/* ======================================================
   NITHIN REDDY K — Guidewire PolicyCenter Training
   Premium Coaching Website Stylesheet
   ====================================================== */

/* ---------- CSS Variables ---------- */
:root {
  --primary: #0a0e1a;
  --primary-light: #111827;
  --primary-lighter: #1e293b;
  --secondary: #0f172a;
  --accent: #f5a623;
  --accent-dark: #d48f16;
  --accent-light: #fbbf4a;
  --accent-glow: rgba(245, 166, 35, 0.3);
  --dark: #060d17;
  --text: #cbd5e1;
  --text-muted: #64748b;
  --text-light: #f1f5f9;
  --white: #ffffff;
  --card-bg: rgba(15, 23, 42, 0.7);
  --glass: rgba(255, 255, 255, 0.04);
  --border: rgba(203, 213, 225, 0.08);
  --whatsapp: #25D366;
  --whatsapp-dark: #1da851;

  /* Enhanced Gradients */
  --gradient-primary: linear-gradient(135deg, #0a0e1a 0%, #111827 30%, #1e1b4b 100%);
  --gradient-secondary: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #2e1065 100%);
  --gradient-accent: linear-gradient(135deg, #f5a623 0%, #f7c948 40%, #f59e0b 100%);
  --gradient-accent-subtle: linear-gradient(135deg, rgba(245, 166, 35, 0.05), rgba(245, 166, 35, 0.12));
  --gradient-text: linear-gradient(135deg, #f5a623 0%, #fbbf4a 40%, #f59e0b 100%);
  --gradient-hero: linear-gradient(135deg, #0a0e1a 0%, #111827 30%, #1e1b4b 60%, #0f172a 100%);
  --gradient-card: linear-gradient(145deg, rgba(15, 23, 42, 0.8), rgba(30, 27, 75, 0.4));
  --gradient-overlay: linear-gradient(180deg, transparent 0%, rgba(10, 14, 26, 0.8) 100%);
  --gradient-overlay-right: linear-gradient(90deg, rgba(10, 14, 26, 0.9) 0%, transparent 100%);
  --gradient-mesh: radial-gradient(ellipse at 20% 50%, rgba(245, 166, 35, 0.06) 0%, transparent 60%),
                   radial-gradient(ellipse at 80% 50%, rgba(139, 92, 246, 0.06) 0%, transparent 60%),
                   radial-gradient(ellipse at 50% 0%, rgba(59, 130, 246, 0.04) 0%, transparent 60%);
  --gradient-border: linear-gradient(135deg, rgba(245, 166, 35, 0.3), rgba(139, 92, 246, 0.3), rgba(59, 130, 246, 0.3));

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 40px rgba(245, 166, 35, 0.08);
  --shadow-glow-strong: 0 0 60px rgba(245, 166, 35, 0.15);
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Playfair Display', serif;
  --max-width: 1200px;
  --nav-height: 76px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--primary);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }

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

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: var(--primary-lighter); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ---------- Preloader ---------- */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s, visibility 0.6s;
}
#preloader.hidden { opacity: 0; visibility: hidden; }
.loader-ring {
  width: 50px; height: 50px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

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

/* ---------- Gradient Mesh BG (shared) ---------- */
.gradient-mesh {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  background: var(--gradient-mesh);
}

/* ---------- Section Divider Gradient ---------- */
.section-divider {
  height: 2px;
  background: var(--gradient-border);
  opacity: 0.3;
  margin: 0;
  border: none;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 32px;
  border-radius: 50px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  letter-spacing: 0.01em;
}
.btn i { font-size: 1.1em; }
.btn-sm { padding: 10px 22px; font-size: 0.85rem; }
.btn-lg { padding: 18px 42px; font-size: 1.05rem; }
.btn-block { width: 100%; }

.btn-primary {
  background: var(--gradient-accent);
  color: var(--primary);
  border-color: transparent;
  box-shadow: 0 4px 20px var(--accent-glow);
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: var(--transition);
}
.btn-primary:hover::before { opacity: 1; }
.btn-primary:hover {
  box-shadow: 0 8px 30px var(--accent-glow);
  transform: translateY(-2px);
  color: var(--primary);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--gradient-accent-subtle);
}

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.3);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
}

.btn-whatsapp {
  background: var(--whatsapp);
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
}
.btn-whatsapp:hover {
  background: var(--whatsapp-dark);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.4);
  transform: translateY(-2px);
}

/* Gradient Border Button */
.btn-gradient-border {
  background: transparent;
  color: var(--text-light);
  border: 2px solid transparent;
  background-image: linear-gradient(var(--primary), var(--primary)), var(--gradient-border);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  position: relative;
}
.btn-gradient-border:hover {
  color: var(--accent);
  box-shadow: 0 0 30px rgba(245, 166, 35, 0.1);
}

/* ---------- Section Styling ---------- */
.section {
  padding: 100px 0;
  position: relative;
}
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}
.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(245, 166, 35, 0.08);
  padding: 8px 20px;
  border-radius: 50px;
  margin-bottom: 16px;
  border: 1px solid rgba(245, 166, 35, 0.12);
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--text-light);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Reveal Animations ---------- */
.reveal-up, .reveal-left, .reveal-right {
  opacity: 0;
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.reveal-up { transform: translateY(50px); }
.reveal-left { transform: translateX(-50px); }
.reveal-right { transform: translateX(50px); }
.reveal-up.visible, .reveal-left.visible, .reveal-right.visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* ---------- Image Gradient Overlay (shared) ---------- */
.img-overlay {
  position: relative;
  overflow: hidden;
}
.img-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-overlay);
  pointer-events: none;
}
.img-overlay-right::after {
  background: var(--gradient-overlay-right);
}

/* ==================== NAVBAR ==================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Logo */
.nav-logo {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-light);
  line-height: 1.1;
}
.logo-accent { color: var(--accent); }
.logo-tag {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 500;
}

/* Nav Toggle (Hamburger) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}
.nav-toggle span {
  display: block;
  width: 28px;
  height: 2.5px;
  background: var(--text);
  border-radius: 4px;
  transition: var(--transition);
  transform-origin: center;
}
.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 4px 0;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: var(--transition);
  border-radius: 2px;
}
.nav-link:hover::after,
.nav-link.active::after { width: 100%; }
.nav-link:hover { color: var(--accent); }
.nav-link.active { color: var(--accent); }

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ==================== HERO ==================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
  background: var(--gradient-hero);
}
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-mesh);
}
.hero-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.12;
}
.hero-shape-1 {
  width: 600px; height: 600px;
  background: var(--accent);
  top: -200px; right: -200px;
  animation: float 20s ease-in-out infinite;
}
.hero-shape-2 {
  width: 500px; height: 500px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  bottom: -150px; left: -150px;
  animation: float 15s ease-in-out infinite reverse;
}
.hero-shape-3 {
  width: 350px; height: 350px;
  background: linear-gradient(135deg, #3b82f6, #06b6d4);
  top: 40%; left: 60%;
  animation: float 18s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-container {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(245, 166, 35, 0.08);
  border: 1px solid rgba(245, 166, 35, 0.12);
  padding: 10px 24px;
  border-radius: 50px;
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}
.hero-badge i { font-size: 1em; }

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  color: var(--text-light);
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero-desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}
.stat-item {
  display: flex;
  align-items: baseline;
  gap: 2px;
  flex-wrap: wrap;
  justify-content: center;
}
.stat-number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-light);
}
.stat-plus, .stat-pct {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
}
.stat-label {
  display: block;
  width: 100%;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  font-weight: 500;
}
.stat-stars {
  display: flex;
  gap: 2px;
  margin-left: 8px;
  color: var(--accent);
  font-size: 0.8rem;
}

/* ==================== ABOUT ==================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: center;
}
.about-img-frame {
  position: relative;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
}
.about-image-wrap {
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border);
}
.about-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.about-image-wrap:hover img { transform: scale(1.03); }
.about-image-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10,14,26,0.6));
  pointer-events: none;
}

.about-exp-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--gradient-accent);
  color: var(--primary);
  padding: 22px;
  border-radius: 16px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  line-height: 1.2;
  z-index: 2;
}
.exp-number {
  display: block;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
}
.exp-text {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.about-content p {
  margin-bottom: 16px;
  color: var(--text);
  font-size: 1.02rem;
}
.about-content strong { color: var(--text-light); }

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 28px 0;
}
.highlight-item {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.95rem;
  color: var(--text);
}
.highlight-item i {
  color: var(--accent);
  font-size: 1.1rem;
  width: 24px;
  text-align: center;
}

/* ==================== COURSES (index) ==================== */
.courses {
  background: var(--gradient-secondary);
}
.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.course-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  overflow: hidden;
}
.course-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-border);
  opacity: 0;
  transition: var(--transition);
}
.course-card:hover::before { opacity: 1; }
.course-card:hover {
  transform: translateY(-8px);
  border-color: rgba(245, 166, 35, 0.15);
  box-shadow: var(--shadow-md), var(--shadow-glow-strong);
}
.course-card-featured {
  border-color: rgba(245, 166, 35, 0.2);
  background: linear-gradient(145deg, rgba(30, 27, 75, 0.6), rgba(15, 23, 42, 0.8));
  box-shadow: var(--shadow-glow);
}

.course-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 6px 16px;
  border-radius: 50px;
}
.course-badge.popular {
  background: var(--gradient-accent);
  color: var(--primary);
}
.course-badge.featured {
  background: linear-gradient(135deg, #dc2626, #ef4444);
  color: white;
}
.course-badge.new {
  background: linear-gradient(135deg, #059669, #10b981);
  color: white;
}

.course-icon {
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(245, 166, 35, 0.1);
  border-radius: 16px;
  margin-bottom: 20px;
  font-size: 1.5rem;
  color: var(--accent);
  transition: var(--transition);
}
.course-card:hover .course-icon {
  background: rgba(245, 166, 35, 0.2);
  transform: scale(1.05);
}

.course-title {
  font-size: 1.15rem;
  color: var(--text-light);
  line-height: 1.4;
  margin-bottom: 12px;
}
.course-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.6;
}
.course-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  flex: 1;
}
.course-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text);
}
.course-features li i {
  color: var(--accent);
  font-size: 0.9rem;
  flex-shrink: 0;
}
.course-footer {
  border-top: 1px solid var(--border);
  padding-top: 20px;
}
.course-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.course-meta i { margin-right: 6px; }

/* ==================== FEATURES ==================== */
.features {
  background: var(--gradient-secondary);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--gradient-border);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover::before { opacity: 1; }
.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(245, 166, 35, 0.12);
  box-shadow: var(--shadow-glow);
}
.feature-icon {
  width: 64px; height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(245, 166, 35, 0.1);
  border-radius: 50%;
  margin: 0 auto 20px;
  font-size: 1.5rem;
  color: var(--accent);
  transition: var(--transition);
}
.feature-card:hover .feature-icon {
  background: var(--gradient-accent);
  color: var(--primary);
  transform: scale(1.1) rotate(-5deg);
}
.feature-card h3 {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ==================== COUNTER ==================== */
.counter-section {
  padding: 80px 0;
  background: var(--dark);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.counter-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-mesh);
  pointer-events: none;
}
.counter-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
  position: relative;
  z-index: 1;
}
.counter-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.counter-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.counter-suffix {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-left: 2px;
}
.counter-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 8px;
  font-weight: 500;
}

/* ==================== TESTIMONIALS ==================== */
.testimonials {
  background: var(--gradient-secondary);
}
.testimonials-slider {
  position: relative;
  max-width: 750px;
  margin: 0 auto;
  overflow: hidden;
}
.testimonial-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.testimonial-card {
  min-width: 100%;
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 36px;
  backdrop-filter: blur(10px);
}
.testimonial-stars {
  color: var(--accent);
  margin-bottom: 20px;
  font-size: 1rem;
  letter-spacing: 4px;
}
.testimonial-text {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 24px;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.testimonial-avatar {
  width: 48px; height: 48px;
  background: var(--gradient-accent);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.testimonial-author div strong {
  display: block;
  color: var(--text-light);
  font-size: 0.95rem;
}
.testimonial-author div span {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.testimonial-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 32px;
}
.testimonial-btn {
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
}
.testimonial-btn:hover {
  background: var(--gradient-accent);
  color: var(--primary);
  border-color: var(--accent);
}
.testimonial-dots {
  display: flex;
  gap: 8px;
}
.testimonial-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.testimonial-dot.active {
  background: var(--accent);
  width: 28px;
  border-radius: 10px;
}

/* ==================== BLOG ==================== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.blog-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition);
}
.blog-card:hover {
  transform: translateY(-6px);
  border-color: rgba(245, 166, 35, 0.12);
  box-shadow: var(--shadow-glow);
}
.blog-image {
  height: 200px;
  overflow: hidden;
  position: relative;
}
.blog-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.blog-card:hover .blog-image img { transform: scale(1.08); }
.blog-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10,14,26,0.6));
  pointer-events: none;
}

.blog-content {
  padding: 24px;
}
.blog-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
}
.blog-title {
  font-size: 1.05rem;
  color: var(--text-light);
  line-height: 1.4;
  margin-bottom: 10px;
  transition: var(--transition);
}
.blog-card:hover .blog-title { color: var(--accent); }
.blog-excerpt {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}
.blog-link {
  font-size: 0.88rem;
  font-weight: 600;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.blog-link i { transition: var(--transition); }
.blog-link:hover i { transform: translateX(4px); }

/* ==================== CTA BANNER ==================== */
.cta-banner {
  padding: 100px 0;
  background: var(--gradient-hero);
  text-align: center;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(245,166,35,0.06), transparent 70%),
              radial-gradient(ellipse at 30% 50%, rgba(99,102,241,0.04), transparent 50%);
}
.cta-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}
.cta-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--text-light);
  line-height: 1.2;
  margin-bottom: 16px;
}
.cta-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  line-height: 1.7;
}
.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.cta-small {
  margin-top: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==================== CONTACT ==================== */
.contact {
  background: var(--gradient-secondary);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: start;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact-icon {
  width: 50px; height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-accent-subtle);
  border-radius: 14px;
  color: var(--accent);
  font-size: 1.2rem;
  flex-shrink: 0;
}
.contact-info-item h4 {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.contact-info-item a {
  font-size: 1rem;
  color: var(--text-light);
  font-weight: 500;
  word-break: break-all;
}
.contact-info-item a:hover { color: var(--accent); }
.contact-info-item span {
  font-size: 0.95rem;
  color: var(--text);
}

.contact-social {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}
.contact-social a {
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 1.1rem;
  transition: var(--transition);
}
.contact-social a:hover {
  background: var(--gradient-accent);
  color: var(--primary);
  border-color: var(--accent);
  transform: translateY(-3px);
}

/* Contact Form */
.contact-form {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px;
  backdrop-filter: blur(10px);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  background: rgba(245, 166, 35, 0.04);
  box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}
.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2364748b' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}
.form-group select option {
  background: var(--primary);
  color: var(--text);
}

/* ==================== FOOTER ==================== */
.footer {
  background: var(--dark);
  padding: 80px 0 0;
  border-top: 1px solid var(--border);
  position: relative;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0; right: 0;
  height: 1px;
  background: var(--gradient-border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .nav-logo { margin-bottom: 16px; }
.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 320px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-muted);
  transition: var(--transition);
}
.footer-social a:hover {
  background: var(--gradient-accent);
  color: var(--primary);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.footer-links h4 {
  color: var(--text-light);
  font-size: 1rem;
  margin-bottom: 20px;
  font-weight: 600;
}
.footer-links a {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 12px;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-links a i {
  width: 20px;
  margin-right: 6px;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==================== WHATSAPP FLOAT ==================== */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 56px;
  height: 56px;
  background: var(--whatsapp);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  z-index: 999;
  box-shadow: 0 4px 24px rgba(37, 211, 102, 0.4);
  transition: var(--transition);
  animation: pulseWhatsApp 2s ease-in-out infinite;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.5);
  color: white;
}
@keyframes pulseWhatsApp {
  0%, 100% { box-shadow: 0 4px 24px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 40px rgba(37, 211, 102, 0.7); }
}

/* ======================================================
   RESPONSIVE DESIGN
   ====================================================== */

/* Tablets & Small Laptops */
@media (max-width: 1024px) {
  .courses-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}

/* Tablets */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-image { order: -1; }
  .about-img-wrap { max-width: 300px; margin: 0 auto; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* Mobile Large */
@media (max-width: 768px) {
  :root { --nav-height: 64px; }
  .section { padding: 64px 0; }

  /* Navbar */
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    inset: 0;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 40px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
  }
  .nav-menu.active {
    opacity: 1;
    visibility: visible;
  }
  .nav-list {
    flex-direction: column;
    gap: 20px;
  }
  .nav-link { font-size: 1.1rem; }
  .nav-cta { flex-direction: column; gap: 12px; }

  /* Hero */
  .hero { padding: 100px 0 60px; }
  .hero-stats { gap: 24px; }
  .stat-number { font-size: 1.8rem; }

  /* Courses */
  .courses-grid { grid-template-columns: 1fr; gap: 24px; }

  /* Features */
  .features-grid { grid-template-columns: 1fr; gap: 20px; }

  /* Counter */
  .counter-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .counter-number { font-size: 2.4rem; }

  /* Blog */
  .blog-grid { grid-template-columns: 1fr; gap: 24px; }

  /* CTA */
  .cta-banner { padding: 64px 0; }

  /* Contact */
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 24px; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer { padding: 48px 0 0; }

  .whatsapp-float { width: 48px; height: 48px; font-size: 1.3rem; bottom: 20px; right: 20px; }
}

/* Mobile Small */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { width: 100%; }
  .hero-stats { gap: 16px; }
  .testimonial-card { padding: 28px 20px; }
  .cta-buttons { flex-direction: column; align-items: stretch; }
  .cta-buttons .btn { width: 100%; }
}

/* ======================================================
   FORM CONFIRMATION
   ====================================================== */
.form-confirmation {
  display: none;
  text-align: center;
  padding: 40px 20px;
}
.form-confirmation.show { display: block; }
.form-confirmation i {
  font-size: 3rem;
  color: #059669;
  margin-bottom: 16px;
}
.form-confirmation h3 {
  color: var(--text-light);
  margin-bottom: 8px;
}
.form-confirmation p {
  color: var(--text-muted);
}

/* ======================================================
   IMAGE PLACEHOLDER FALLBACK
   ====================================================== */
.img-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-secondary);
  color: var(--text-muted);
  font-size: 3rem;
  min-height: 200px;
  border-radius: var(--radius);
}