/* =========================================================
   RUDRA COACHING CENTER — MODERN EDTECH DESIGN SYSTEM
   Theme: Pure White, Cobalt Blue (#2563EB), Slate & Emerald
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

:root {
  --bg-main: #FFFFFF;
  --bg-subtle: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F1F5F9;

  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --primary-light: #EFF6FF;
  --primary-border: #BFDBFE;

  --accent-emerald: #10B981;
  --accent-emerald-light: #ECFDF5;
  --accent-amber: #F59E0B;
  --accent-amber-light: #FEF3C7;
  --accent-purple: #8B5CF6;
  --accent-purple-light: #F3E8FF;

  --text-main: #0F172A;
  --text-muted: #475569;
  --text-light: #64748B;
  --text-white: #FFFFFF;

  --border-light: #E2E8F0;
  --border-subtle: #F1F5F9;

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 35px -4px rgba(15, 23, 42, 0.12);
  --shadow-blue: 0 8px 25px -4px rgba(37, 99, 235, 0.25);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: light;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-subtle); }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94A3B8; }

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

h1, h2, h3, h4 {
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.text-blue {
  color: var(--primary);
}

/* Reading Progress Bar */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, #2563EB, #38BDF8);
  z-index: 1000;
  transition: width 0.1s linear;
}

/* ── NAVBAR ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  padding: 0.9rem 6%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.25s ease;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
}

.brand-crest {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary-light);
  padding: 4px;
  border: 1px solid var(--primary-border);
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
}
.brand-name {
  font-size: 1.18rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.01em;
}
.brand-sub {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.2s ease;
  padding: 0.4rem 0;
}
.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-nav {
  background: var(--primary);
  color: var(--text-white);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
  transition: all 0.2s ease;
}
.btn-nav:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

.nav-hamburger {
  display: none;
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  font-size: 1.2rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

/* ── HERO SECTION ── */
.hero {
  padding: 8.5rem 6% 5rem;
  background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.4rem 1.1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.6rem;
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.4rem);
  color: var(--text-main);
  font-weight: 800;
  max-width: 920px;
  margin: 0 auto 1.2rem;
  letter-spacing: -0.03em;
}

.hero-desc {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.btn-hero-primary {
  background: var(--primary);
  color: var(--text-white);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.9rem 2.2rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-blue);
  transition: all 0.25s ease;
}
.btn-hero-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.4);
}

.btn-hero-secondary {
  background: #FFFFFF;
  color: var(--text-main);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.9rem 2rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}
.btn-hero-secondary:hover {
  border-color: #CBD5E1;
  background: var(--bg-subtle);
  transform: translateY(-2px);
}

/* Hero Stats Strip */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 1060px;
  margin: 0 auto;
}

.stat-item {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.6rem 1rem;
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.stat-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-border);
}

.stat-val {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
  margin-bottom: 0.3rem;
}
.stat-name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ── SECTION COMMON SYSTEM ── */
section {
  padding: 6rem 6%;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  background: var(--primary-light);
  padding: 0.3rem 0.9rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.8rem;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.8rem;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* ── EXPLORE OUR COURSES (GRADE 1-12) ── */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 1180px;
  margin: 0 auto;
}

.course-card-edtech {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.2rem 1.6rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.course-card-edtech:hover {
  transform: translateY(-6px);
  border-color: var(--primary-border);
  box-shadow: var(--shadow-lg);
}

.course-icon-badge {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
}
.icon-primary { background: #EFF6FF; color: #2563EB; }
.icon-middle { background: #ECFDF5; color: #059669; }
.icon-ssc { background: #FEF3C7; color: #D97706; }
.icon-hsc { background: #F3E8FF; color: #7C3AED; }

.course-grade-tag {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.2rem;
}

.course-title-sub {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1rem;
}

.deliverables-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.6rem;
  flex-grow: 1;
}
.deliverables-list li {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
}
.deliverables-list li span.check {
  color: var(--accent-emerald);
  font-weight: 800;
  flex-shrink: 0;
}

.course-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.65rem 1rem;
  border-radius: var(--radius-sm);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
}
.course-card-edtech:hover .course-btn {
  background: var(--primary);
  color: var(--text-white);
  border-color: var(--primary);
}

/* ── 4-STEP METHODOLOGY ── */
.method-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 1140px;
  margin: 0 auto;
}
.method-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.method-step-num {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--primary);
  background: var(--primary-light);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 0.8rem;
  text-transform: uppercase;
}
.method-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.method-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── WHY RCC: 6 CLEAN ADVANTAGES ── */
.advantages-bg {
  background: var(--bg-subtle);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
  max-width: 1140px;
  margin: 0 auto;
}

.adv-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.adv-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.adv-icon {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.adv-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.adv-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── NEXT-GEN APP SHOWCASE (LIGHT PHONE SIMULATOR) ── */
.app-card-wrapper {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 4rem 4.5rem;
  max-width: 1140px;
  margin: 0 auto;
  box-shadow: var(--shadow-md);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.app-feature-pills {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  margin-top: 1.8rem;
}

.app-pill-item {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
}
.app-pill-item span.bullet {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-emerald-light);
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.app-pill-item h4 {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.1rem;
}
.app-pill-item p {
  font-size: 0.86rem;
  color: var(--text-muted);
}

/* Light Phone Mockup */
.phone-ui-box {
  background: #F8FAFC;
  border: 2px solid #E2E8F0;
  border-radius: 36px;
  padding: 1.2rem;
  box-shadow: var(--shadow-lg);
  max-width: 320px;
  margin: 0 auto;
}

.phone-top-bar {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.2rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid #E2E8F0;
}
.phone-top-bar img {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #FFFFFF;
  padding: 2px;
  border: 1px solid #E2E8F0;
}

.app-widget-white {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  padding: 0.9rem 1rem;
  margin-bottom: 0.8rem;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.04);
}
.app-widget-white .w-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-light);
  text-transform: uppercase;
}
.app-widget-white .w-val {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-main);
  margin: 0.2rem 0;
}

.progress-bar-inner {
  height: 6px;
  background: #E2E8F0;
  border-radius: 3px;
  overflow: hidden;
  margin-top: 0.4rem;
}
.progress-bar-fill {
  height: 100%;
  width: 98%;
  background: var(--accent-emerald);
  border-radius: 3px;
}

/* ── BATCH SCHEDULES ── */
.schedule-grid-edtech {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 980px;
  margin: 0 auto;
}

.batch-box-edtech {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.6rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}
.batch-box-edtech:hover {
  border-color: var(--primary-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.batch-tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-light);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.2rem;
}

.batch-time-large {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.4rem;
  letter-spacing: -0.02em;
}

.batch-title-bold {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.8rem;
}

.batch-subtext {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ── FACULTY MENTORS ── */
.faculty-card-edtech {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  max-width: 1040px;
  margin: 0 auto;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 3rem;
  align-items: center;
}

.faculty-avatar-box {
  width: 100px;
  height: 100px;
  border-radius: 24px;
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.8rem;
  flex-shrink: 0;
}

.faculty-info h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 0.6rem;
}
.faculty-info p {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.7;
  margin-bottom: 1.4rem;
}

.pills-container {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.pill-subject {
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
}

/* ── GOOGLE REVIEWS ── */
.reviews-grid-edtech {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.8rem;
  max-width: 1040px;
  margin: 0 auto;
}

.review-box-edtech {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2.2rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease;
}
.review-box-edtech:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.star-rating {
  color: var(--accent-amber);
  font-size: 1.1rem;
  margin-bottom: 0.8rem;
}
.quote-text {
  font-size: 0.98rem;
  color: var(--text-main);
  line-height: 1.65;
  margin-bottom: 1rem;
}
.reviewer-author {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary);
}

/* ── FAQ ACCORDION ── */
.faq-wrap-edtech {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.2s ease;
}
.faq-card.active {
  border-color: var(--primary-border);
  box-shadow: var(--shadow-sm);
}

.faq-header {
  padding: 1.3rem 1.6rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-main);
}
.faq-icon-toggle {
  font-size: 1.2rem;
  color: var(--primary);
  transition: transform 0.25s ease;
}
.faq-card.active .faq-icon-toggle {
  transform: rotate(45deg);
  color: #EF4444;
}

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 1.6rem;
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.7;
}
.faq-card.active .faq-body {
  padding-bottom: 1.4rem;
}

/* ── CONTACT & ENQUIRY ── */
.contact-section-edtech {
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-light);
}

.contact-layout-edtech {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  max-width: 1120px;
  margin: 0 auto 3rem;
}

.contact-card-white {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.6rem;
  box-shadow: var(--shadow-sm);
}

.info-row {
  display: flex;
  gap: 1.1rem;
  align-items: flex-start;
  margin-bottom: 1.8rem;
}
.info-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.info-content h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary);
  margin-bottom: 0.2rem;
}
.info-content p, .info-content a {
  color: var(--text-main);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
}
.info-content a:hover {
  color: var(--primary);
}

.form-group-edtech {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.2rem;
}
.form-group-edtech label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-main);
}
.form-group-edtech input, .form-group-edtech select, .form-group-edtech textarea {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  font-family: var(--font-main);
  font-size: 0.92rem;
  color: var(--text-main);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group-edtech input:focus, .form-group-edtech select:focus, .form-group-edtech textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-alert {
  padding: 0.85rem 1.2rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  margin-bottom: 1.2rem;
  display: none;
}
.form-alert.success {
  display: block;
  background: var(--accent-emerald-light);
  border: 1px solid #A7F3D0;
  color: #065F46;
}
.form-alert.error {
  display: block;
  background: #FEF2F2;
  border: 1px solid #FECACA;
  color: #991B1B;
}

.map-box-clean {
  max-width: 1120px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  height: 350px;
  box-shadow: var(--shadow-sm);
}
.map-box-clean iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ── MODAL: FREE TRIAL BOOKING ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog-white {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 100%;
  padding: 2.5rem;
  position: relative;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px) scale(0.97);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
.modal-overlay.open .modal-dialog-white {
  transform: translateY(0) scale(1);
}

.modal-close-icon {
  position: absolute;
  top: 1.2rem;
  right: 1.4rem;
  background: transparent;
  border: none;
  color: var(--text-light);
  font-size: 1.4rem;
  cursor: pointer;
}
.modal-close-icon:hover {
  color: var(--text-main);
}

/* ── FOOTER ── */
footer {
  background: #FFFFFF;
  border-top: 1px solid var(--border-light);
  padding: 4rem 6% 2.5rem;
  text-align: center;
}

.footer-logo-img {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  margin: 0 auto 1rem;
  background: var(--primary-light);
  padding: 4px;
}

.footer-brand {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.2rem;
}
.footer-tag {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 1.8rem;
}

.footer-links-list {
  display: flex;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
  list-style: none;
  margin-bottom: 2.2rem;
}
.footer-links-list a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.2s;
}
.footer-links-list a:hover {
  color: var(--primary);
}

.footer-copy-text {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* ── FLOATING WHATSAPP BUTTON ── */
.whatsapp-float-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 400;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  text-decoration: none;
  transition: all 0.25s ease;
}
.whatsapp-float-btn:hover {
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.55);
}
.whatsapp-float-btn svg {
  width: 30px;
  height: 30px;
  fill: #FFFFFF;
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .courses-grid { grid-template-columns: repeat(2, 1fr); }
  .method-grid { grid-template-columns: repeat(2, 1fr); }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-strip { grid-template-columns: repeat(2, 1fr); }
  .app-card-wrapper { grid-template-columns: 1fr; padding: 3rem 2rem; }
  .faculty-card-edtech { flex-direction: column; text-align: center; }
  .pills-container { justify-content: center; }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: #FFFFFF;
    flex-direction: column;
    padding: 2rem 6%;
    gap: 1.4rem;
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }
  .nav-menu.open {
    max-height: 440px;
  }
  .nav-hamburger { display: flex; }
  .hero-title { font-size: 2.4rem; }
  .courses-grid { grid-template-columns: 1fr; }
  .method-grid { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
  .schedule-grid-edtech { grid-template-columns: 1fr; }
  .reviews-grid-edtech { grid-template-columns: 1fr; }
  .contact-layout-edtech { grid-template-columns: 1fr; }
  .stats-strip { grid-template-columns: 1fr 1fr; }
  section { padding: 4.5rem 6%; }
}