/* 
  Fluent Fusion Academy - Premium Stylesheet
  Design System: Modern Educational Institute (Goethe/Coursera Inspired)
  Author: Antigravity
*/

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@400;500;600;700;800;900&display=swap');

/* --- Design System & Custom Properties --- */
:root {
  --primary: #0F4C81;
  --primary-light: #1A5E9B;
  --secondary: #18B7D8;
  --accent: #44D4F4;
  --accent-gold: #F59E0B;
  --accent-red: #EF4444;
  --accent-green: #10B981;
  --bg-main: #FFFFFF;
  --bg-light: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --bg-glass-dark: rgba(15, 76, 129, 0.05);
  --text-dark: #1E293B;
  --text-muted: #64748B;
  --border-color: #E2E8F0;
  
  /* Gradients */
  --primary-gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  --accent-gradient: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
  --glass-gradient: linear-gradient(135deg, rgba(255, 255, 255, 0.8) 0%, rgba(255, 255, 255, 0.3) 100%);
  --gold-gradient: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
  
  /* Typography */
  --font-headings: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(15, 76, 129, 0.05);
  --shadow-md: 0 8px 16px rgba(15, 76, 129, 0.08);
  --shadow-lg: 0 16px 32px rgba(15, 76, 129, 0.12);
  --shadow-glass: 0 8px 32px 0 rgba(15, 76, 129, 0.08);
  --shadow-glow: 0 0 20px rgba(68, 212, 244, 0.35);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layout */
  --container-width: 1200px;
  --header-height: 80px;
}

[data-theme="dark"] {
  --primary: #38BDF8;
  --primary-light: #60A5FA;
  --secondary: #22D3EE;
  --accent: #38BDF8;
  --bg-main: #0F172A;
  --bg-light: #1E293B;
  --bg-card: #1E293B;
  --bg-glass: rgba(15, 23, 42, 0.85);
  --bg-glass-dark: rgba(255, 255, 255, 0.05);
  --text-dark: #F8FAFC;
  --text-muted: #94A3B8;
  --border-color: #334155;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.6);
  --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
  --glass-gradient: linear-gradient(135deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.4) 100%);
}

/* --- Base & Reset Styles --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  outline: none;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headings);
  font-weight: 700;
  line-height: 1.25;
  color: var(--primary);
}

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

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

ul {
  list-style: none;
}

/* --- Custom Scrollbar --- */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
  background: var(--secondary);
  border-radius: 5px;
  border: 2px solid var(--bg-light);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* --- Layout Elements --- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

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

.section-header {
  text-align: center;
  margin-bottom: 60px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-header h2 {
  font-size: 2.25rem;
  margin-bottom: 16px;
  position: relative;
}

.section-header h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--accent-gradient);
  margin: 12px auto 0;
  border-radius: 2px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.125rem;
}

/* --- Typography Utilities --- */
.text-gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-family: var(--font-headings);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  text-align: center;
  gap: 8px;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #FFFFFF;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(15, 76, 129, 0.25);
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
}

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

.btn-secondary:hover {
  background: var(--primary);
  color: #FFFFFF;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--accent-gradient);
  color: #FFFFFF;
  box-shadow: var(--shadow-md);
}

.btn-accent:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(24, 183, 216, 0.25);
}

.btn-glass {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #FFFFFF;
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.35);
  transform: translateY(-3px);
}

/* Button Ripple Effect */
.ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  animation: rippleAnimation 0.6s linear;
  background: rgba(255, 255, 255, 0.4);
  pointer-events: none;
}

@keyframes rippleAnimation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* --- Modernized Header / Navigation Component --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
}

.header-transparent {
  background: rgba(15, 23, 42, 0.15);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.header-scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  height: 72px;
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid var(--border-color);
}

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

/* Logo Presentation Pill for Ultra Visibility */
.logo-wrapper {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 4px 16px rgba(15, 76, 129, 0.15);
  backdrop-filter: blur(10px);
  transition: all var(--transition-normal);
}

[data-theme="dark"] .logo-wrapper {
  background: rgba(15, 23, 42, 0.85);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.logo-wrapper:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(24, 183, 216, 0.25);
}

.logo img {
  height: 48px;
  width: auto;
  display: block;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
  transition: var(--transition-normal);
}

.header-scrolled .logo img {
  height: 40px;
}

/* Nav Menu & Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-link {
  font-family: var(--font-headings);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text-dark);
  position: relative;
  padding: 8px 14px;
  border-radius: 30px;
  transition: all var(--transition-fast);
  letter-spacing: 0.2px;
}

.header-transparent .nav-link {
  color: #FFFFFF;
}

.header-scrolled .nav-link {
  color: var(--text-dark);
}

.nav-link:hover,
.nav-link.active {
  background: rgba(24, 183, 216, 0.15);
  color: var(--secondary) !important;
}

.header-transparent .nav-link:hover,
.header-transparent .nav-link.active {
  background: rgba(255, 255, 255, 0.2);
  color: #FFFFFF !important;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* Nav Actions Container */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Mobile Toggle Hamburger Button */
.hamburger {
  display: none;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 12px;
  cursor: pointer;
  z-index: 1001;
  padding: 8px 10px;
  backdrop-filter: blur(10px);
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 3px;
  margin: 4px auto;
  background-color: var(--primary);
  transition: all var(--transition-normal);
  border-radius: 2px;
}

.header-transparent .hamburger-line {
  background-color: #FFFFFF;
}

.header-scrolled .hamburger-line {
  background-color: var(--primary);
}

/* Hamburger active transformation */
.hamburger.active .hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

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

/* --- Hero Sections --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: linear-gradient(135deg, #072a4b 0%, #0F4C81 50%, #116892 100%);
  color: #FFFFFF;
  overflow: hidden;
}

.hero-bg-shapes {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
  pointer-events: none;
}

.hero-bg-shapes .shape {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(24,183,216,0.15) 0%, rgba(68,212,244,0) 70%);
}

.hero-bg-shapes .shape-1 {
  width: 500px;
  height: 500px;
  top: -100px;
  right: -100px;
  animation: float 20s infinite alternate;
}

.hero-bg-shapes .shape-2 {
  width: 400px;
  height: 400px;
  bottom: -100px;
  left: -100px;
  animation: float 15s infinite alternate-reverse;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 40px;
  position: relative;
  z-index: 2;
}

.hero-content {
  padding-right: 20px;
}

.hero-tagline {
  font-family: var(--font-headings);
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 16px;
  display: inline-block;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.15;
  color: #FFFFFF;
  margin-bottom: 24px;
}

.hero-subheading {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-image-wrapper {
  position: relative;
}

.hero-image-container {
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid rgba(255, 255, 255, 0.1);
  transform: perspective(1000px) rotateY(-5deg);
  transition: transform var(--transition-slow);
}

.hero-image-container:hover {
  transform: perspective(1000px) rotateY(0deg) scale(1.02);
}

.hero-image-container img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.hero-floating-icon {
  position: absolute;
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  padding: 12px 20px;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-glass);
  border: 1px solid rgba(255, 255, 255, 0.2);
  z-index: 3;
}

.hero-floating-icon span {
  font-family: var(--font-headings);
  font-weight: 700;
  color: var(--primary);
  font-size: 0.9rem;
}

.hero-floating-icon i {
  color: var(--secondary);
  font-size: 1.2rem;
}

.floating-1 {
  top: 15%;
  left: -40px;
  animation: float 6s ease-in-out infinite;
}

.floating-2 {
  bottom: 20%;
  right: -20px;
  animation: float 7s ease-in-out infinite 1s;
}

.floating-3 {
  bottom: 10%;
  left: 20px;
  animation: float 8s ease-in-out infinite 2s;
}

/* Inner Page Banner Hero */
.inner-hero {
  padding: 160px 0 100px;
  background: linear-gradient(135deg, #072a4b 0%, #0F4C81 100%);
  color: #FFFFFF;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.inner-hero h1 {
  font-size: 3rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 16px;
}

.breadcrumbs {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-headings);
}

.breadcrumbs a:hover {
  color: var(--accent);
}

.breadcrumbs span {
  color: var(--accent);
}

/* --- Cards (General / Reusable) --- */
.glass-card {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 20px;
  box-shadow: var(--shadow-glass);
  padding: 30px;
  transition: all var(--transition-normal);
}

.glass-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(24, 183, 216, 0.3);
}

/* Feature Cards Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.feature-card {
  text-align: left;
}

.feature-icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: #FFFFFF;
  font-size: 1.5rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--primary);
}

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

/* Course Cards Grid */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.course-card {
  background: #FFFFFF;
  border-radius: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.course-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(15, 76, 129, 0.15);
}

.course-header {
  padding: 24px 30px;
  background: var(--bg-light);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.course-level-badge {
  background: var(--primary-gradient);
  color: #FFFFFF;
  font-family: var(--font-headings);
  font-weight: 800;
  font-size: 1.5rem;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.course-level-title {
  text-align: right;
}

.course-level-title h3 {
  font-size: 1.25rem;
  margin-bottom: 4px;
}

.course-level-title span {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.course-body {
  padding: 30px;
  flex-grow: 1;
}

.course-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.course-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 24px;
  font-size: 0.9rem;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
}

.course-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dark);
  font-weight: 500;
}

.course-meta-item i {
  color: var(--secondary);
}

.course-highlights {
  margin-bottom: 28px;
}

.course-highlights h4 {
  font-size: 0.95rem;
  margin-bottom: 12px;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.course-highlights li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.course-highlights li i {
  color: var(--secondary);
  font-size: 0.85rem;
}

.course-footer {
  padding: 0 30px 30px;
}

.course-footer .btn {
  width: 100%;
}

/* --- Countdown Timer --- */
.countdown-box {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 16px;
  padding: 20px;
  margin-top: 24px;
  max-width: 480px;
}

.countdown-box h4 {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 12px;
  text-align: center;
  letter-spacing: 1px;
}

.countdown-timer {
  display: flex;
  justify-content: space-around;
}

.timer-segment {
  text-align: center;
}

.timer-number {
  font-family: var(--font-headings);
  font-size: 1.75rem;
  font-weight: 800;
  color: #FFFFFF;
}

.timer-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.5px;
}

/* --- About Preview Section --- */
.about-preview-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  align-items: center;
  gap: 60px;
}

.about-preview-images {
  position: relative;
}

.about-preview-img-1 {
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 6px solid #FFFFFF;
}

.about-preview-img-2 {
  position: absolute;
  bottom: -40px;
  right: -40px;
  width: 250px;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 6px solid #FFFFFF;
}

.about-preview-content h3 {
  font-size: 1.5rem;
  color: var(--secondary);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.about-preview-content p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* --- Learning Process Steps --- */
.process-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  margin-top: 40px;
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 2;
}

.process-step-num {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 4px solid var(--secondary);
  box-shadow: var(--shadow-md);
  color: var(--primary);
  font-family: var(--font-headings);
  font-size: 1.75rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  position: relative;
  transition: all var(--transition-normal);
}

.process-step:hover .process-step-num {
  background: var(--primary-gradient);
  color: #FFFFFF;
  border-color: #FFFFFF;
  transform: scale(1.1);
}

.process-step h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.process-step p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.process-connector {
  position: absolute;
  top: 35px;
  left: 10%;
  right: 10%;
  height: 3px;
  background: var(--border-color);
  z-index: 1;
}

/* --- Success Statistics Counter --- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-item h3 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 6px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.stat-item p {
  font-family: var(--font-headings);
  font-size: 1rem;
  color: var(--text-dark);
  font-weight: 600;
}

/* --- Testimonials --- */
.testimonial-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.testimonial-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all var(--transition-normal);
}

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

.quote-icon {
  position: absolute;
  top: 30px;
  right: 40px;
  font-size: 3rem;
  color: rgba(24, 183, 216, 0.1);
}

.stars {
  color: #FFB800;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.testimonial-text {
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.95rem;
  margin-bottom: 28px;
}

.student-info {
  display: flex;
  align-items: center;
  gap: 16px;
}

.student-img-placeholder {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--bg-light);
  border: 2px solid var(--secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-weight: 700;
}

.student-details h4 {
  font-size: 1rem;
  margin-bottom: 2px;
}

.student-details p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --- FAQ Accordions --- */
.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
}

.accordion-item {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
}

.accordion-item.active {
  border-color: var(--secondary);
  box-shadow: var(--shadow-md);
}

.accordion-header {
  width: 100%;
  padding: 20px 24px;
  background: #FFFFFF;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  transition: var(--transition-normal);
}

.accordion-header h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-dark);
}

.accordion-item.active .accordion-header h3 {
  color: var(--primary);
}

.accordion-icon {
  font-size: 1.1rem;
  color: var(--text-muted);
  transition: transform var(--transition-normal);
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
  color: var(--secondary);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
}

.accordion-item.active .accordion-content {
  max-height: 1000px;
  transition: max-height 0.5s cubic-bezier(1, 0, 1, 0);
}

.accordion-inner {
  padding: 0 24px 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  border-top: 1px solid var(--border-color);
  margin-top: 0;
  padding-top: 20px;
}

/* --- CTA Banner --- */
.cta-banner {
  background: var(--primary-gradient);
  border-radius: 30px;
  padding: 60px 40px;
  text-align: center;
  color: #FFFFFF;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.cta-banner-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(68, 212, 244, 0.25) 0%, transparent 60%);
  z-index: 1;
}

.cta-banner-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  margin: 0 auto;
}

.cta-banner h2 {
  color: #FFFFFF;
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-banner p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 30px;
}

/* --- Gallery & Lightbox --- */
.gallery-filter-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-tab {
  padding: 10px 20px;
  border-radius: 30px;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  font-family: var(--font-headings);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-tab:hover,
.filter-tab.active {
  background: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  grid-auto-rows: 240px;
  gap: 20px;
}

.gallery-item {
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.gallery-item.hide {
  display: none;
}

/* Masonry varying grid heights */
.gallery-item:nth-child(2n) {
  grid-row: span 2;
}

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

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 76, 129, 0.85);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
  color: #FFFFFF;
  padding: 20px;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-overlay i {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 12px;
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.gallery-item:hover .gallery-overlay i {
  transform: translateY(0);
}

.gallery-overlay h3 {
  font-size: 1.15rem;
  color: #FFFFFF;
  margin-bottom: 4px;
}

.gallery-overlay span {
  font-size: 0.85rem;
  color: var(--accent);
}

/* Lightbox Modal CSS */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 76, 129, 0.98);
  backdrop-filter: blur(8px);
  z-index: 10000;
  display: none;
  justify-content: center;
  align-items: center;
}

.lightbox.active {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 90%;
  max-height: 80%;
  animation: zoomIn 0.3s ease;
}

.lightbox-content img {
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  max-height: 80vh;
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: transparent;
  border: none;
  color: #FFFFFF;
  font-size: 2rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

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

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #FFFFFF;
  font-size: 2.5rem;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lightbox-nav:hover {
  background: var(--secondary);
  color: #FFFFFF;
}

.lightbox-prev {
  left: -80px;
}

.lightbox-next {
  right: -80px;
}

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

/* --- Contact Form & Details --- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
}

.contact-info-card {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.contact-detail-item {
  display: flex;
  gap: 20px;
}

.contact-detail-icon {
  width: 50px;
  height: 50px;
  background: rgba(24, 183, 216, 0.1);
  color: var(--secondary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-detail-text h4 {
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.contact-detail-text p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.contact-socials {
  margin-top: 10px;
}

.contact-socials h4 {
  font-size: 1rem;
  margin-bottom: 12px;
}

.social-icons-list {
  display: flex;
  gap: 12px;
}

.social-icon-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--bg-light);
  color: var(--primary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.social-icon-btn:hover {
  background: var(--primary-gradient);
  color: #FFFFFF;
  transform: translateY(-3px);
  border-color: transparent;
}

/* Form Glassmorphism */
.contact-form-glass {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: var(--shadow-lg);
  border-radius: 24px;
  padding: 40px;
}

.contact-form-title {
  margin-bottom: 24px;
}

.contact-form-title h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.contact-form-title p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

.form-label {
  display: block;
  font-family: var(--font-headings);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-dark);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.form-control {
  width: 100%;
  padding: 14px 20px;
  background: var(--bg-light);
  border: 1.5px solid var(--border-color);
  border-radius: 12px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-dark);
  transition: all var(--transition-fast);
}

.form-control:focus {
  border-color: var(--secondary);
  background: #FFFFFF;
  box-shadow: 0 0 0 4px rgba(24, 183, 216, 0.15);
}

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

/* Success Validation Animation Overlay */
.form-success-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-main);
  border-radius: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  z-index: 10;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  padding: 40px;
}

.form-success-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.success-check-circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(24, 183, 216, 0.1);
  color: var(--secondary);
  font-size: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  animation: scaleBounce 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes scaleBounce {
  0% { transform: scale(0.5); }
  60% { transform: scale(1.15); }
  100% { transform: scale(1); }
}

.map-container {
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  margin-top: 40px;
  height: 380px;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* --- Floating Sticky Buttons --- */
.floating-actions {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.float-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  color: #FFFFFF;
  font-size: 1.5rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
}

.float-btn:hover {
  transform: scale(1.1) translateY(-3px);
}

.float-whatsapp {
  background-color: #25D366;
}

.float-call {
  background-color: var(--primary);
}

.float-back-to-top {
  background-color: var(--secondary);
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
}

.float-back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* --- Footer --- */
.footer {
  background: #092138;
  color: #FFFFFF;
  padding: 80px 0 30px;
  font-size: 0.95rem;
  border-top: 4px solid var(--secondary);
}

.footer h3 {
  color: #FFFFFF;
  font-size: 1.2rem;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 8px;
}

.footer h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 35px;
  height: 2px;
  background: var(--secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-logo img {
  height: 48px;
  width: auto;
  margin-bottom: 20px;
}

.footer-about p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 6px;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  color: rgba(255, 255, 255, 0.7);
}

.footer-contact i {
  color: var(--secondary);
  font-size: 1.1rem;
  margin-top: 3px;
}

.footer-newsletter p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 20px;
}

.newsletter-form {
  display: flex;
  gap: 10px;
}

.newsletter-input {
  flex-grow: 1;
  padding: 12px 18px;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.05);
  color: #FFFFFF;
  font-family: var(--font-body);
  font-size: 0.9rem;
}

.newsletter-input:focus {
  border-color: var(--secondary);
  background: rgba(255, 255, 255, 0.1);
}

.newsletter-form .btn {
  padding: 12px 20px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom-links a:hover {
  color: var(--accent);
}

/* --- Level Comparison Table --- */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  background: #FFFFFF;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th {
  background: var(--bg-light);
  color: var(--primary);
  font-family: var(--font-headings);
  font-weight: 700;
  padding: 18px 24px;
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.comparison-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-dark);
  font-size: 0.95rem;
}

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

.comparison-table tr:hover td {
  background: rgba(24, 183, 216, 0.02);
}

.level-indicator {
  font-weight: 700;
  color: var(--primary);
}

/* --- Study/Visa Section Timeline & Grid --- */
.visa-opportunities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 30px;
}

.about-timeline {
  position: relative;
  max-width: 800px;
  margin: 40px auto 0;
}

.about-timeline::after {
  content: '';
  position: absolute;
  width: 3px;
  background-color: var(--border-color);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -1.5px;
}

.timeline-container-item {
  padding: 10px 40px;
  position: relative;
  background-color: inherit;
  width: 50%;
}

.timeline-container-item::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  right: -10px;
  background-color: #FFFFFF;
  border: 4px solid var(--secondary);
  top: 15px;
  border-radius: 50%;
  z-index: 1;
}

.timeline-left {
  left: 0;
}

.timeline-right {
  left: 50%;
}

.timeline-right::after {
  left: -10px;
}

.timeline-content {
  padding: 24px;
  background: var(--bg-light);
  position: relative;
  border-radius: 16px;
  border: 1px solid var(--border-color);
}

.timeline-date {
  font-family: var(--font-headings);
  font-weight: 800;
  color: var(--secondary);
  font-size: 1.1rem;
  margin-bottom: 8px;
}

/* --- Animated World Map / German Highlights --- */
.map-visual-container {
  background: var(--bg-light);
  border-radius: 24px;
  padding: 40px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.world-map-svg {
  width: 100%;
  max-width: 700px;
  height: auto;
}

.map-marker {
  animation: pulseMarker 2s infinite;
}

@keyframes pulseMarker {
  0% { transform: scale(0.95); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.5; }
}

/* --- Animation Classes (Scroll Reveal) --- */
.reveal-on-scroll {
  opacity: 0;
  transition: all var(--transition-slow);
}

.fade-up {
  transform: translateY(40px);
}

.fade-left {
  transform: translateX(-40px);
}

.fade-right {
  transform: translateX(40px);
}

.reveal-on-scroll.visible {
  opacity: 1;
  transform: translate(0) scale(1);
}

/* Floating animation keyframes */
@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-15px);
  }
  100% {
    transform: translateY(0px);
  }
}

/* --- Responsive Media Queries (Mobile First approach overrides) --- */

@media (max-width: 1024px) {
  :root {
    --header-height: 70px;
  }
  
  .hero-title {
    font-size: 2.75rem;
  }
  
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 50px;
  }
  
  .hero-content {
    padding-right: 0;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .countdown-box {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-image-container {
    transform: none;
    max-width: 500px;
    margin: 0 auto;
  }
  
  .about-preview-grid {
    grid-template-columns: 1fr;
    gap: 80px;
  }
  
  .about-preview-img-2 {
    bottom: -30px;
    right: 0px;
    width: 200px;
  }
  
  .process-flow {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  
  .process-connector {
    display: none;
  }
  
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  
  .about-timeline::after {
    left: 30px;
  }
  
  .timeline-container-item {
    width: 100%;
    padding-left: 60px;
    padding-right: 0;
  }
  
  .timeline-container-item::after {
    left: 20px;
    right: auto;
  }
  
  .timeline-right {
    left: 0%;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 70px 0;
  }
  
  .section-header {
    margin-bottom: 40px;
  }
  
  .section-header h2 {
    font-size: 1.85rem;
  }
  
  .hamburger {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: -100%;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: var(--bg-card);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 40px;
    gap: 20px;
    box-shadow: var(--shadow-lg);
    transition: left var(--transition-normal);
    z-index: 999;
    overflow-y: auto;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .header-transparent .nav-link {
    color: var(--text-dark);
  }

  [data-theme="dark"] .header-transparent .nav-link {
    color: var(--text-dark);
  }
  
  .header-transparent .hamburger-line {
    background-color: #FFFFFF;
  }
  
  .header-transparent.header-scrolled .hamburger-line {
    background-color: var(--primary);
  }
  
  .nav-link {
    font-size: 1.1rem;
    padding: 10px 24px;
    width: 80%;
    text-align: center;
  }

  .nav-actions {
    flex-direction: column;
    gap: 16px;
    margin-top: 10px;
  }
  }
  
  .lightbox-prev,
  .lightbox-next {
    width: 45px;
    height: 45px;
    font-size: 1.8rem;
  }
  
  .lightbox-prev {
    left: -10px;
  }
  
  .lightbox-next {
    right: -10px;
  }
}

@media (max-width: 576px) {
  :root {
    --header-height: 60px;
  }
  
  .hero-title {
    font-size: 2.15rem;
  }
  
  .hero-subheading {
    font-size: 1.05rem;
  }
  
  .process-flow {
    grid-template-columns: 1fr;
  }
  
  .stats-bar {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .contact-form-glass {
    padding: 24px 20px;
  }
}

/* --- Theme Toggle Switcher Button --- */
.theme-toggle-btn {
  background: var(--bg-glass-dark);
  border: 1px solid var(--border-color);
  color: var(--text-dark);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
  margin-left: 10px;
}

.theme-toggle-btn:hover {
  transform: rotate(15deg) scale(1.1);
  background: var(--primary-gradient);
  color: #FFFFFF;
  border-color: transparent;
  box-shadow: var(--shadow-glow);
}

/* --- German Cultural & CEFR Badging --- */
.german-accent-bar {
  display: inline-flex;
  gap: 3px;
  height: 4px;
  width: 36px;
  border-radius: 2px;
  overflow: hidden;
  vertical-align: middle;
  margin-right: 6px;
}
.german-accent-bar span:nth-child(1) { background: #000000; flex: 1; }
.german-accent-bar span:nth-child(2) { background: #DD0000; flex: 1; }
.german-accent-bar span:nth-child(3) { background: #FFCE00; flex: 1; }

.cefr-badge-gold {
  background: var(--gold-gradient);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
}

/* --- Level Finder Quiz Modal & Card --- */
.level-finder-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 36px;
  box-shadow: var(--shadow-lg);
  margin-top: 30px;
  position: relative;
  overflow: hidden;
}

.level-finder-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary-gradient);
}

.quiz-option-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.quiz-option-btn {
  background: var(--bg-light);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 16px 20px;
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-dark);
  font-family: var(--font-headings);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.quiz-option-btn:hover, .quiz-option-btn.selected {
  border-color: var(--secondary);
  background: var(--bg-card);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--primary);
}

.quiz-progress-bar {
  width: 100%;
  height: 6px;
  background: var(--border-color);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 24px;
}

.quiz-progress-fill {
  height: 100%;
  width: 33%;
  background: var(--accent-gradient);
  transition: width 0.3s ease;
}

/* --- CEFR Fee & Duration Calculator --- */
.calc-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

@media (max-width: 992px) {
  .calc-grid {
    grid-template-columns: 1fr;
  }
}

.calc-result-box {
  background: var(--primary-gradient);
  color: #FFFFFF;
  border-radius: 18px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-md);
}

.calc-price-display {
  font-size: 2.75rem;
  font-weight: 800;
  font-family: var(--font-headings);
  margin: 16px 0;
  color: #FFFFFF;
}

/* --- Instant FAQ Search Bar --- */
.faq-search-wrapper {
  max-width: 600px;
  margin: 0 auto 40px auto;
  position: relative;
}

.faq-search-input {
  width: 100%;
  padding: 16px 24px 16px 54px;
  border-radius: 50px;
  border: 2px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-dark);
  font-size: 1rem;
  font-family: var(--font-body);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.faq-search-input:focus {
  border-color: var(--secondary);
  box-shadow: var(--shadow-glow);
}

.faq-search-icon {
  position: absolute;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* --- Floating Action Button (FAB) Quick Contact --- */
.fab-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1050;
}

.fab-main-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #FFFFFF;
  border: none;
  font-size: 1.4rem;
  box-shadow: 0 8px 24px rgba(24, 183, 216, 0.4);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.fab-main-btn:hover {
  transform: scale(1.1) rotate(10deg);
}

.fab-options {
  position: absolute;
  bottom: 70px;
  right: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(15px);
  transition: all var(--transition-fast);
}

.fab-container.active .fab-options {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.fab-option-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  padding: 10px 18px;
  border-radius: 30px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  color: var(--text-dark);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  white-space: nowrap;
  transition: transform var(--transition-fast);
}

.fab-option-item:hover {
  transform: translateX(-4px);
  color: var(--primary);
}

.fab-option-item i {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-size: 0.95rem;
}

.fab-icon-wa { background: #25D366; }
.fab-icon-call { background: #3B82F6; }
.fab-icon-demo { background: var(--gold-gradient); }

/* --- Quick Modal Dialog --- */
.app-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.app-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  width: 100%;
  max-width: 560px;
  padding: 36px;
  position: relative;
  box-shadow: var(--shadow-lg);
  transform: scale(0.92);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-modal.active .modal-content {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--bg-light);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--text-dark);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--border-color);
}

/* --- Dark Mode Specific Card Overrides --- */
[data-theme="dark"] .glass-card,
[data-theme="dark"] .course-card,
[data-theme="dark"] .pricing-card,
[data-theme="dark"] .about-card,
[data-theme="dark"] .method-card,
[data-theme="dark"] .faq-item,
[data-theme="dark"] .gallery-card,
[data-theme="dark"] .testimonial-card,
[data-theme="dark"] .accordion-item {
  background-color: var(--bg-card);
  border-color: var(--border-color);
}

[data-theme="dark"] .accordion-header,
[data-theme="dark"] .form-control {
  background-color: var(--bg-light);
  color: var(--text-dark);
  border-color: var(--border-color);
}

[data-theme="dark"] .nav-menu {
  background-color: var(--bg-card);
}

/* --- Mobile Navigation Drawer Backdrop --- */
.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 999;
}

.nav-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

/* ==========================================================================
   COMPREHENSIVE MULTI-DEVICE RESPONSIVE BREAKPOINT SYSTEM
   ========================================================================== */

/* --- 1. Large Desktops & Laptops (Max-width: 1200px) --- */
@media (max-width: 1200px) {
  :root {
    --container-width: 100%;
  }

  .container {
    padding: 0 32px;
  }

  .nav-menu {
    gap: 12px;
  }

  .nav-link {
    padding: 6px 10px;
    font-size: 0.88rem;
  }

  .course-grid,
  .why-us-grid,
  .stats-grid {
    gap: 24px;
  }
}

/* --- 2. Tablets & Small Laptops (Max-width: 992px) --- */
@media (max-width: 992px) {
  .header {
    height: 72px;
  }

  .hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    transition: background 0.3s ease;
  }

  [data-theme="dark"] .hamburger {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
  }

  /* Mobile Slide-in Drawer Navigation */
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    max-width: 85vw;
    height: 100vh;
    background: var(--bg-card);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 85px 28px 40px;
    box-shadow: -10px 0 35px rgba(0, 0, 0, 0.25);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    overflow-y: auto;
    border-left: 1px solid var(--border-color);
  }

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

  .nav-link {
    color: var(--text-dark) !important;
    font-size: 1.05rem;
    padding: 12px 18px;
    border-radius: 12px;
    font-weight: 600;
    text-shadow: none !important;
    width: 100%;
    text-align: left;
    display: block;
  }

  .nav-link:hover,
  .nav-link.active {
    background: rgba(24, 183, 216, 0.12);
    color: var(--secondary) !important;
    transform: translateX(4px);
  }

  .nav-actions {
    flex-direction: column-reverse;
    width: 100%;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    gap: 16px;
    align-items: stretch;
  }

  .nav-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 14px;
  }

  .theme-toggle-btn {
    align-self: flex-start;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    color: var(--text-dark);
  }

  /* Hero Layout Stack */
  .hero {
    min-height: auto;
    padding: 130px 0 80px;
  }

  .hero-content-wrapper,
  .hero-grid {
    grid-template-columns: 1fr !important;
    text-align: center;
    gap: 48px;
  }

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

  .hero-text p,
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
    max-width: 640px;
  }

  .hero-cta-group,
  .hero-buttons {
    justify-content: center;
    width: 100%;
    gap: 16px;
  }

  .hero-image-wrapper {
    margin: 0 auto;
    max-width: 520px;
    width: 100%;
  }

  /* Standard Grid Fallbacks */
  .course-grid,
  .why-us-grid,
  .features-grid,
  .faculty-grid,
  .about-grid,
  .methods-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .contact-wrapper,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
}

/* --- 3. Mobile Devices / Tablets Portrait (Max-width: 768px) --- */
@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .section-header h2 {
    font-size: 1.85rem;
  }

  .section-header p {
    font-size: 1rem;
  }

  h1 { font-size: 2.1rem; }
  h2 { font-size: 1.7rem; }
  h3 { font-size: 1.3rem; }

  /* 1-Column Stacks for Mobile */
  .course-grid,
  .why-us-grid,
  .pricing-grid,
  .features-grid,
  .faculty-grid,
  .about-grid,
  .methods-grid,
  .gallery-grid,
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 20px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .form-row {
    grid-template-columns: 1fr !important;
    gap: 16px;
  }

  /* Gallery Filters Touch Scrollable Bar */
  .gallery-filters,
  .filter-tabs {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 12px;
    gap: 10px;
    justify-content: flex-start;
    margin-bottom: 30px;
  }

  .gallery-filters::-webkit-scrollbar,
  .filter-tabs::-webkit-scrollbar {
    display: none;
  }

  .filter-tab {
    flex-shrink: 0;
    white-space: nowrap;
    font-size: 0.88rem;
    padding: 10px 20px;
    border-radius: 30px;
  }

  /* Interactive Quiz & Fee Calculator Polish */
  .quiz-card,
  .calc-card,
  .level-finder-widget,
  .fee-calculator-widget {
    padding: 24px 20px;
    border-radius: 20px;
  }

  .quiz-options {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .calc-form,
  .calc-results-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Form & Modal Adjustments */
  .modal-content {
    padding: 28px 20px;
    border-radius: 20px;
    max-width: 92vw;
  }

  .lightbox-content img {
    max-height: 65vh;
  }

  .lightbox-prev,
  .lightbox-next {
    width: 42px;
    height: 42px;
    font-size: 1.1rem;
  }

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

  /* Floating Action Buttons Positioning to prevent overlap */
  .float-back-to-top {
    bottom: 92px;
    right: 18px;
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }

  .fab-container {
    bottom: 18px;
    right: 18px;
  }

  .fab-main-btn {
    width: 56px;
    height: 56px;
    font-size: 1.3rem;
  }
}

/* --- 4. Extra Small Phones (Max-width: 480px) --- */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .section {
    padding: 50px 0;
  }

  .hero {
    padding: 110px 0 60px;
  }

  .hero-title {
    font-size: 1.8rem;
    line-height: 1.25;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .hero-cta-group .btn {
    width: 100%;
    justify-content: center;
  }

  /* Badge Floats on Mobile Hero */
  .badge-float {
    transform: scale(0.85);
    padding: 8px 12px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .stat-card {
    padding: 20px 16px;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  .course-card,
  .why-card,
  .testimonial-card,
  .about-card,
  .method-card {
    padding: 22px 18px;
    border-radius: 18px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* ==========================================================================
   DESIGN AESTHETICS & UI ENHANCEMENTS
   ========================================================================== */

/* Enhanced Card Elevation & Micro-interactions */
.course-card,
.glass-card,
.why-card,
.testimonial-card,
.about-card,
.method-card,
.pricing-card {
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), 
              box-shadow 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.course-card:hover,
.glass-card:hover,
.why-card:hover,
.testimonial-card:hover,
.about-card:hover,
.method-card:hover,
.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), 0 0 25px rgba(24, 183, 216, 0.2);
  border-color: rgba(24, 183, 216, 0.4);
}

/* Glassmorphism Refinements */
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 24px;
}

[data-theme="dark"] .glass-card {
  background: rgba(30, 41, 59, 0.75);
  border-color: rgba(255, 255, 255, 0.12);
}

/* Input Focus Glow Refinements */
.form-control:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 4px rgba(24, 183, 216, 0.2);
}