/* =============================================
   SHAHRIAR'S MEDICAL ACADEMY
   White + Blue · Mobile-First · 3D Scroll
   ============================================= */

:root {
  --blue-900: #0a2e6b;
  --blue-700: #0d47a1;
  --blue-600: #1565c0;
  --blue-500: #1e88e5;
  --blue-400: #42a5f5;
  --blue-100: #e3f2fd;
  --blue-50:  #f0f7ff;
  --white:    #ffffff;
  --gray-50:  #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-400: #94a3b8;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(13,71,161,0.08);
  --shadow-lg: 0 12px 40px rgba(13,71,161,0.12);
  --gradient: linear-gradient(135deg, var(--blue-700), var(--blue-500));
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: 'Roboto', sans-serif;
  background: var(--white);
  color: var(--gray-800);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  opacity: 1;
  transition: opacity 0.18s ease;
}
body.page-exit { opacity: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* ===================== ANNOUNCEMENT BAR ===================== */
.announce-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 110;
  background: linear-gradient(90deg, #1a365d 0%, #2563eb 50%, #1a365d 100%);
  background-size: 200% 100%;
  animation: announceShimmer 3s ease infinite;
  color: #fff; padding: 8px 16px;
  display: flex; align-items: center; justify-content: center;
  gap: 8px; font-size: 0.82rem;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}
.announce-bar.hidden { display: none; }
.announce-bar.hidden ~ .nav { top: 0; }
.announce-bar ~ .nav { top: 38px; }
@keyframes announceShimmer {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.announce-bar__inner {
  display: flex; align-items: center; gap: 10px;
  flex-wrap: wrap; justify-content: center;
}
.announce-bar__pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: #f56565; flex-shrink: 0;
  animation: announcePulse 1.5s ease-in-out infinite;
}
@keyframes announcePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245,101,101,0.7); }
  50% { box-shadow: 0 0 0 6px rgba(245,101,101,0); }
}
.announce-bar__text {
  font-weight: 500; letter-spacing: 0.02em;
}
.announce-bar__text strong { font-weight: 800; }
.announce-bar__cta {
  display: inline-block; padding: 3px 14px; border-radius: 60px;
  background: #fff; color: var(--blue-700); font-size: 0.72rem;
  font-weight: 700; text-decoration: none;
  transition: transform 0.3s, box-shadow 0.3s;
}
.announce-bar__cta:hover {
  transform: scale(1.05);
  box-shadow: 0 2px 10px rgba(255,255,255,0.3);
}
.announce-bar__close {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  background: none; border: none; color: rgba(255,255,255,0.6);
  font-size: 1.1rem; cursor: pointer; padding: 4px;
  transition: color 0.3s;
}
.announce-bar__close:hover { color: #fff; }

@media (max-width: 600px) {
  .announce-bar { font-size: 0.7rem; padding: 6px 32px 6px 12px; }
  .announce-bar__cta { font-size: 0.65rem; padding: 2px 10px; }
  .announce-bar ~ .nav { top: 34px; }
}

/* ===================== NAV ===================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px;
  background: transparent;
  transition: background 0.3s, box-shadow 0.3s, padding 0.3s;
}
.nav--scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  padding: 8px 20px;
}
.nav__logo-img { height: 44px; }
.nav--scrolled .nav__logo-img { height: 36px; }

.nav__desktop { display: none; }
.nav__burger {
  display: flex; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 6px; z-index: 200;
}
.nav__burger span {
  width: 24px; height: 2.5px; background: var(--blue-700);
  border-radius: 2px; transition: 0.3s;
}
.nav__burger.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav__burger.active span:nth-child(2) { opacity: 0; }
.nav__burger.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* Desktop nav — shown above 900px */
@media (min-width: 901px) {
  .nav { padding: 14px 40px; }
  .nav--scrolled { padding: 8px 40px; }
  .nav__desktop {
    display: flex; align-items: center; gap: 32px;
  }
  .nav__desktop a {
    font-size: 0.9rem; font-weight: 500; color: var(--gray-600);
    transition: color 0.3s;
  }
  .nav__desktop a:hover { color: var(--blue-700); }
  .nav__cta-link {
    color: var(--white) !important;
    background: var(--gradient);
    padding: 8px 22px; border-radius: 60px;
    font-weight: 600 !important; font-size: 0.85rem !important;
  }
  .nav__cta-link:hover { box-shadow: var(--shadow-md); }
  .nav__burger { display: none; }
}

/* ============= MOBILE MENU (separate element) ============= */
.mobile-menu {
  position: fixed; inset: 0; z-index: 150;
  pointer-events: none;
  visibility: hidden;
}
.mobile-menu.open {
  pointer-events: auto;
  visibility: visible;
}

.mobile-menu__backdrop {
  position: absolute; inset: 0;
  background: rgba(255,255,255,0.75);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  opacity: 0; transition: opacity 0.3s;
}
.mobile-menu.open .mobile-menu__backdrop { opacity: 1; }

.mobile-menu__panel {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center; gap: 24px;
  transform: translateY(-20px); opacity: 0;
  transition: transform 0.35s ease, opacity 0.35s ease;
}
.mobile-menu.open .mobile-menu__panel {
  transform: translateY(0); opacity: 1;
}

.mobile-menu__link {
  font-size: 1.3rem; font-weight: 600; color: var(--blue-700);
  padding: 8px 20px; transition: 0.2s;
}
.mobile-menu__link:hover { color: var(--blue-500); }
.mobile-menu__cta {
  color: var(--white) !important;
  background: var(--gradient);
  padding: 12px 36px; border-radius: 60px;
  margin-top: 8px;
}

@media (min-width: 901px) {
  .mobile-menu { display: none !important; }
}

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; border-radius: 60px;
  font-weight: 600; font-size: 0.95rem;
  transition: transform 0.3s, box-shadow 0.3s, background 0.3s, color 0.3s;
  cursor: pointer; border: none;
}
.btn--fill {
  background: var(--gradient); color: var(--white);
  box-shadow: 0 4px 20px rgba(13,71,161,0.2);
}
.btn--fill:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn--outline {
  background: transparent; color: var(--blue-700);
  border: 2px solid var(--blue-700);
}
.btn--outline:hover { background: var(--blue-700); color: var(--white); }
.btn--block { width: 100%; }

/* ===================== HERO ===================== */
.hero {
  position: relative; min-height: auto;
  display: flex; align-items: center; justify-content: center;
  text-align: center; overflow-x: clip;
  padding: 80px 24px 40px;
}
@media (min-width: 768px) {
  .hero { min-height: 100vh; min-height: 100dvh; padding: 100px 40px 60px; }
}
.hero__bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.hero__orb {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.15;
}
.hero__orb--1 { width: 400px; height: 400px; background: var(--blue-500); top: -10%; left: -10%; }
.hero__orb--2 { width: 350px; height: 350px; background: var(--blue-400); bottom: -5%; right: -10%; }

.hero__inner { position: relative; z-index: 2; max-width: 700px; width: 100%; padding: 0; }
.hero__logo { height: 64px; margin: 0 auto 12px; }
.hero__badge {
  display: inline-block; padding: 6px 18px; border-radius: 60px;
  background: linear-gradient(135deg, rgba(37,99,235,0.15), rgba(37,99,235,0.05));
  border: 1px solid rgba(37,99,235,0.3);
  font-size: 0.68rem; font-weight: 700; color: var(--blue-700);
  letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 14px;
  box-shadow: 0 0 12px rgba(37,99,235,0.25), 0 0 30px rgba(37,99,235,0.1);
  animation: badgeGlow 2s ease-in-out infinite;
}
@keyframes badgeGlow {
  0%, 100% { box-shadow: 0 0 12px rgba(37,99,235,0.25), 0 0 30px rgba(37,99,235,0.1); }
  50% { box-shadow: 0 0 20px rgba(37,99,235,0.45), 0 0 50px rgba(37,99,235,0.2); }
}
.hero__title {
  font-size: 1.5rem; font-weight: 900; line-height: 1.2;
  color: var(--gray-900); margin-bottom: 10px;
}
.hero__title span {
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.hero__sub {
  font-size: 0.82rem; color: var(--gray-600); line-height: 1.6;
  margin-bottom: 18px;
}
.hero__btns { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px; }
.hero__btns .btn { padding: 9px 20px; font-size: 0.84rem; }
.hero__stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.hero__stat { text-align: center; }
.hero__stat-num {
  display: block; font-size: 1.3rem; font-weight: 900;
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.hero__stat span { font-size: 0.68rem; color: var(--gray-400); text-transform: uppercase; letter-spacing: 0.05em; }

@media (min-width: 768px) {
  .hero__logo { height: 120px; margin-bottom: 20px; }
  .hero__badge { font-size: 0.78rem; padding: 6px 18px; margin-bottom: 20px; }
  .hero__title { font-size: 3.6rem; }
  .hero__sub { font-size: 1.1rem; margin-bottom: 28px; }
  .hero__btns .btn { padding: 12px 28px; font-size: 0.95rem; }
  .hero__btns { margin-bottom: 40px; }
  .hero__stats { display: flex; gap: 32px; justify-content: center; }
  .hero__stat-num { font-size: 1.8rem; }
  .hero__stat span { font-size: 0.75rem; }
}

/* ===================== SECTIONS ===================== */
.section { padding: 60px 0; overflow-x: clip; }
.section--alt { background: var(--gray-50); }
.section__title {
  font-size: 1.5rem; font-weight: 900; line-height: 1.2;
  margin-bottom: 12px;
}
.section__title span {
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.section__sub { font-size: 0.9rem; color: var(--gray-600); margin-bottom: 32px; max-width: 520px; }

@media (min-width: 768px) {
  .section { padding: 120px 0; }
  .section__title { font-size: 2.6rem; }
}

/* ===================== OVERVIEW ===================== */
.overview { display: grid; gap: 48px; }
.overview__desc { font-size: 1rem; color: var(--gray-600); line-height: 1.8; margin-bottom: 20px; }
.overview__list { display: flex; flex-direction: column; gap: 10px; }
.overview__list li {
  padding: 10px 14px; background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm); font-size: 0.92rem; transition: 0.3s;
}
.overview__list li:hover { border-color: var(--blue-400); box-shadow: var(--shadow-sm); transform: translateX(4px); }
.overview__list li strong { color: var(--blue-700); }

.overview__cards { display: grid; gap: 16px; }
.ocard {
  padding: 20px; background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius); transition: 0.3s;
}
.ocard:hover { border-color: var(--blue-400); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.ocard__icon { font-size: 1.8rem; display: block; margin-bottom: 8px; }
.ocard h3 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.ocard p { font-size: 0.85rem; color: var(--gray-600); }

@media (min-width: 768px) {
  .overview { grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
  .overview__cards { grid-template-columns: 1fr; }
}

/* ===================== COURSES ===================== */
.courses { display: grid; gap: 16px; }
.course {
  padding: 24px; background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius); transition: 0.3s; position: relative; overflow: hidden;
}
.course::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient); opacity: 0; transition: 0.3s;
}
.course:hover { border-color: var(--blue-400); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.course:hover::before { opacity: 1; }
.course__num {
  font-size: 2.2rem; font-weight: 900; line-height: 1;
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text; opacity: 0.25;
  margin-bottom: 8px; display: block;
}
.course h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.course p { font-size: 0.88rem; color: var(--gray-600); line-height: 1.6; margin-bottom: 10px; }
.course__tag {
  display: inline-block; padding: 3px 10px; border-radius: 60px;
  background: var(--blue-50); font-size: 0.72rem; font-weight: 600;
  color: var(--blue-700); letter-spacing: 0.03em;
}

@media (min-width: 768px) {
  .courses { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) {
  .courses { grid-template-columns: 1fr 1fr 1fr; }
}

/* ===================== HIGHLIGHTS ===================== */
.highlights { display: grid; gap: 16px; }
.highlight {
  padding: 24px; background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius); transition: 0.3s;
}
.highlight:hover { border-color: var(--blue-400); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.highlight__icon { font-size: 2rem; margin-bottom: 10px; }
.highlight h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.highlight p { font-size: 0.88rem; color: var(--gray-600); line-height: 1.6; }

@media (min-width: 768px) { .highlights { grid-template-columns: 1fr 1fr; } }

/* ===================== FACULTY ===================== */
.faculty { display: grid; gap: 40px; }
.faculty__photo {
  width: 200px; height: 240px; border-radius: var(--radius);
  background: var(--blue-50); border: 1px solid var(--gray-200);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; margin: 0 auto;
}
.faculty__photo img { width: 75%; height: auto; object-fit: contain; }
.faculty__name { font-size: 1.3rem; font-weight: 700; margin-bottom: 2px; }
.faculty__role { font-size: 0.9rem; color: var(--blue-600); font-weight: 500; margin-bottom: 16px; }
.faculty__bio { font-size: 0.95rem; color: var(--gray-600); line-height: 1.8; margin-bottom: 16px; }
.faculty__tags { display: flex; flex-wrap: wrap; gap: 8px; }
.faculty__tags span {
  padding: 6px 14px; background: var(--blue-50); border: 1px solid var(--blue-100);
  border-radius: 60px; font-size: 0.78rem; font-weight: 500;
}

@media (min-width: 768px) {
  .faculty { grid-template-columns: 240px 1fr; gap: 50px; align-items: center; }
  .faculty__photo { margin: 0; width: 240px; height: 280px; }
}

/* ===================== REVIEWS ===================== */
.reviews { display: grid; gap: 16px; }
.review {
  padding: 24px; background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius); transition: 0.3s;
}
.review:hover { border-color: var(--blue-400); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.review__top { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.review__photo {
  width: 52px; height: 52px; border-radius: 50%; object-fit: cover;
  border: 2px solid var(--blue-100); background: var(--blue-50);
}
.review__top strong { display: block; font-size: 0.95rem; }
.review__top span { font-size: 0.78rem; color: var(--gray-400); }
.review p { font-size: 0.92rem; color: var(--gray-600); line-height: 1.7; font-style: italic; }
.review__screenshot {
  margin-top: 12px; border-radius: 8px; overflow: hidden;
  border: 1px solid var(--gray-200); cursor: pointer;
  transition: transform 0.3s;
}
.review__screenshot:hover { transform: scale(1.02); }
.review__screenshot img {
  width: 100%; display: block; border-radius: 8px;
}

.screenshot-modal {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(0,0,0,0.85); display: flex;
  align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.screenshot-modal.active { opacity: 1; pointer-events: all; }
.screenshot-modal img {
  max-width: 90vw; max-height: 90vh; border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.screenshot-modal__close {
  position: absolute; top: 20px; right: 24px;
  background: rgba(255,255,255,0.15); border: none;
  color: #fff; font-size: 1.5rem; width: 44px; height: 44px;
  border-radius: 50%; cursor: pointer; transition: 0.3s;
}
.screenshot-modal__close:hover { background: rgba(255,255,255,0.3); }

@media (min-width: 768px) { .reviews { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .reviews { grid-template-columns: 1fr 1fr 1fr; } }

/* ===================== PLANS ===================== */
.plans { display: grid; gap: 16px; margin-bottom: 24px; }
.plan {
  padding: 28px 24px; background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius); transition: 0.3s; position: relative;
}
.plan:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.plan--pop { border-color: var(--blue-600); box-shadow: var(--shadow-lg); }
.plan__badge {
  position: absolute; top: -11px; left: 50%; transform: translateX(-50%);
  padding: 4px 16px; background: var(--gradient); border-radius: 60px;
  font-size: 0.7rem; font-weight: 700; color: var(--white);
  text-transform: uppercase; letter-spacing: 0.04em; white-space: nowrap;
}
.plan h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.plan__price-original {
  display: block; font-size: 1rem; font-weight: 500; color: var(--gray-400);
  text-decoration: line-through; margin-bottom: 2px;
}
.plan__price { font-size: 2.2rem; font-weight: 900; margin-bottom: 4px; line-height: 1; color: var(--blue-700); }
.plan__price small { font-size: 1rem; opacity: 0.5; vertical-align: super; }
.plan__price-save {
  display: inline-block; font-size: 0.7rem; font-weight: 700; color: #fff;
  background: #e53e3e; padding: 3px 10px; border-radius: 60px; margin-bottom: 16px;
}
.plan ul { margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
.plan ul li {
  font-size: 0.88rem; color: var(--gray-600); padding-left: 20px; position: relative;
}
.plan ul li::before { content: '✓'; position: absolute; left: 0; color: var(--blue-600); font-weight: 700; }
.plans__note { text-align: center; font-size: 0.82rem; color: var(--gray-400); }

@media (min-width: 768px) { .plans { grid-template-columns: 1fr 1fr 1fr; } }

/* ===================== FOOTER ===================== */
.footer { padding: 60px 0 24px; border-top: 1px solid var(--gray-200); overflow-x: clip; }
.footer__grid { display: grid; gap: 32px; margin-bottom: 32px; }
.footer__logo { height: 50px; margin-bottom: 12px; }
.footer__brand p { font-size: 0.88rem; color: var(--gray-600); line-height: 1.6; max-width: 280px; }
.footer__col { display: flex; flex-direction: column; gap: 8px; }
.footer__col h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 4px; }
.footer__col a { font-size: 0.85rem; color: var(--gray-600); transition: 0.2s; }
.footer__col a:hover { color: var(--blue-600); }
.footer__bottom { padding-top: 20px; border-top: 1px solid var(--gray-200); text-align: center; font-size: 0.78rem; color: var(--gray-400); }

@media (max-width: 767px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer__brand { grid-column: 1 / -1; }
}
@media (min-width: 768px) {
  .footer__grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

/* ===================== COURSE DETAIL CARDS ===================== */
.course-detail {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius); overflow: hidden; margin-bottom: 24px;
  transition: 0.3s;
}
.course-detail:hover { box-shadow: var(--shadow-lg); }

.course-detail__header {
  display: flex; flex-direction: column; gap: 12px;
  padding: 24px; border-bottom: 1px solid var(--gray-200);
  background: var(--gray-50);
}
.course-detail__header h3 { font-size: 1.2rem; font-weight: 800; }
.course-detail__tagline { font-size: 0.85rem; color: var(--blue-600); font-weight: 500; margin-top: 4px; }
.course-detail__badge {
  display: inline-block; padding: 4px 12px; border-radius: 60px;
  background: var(--gradient); color: var(--white);
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.04em; margin-bottom: 8px;
}
.course-detail__badge--alt { background: linear-gradient(135deg, #0277bd, #0288d1); }
.course-detail__badge--green { background: linear-gradient(135deg, #2e7d32, #43a047); }
.course-detail__price {
  font-size: 2rem; font-weight: 900; color: var(--blue-700);
}
.course-detail__price small { font-size: 0.9rem; font-weight: 500; color: var(--gray-400); }

.course-detail__grid { display: grid; gap: 0; }
.course-detail__col { padding: 20px 24px; border-bottom: 1px solid var(--gray-100); }
.course-detail__col:last-child { border-bottom: none; }
.course-detail__col h4 {
  font-size: 0.82rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--blue-700); margin-bottom: 10px;
}
.course-detail__col ul { display: flex; flex-direction: column; gap: 6px; }
.course-detail__col ul li {
  font-size: 0.88rem; color: var(--gray-600); padding-left: 18px; position: relative; line-height: 1.5;
}
.course-detail__col ul li::before { content: '✓'; position: absolute; left: 0; color: var(--blue-600); font-weight: 700; font-size: 0.82rem; }
.course-detail__col ul li strong { color: var(--gray-800); }

.course-detail__footer {
  padding: 16px 24px; background: var(--blue-50);
  display: flex; flex-wrap: wrap; gap: 12px;
}
.course-detail__footer span { font-size: 0.8rem; font-weight: 500; color: var(--blue-700); }

.course-detail__cta {
  padding: 20px 24px; display: flex; gap: 12px; flex-wrap: wrap;
  border-top: 1px solid var(--gray-200);
}
.course-detail__cta .btn { padding: 10px 24px; font-size: 0.88rem; }

/* ===================== COMPACT COURSE CARDS (HOMEPAGE) ===================== */
.course-cards {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px;
}
.course-card {
  display: flex; flex-direction: column;
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius); overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}
.course-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg);
}
.course-card__badge {
  display: inline-block; padding: 3px 12px; border-radius: 0 0 8px 0;
  font-size: 0.65rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.04em; background: var(--gradient); color: var(--white);
}
.course-card__badge--alt { background: linear-gradient(135deg, #f59e0b, #d97706); }
.course-card__badge--green { background: linear-gradient(135deg, #10b981, #059669); }
.course-card__body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.course-card__name {
  font-size: 1.05rem; font-weight: 700; color: var(--gray-900);
  margin-bottom: 6px; line-height: 1.3;
}
.course-card__tagline {
  font-size: 0.78rem; color: var(--gray-500); margin-bottom: 12px;
  line-height: 1.5;
}
.course-card__price {
  font-size: 1.4rem; font-weight: 900; color: var(--blue-700);
  margin-bottom: 12px; display: flex; align-items: baseline; gap: 8px;
  flex-wrap: wrap;
}
.course-card__price small { font-size: 0.75rem; font-weight: 400; color: var(--gray-400); }
.course-card__price .price-original {
  font-size: 0.9rem; font-weight: 500; color: var(--gray-400);
  text-decoration: line-through;
}
.course-card__price .price-save {
  font-size: 0.65rem; font-weight: 700; color: #fff;
  background: #e53e3e; padding: 2px 8px; border-radius: 60px;
}
.course-card__highlights {
  list-style: none; padding: 0; margin: 0 0 12px;
}
.course-card__highlights li {
  position: relative; padding: 3px 0 3px 18px;
  font-size: 0.74rem; color: var(--gray-600); line-height: 1.5;
}
.course-card__highlights li::before {
  content: '✓'; position: absolute; left: 0; top: 3px;
  color: var(--blue-500); font-weight: 700; font-size: 0.72rem;
}
.course-card__tags {
  display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; margin-top: auto;
}
.course-card__tags span {
  font-size: 0.68rem; padding: 3px 10px; background: var(--blue-50);
  color: var(--blue-700); border-radius: 60px; font-weight: 500;
}
.course-card__actions { display: flex; gap: 8px; }
.course-card__actions .btn { flex: 1; text-align: center; padding: 7px 10px; font-size: 0.78rem; }

@media (max-width: 767px) {
  .course-cards { grid-template-columns: 1fr; gap: 12px; }
  .course-card__body { padding: 16px; }
  .course-card__name { font-size: 0.95rem; }
  .course-card__price { font-size: 1.2rem; }
}
@media (min-width: 768px) and (max-width: 1023px) {
  .course-cards { grid-template-columns: 1fr 1fr; }
}

.course-detail__samples {
  padding: 24px; border-top: 2px solid var(--blue-100);
  background: linear-gradient(135deg, var(--blue-50), var(--white));
}
.course-detail__samples h4 {
  font-size: 1rem; font-weight: 800; color: var(--blue-700);
  margin-bottom: 4px; text-transform: none; letter-spacing: 0;
}
.samples__subtitle {
  font-size: 0.82rem; color: var(--gray-600); margin-bottom: 16px;
}
.samples__grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
}
.sample-card {
  display: block; border-radius: var(--radius); overflow: hidden;
  background: var(--white); border: 1px solid var(--gray-200);
  transition: transform 0.3s, box-shadow 0.3s;
}
.sample-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(13,71,161,0.15);
}
.sample-card__thumb {
  position: relative; aspect-ratio: 16/9; overflow: hidden;
  background: var(--gray-100);
}
.sample-card__thumb img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s;
}
.sample-card:hover .sample-card__thumb img { transform: scale(1.05); }
.sample-card__play {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.3);
  opacity: 0; transition: opacity 0.3s;
}
.sample-card:hover .sample-card__play { opacity: 1; }
.sample-card__play svg {
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3));
}
.sample-card__info {
  padding: 10px 12px;
}
.sample-card__info strong {
  display: block; font-size: 0.82rem; font-weight: 700;
  color: var(--gray-900); margin-bottom: 2px;
}
.sample-card__info span {
  font-size: 0.72rem; color: var(--gray-400);
}

@media (max-width: 480px) {
  .samples__grid { grid-template-columns: 1fr; gap: 10px; }
  .course-detail__samples { padding: 16px; }
  .course-detail__samples h4 { font-size: 0.9rem; }
  .sample-card__info { padding: 8px 10px; }
  .sample-card__info strong { font-size: 0.78rem; }
}

@media (min-width: 768px) {
  .course-detail__header { flex-direction: row; justify-content: space-between; align-items: center; }
  .course-detail__grid { grid-template-columns: 1fr 1fr 1fr; }
  .course-detail__col { border-bottom: none; border-right: 1px solid var(--gray-100); }
  .course-detail__col:last-child { border-right: none; }
}

/* ===================== PLAN DURATION ===================== */
.plan__duration { font-size: 0.82rem; color: var(--gray-400); margin-bottom: 8px; font-weight: 500; }
.plan__price span { font-size: 0.85rem; font-weight: 400; color: var(--gray-400); }

/* ===================== CONTACT ===================== */
.contact { text-align: center; }
.contact__grid {
  display: grid; gap: 16px; margin-top: 32px; text-align: left;
}
.contact__item {
  padding: 20px; background: var(--gray-50); border: 1px solid var(--gray-200);
  border-radius: var(--radius); transition: 0.3s;
}
.contact__item:hover { border-color: var(--blue-400); box-shadow: var(--shadow-sm); }
.contact__item strong { display: block; font-size: 0.9rem; margin-bottom: 6px; }
.contact__item a { color: var(--blue-700); font-weight: 500; font-size: 0.92rem; }
.contact__item p { font-size: 0.88rem; color: var(--gray-600); line-height: 1.6; }

.contact__map {
  margin-top: 24px;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gray-200);
}
.contact__map-link {
  display: block;
  position: relative;
}
.contact__map-link iframe {
  display: block;
  pointer-events: none;
}
.contact__map-link:hover iframe {
  pointer-events: auto;
}
.contact__map-overlay {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(6px);
  padding: 8px 20px;
  border-radius: 60px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--blue-700);
  box-shadow: 0 2px 12px rgba(0,0,0,0.1);
  transition: opacity 0.3s;
  white-space: nowrap;
}
.contact__map-link:hover .contact__map-overlay {
  opacity: 0;
}

@media (min-width: 768px) {
  .contact__grid { grid-template-columns: 1fr 1fr; }
}

/* ===================== FLOATING BACK BUTTON (sub-pages) ===================== */
.float-back {
  position: fixed; bottom: 24px; left: 24px; z-index: 90;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 18px; border-radius: 60px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--gray-200);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  font-size: 0.78rem; font-weight: 600; color: var(--blue-700);
  text-decoration: none;
  transition: transform 0.3s, box-shadow 0.3s, gap 0.3s;
}
.float-back:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(0,0,0,0.12);
  gap: 8px;
}
.float-back svg {
  width: 14px; height: 14px; flex-shrink: 0;
  fill: none; stroke: currentColor; stroke-width: 2.5;
  stroke-linecap: round; stroke-linejoin: round;
}
@media (max-width: 480px) {
  .float-back { padding: 8px 14px; font-size: 0.72rem; left: 16px; bottom: 16px; }
}

/* ===================== WHATSAPP FLOAT ===================== */
.whatsapp-float {
  position: fixed; bottom: 24px; right: 24px; z-index: 90;
  width: 56px; height: 56px; border-radius: 50%;
  background: #25d366; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: transform 0.3s, box-shadow 0.3s;
  animation: waFloat 2.5s ease-in-out infinite;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5); }
@keyframes waFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ===================== SCROLL ANIMATIONS ===================== */
[data-anim] {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.7s ease, transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
[data-anim="left"] { transform: translateX(-80px); }
[data-anim="right"] { transform: translateX(80px); }
[data-anim="up"] { transform: translateY(50px); }
[data-anim="zoom"] { transform: scale(0.85); }

[data-anim].visible {
  opacity: 1;
  transform: translateX(0) translateY(0) scale(1);
}

/* Stagger delay for grid children */
[data-anim-delay="1"] { transition-delay: 0.1s; }
[data-anim-delay="2"] { transition-delay: 0.2s; }
[data-anim-delay="3"] { transition-delay: 0.3s; }
[data-anim-delay="4"] { transition-delay: 0.4s; }
[data-anim-delay="5"] { transition-delay: 0.5s; }
[data-anim-delay="6"] { transition-delay: 0.6s; }

/* ===================== MOBILE ANIMATION FIX ===================== */
@media (max-width: 767px) {
  [data-anim="left"] { transform: translateX(-30px); }
  [data-anim="right"] { transform: translateX(30px); }
  [data-anim="up"] { transform: translateY(25px); }
  [data-anim] { transform: translateY(25px); }
  [data-anim="zoom"] { transform: scale(0.92); }
}

/* ===================== MOBILE OVERRIDES ===================== */
@media (max-width: 480px) {
  .container { padding: 0 20px; }
  .section { padding: 50px 0; }
  .section__title { font-size: 1.35rem; margin-bottom: 10px; }
  .section__sub { font-size: 0.82rem; margin-bottom: 24px; }

  .hero { padding: 70px 20px 36px; }
  .hero__logo { height: 56px; margin-bottom: 10px; }
  .hero__badge { font-size: 0.58rem; padding: 4px 10px; margin-bottom: 10px; }
  .hero__title { font-size: 1.3rem; margin-bottom: 8px; }
  .hero__sub { font-size: 0.76rem; line-height: 1.55; margin-bottom: 14px; }
  .hero__btns { margin-bottom: 20px; gap: 8px; }
  .hero__btns .btn { padding: 8px 16px; font-size: 0.78rem; }
  .hero__stats { gap: 10px; }
  .hero__stat-num { font-size: 1.1rem; }
  .hero__stat span { font-size: 0.58rem; letter-spacing: 0.03em; }

  .overview { gap: 28px; }
  .overview__desc { font-size: 0.88rem; }
  .overview__list li { font-size: 0.84rem; padding: 8px 12px; }
  .ocard { padding: 16px; }
  .ocard h3 { font-size: 0.92rem; }
  .ocard p { font-size: 0.8rem; }

  .course-detail__header { padding: 16px; gap: 8px; }
  .course-detail__header h3 { font-size: 1rem; }
  .course-detail__price { font-size: 1.6rem; }
  .course-detail__price small { font-size: 0.78rem; }
  .course-detail__col { padding: 14px 16px; }
  .course-detail__col h4 { font-size: 0.76rem; margin-bottom: 8px; }
  .course-detail__col ul li { font-size: 0.82rem; }
  .course-detail__footer { padding: 12px 16px; gap: 8px; }
  .course-detail__footer span { font-size: 0.72rem; }
  .course-detail__cta { padding: 14px 16px; gap: 8px; }
  .course-detail__cta .btn { padding: 8px 18px; font-size: 0.82rem; flex: 1; text-align: center; }
  .course-detail__samples { padding: 14px 16px; }
  .course-detail__links { gap: 6px; }
  .sample-link { padding: 6px 12px; font-size: 0.76rem; }

  .highlight { padding: 18px; }
  .highlight__icon { font-size: 1.6rem; margin-bottom: 8px; }
  .highlight h3 { font-size: 0.95rem; }
  .highlight p { font-size: 0.82rem; }

  .faculty__photo { width: 160px; height: 200px; }
  .faculty__name { font-size: 1.1rem; }
  .faculty__role { font-size: 0.82rem; }
  .faculty__bio { font-size: 0.86rem; }
  .faculty__tags span { font-size: 0.72rem; padding: 5px 10px; }

  .review { padding: 18px; }
  .review__top strong { font-size: 0.88rem; }
  .review__top span { font-size: 0.72rem; }
  .review p { font-size: 0.84rem; }
  .review__photo { width: 44px; height: 44px; }

  .plan { padding: 20px 18px; }
  .plan h3 { font-size: 1rem; }
  .plan__price { font-size: 1.8rem; }
  .plan ul li { font-size: 0.82rem; }
  .plans__note { font-size: 0.74rem; }

  .contact__item { padding: 16px; }
  .contact__item strong { font-size: 0.84rem; }
  .contact__item a { font-size: 0.84rem; }
  .contact__item p { font-size: 0.82rem; }

  .footer { padding: 40px 0 20px; }
  .footer__logo { height: 40px; }
  .footer__brand p { font-size: 0.82rem; }
  .footer__col h4 { font-size: 0.84rem; }
  .footer__col a { font-size: 0.8rem; }
  .footer__bottom { font-size: 0.72rem; }

  .whatsapp-float { width: 48px; height: 48px; bottom: 16px; right: 16px; }
  .whatsapp-float svg { width: 24px; height: 24px; }

}

/* ===================== BANNER SLIDER ===================== */
.banner-slider {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--gray-50);
}
.banner-slider__track {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}
.banner-slider__slide {
  min-width: 100%;
  position: relative;
}
.banner-slider__slide img {
  width: 100%;
  display: block;
  object-fit: cover;
}
.banner-slider__slide a {
  display: block;
}
.banner-slider__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(6px);
  color: var(--blue-700);
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(0,0,0,0.12);
  transition: background 0.2s, transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.banner-slider__btn:hover {
  background: var(--white);
  transform: translateY(-50%) scale(1.1);
}
.banner-slider__btn--prev { left: 12px; }
.banner-slider__btn--next { right: 12px; }
.banner-slider__dots {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 3;
}
.banner-slider__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--white);
  background: transparent;
  cursor: pointer;
  transition: background 0.25s, transform 0.25s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.25);
  padding: 0;
}
.banner-slider__dot.active {
  background: var(--white);
  transform: scale(1.25);
}
@media (max-width: 600px) {
  .banner-slider__btn { width: 34px; height: 34px; font-size: 1.2rem; }
  .banner-slider__btn--prev { left: 6px; }
  .banner-slider__btn--next { right: 6px; }
  .banner-slider__dots { bottom: 8px; gap: 6px; }
  .banner-slider__dot { width: 8px; height: 8px; }
}

/* ===================== BLOG SHOWCASE ON INDEX ===================== */
.blog-section { padding: 40px 0 32px; }
.blog-section__header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; gap: 12px;
}
.blog-section__header .section__title { margin-bottom: 0; font-size: 1.3rem; }
.blog-section__viewall {
  font-size: 0.78rem; font-weight: 600; color: var(--blue-700);
  white-space: nowrap; transition: gap 0.3s;
  display: inline-flex; align-items: center; gap: 4px;
}
.blog-section__viewall:hover { gap: 8px; }

.blog-showcase {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px;
}
.blog-scard {
  display: flex; flex-direction: row;
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: 10px; overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}
.blog-scard:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.blog-scard__img {
  position: relative; width: 100px; min-height: 90px; flex-shrink: 0;
  overflow: hidden; background: var(--gray-100);
}
.blog-scard__img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s;
}
.blog-scard:hover .blog-scard__img img { transform: scale(1.08); }
.blog-scard__cat {
  position: absolute; top: 6px; left: 6px;
  padding: 2px 8px; border-radius: 60px;
  background: var(--gradient); color: var(--white);
  font-size: 0.55rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.03em;
}
.blog-scard__body {
  padding: 10px 12px; display: flex; flex-direction: column; flex: 1;
  min-width: 0;
}
.blog-scard__title {
  font-size: 0.82rem; font-weight: 700; line-height: 1.3;
  color: var(--gray-900); margin-bottom: 4px;
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}
.blog-scard__excerpt { display: none; }
.blog-scard__meta {
  display: flex; gap: 8px; font-size: 0.65rem; color: var(--gray-400);
  margin-top: auto;
}
.blog-scard__read {
  display: inline-flex; align-items: center; gap: 3px;
  font-size: 0.7rem; font-weight: 600; color: var(--blue-700);
  margin-top: 4px; transition: gap 0.3s;
}
.blog-scard:hover .blog-scard__read { gap: 6px; }

@media (max-width: 767px) {
  .blog-section { padding: 32px 0 24px; }
  .blog-section__header .section__title { font-size: 1.1rem; }
  .blog-showcase { grid-template-columns: 1fr; gap: 10px; }
  .blog-scard__img { width: 88px; min-height: 78px; }
  .blog-scard__title { font-size: 0.78rem; }
  .blog-scard__body { padding: 8px 10px; }
  .blog-scard__meta { font-size: 0.6rem; }
  .blog-scard__read { font-size: 0.65rem; }
  .blog-scard__cat { font-size: 0.5rem; padding: 2px 6px; }
}
@media (min-width: 768px) and (max-width: 1023px) {
  .blog-showcase { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) {
  .blog-scard__img { width: 120px; min-height: 100px; }
  .blog-scard__title { font-size: 0.88rem; }
}