/* =============================================
   PHYSICS HUNTERS - STATIC CLONE
   Global Styles & Design System
   ============================================= */

:root {
  --primary: #ff695f;
  --primary-dark: #e84d43;
  --primary-light: #ff8f87;
  --orange: #ff7b00;
  --orange-light: #ffb347;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --dark-3: #334155;
  --text: #334155;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --white: #ffffff;
  --bg-light: #f8fafc;
  --bg-section: #f1f5f9;
  --blue: #3b82f6;
  --blue-light: #60a5fa;
  --success: #10b981;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-primary: 'Inter', 'Hind Siliguri', sans-serif;
  --font-bangla: 'Hind Siliguri', 'Inter', sans-serif;
}

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

html { scroll-behavior: smooth; }

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

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

/* =============================================
   HEADER
   ============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  background: rgba(255,255,255,0.97);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 0.9rem 0;
  position: relative;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.nav-logo img {
  height: 44px;
  width: 44px;
  object-fit: contain;
  border-radius: 8px;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-left: auto;
}

.nav-links a {
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--text);
  padding: 0.3rem 0;
  position: relative;
}

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

.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after { width: 100%; }

.nav-actions { flex-shrink: 0; }

.btn-login {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  padding: 0.55rem 1.4rem;
  border-radius: 50px;
  font-size: 0.93rem;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(255,105,95,0.35);
  transition: var(--transition);
}

.btn-login:hover {
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255,105,95,0.5);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--text);
  border-radius: 4px;
  transition: var(--transition);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  padding: 0.5rem 0 1rem;
  border-top: 1px solid var(--border);
}

.mobile-menu.open { display: flex; }

.mobile-menu a {
  padding: 0.75rem 1rem;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.mobile-menu a:hover { background: var(--bg-light); color: var(--primary); }

.mobile-menu .mobile-login {
  display: inline-flex;
  align-self: flex-start;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white) !important;
  padding: 0.6rem 1.5rem;
  border-radius: 50px;
  margin: 0.5rem 1rem 0;
  font-weight: 600;
}

/* =============================================
   HERO CAROUSEL
   ============================================= */
.hero-covers { position: relative; overflow: hidden; }

.hero-swiper { width: 100%; }

.swiper-slide a { position: relative; display: block; }

.hero-img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  object-position: center;
  display: block;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(15,23,42,0.80) 0%,
    rgba(15,23,42,0.50) 50%,
    rgba(15,23,42,0.10) 100%
  );
  display: flex;
  align-items: center;
  padding: 0 5%;
}

.hero-content {
  max-width: 540px;
  color: var(--white);
}

.hero-badge {
  display: inline-block;
  background: rgba(255,105,95,0.9);
  color: var(--white);
  padding: 0.3rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1rem;
  backdrop-filter: blur(4px);
}

.hero-content h2 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.5rem;
  color: var(--white);
  font-family: var(--font-bangla);
}

.hero-content p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 1.5rem;
  font-family: var(--font-bangla);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--orange));
  color: var(--white);
  padding: 0.75rem 1.8rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 4px 18px rgba(255,105,95,0.45);
  transition: var(--transition);
}

.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(255,105,95,0.6);
  color: var(--white);
}

/* Swiper Controls */
.swiper-button-prev,
.swiper-button-next {
  color: var(--white) !important;
  background: rgba(255,255,255,0.2);
  width: 46px !important;
  height: 46px !important;
  border-radius: 50%;
  backdrop-filter: blur(4px);
  transition: var(--transition);
}

.swiper-button-prev::after,
.swiper-button-next::after {
  font-size: 1rem !important;
  font-weight: 900;
}

.swiper-button-prev:hover,
.swiper-button-next:hover {
  background: var(--primary);
}

.swiper-pagination-bullet { background: rgba(255,255,255,0.6) !important; }
.swiper-pagination-bullet-active { background: var(--primary) !important; width: 24px !important; border-radius: 4px !important; }

/* =============================================
   STATS BAR
   ============================================= */
.stats-bar {
  background: linear-gradient(135deg, var(--dark), var(--dark-2));
  padding: 1.5rem 0;
}

.stats-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--white);
}

.stat-item i {
  font-size: 1.8rem;
  color: var(--primary);
}

.stat-item div {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1;
}

.stat-item div p {
  font-size: 0.82rem;
  color: var(--text-light);
  font-weight: 400;
  margin-top: 4px;
  display: block;
  line-height: 1;
}

.stat-item div { flex-direction: column; align-items: flex-start; }
.stat-item .stat-number { display: inline; }

/* =============================================
   SECTION TITLES
   ============================================= */
.section-title {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--dark);
  font-family: var(--font-bangla);
  margin-bottom: 0.5rem;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(to right, var(--primary), var(--orange));
  margin: 0.5rem auto 0;
  border-radius: 4px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  font-family: var(--font-bangla);
  margin-bottom: 2.5rem;
}

/* =============================================
   WHY PHYHUNT SECTION
   ============================================= */
.chooseus-section {
  padding: 5rem 0;
  background: var(--bg-light);
}

/* Video Wrapper */
.video-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.video-thumbnail { position: relative; cursor: pointer; }
.video-thumbnail img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  display: block;
}

.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 5;
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.play-btn-bg {
  position: absolute;
  inset: 0;
  background: rgba(255,105,95,0.9);
  border-radius: 50%;
  animation: pulse-ring 2s infinite;
}

.play-btn i {
  position: relative;
  font-size: 1.4rem;
  color: var(--white);
  z-index: 2;
  margin-left: 4px;
}

@keyframes pulse-ring {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.15); opacity: 0.8; }
}

.video-iframe-box { border-radius: var(--radius-lg); overflow: hidden; }

/* Icons Grid */
.icons-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.icon-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  transition: var(--transition);
  border: 2px solid transparent;
  text-align: center;
  cursor: pointer;
}

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

.icon-card-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.icon-emoji {
  font-size: 2.2rem;
  line-height: 1;
  margin-bottom: 0.25rem;
}

.icon-main {
  font-size: 1.5rem;
  color: var(--primary);
  display: none;
}

.icon-main-show {
  font-size: 2.4rem;
  color: var(--primary);
  display: block;
  margin-bottom: 0.5rem;
}

.icon-card p {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  font-family: var(--font-bangla);
  margin: 0;
  line-height: 1.3;
}

.icon-card-wide {
  grid-column: 1 / -1;
  flex-direction: row;
  gap: 1rem;
  padding: 1rem 1.5rem;
}

.icon-card-wide .icon-card-inner {
  flex-direction: row;
  gap: 0.75rem;
}

.icon-card-wide .icon-emoji { font-size: 1.8rem; }

/* =============================================
   COURSES SECTION
   ============================================= */
.courses-section {
  padding: 5rem 0;
  background: var(--white);
}

.bg-pattern {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,105,95,0.06) 1px, transparent 0);
  background-size: 30px 30px;
  pointer-events: none;
  border-radius: var(--radius);
}

/* Filter Tabs */
.filter-container {
  margin-bottom: 2.5rem;
}

.course-tab {
  background: var(--white) !important;
  color: var(--text) !important;
  border: 1.5px solid var(--primary) !important;
  border-radius: 50px !important;
  padding: 0.5rem 1.2rem !important;
  font-weight: 600 !important;
  font-size: 0.9rem !important;
  margin: 0.25rem !important;
  transition: var(--transition) !important;
  font-family: var(--font-bangla);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.course-tab:hover,
.course-tab.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
  color: var(--white) !important;
  border-color: var(--primary) !important;
  box-shadow: 0 4px 14px rgba(255,105,95,0.35) !important;
}

/* Courses Grid */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  padding: 0.5rem 0;
}

.course-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  border: 1px solid var(--border);
}

.course-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.course-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 3;
  padding: 0.28rem 0.85rem;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 700;
  backdrop-filter: blur(4px);
}

.course-badge.popular {
  background: rgba(255,105,95,0.92);
  color: var(--white);
}

.course-badge.new {
  background: rgba(16,185,129,0.92);
  color: var(--white);
}

.course-badge.hot {
  background: rgba(255,123,0,0.92);
  color: var(--white);
}

.course-badge.free {
  background: rgba(59,130,246,0.92);
  color: var(--white);
}

.course-thumb {
  width: 100%;
  height: 190px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.course-card:hover .course-thumb { transform: scale(1.04); }

.course-logo-wrap {
  position: absolute;
  top: 165px;
  right: 14px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 3px solid var(--white);
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--shadow-sm);
  z-index: 5;
}

.course-logo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-body {
  padding: 1rem 1.1rem 1.2rem;
  margin-top: 0.25rem;
}

.course-name {
  font-size: 0.97rem;
  font-weight: 700;
  color: var(--dark);
  font-family: var(--font-bangla);
  line-height: 1.4;
  margin-bottom: 0.25rem;
}

.course-tag {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  font-weight: 500;
}

.course-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.enrolled {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}

.enrolled i { color: var(--primary); font-size: 0.78rem; }

.course-price {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 0.9rem;
}

.original-price {
  font-size: 0.83rem;
  color: var(--text-light);
}

.discounted-price {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--primary);
}

.free-text { color: var(--success) !important; font-size: 0.95rem !important; }

.course-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  padding: 0.55rem 1.3rem;
  border-radius: 50px;
  font-size: 0.88rem;
  font-weight: 700;
  font-family: var(--font-bangla);
  transition: var(--transition);
  box-shadow: 0 3px 10px rgba(255,105,95,0.3);
}

.course-btn:hover {
  color: var(--white);
  transform: translateX(3px);
  box-shadow: 0 5px 16px rgba(255,105,95,0.5);
}

/* See All Button */
.see-all-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
  padding: 0.65rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  font-family: var(--font-bangla);
  transition: var(--transition);
}

.see-all-btn:hover {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  box-shadow: 0 4px 16px rgba(255,105,95,0.4);
}

/* =============================================
   ABOUT SECTION
   ============================================= */
.about-section {
  padding: 5rem 0;
  background: var(--bg-light);
  overflow: hidden;
}

.about-image-wrap {
  position: relative;
  display: inline-block;
  width: 100%;
}

.about-img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  height: 420px;
  object-fit: cover;
  object-position: top center;
}

.about-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary);
  box-shadow: var(--shadow);
  font-family: var(--font-bangla);
}

.about-badge i { font-size: 0.95rem; }

.about-content { padding: 1rem 0; }

.about-slogan {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--dark);
  font-family: var(--font-bangla);
  line-height: 1.5;
  margin-bottom: 1.2rem;
}

.brand-highlight {
  color: var(--primary);
  display: inline;
}

.about-text {
  font-size: 0.97rem;
  color: var(--text);
  font-family: var(--font-bangla);
  margin-bottom: 1rem;
  line-height: 1.8;
}

/* Counter Grid */
.counter-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.counter-item {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.2rem 1rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.counter-item:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.counter-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--orange));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.6rem;
  color: var(--white);
  font-size: 1.1rem;
}

.counter-digit {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--primary);
  display: inline;
  line-height: 1;
}

.counter-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 4px;
}

/* =============================================
   REVIEWS SECTION
   ============================================= */
.review-section {
  background: linear-gradient(135deg, #1a102b 0%, #0f172a 60%, #1a1040 100%);
  padding: 5rem 2rem;
  overflow: hidden;
}

.review-header {
  text-align: center;
  margin-bottom: 3rem;
}

.review-header h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  font-family: var(--font-bangla);
  margin-bottom: 0.5rem;
}

.review-highlight {
  color: #a855f7;
  font-weight: 800;
}

.review-header p {
  font-size: 1rem;
  color: var(--text-light);
  font-family: var(--font-bangla);
}

.review-swiper { padding-bottom: 3rem !important; }

.review-slide { padding: 0 8px; height: auto; }

.review-card {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  height: 100%;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.review-card:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(168,85,247,0.4);
  transform: translateY(-4px);
}

.review-quote {
  font-size: 1.5rem;
  color: #a855f7;
  line-height: 1;
}

.review-text {
  font-size: 0.93rem;
  color: rgba(255,255,255,0.88);
  font-family: var(--font-bangla);
  line-height: 1.75;
  flex: 1;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1rem;
}

.review-avatar {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #a855f7, #6366f1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  color: var(--white);
}

.review-author strong {
  display: block;
  color: var(--white);
  font-size: 0.92rem;
  font-weight: 700;
  font-family: var(--font-bangla);
}

.review-author span {
  font-size: 0.8rem;
  color: var(--text-light);
  font-family: var(--font-bangla);
}

.review-pagination .swiper-pagination-bullet {
  background: rgba(168,85,247,0.5) !important;
}

.review-pagination .swiper-pagination-bullet-active {
  background: #a855f7 !important;
  width: 24px !important;
  border-radius: 4px !important;
}

/* =============================================
   CTA SECTION
   ============================================= */
.cta-section {
  padding: 5rem 0;
  background: var(--white);
  position: relative;
  overflow: hidden;
}

.cta-bg-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.shape {
  position: absolute;
  font-size: 3.5rem;
  opacity: 0.08;
  animation: float-shape 6s ease-in-out infinite;
  color: var(--primary);
}

.shape-1 { top: 10%; left: 5%; animation-delay: 0s; }
.shape-2 { top: 15%; right: 8%; animation-delay: 1s; }
.shape-3 { bottom: 15%; left: 10%; animation-delay: 2s; }
.shape-4 { bottom: 10%; right: 5%; animation-delay: 3s; }

@keyframes float-shape {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(10deg); }
}

.cta-card {
  background: linear-gradient(135deg, var(--orange) 0%, var(--primary) 50%, #c0392b 100%);
  border-radius: 24px;
  padding: 3.5rem 2rem;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  box-shadow: 0 20px 60px rgba(255,105,95,0.35);
  position: relative;
  z-index: 2;
  color: var(--white);
}

.cta-icons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.2rem;
  font-size: 1.8rem;
  margin-bottom: 1.2rem;
  color: rgba(255,255,255,0.85);
}

.cta-card h2 {
  font-size: 1.9rem;
  font-weight: 800;
  font-family: var(--font-bangla);
  margin-bottom: 0.75rem;
  color: var(--white);
}

.cta-card p {
  font-size: 1rem;
  opacity: 0.9;
  font-family: var(--font-bangla);
  margin-bottom: 2rem;
}

.cta-features {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.cta-feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
}

.cta-feature span {
  font-size: 1.4rem;
  width: 46px;
  height: 46px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  color: var(--white);
}

.cta-feature p {
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0.9;
  margin: 0;
  font-family: var(--font-bangla);
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  color: var(--primary);
  padding: 0.85rem 2.2rem;
  border-radius: 50px;
  font-weight: 800;
  font-size: 1rem;
  font-family: var(--font-bangla);
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
  transition: var(--transition);
}

.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.3);
  color: var(--primary-dark);
}

/* Active nav link */
.nav-links a.active-link {
  color: var(--primary);
}
.nav-links a.active-link::after {
  width: 100%;
}

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: var(--dark);
  color: #cbd5e1;
  border-top: 4px solid var(--blue);
  padding: 2.5rem 1.5rem 1.5rem;
  font-family: var(--font-bangla);
}

.ft-container {
  max-width: 1200px;
  margin: 0 auto;
}

.ft-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.2rem;
  border-bottom: 1px solid var(--dark-2);
  padding-bottom: 1.8rem;
  margin-bottom: 1.8rem;
}

.ft-brand-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.ft-logo {
  width: 50px;
  height: 50px;
  background: var(--white);
  border-radius: 10px;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.ft-brand-text h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #f8fafc;
  margin: 0;
}

.ft-brand-text span {
  font-size: 0.82rem;
  color: #94a3b8;
}

.ft-tagline {
  font-size: 0.95rem;
  border-left: 2px solid var(--blue);
  padding-left: 14px;
  color: #e2e8f0;
  max-width: 420px;
  line-height: 1.6;
}

.ft-tagline strong { color: var(--white); }

.ft-mid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-bottom: 1.8rem;
}

.ft-heading {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--blue);
  margin-bottom: 1rem;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
}

/* Batches chips */
.ft-batches-flex {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ft-chip {
  background: var(--dark-2);
  border: 1px solid var(--dark-3);
  padding: 6px 13px;
  border-radius: 6px;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 7px;
  transition: var(--transition);
  cursor: default;
}

.ft-chip:hover { border-color: var(--blue); }
.ft-chip i { color: var(--blue-light); font-size: 0.8rem; }
.ft-chip span { color: #94a3b8; font-size: 0.75rem; margin-left: 2px; }

/* Quick Links */
.ft-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ft-links a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: #cbd5e1;
  transition: var(--transition);
}

.ft-links a i {
  color: var(--blue-light);
  font-size: 0.75rem;
}

.ft-links a:hover { color: var(--white); padding-left: 4px; }

/* Contact list */
.ft-contact-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ft-contact-list div {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  font-size: 0.88rem;
}

.ft-contact-list i {
  color: var(--blue-light);
  font-size: 0.9rem;
  width: 16px;
  text-align: center;
  margin-top: 3px;
  flex-shrink: 0;
}

.ft-contact-list p, .ft-contact-list a {
  margin: 0;
  color: #cbd5e1;
  line-height: 1.5;
}

.ft-contact-list a:hover { color: var(--white); }

/* Footer Bottom */
.ft-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.2rem;
  border-top: 1px solid var(--dark-2);
  padding-top: 1.5rem;
  font-size: 0.85rem;
}

.ft-socials { display: flex; gap: 8px; }

.ft-socials a {
  background: var(--dark-2);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 0.95rem;
  color: #cbd5e1;
  transition: var(--transition);
}

.ft-socials a:hover {
  background: var(--blue);
  color: var(--white);
  transform: translateY(-3px);
}

.ft-copy-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  color: #64748b;
}

.ft-copy-links a { color: #94a3b8; }
.ft-copy-links a:hover { color: var(--white); }

/* =============================================
   CONNECT SECTION
   ============================================= */
.connect-section {
  padding: 5rem 0;
  background: var(--bg-light);
}

.connect-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.4rem;
  margin-top: 1rem;
}

.connect-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem 1.2rem 1.5rem;
  border-radius: 20px;
  border: 2px solid transparent;
  text-decoration: none;
  transition: var(--transition);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.connect-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.3s ease;
  background: rgba(255,255,255,0.1);
}

.connect-card:hover::before { opacity: 1; }
.connect-card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(0,0,0,0.2); color: var(--white); }

.connect-youtube { background: linear-gradient(135deg, #ff0000, #cc0000); }
.connect-facebook { background: linear-gradient(135deg, #1877f2, #0d5dbf); }
.connect-group { background: linear-gradient(135deg, #4f46e5, #6366f1); }
.connect-whatsapp { background: linear-gradient(135deg, #25d366, #128c7e); }
.connect-founder { background: linear-gradient(135deg, #0f172a, #1e293b); }

.connect-icon {
  width: 60px;
  height: 60px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  transition: var(--transition);
}

.connect-card:hover .connect-icon {
  background: rgba(255,255,255,0.3);
  transform: scale(1.1);
}

.connect-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
  color: var(--white);
  font-family: var(--font-bangla);
}

.connect-card p {
  font-size: 0.82rem;
  opacity: 0.85;
  font-family: var(--font-bangla);
  line-height: 1.4;
  margin-bottom: 0.7rem;
}

.connect-link {
  font-size: 0.78rem;
  background: rgba(255,255,255,0.2);
  padding: 4px 12px;
  border-radius: 50px;
  font-weight: 600;
  opacity: 0.9;
}

/* =============================================
   WHATSAPP FLOAT BUTTON
   ============================================= */
.whatsapp-float {
  position: fixed;
  bottom: 86px;
  right: 28px;
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, #25d366, #128c7e);
  color: var(--white);
  border-radius: 50%;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.55);
  transition: var(--transition);
  z-index: 998;
  text-decoration: none;
  animation: wa-pulse 2.5s ease-in-out infinite;
}

.whatsapp-float:hover {
  color: var(--white);
  transform: translateY(-4px) scale(1.1);
  box-shadow: 0 8px 28px rgba(37,211,102,0.7);
  animation: none;
}

@keyframes wa-pulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37,211,102,0.55); }
  50% { box-shadow: 0 4px 28px rgba(37,211,102,0.85), 0 0 0 8px rgba(37,211,102,0.1); }
}

/* =============================================
   SCROLL TO TOP
   ============================================= */
.scroll-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--primary), var(--orange));
  color: var(--white);
  border: none;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(255,105,95,0.45);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  z-index: 999;
}

.scroll-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.scroll-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(255,105,95,0.6);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 992px) {
  .hero-content h2 { font-size: 2.2rem; }
  .hero-img { height: 400px; }
  .section-title { font-size: 1.8rem; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-actions { display: none; }
  .hamburger { display: flex; }

  .hero-img { height: 300px; }
  .hero-content h2 { font-size: 1.7rem; }
  .hero-content p { font-size: 0.95rem; }
  .hero-overlay { padding: 0 4%; }

  .stats-grid { gap: 1.5rem; }
  .stat-item div { font-size: 1.4rem; }

  .chooseus-section, .courses-section, .about-section { padding: 3.5rem 0; }

  .icons-grid { grid-template-columns: 1fr 1fr; }

  .courses-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

  .counter-grid { grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }
  .counter-digit { font-size: 1.4rem; }

  .about-img { height: 300px; }

  .cta-card { padding: 2.5rem 1.5rem; }
  .cta-card h2 { font-size: 1.5rem; }
  .cta-features { gap: 1rem; }

  .ft-top, .ft-bottom { flex-direction: column; text-align: center; justify-content: center; }
  .ft-tagline { border-left: none; border-top: 2px solid var(--blue); padding-left: 0; padding-top: 10px; }
  .ft-brand-wrap { justify-content: center; }
  .ft-contact-list div { justify-content: center; flex-direction: column; align-items: center; gap: 4px; }
  .ft-batches-flex { justify-content: center; }
  .ft-heading { text-align: center; }
  .ft-links { align-items: center; }
}

@media (max-width: 480px) {
  .hero-img { height: 240px; }
  .hero-content h2 { font-size: 1.4rem; }
  .hero-cta { padding: 0.6rem 1.3rem; font-size: 0.9rem; }

  .courses-grid { grid-template-columns: 1fr; }
  .icons-grid { grid-template-columns: 1fr 1fr; }

  .counter-grid { grid-template-columns: 1fr; max-width: 220px; margin: 1.5rem auto 0; }

  .stats-grid { gap: 1rem; }
  .stat-item { flex-direction: column; text-align: center; }
}

/* =============================================
   ANIMATIONS & UTILITIES
   ============================================= */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Tab pane animation */
.tab-pane.show.active .course-card {
  animation: card-in 0.4s ease both;
}

@keyframes card-in {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.course-card:nth-child(1) { animation-delay: 0.05s; }
.course-card:nth-child(2) { animation-delay: 0.10s; }
.course-card:nth-child(3) { animation-delay: 0.15s; }
.course-card:nth-child(4) { animation-delay: 0.20s; }
.course-card:nth-child(5) { animation-delay: 0.25s; }
.course-card:nth-child(6) { animation-delay: 0.30s; }

/* ---- Screenshot Reviews ---- */
.screenshot-review-card {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.screenshot-img-wrap {
  width: 100%;
  height: 300px;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.screenshot-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition: transform 0.3s ease;
}

.screenshot-review-card:hover .screenshot-img-wrap img {
  transform: scale(1.05);
}

.screenshot-caption {
  padding: 1rem 1.5rem;
  background: #fff;
  border-top: 1px solid #e2e8f0;
  font-size: 0.9rem;
  font-weight: 600;
  color: #334155;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Hind Siliguri', sans-serif;
}

.screenshot-caption i {
  color: #10b981;
  font-size: 1.1rem;
}

/* ---- Teachers Grid ---- */
.teachers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.teacher-card {
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
  transition: transform 0.3s ease;
}

.teacher-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.06);
}

.teacher-img-wrap {
  width: 100px;
  height: 100px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid #f1f5f9;
  background: #f8fafc;
}

.teacher-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.teacher-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 0.3rem;
  font-family: 'Hind Siliguri', sans-serif;
}

.teacher-card p.designation {
  font-size: 0.85rem;
  color: #ff695f;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.teacher-card p.subject {
  font-size: 0.8rem;
  color: #64748b;
  margin-bottom: 1rem;
}

.teacher-card .fb-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #f1f5f9;
  color: #334155;
  padding: 6px 12px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

.teacher-card .fb-btn:hover {
  background: #0866ff;
  color: #fff;
}

.teacher-swiper {
  padding-bottom: 3rem;
  padding-top: 1rem;
}
.teacher-pagination {
  bottom: 0 !important;
}
.teacher-pagination .swiper-pagination-bullet {
  background: #cbd5e1;
  opacity: 1;
}
.teacher-pagination .swiper-pagination-bullet-active {
  background: #ff695f;
  width: 20px;
  border-radius: 10px;
}

/* ---- FAQ ---- */
.faq-section { padding: 5rem 0; background: #fff; }
.faq-section .section-title { margin-bottom: 2.5rem; }
.faq-section .enroll-section-title { margin-bottom: 2.5rem; }
.faq-list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 1rem; }
.faq-item { background: #f8fafc; border: 1.5px solid #e2e8f0; border-radius: 14px; overflow: hidden; transition: border-color 0.3s ease; }
.faq-item.open { border-color: #ff695f; }
.faq-question { display: flex; align-items: center; justify-content: space-between; gap: 1rem; width: 100%; padding: 1.1rem 1.3rem; background: none; border: none; cursor: pointer; text-align: left; font-family: 'Hind Siliguri', sans-serif; }
.faq-question span { font-size: 0.97rem; font-weight: 600; color: #0f172a; line-height: 1.4; }
.faq-arrow { font-size: 0.82rem; color: #ff695f; flex-shrink: 0; transition: transform 0.3s ease; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-answer p { padding: 0 1.3rem 1.2rem; font-size: 0.92rem; color: #64748b; font-family: 'Hind Siliguri', sans-serif; line-height: 1.7; margin: 0; }