: center;
}

.pricing-cta h2 {
  color: white;
}

.price-box {
  margin: 3rem auto;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 3rem;
  border-radius: 20px;
  display: inline-block;
}

.price {
  font-size: 5rem;
  font-weight: 800;
  color: var(--secondary-color);
  line-height: 1;
}

.currency {
  font-size: 1.5rem;
  vertical-align: super;
}

.duration {
  font-size: 1.2rem;
  margin-top: 1rem;
  color: rgba(255,255,255,0.8);
}

/* Footer */
footer {
  background: #061132;
  color: #94a3b8;
  padding: 4rem 0 2rem;
  text-align: center;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding-bottom: 2rem;
  margin-bottom: 2rem;
}
@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: 2rem;
    }
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: white;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  color: white;
  background: rgba(255,255,255,0.1);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--accent-blue);
}

/* Animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: 0.8s ease-out;
}

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

/* Responsive */
@media (max-width: 992px) {
  .hero h1 { font-size: 3rem; }
  .split-container { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hero-stats { flex-direction: column; gap: 1.5rem; }
  .nav-links { display: none; } /* Simplified for demo, normally add hamburger */
}

/* Entry Language Modal */
.entry-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(11, 26, 74, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex; /* overridden by inline style if hidden */
  align-items: center;
  justify-content: center;
}

.entry-modal-content {
  background: white;
  padding: 3rem 2.5rem;
  border-radius: 20px;
  width: 90%;
  max-width: 500px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  animation: modalScaleIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalScaleIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.entry-lang-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.entry-lang-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: #f8fafc;
  color: var(--text-dark);
  text-decoration: none;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  font-weight: 500;
  transition: var(--transition);
  text-align: center;
}

.entry-lang-btn:hover {
  background: rgba(42, 129, 243, 0.05);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-2px);
}

@media (max-width: 480px) {
  .entry-lang-grid {
    grid-template-columns: 1fr;
  }
}