/* ============================================================
   myCampus — Complete Redesign CSS
   Production-ready | Fully Mobile Responsive
   ============================================================ */

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: #1e2336;
  background: #fff;
  overflow-x: hidden;
  line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── CSS Variables ────────────────────────────────────────── */
:root {
  --primary:      #2351DC;
  --primary-dark: #1a3aad;
  --accent:       #00c6ff;
  --purple:       #7c3aed;
  --purple-light: #a78bfa;
  --green:        #10b981;
  --orange:       #f59e0b;
  --dark:         #0f172a;
  --dark2:        #1e2336;
  --gray:         #64748b;
  --gray-light:   #f1f5f9;
  --white:        #ffffff;
  --gradient:     linear-gradient(135deg, #1a1a6e 0%, #2351DC 50%, #00c6ff 100%);
  --gradient-ai:  linear-gradient(135deg, #7c3aed 0%, #2351DC 100%);
  --shadow-sm:    0 2px 8px rgba(35,81,220,0.08);
  --shadow-md:    0 8px 32px rgba(35,81,220,0.14);
  --shadow-lg:    0 20px 60px rgba(35,81,220,0.20);
  --radius:       16px;
  --radius-sm:    10px;
  --radius-lg:    24px;
  --transition:   0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ── Utility ──────────────────────────────────────────────── */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(35,81,220,0.08);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.section-tag.ai {
  background: rgba(124,58,237,0.1);
  color: var(--purple);
}
.section-title {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--dark);
  margin-bottom: 12px;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--gray);
  max-width: 560px;
}
.gradient-text {
  background: var(--gradient-ai);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.btn-primary-mc {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient);
  color: var(--white);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(35,81,220,0.35);
  white-space: nowrap;
}
.btn-primary-mc:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(35,81,220,0.45);
  color: var(--white);
}
.btn-outline-mc {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 26px;
  border-radius: 100px;
  border: 2px solid var(--primary);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-outline-mc:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

/* ── Navbar ───────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: var(--transition);
}
#navbar .mc-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(35,81,220,0.08);
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
  transition: var(--transition);
}
#navbar .mc-nav.scrolled {
  padding: 10px 40px;
  box-shadow: var(--shadow-md);
}
.nav-brand img { height: 40px; width: auto; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-links a {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--dark2);
  padding: 8px 16px;
  border-radius: 100px;
  transition: var(--transition);
}
.nav-links a:hover {
  background: rgba(35,81,220,0.07);
  color: var(--primary);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.btn-demo {
  background: var(--gradient);
  color: var(--white) !important;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 10px 22px;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(35,81,220,0.3);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-demo:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(35,81,220,0.4);
  color: var(--white) !important;
}
.btn-contact-nav {
  background: transparent;
  color: var(--dark2);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 10px 22px;
  border-radius: 100px;
  border: 2px solid rgba(35,81,220,0.2);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
}
.btn-contact-nav:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(35,81,220,0.05);
}
/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 1010;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--dark);
  border-radius: 4px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 80px 24px 40px;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
}
.mobile-nav.open {
  display: flex;
  transform: translateX(0);
}
.mobile-nav a {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--dark);
  padding: 12px 32px;
  border-radius: 12px;
  text-align: center;
  width: 100%;
  max-width: 280px;
  transition: var(--transition);
}
.mobile-nav a:hover {
  background: rgba(35,81,220,0.07);
  color: var(--primary);
}
.mobile-nav .btn-demo {
  width: 100%;
  max-width: 280px;
  justify-content: center;
  font-size: 1rem;
  padding: 14px 32px;
}

/* ── Hero Section ─────────────────────────────────────────── */
#hero-section {
  min-height: 100vh;
  background: linear-gradient(160deg, #0f172a 0%, #1a1a6e 40%, #2351DC 75%, #00c6ff 100%);
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 80px;
}
#hero-section::before {
  content: '';
  position: absolute;
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(0,198,255,0.15) 0%, transparent 70%);
  top: -200px; right: -200px;
  pointer-events: none;
}
#hero-section::after {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(124,58,237,0.12) 0%, transparent 70%);
  bottom: -100px; left: -100px;
  pointer-events: none;
}
/* Floating AI orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  animation: floatOrb 6s ease-in-out infinite;
}
.hero-orb-1 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(124,58,237,0.2) 0%, transparent 70%);
  top: 10%; right: 15%;
  animation-delay: 0s;
}
.hero-orb-2 {
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(0,198,255,0.15) 0%, transparent 70%);
  top: 60%; right: 5%;
  animation-delay: 2s;
}
.hero-orb-3 {
  width: 150px; height: 150px;
  background: radial-gradient(circle, rgba(35,81,220,0.2) 0%, transparent 70%);
  bottom: 20%; left: 10%;
  animation-delay: 4s;
}
@keyframes floatOrb {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}
.hero-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 8px 18px;
  border-radius: 100px;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}
.hero-badge .dot {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero-title .highlight {
  background: linear-gradient(90deg, #00c6ff, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
  max-width: 480px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 48px;
}
.hero-actions .btn-primary-mc {
  background: linear-gradient(135deg, #00c6ff, #7c3aed);
  box-shadow: 0 8px 30px rgba(0,198,255,0.3);
  font-size: 1rem;
  padding: 16px 32px;
}
.hero-actions .btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.1);
  color: var(--white);
  font-weight: 600;
  font-size: 1rem;
  padding: 16px 32px;
  border-radius: 100px;
  border: 1px solid rgba(255,255,255,0.25);
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}
.hero-actions .btn-ghost:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-2px);
  color: var(--white);
}
/* Hero Stats */
.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.hero-stat {
  text-align: left;
}
.hero-stat .stat-number {
  font-size: 2rem;
  font-weight: 900;
  color: var(--white);
  line-height: 1;
}
.hero-stat .stat-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
  font-weight: 500;
}
.hero-stat .stat-number span {
  background: linear-gradient(90deg, #00c6ff, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-img-wrapper {
  position: relative;
  width: 100%;
  max-width: 520px;
}
.hero-img-wrapper img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 80px rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.1);
}
/* floating cards on hero image */
.hero-float-card {
  position: absolute;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--radius);
  padding: 12px 18px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--dark);
  border: 1px solid rgba(255,255,255,0.8);
  animation: floatCard 4s ease-in-out infinite;
  white-space: nowrap;
}
.hero-float-card .icon {
  width: 34px; height: 34px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.hero-float-card-1 {
  top: -20px; left: -30px;
  animation-delay: 0s;
}
.hero-float-card-2 {
  bottom: 40px; right: -30px;
  animation-delay: 2s;
}
.hero-float-card-3 {
  top: 50%; left: -40px;
  transform: translateY(-50%);
  animation-delay: 1s;
}
@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.hero-float-card-3 { animation: floatCard3 4s ease-in-out infinite; animation-delay: 1s; }
@keyframes floatCard3 {
  0%, 100% { transform: translateY(-50%); }
  50% { transform: translateY(calc(-50% - 12px)); }
}

/* ── Stats Banner ─────────────────────────────────────────── */
#stats-section {
  background: var(--dark);
  padding: 50px 40px;
  position: relative;
  overflow: hidden;
}
#stats-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(35,81,220,0.15) 0%, rgba(124,58,237,0.1) 100%);
}
.stats-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.stat-item {
  text-align: center;
  padding: 20px 50px;
  border-right: 1px solid rgba(255,255,255,0.1);
  flex: 1;
  min-width: 180px;
}
.stat-item:last-child { border-right: none; }
.stat-item .number {
  font-size: clamp(2.2rem, 5vw, 3rem);
  font-weight: 900;
  background: linear-gradient(90deg, #00c6ff, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-item .label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  margin-top: 6px;
  font-weight: 500;
}

/* ── Features Section ─────────────────────────────────────── */
#features-section {
  padding: 100px 40px;
  background: var(--white);
}
.features-container {
  max-width: 1280px;
  margin: 0 auto;
}
.features-header {
  text-align: center;
  margin-bottom: 60px;
}
.features-header .section-subtitle { margin: 0 auto; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--white);
  border: 1px solid rgba(35,81,220,0.08);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  cursor: default;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(35,81,220,0.15);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 60px; height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.6rem;
}
.feature-icon img { width: 32px; height: 32px; object-fit: contain; }
.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 0.92rem;
  color: var(--gray);
  line-height: 1.7;
}
/* icon bg colors */
.icon-blue   { background: rgba(35,81,220,0.1); }
.icon-cyan   { background: rgba(0,198,255,0.1); }
.icon-purple { background: rgba(124,58,237,0.1); }
.icon-green  { background: rgba(16,185,129,0.1); }
.icon-orange { background: rgba(245,158,11,0.1); }
.icon-pink   { background: rgba(236,72,153,0.1); }

/* ── AI Features Section ──────────────────────────────────── */
#ai-features-section {
  padding: 100px 40px;
  background: linear-gradient(160deg, #0f172a 0%, #1a1a6e 50%, #16046b 100%);
  position: relative;
  overflow: hidden;
}
#ai-features-section::before {
  content: '';
  position: absolute;
  width: 900px; height: 900px;
  background: radial-gradient(circle, rgba(124,58,237,0.15) 0%, transparent 65%);
  top: -300px; right: -200px;
  pointer-events: none;
}
#ai-features-section::after {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,198,255,0.1) 0%, transparent 65%);
  bottom: -200px; left: -100px;
  pointer-events: none;
}
/* Grid pattern overlay */
.ai-grid-bg {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.ai-features-container {
  max-width: 1280px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.ai-features-header {
  text-align: center;
  margin-bottom: 70px;
}
.ai-features-header .section-title { color: var(--white); }
.ai-features-header .section-subtitle { color: rgba(255,255,255,0.65); margin: 0 auto; }
.ai-features-header .section-tag.ai {
  background: rgba(167,139,250,0.15);
  color: var(--purple-light);
  border: 1px solid rgba(167,139,250,0.25);
}
/* AI Cards */
.ai-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 60px;
}
.ai-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px);
}
.ai-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, transparent 100%);
  pointer-events: none;
}
.ai-card:hover {
  transform: translateY(-8px);
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.2);
  box-shadow: 0 30px 80px rgba(0,0,0,0.4);
}
.ai-card-glow {
  position: absolute;
  width: 200px; height: 200px;
  border-radius: 50%;
  top: -80px; right: -60px;
  opacity: 0.25;
  filter: blur(40px);
  pointer-events: none;
  transition: var(--transition);
}
.ai-card:hover .ai-card-glow { opacity: 0.4; transform: scale(1.2); }
/* Individual card glow colors */
.ai-card-voice .ai-card-glow       { background: radial-gradient(circle, #00c6ff, transparent); }
.ai-card-curriculum .ai-card-glow  { background: radial-gradient(circle, #a78bfa, transparent); }
.ai-card-game .ai-card-glow        { background: radial-gradient(circle, #10b981, transparent); }
.ai-card-scanner .ai-card-glow     { background: radial-gradient(circle, #f97316, transparent); }
/* AI card icon */
.ai-icon-wrapper {
  width: 72px; height: 72px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  position: relative;
  font-size: 2rem;
}
.ai-icon-wrapper::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 21px;
  background: linear-gradient(135deg, rgba(255,255,255,0.3), rgba(255,255,255,0.05));
  pointer-events: none;
}
.ai-icon-voice      { background: linear-gradient(135deg, #0ea5e9, #00c6ff); }
.ai-icon-curriculum { background: linear-gradient(135deg, #7c3aed, #a78bfa); }
.ai-icon-game       { background: linear-gradient(135deg, #059669, #10b981); }
.ai-icon-scanner    { background: linear-gradient(135deg, #ea580c, #f97316); }
/* AI badge */
.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(167,139,250,0.15);
  border: 1px solid rgba(167,139,250,0.25);
  color: var(--purple-light);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.ai-badge .dot-ai {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--purple-light);
  animation: pulse 2s infinite;
}
.ai-card h3 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 14px;
  line-height: 1.2;
}
.ai-card .ai-card-desc {
  font-size: 0.93rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.75;
  margin-bottom: 28px;
}
/* Feature bullets inside AI card */
.ai-features-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}
.ai-feat-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.87rem;
  color: rgba(255,255,255,0.8);
  font-weight: 500;
}
.ai-feat-item .check {
  width: 20px; height: 20px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  flex-shrink: 0;
}
.check-cyan   { background: rgba(0,198,255,0.2);   color: #00c6ff; }
.check-purple { background: rgba(167,139,250,0.2); color: var(--purple-light); }
.check-green  { background: rgba(16,185,129,0.2);  color: var(--green); }
.check-orange { background: rgba(249,115,22,0.2);  color: #f97316; }
/* AI card CTA */
.ai-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  color: rgba(255,255,255,0.8);
  transition: var(--transition);
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
}
.ai-card-cta:hover { color: var(--white); gap: 12px; }
/* AI bottom banner */
.ai-section-cta {
  text-align: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 50px 40px;
  backdrop-filter: blur(20px);
}
.ai-section-cta h3 {
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}
.ai-section-cta p {
  color: rgba(255,255,255,0.6);
  margin-bottom: 28px;
  font-size: 1rem;
}
.ai-section-cta .btn-primary-mc {
  background: linear-gradient(135deg, #00c6ff, #7c3aed);
  box-shadow: 0 8px 30px rgba(124,58,237,0.3);
  font-size: 1rem;
  padding: 16px 36px;
}

/* ── App Screenshots Slider ───────────────────────────────── */
#screenshots-section {
  padding: 80px 0;
  background: var(--gray-light);
  overflow: hidden;
}
.screenshots-header {
  text-align: center;
  padding: 0 40px;
  margin-bottom: 48px;
}
.slider-track-wrapper {
  overflow: hidden;
  position: relative;
}
.slider-track-wrapper::before,
.slider-track-wrapper::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 100px;
  z-index: 2;
  pointer-events: none;
}
.slider-track-wrapper::before {
  left: 0;
  background: linear-gradient(90deg, var(--gray-light), transparent);
}
.slider-track-wrapper::after {
  right: 0;
  background: linear-gradient(-90deg, var(--gray-light), transparent);
}
.slider-track {
  display: flex;
  gap: 20px;
  animation: slideAuto 30s linear infinite;
  width: max-content;
}
.slider-track:hover { animation-play-state: paused; }
@keyframes slideAuto {
  0% { transform: translateX(0); }
  100% { transform: translateX(calc(-280px * 11 - 20px * 11)); }
}
.slide-item {
  width: 280px;
  flex-shrink: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(35,81,220,0.08);
  transition: var(--transition);
  background: var(--white);
}
.slide-item:hover {
  transform: scale(1.03) translateY(-4px);
  box-shadow: var(--shadow-lg);
  z-index: 1;
}
.slide-item img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}

/* ── CTA Banner ───────────────────────────────────────────── */
#cta-banner {
  padding: 80px 40px;
  background: var(--gradient);
  position: relative;
  overflow: hidden;
  text-align: center;
}
#cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='1' cy='1' r='1' fill='rgba(255,255,255,0.07)'/%3E%3C/svg%3E");
}
.cta-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}
.cta-content h2 {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 900;
  color: var(--white);
  margin-bottom: 14px;
  line-height: 1.2;
}
.cta-content p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 32px;
}
.cta-content .btn-white {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  color: var(--primary);
  font-weight: 800;
  font-size: 1rem;
  padding: 16px 36px;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}
.cta-content .btn-white:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(0,0,0,0.25);
}

/* ── Clients Section ──────────────────────────────────────── */
#clients-section {
  padding: 70px 40px;
  background: var(--white);
}
.clients-header {
  text-align: center;
  margin-bottom: 50px;
}
.clients-header h2 { color: var(--dark); }
.clients-header p { color: var(--gray); margin: 0 auto; max-width: 460px; }
.clients-track-wrapper {
  overflow: hidden;
  position: relative;
}
.clients-track-wrapper::before,
.clients-track-wrapper::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 80px;
  z-index: 2;
  pointer-events: none;
}
.clients-track-wrapper::before { left: 0; background: linear-gradient(90deg, var(--white), transparent); }
.clients-track-wrapper::after  { right: 0; background: linear-gradient(-90deg, var(--white), transparent); }
.clients-track {
  display: flex;
  gap: 24px;
  animation: clientsSlide 25s linear infinite;
  width: max-content;
}
.clients-track:hover { animation-play-state: paused; }
@keyframes clientsSlide {
  0% { transform: translateX(0); }
  100% { transform: translateX(calc(-200px * 6 - 24px * 6)); }
}
.client-logo {
  width: 200px;
  height: 100px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-light);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid rgba(35,81,220,0.06);
  transition: var(--transition);
}
.client-logo:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
  background: var(--white);
  border-color: rgba(35,81,220,0.15);
}
.client-logo img {
  max-height: 60px;
  max-width: 140px;
  object-fit: contain;
  filter: grayscale(40%);
  transition: var(--transition);
}
.client-logo:hover img { filter: grayscale(0%); }

/* ── Testimonial Section ──────────────────────────────────── */
#testimonial-section {
  padding: 100px 40px;
  background: linear-gradient(180deg, #f8faff 0%, #eef3ff 100%);
}
.testimonial-container {
  max-width: 1280px;
  margin: 0 auto;
}
.testimonial-header {
  text-align: center;
  margin-bottom: 60px;
}
.swiper-mc {
  --swiper-pagination-color: var(--primary);
  --swiper-pagination-bullet-inactive-color: #cbd5e1;
  --swiper-pagination-bullet-inactive-opacity: 1;
  padding-bottom: 50px !important;
}
.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(35,81,220,0.06);
  transition: var(--transition);
  height: auto;
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.testimonial-card .video-wrapper {
  position: relative;
  padding-bottom: 52%;
  background: var(--dark);
}
.testimonial-card .video-wrapper iframe {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  border: none;
}
.testimonial-card .card-info {
  padding: 20px 24px 24px;
}
.testimonial-card .person-name {
  font-size: 1rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 3px;
}
.testimonial-card .school-name {
  font-size: 0.82rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
}
.testimonial-card .quote {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.7;
  font-style: italic;
  position: relative;
  padding-left: 16px;
}
.testimonial-card .quote::before {
  content: '"';
  position: absolute;
  left: 0; top: -2px;
  font-size: 1.4rem;
  color: var(--primary);
  font-style: normal;
  font-weight: 900;
  line-height: 1;
}

/* ── FAQ Section ──────────────────────────────────────────── */
#faq-section {
  padding: 100px 40px;
  background: var(--white);
}
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}
.faq-header {
  text-align: center;
  margin-bottom: 56px;
}
.faq-item {
  border: 1px solid rgba(35,81,220,0.1);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
  background: var(--white);
}
.faq-item:hover { border-color: rgba(35,81,220,0.2); }
.faq-item.active { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem;
  color: var(--dark);
  user-select: none;
  gap: 12px;
}
.faq-icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(35,81,220,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  color: var(--primary);
  font-size: 1rem;
  font-weight: 700;
}
.faq-item.active .faq-icon {
  background: var(--primary);
  color: var(--white);
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1), padding 0.3s;
  padding: 0 24px;
  color: var(--gray);
  font-size: 0.95rem;
  line-height: 1.75;
}
.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 24px 22px;
}
.faq-answer ol { padding-left: 20px; margin-top: 8px; }
.faq-answer li { margin-bottom: 6px; }
.faq-answer a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }

/* ── Contact Section (Redesigned) ────────────────────────── */
#contact-section {
  padding: 80px 40px 90px;
  background: linear-gradient(180deg, #f0f4ff 0%, #e8eeff 100%);
  position: relative;
  overflow: hidden;
}
#contact-section::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(35,81,220,0.06) 0%, transparent 70%);
  top: -200px; right: -150px;
  pointer-events: none;
}
.cs-top-label {
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
}
.cs-heading-row {
  text-align: center;
  margin-bottom: 52px;
}
.contact-container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.3fr 1fr;
  gap: 24px;
  position: relative;
  z-index: 1;
}
/* ── Base card ── */
.cs-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  border: 1px solid rgba(35,81,220,0.07);
  box-shadow: 0 4px 24px rgba(35,81,220,0.07);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0;
}
.cs-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 48px rgba(35,81,220,0.13);
  border-color: rgba(35,81,220,0.14);
}
/* Card header row (icon + title) */
.cs-card-icon-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(35,81,220,0.07);
}
.cs-header-icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.cs-card-touch .cs-header-icon   { background: linear-gradient(135deg,#2351DC,#00c6ff); color:#fff; }
.cs-card-services .cs-header-icon { background: linear-gradient(135deg,#7c3aed,#a78bfa); color:#fff; }
.cs-card-app .cs-header-icon      { background: linear-gradient(135deg,#059669,#10b981); color:#fff; }
.cs-card-icon-header h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--dark);
  margin: 0;
}
/* Contact items */
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 16px;
}
.ci-icon-pill {
  width: 42px; height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.ci-pill-blue   { background: rgba(35,81,220,0.08);  color: var(--primary); }
.ci-pill-purple { background: rgba(124,58,237,0.08); color: var(--purple); }
.ci-pill-green  { background: rgba(16,185,129,0.08); color: var(--green); }
.ci-text .ci-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 3px;
}
.ci-text a, .ci-text p {
  font-size: 0.93rem;
  color: var(--dark2);
  font-weight: 600;
  transition: var(--transition);
  margin: 0;
  line-height: 1.5;
}
.ci-text a:hover { color: var(--primary); }
/* Inline demo CTA */
.cs-inline-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 24px;
  width: 100%;
  background: var(--gradient);
  color: var(--white);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 13px 20px;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(35,81,220,0.25);
  margin-top: 20px;
}
.cs-inline-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(35,81,220,0.35);
}
/* Services */
.cs-services-group-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray);
  margin-bottom: 10px;
}
.services-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.service-tag {
  display: inline-flex;
  align-items: center;
  background: rgba(35,81,220,0.05);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 100px;
  border: 1px solid rgba(35,81,220,0.1);
  transition: var(--transition);
  cursor: default;
}
.service-tag:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  transform: translateY(-1px);
}
/* AI service tags */
.service-tag-ai {
  background: rgba(124,58,237,0.06);
  color: var(--purple);
  border-color: rgba(124,58,237,0.15);
}
.service-tag-ai:hover {
  background: var(--purple);
  color: var(--white);
  border-color: var(--purple);
}
/* App download */
.cs-app-tagline {
  font-size: 0.9rem;
  color: var(--gray);
  margin-bottom: 20px;
  line-height: 1.6;
}
.app-download-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}
.app-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: var(--radius);
  border: 1.5px solid rgba(35,81,220,0.12);
  background: var(--white);
  color: var(--dark);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.app-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: var(--transition);
}
.app-btn-play::before  { background: linear-gradient(135deg,rgba(35,81,220,0.05),rgba(0,198,255,0.05)); }
.app-btn-apple::before { background: linear-gradient(135deg,rgba(15,15,15,0.04),rgba(100,100,100,0.04)); }
.app-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(35,81,220,0.15);
  border-color: rgba(35,81,220,0.25);
  color: var(--dark);
}
.app-btn:hover::before { opacity: 1; }
.app-btn-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.app-btn-play .app-btn-icon  { background: linear-gradient(135deg,#2351DC,#00c6ff); color:#fff; }
.app-btn-apple .app-btn-icon { background: linear-gradient(135deg,#1c1c1e,#3a3a3c); color:#fff; }
.app-btn-text { flex: 1; position: relative; z-index: 1; }
.app-btn-text .small { font-size: 0.7rem; color: var(--gray); font-weight: 500; }
.app-btn-text .big   { font-size: 0.97rem; font-weight: 800; color: var(--dark); line-height: 1.2; }
.app-btn-arrow {
  font-size: 1rem;
  color: var(--gray);
  transition: var(--transition);
  position: relative;
  z-index: 1;
}
.app-btn:hover .app-btn-arrow {
  color: var(--primary);
  transform: translateX(4px);
}
/* App stats strip */
.cs-app-stats {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--gray-light);
  border-radius: var(--radius);
  padding: 14px 20px;
  margin-top: auto;
}
.cs-app-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  flex: 1;
}
.cs-app-stat-num {
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--dark);
}
.cs-app-stat-lbl {
  font-size: 0.72rem;
  color: var(--gray);
  font-weight: 500;
}
.cs-app-stat-divider {
  width: 1px;
  height: 32px;
  background: rgba(35,81,220,0.1);
}

/* ── Footer ───────────────────────────────────────────────── */
#footer {
  background: var(--dark);
  padding: 32px 40px;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-logo img { height: 32px; width: auto; filter: brightness(0) invert(1); }
.footer-copy {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}
.footer-socials {
  display: flex;
  gap: 12px;
}
.footer-socials a {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: rgba(255,255,255,0.07);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 1.1rem;
  transition: var(--transition);
  border: 1px solid rgba(255,255,255,0.08);
}
.footer-socials a:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  transform: translateY(-2px);
}

/* ── Back to top ──────────────────────────────────────────── */
.back-to-top-mc {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px; height: 48px;
  background: var(--gradient);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.1rem;
  box-shadow: 0 6px 24px rgba(35,81,220,0.4);
  cursor: pointer;
  border: none;
  z-index: 900;
  opacity: 0;
  transform: translateY(16px);
  transition: var(--transition);
}
.back-to-top-mc.visible {
  opacity: 1;
  transform: translateY(0);
}
.back-to-top-mc:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(35,81,220,0.5);
}

/* ── Modal ────────────────────────────────────────────────── */
.modal-content {
  border-radius: var(--radius-lg) !important;
  border: none !important;
  box-shadow: 0 40px 120px rgba(0,0,0,0.25) !important;
  overflow: hidden;
}
.modal-header {
  background: var(--gradient);
  padding: 24px 28px !important;
  border-bottom: none !important;
}
.modal-header .modal-title {
  color: var(--white) !important;
  font-weight: 800 !important;
  font-size: 1.2rem !important;
}
.modal-header .btn-close { filter: brightness(0) invert(1) !important; }
.modal-body .form-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--dark2);
  margin-bottom: 6px;
}
.modal-body .form-control {
  border-radius: var(--radius-sm) !important;
  border: 1.5px solid rgba(35,81,220,0.15) !important;
  padding: 10px 14px !important;
  font-size: 0.92rem;
  transition: var(--transition);
}
.modal-body .form-control:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 3px rgba(35,81,220,0.12) !important;
}
.modal-footer { border-top: 1px solid rgba(35,81,220,0.08) !important; padding: 16px 24px !important; }
#submit-btn {
  background: var(--gradient) !important;
  border: none !important;
  border-radius: 100px !important;
  padding: 10px 28px !important;
  font-weight: 700 !important;
  transition: var(--transition) !important;
}
#submit-btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md) !important; }

/* ── Study Scanner specifics ──────────────────────────────── */
/* (shares all base .ai-card styles — no overrides needed) */

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1200px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-container { grid-template-columns: 1fr 1fr; }
  .contact-container .cs-card-app { grid-column: 1 / -1; }
}
@media (max-width: 1024px) {
  .hero-container { grid-template-columns: 1fr; gap: 40px; padding: 60px 24px; }
  .hero-visual { display: none; }
  .hero-title { font-size: clamp(2rem, 6vw, 3rem); }
  .hero-desc { max-width: 100%; }
  .hero-stats { justify-content: flex-start; }
  #navbar .mc-nav { padding: 14px 24px; }
  .nav-links, .nav-actions { display: none !important; }
  .hamburger { display: flex !important; }
}
@media (max-width: 768px) {
  #features-section { padding: 70px 24px; }
  #ai-features-section { padding: 70px 24px; }
  #screenshots-section { padding: 60px 0; }
  #cta-banner { padding: 60px 24px; }
  #clients-section { padding: 60px 24px; }
  #testimonial-section { padding: 70px 24px; }
  #faq-section { padding: 70px 24px; }
  #contact-section { padding: 60px 24px; }
  #footer { padding: 28px 24px; }
  .features-grid { grid-template-columns: 1fr; }
  /* AI grid stays 2-col until small mobile */
  .contact-container { grid-template-columns: 1fr; gap: 20px; }
  .contact-container .cs-card-app { grid-column: auto; }
  #contact-section { padding: 60px 20px 70px; }
  .stats-container { flex-direction: column; gap: 0; }
  .stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.1); padding: 24px 24px; }
  .stat-item:last-child { border-bottom: none; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-stats { gap: 24px; }
  .footer-inner { flex-direction: column; text-align: center; align-items: center; }
  #stats-section { padding: 40px 24px; }
  .screenshots-header { padding: 0 24px; }
  .clients-header { padding: 0 24px; }
}
@media (max-width: 600px) {
  /* Collapse AI grid to single column on small phones */
  .ai-cards-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .hero-container { padding: 48px 16px; }
  .hero-title { font-size: 1.9rem; }
  .hero-badge { font-size: 0.72rem; }
  .hero-float-card { display: none; }
  .ai-section-cta { padding: 36px 20px; }
  .ai-card { padding: 28px 20px; }
  .feature-card { padding: 26px 20px; }
  .faq-question { font-size: 0.95rem; padding: 18px 18px; }
  .faq-answer { padding: 0 18px; }
  .faq-item.active .faq-answer { padding: 0 18px 18px; }
}