/* ============================================
   ONLINE TUTORING — Global Styles
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --primary-light: #DBEAFE;
  --accent: #0EA5E9;
  --accent-light: #E0F2FE;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --parent-color: #7C3AED;
  --parent-light: #EDE9FE;

  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --gray-900: #0F172A;

  --white: #FFFFFF;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 16px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.12), 0 4px 16px rgba(0,0,0,.08);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.15);
  --shadow-blue: 0 8px 30px rgba(37,99,235,.25);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --transition: all .25s cubic-bezier(.4,0,.2,1);
  --transition-slow: all .5s cubic-bezier(.4,0,.2,1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ---------- Utility ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }

.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.gap-8 { gap: 32px; }
.grid { display: grid; }
.text-center { text-align: center; }

/* ---------- Typography ---------- */
.display-1 { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; }
.display-2 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
.heading-1 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; line-height: 1.25; }
.heading-2 { font-size: 1.25rem; font-weight: 600; }
.body-lg { font-size: 1.125rem; line-height: 1.75; }
.body-sm { font-size: 0.875rem; }
.label { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }

.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }
.text-muted { color: var(--gray-500); }
.text-white { color: var(--white); }
.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius-full);
  font-size: 0.9375rem; font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--primary); color: var(--white);
  box-shadow: var(--shadow-blue);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 12px 36px rgba(37,99,235,.35); }
.btn-secondary {
  background: var(--white); color: var(--primary);
  border-color: var(--primary);
}
.btn-secondary:hover { background: var(--primary-light); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--gray-700); }
.btn-ghost:hover { background: var(--gray-100); }
.btn-parent {
  background: var(--parent-color); color: var(--white);
  box-shadow: 0 8px 24px rgba(124,58,237,.25);
}
.btn-parent:hover { background: #6D28D9; transform: translateY(-2px); }
.btn-accent { background: linear-gradient(135deg, var(--primary), var(--accent)); color: var(--white); box-shadow: var(--shadow-blue); }
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(37,99,235,.4); }
.btn-lg { padding: 16px 32px; font-size: 1rem; }
.btn-sm { padding: 8px 16px; font-size: 0.8125rem; }
.btn-icon { padding: 10px; border-radius: var(--radius-md); }

/* ---------- Badge / Pill ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 12px; border-radius: var(--radius-full);
  font-size: 0.75rem; font-weight: 600;
}
.badge-blue { background: var(--primary-light); color: var(--primary); }
.badge-sky { background: var(--accent-light); color: #0369A1; }
.badge-green { background: #D1FAE5; color: #065F46; }
.badge-purple { background: var(--parent-light); color: var(--parent-color); }
.badge-orange { background: #FEF3C7; color: #92400E; }

/* ---------- Card ---------- */
.card {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

/* ---------- Section Header ---------- */
.section-header { text-align: center; margin-bottom: 56px; }
.section-header .badge { margin-bottom: 16px; }
.section-header p { color: var(--gray-500); max-width: 560px; margin: 16px auto 0; font-size: 1.0625rem; }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gray-100);
  transition: var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-md); }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.25rem; font-weight: 800; color: var(--gray-900);
}
.nav-logo .logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 1rem;
}
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 8px 14px; border-radius: var(--radius-full);
  font-size: 0.9375rem; font-weight: 500; color: var(--gray-600);
  transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--primary); background: var(--primary-light); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  padding: 8px; cursor: pointer; border-radius: var(--radius-sm);
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--gray-700); border-radius: 2px;
  transition: var(--transition);
}
.mobile-menu {
  display: none; flex-direction: column; gap: 4px;
  padding: 16px 24px; border-top: 1px solid var(--gray-100);
  background: var(--white);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 12px 16px; border-radius: var(--radius-md);
  font-weight: 500; color: var(--gray-700);
  transition: var(--transition);
}
.mobile-menu a:hover { background: var(--gray-50); color: var(--primary); }
.mobile-menu .mobile-actions { display: flex; flex-direction: column; gap: 8px; padding-top: 12px; border-top: 1px solid var(--gray-100); margin-top: 8px; }

/* ---------- Hero ---------- */
.hero {
  padding: 160px 0 100px;
  background: linear-gradient(160deg, #F0F7FF 0%, #FFFFFF 50%, #F8F0FF 100%);
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute; bottom: -100px; left: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(124,58,237,.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.hero-label { display: inline-flex; align-items: center; gap: 8px; }
.hero-title { margin: 20px 0 24px; }
.hero-subtitle { color: var(--gray-500); font-size: 1.125rem; line-height: 1.8; margin-bottom: 40px; max-width: 480px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-trust { display: flex; align-items: center; gap: 20px; margin-top: 40px; padding-top: 32px; border-top: 1px solid var(--gray-200); }
.hero-avatars { display: flex; }
.hero-avatars img, .hero-avatar-placeholder {
  width: 36px; height: 36px; border-radius: 50%;
  border: 2px solid white;
  margin-left: -10px;
  object-fit: cover;
}
.hero-avatar-placeholder {
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white; font-size: 0.75rem; font-weight: 700;
}
.hero-avatars :first-child { margin-left: 0; }
.hero-trust-text { font-size: 0.875rem; color: var(--gray-600); }
.hero-trust-text strong { color: var(--gray-800); }

/* Hero Visual */
.hero-visual { position: relative; }
.hero-visual-main {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-xl);
  padding: 32px;
  color: white;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.hero-visual-main::before {
  content: '';
  position: absolute; top: -50px; right: -50px;
  width: 200px; height: 200px;
  background: rgba(255,255,255,.1); border-radius: 50%;
}
.tutor-card-demo { background: rgba(255,255,255,.15); backdrop-filter: blur(10px); border-radius: var(--radius-lg); padding: 20px; }
.tutor-card-demo-header { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }
.tutor-avatar-demo {
  width: 60px; height: 60px; border-radius: 50%;
  background: rgba(255,255,255,.3); display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; font-weight: 700;
}
.tutor-card-demo h3 { font-size: 1.125rem; font-weight: 700; }
.tutor-card-demo p { font-size: 0.875rem; opacity: .8; }
.demo-subjects { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.demo-subject { background: rgba(255,255,255,.2); padding: 4px 10px; border-radius: var(--radius-full); font-size: 0.75rem; font-weight: 500; }
.demo-stats { display: flex; justify-content: space-between; }
.demo-stat { text-align: center; }
.demo-stat .val { font-size: 1.125rem; font-weight: 700; }
.demo-stat .key { font-size: 0.7rem; opacity: .7; }

.floating-card {
  position: absolute;
  background: var(--white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); padding: 14px 18px;
  display: flex; align-items: center; gap: 12px;
  animation: float 4s ease-in-out infinite;
}
.floating-card-1 { top: -20px; right: -30px; animation-delay: 0s; }
.floating-card-2 { bottom: -20px; left: -30px; animation-delay: 2s; }
.floating-icon {
  width: 40px; height: 40px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center; font-size: 1.25rem;
}
.floating-card-1 .floating-icon { background: #D1FAE5; }
.floating-card-2 .floating-icon { background: #FEF3C7; }
.floating-card-text .val { font-size: 0.9375rem; font-weight: 700; color: var(--gray-800); }
.floating-card-text .sub { font-size: 0.75rem; color: var(--gray-500); }

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

/* ---------- Stats ---------- */
.stats-bar { background: var(--primary); padding: 48px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-item { text-align: center; color: white; }
.stat-item .num { font-size: 2.5rem; font-weight: 800; line-height: 1; }
.stat-item .lbl { font-size: 0.9375rem; opacity: .8; margin-top: 6px; }

/* ---------- How It Works ---------- */
.how-it-works { background: var(--gray-50); }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; position: relative; }
.steps-grid::before {
  content: '';
  position: absolute; top: 40px; left: calc(16.66% + 40px); right: calc(16.66% + 40px);
  height: 2px; background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
}
.step-card { text-align: center; padding: 40px 32px; }
.step-num {
  width: 80px; height: 80px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white; font-size: 1.5rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px;
  box-shadow: var(--shadow-blue);
  position: relative; z-index: 1;
}
.step-card h3 { font-size: 1.125rem; font-weight: 700; margin-bottom: 12px; }
.step-card p { color: var(--gray-500); font-size: 0.9375rem; }

/* ---------- Subjects ---------- */
.subjects-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.subject-card {
  padding: 28px 20px; text-align: center; cursor: pointer;
  border-radius: var(--radius-xl);
  transition: var(--transition);
  border: 2px solid transparent;
}
.subject-card:hover { border-color: var(--primary); }
.subject-icon { font-size: 2.5rem; margin-bottom: 12px; }
.subject-card h3 { font-size: 0.9375rem; font-weight: 600; margin-bottom: 4px; }
.subject-card p { font-size: 0.8125rem; color: var(--gray-500); }

/* ---------- Tutors ---------- */
.tutors-scroll-wrapper { overflow: hidden; }
.tutors-scroll {
  display: flex; gap: 24px;
  overflow-x: auto; padding-bottom: 16px;
  scroll-snap-type: x mandatory;
  -ms-overflow-style: none; scrollbar-width: none;
}
.tutors-scroll::-webkit-scrollbar { display: none; }
.tutor-card {
  flex: 0 0 280px; scroll-snap-align: start;
  padding: 24px;
}
.tutor-card-top { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 16px; }
.tutor-avatar {
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 1.25rem; font-weight: 700;
  flex-shrink: 0;
}
.tutor-name { font-size: 1rem; font-weight: 700; margin-bottom: 2px; }
.tutor-subject { font-size: 0.8125rem; color: var(--gray-500); }
.tutor-verified { font-size: 0.7rem; color: var(--success); font-weight: 600; display: flex; align-items: center; gap: 4px; }
.tutor-rating { display: flex; align-items: center; gap: 4px; font-size: 0.8125rem; font-weight: 600; margin-top: 4px; }
.tutor-rating .stars { color: #F59E0B; }
.tutor-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.tutor-footer { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--gray-100); padding-top: 16px; }
.tutor-price { font-size: 1rem; font-weight: 700; color: var(--gray-800); }
.tutor-price span { font-size: 0.8125rem; font-weight: 400; color: var(--gray-500); }
.scroll-controls { display: flex; justify-content: center; gap: 12px; margin-top: 32px; }
.scroll-btn {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--white); border: 2px solid var(--gray-200);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; cursor: pointer; transition: var(--transition);
  color: var(--gray-600);
}
.scroll-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }

/* ---------- Testimonials ---------- */
.testimonials { background: var(--gray-50); }
.testimonials-track-wrapper { overflow: hidden; }
.testimonials-track {
  display: flex; gap: 24px;
  transition: transform .6s cubic-bezier(.4,0,.2,1);
}
.testimonial-card {
  flex: 0 0 calc(33.333% - 16px);
  padding: 32px;
}
.testimonial-quote { font-size: 2.5rem; color: var(--primary); line-height: 1; margin-bottom: 16px; }
.testimonial-text { color: var(--gray-600); line-height: 1.75; font-size: 0.9375rem; margin-bottom: 24px; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 700; font-size: 0.9375rem;
}
.testimonial-name { font-weight: 600; font-size: 0.9375rem; }
.testimonial-role { font-size: 0.8125rem; color: var(--gray-500); }
.testimonial-stars { color: #F59E0B; font-size: 0.875rem; }
.testimonial-controls { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--gray-300); cursor: pointer; transition: var(--transition);
}
.dot.active { background: var(--primary); width: 24px; border-radius: 4px; }

/* ---------- Pricing ---------- */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.pricing-card { padding: 40px 32px; }
.pricing-card.featured {
  background: linear-gradient(160deg, var(--primary), var(--primary-dark));
  color: white; transform: scale(1.04);
  box-shadow: var(--shadow-xl);
}
.pricing-card.featured:hover { transform: scale(1.04) translateY(-4px); }
.pricing-badge { margin-bottom: 16px; }
.pricing-name { font-size: 1.125rem; font-weight: 700; margin-bottom: 8px; }
.pricing-desc { font-size: 0.875rem; margin-bottom: 28px; }
.pricing-card:not(.featured) .pricing-desc { color: var(--gray-500); }
.pricing-card.featured .pricing-desc { color: rgba(255,255,255,.75); }
.pricing-price { margin-bottom: 32px; }
.pricing-price .amount { font-size: 3rem; font-weight: 800; line-height: 1; }
.pricing-price .period { font-size: 0.9375rem; opacity: .7; }
.pricing-features { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; }
.pricing-features li { display: flex; align-items: center; gap: 10px; font-size: 0.9375rem; }
.pricing-features li::before { content: '✓'; font-weight: 700; }
.pricing-card:not(.featured) .pricing-features li::before { color: var(--success); }
.pricing-card.featured .pricing-features li::before { color: rgba(255,255,255,.9); }
.pricing-card:not(.featured) .pricing-features li { color: var(--gray-600); }
.pricing-card.featured .pricing-features li { color: rgba(255,255,255,.85); }
.btn-white { background: white; color: var(--primary); }
.btn-white:hover { background: var(--primary-light); }
.btn-outline-white { border: 2px solid rgba(255,255,255,.4); color: white; }
.btn-outline-white:hover { background: rgba(255,255,255,.1); border-color: white; }

/* ---------- FAQ ---------- */
.faq { background: var(--gray-50); }
.faq-list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--white); border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100); overflow: hidden;
}
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; font-size: 0.9375rem; font-weight: 600;
  color: var(--gray-800); text-align: left; cursor: pointer;
  transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.875rem; font-weight: 700; flex-shrink: 0;
  transition: var(--transition);
}
.faq-item.open .faq-icon { background: var(--primary); color: white; transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s cubic-bezier(.4,0,.2,1), padding .4s; }
.faq-answer-inner { padding: 0 24px 20px; color: var(--gray-500); font-size: 0.9375rem; line-height: 1.75; }
.faq-item.open .faq-answer { max-height: 200px; }

/* ---------- CTA Banner ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  padding: 80px 0; text-align: center; color: white;
}
.cta-banner h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 800; margin-bottom: 16px; }
.cta-banner p { font-size: 1.0625rem; opacity: .85; margin-bottom: 40px; }
.cta-banner-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.footer { background: var(--gray-900); color: var(--gray-400); padding: 72px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 56px; }
.footer-brand .nav-logo { color: white; margin-bottom: 16px; }
.footer-desc { font-size: 0.9375rem; line-height: 1.75; max-width: 300px; }
.footer-social { display: flex; gap: 10px; margin-top: 24px; }
.social-btn {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--gray-800); color: var(--gray-400);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9375rem; transition: var(--transition);
}
.social-btn:hover { background: var(--primary); color: white; }
.footer-col h4 { color: white; font-size: 0.9375rem; font-weight: 600; margin-bottom: 20px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { font-size: 0.9375rem; transition: var(--transition); }
.footer-col ul a:hover { color: white; }
.footer-newsletter input {
  width: 100%; padding: 10px 16px; border-radius: var(--radius-full);
  background: var(--gray-800); border: 1px solid var(--gray-700);
  color: white; margin-bottom: 10px; font-size: 0.875rem;
}
.footer-newsletter input::placeholder { color: var(--gray-500); }
.footer-newsletter input:focus { outline: none; border-color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--gray-800); padding-top: 32px; display: flex; align-items: center; justify-content: space-between; flex-wrap: gap; }
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { font-size: 0.875rem; transition: var(--transition); }
.footer-bottom-links a:hover { color: white; }
.footer-copy { font-size: 0.875rem; }

/* ---------- Browse Tutors Page ---------- */
.page-hero { padding: 140px 0 60px; background: linear-gradient(160deg, #F0F7FF, white); border-bottom: 1px solid var(--gray-100); }
.page-hero h1 { margin-bottom: 12px; }
.page-hero p { color: var(--gray-500); font-size: 1.0625rem; }
.tutors-layout { display: grid; grid-template-columns: 280px 1fr; gap: 32px; padding: 48px 0; }
.filters-sidebar { position: sticky; top: 96px; height: fit-content; }
.filter-card { padding: 24px; margin-bottom: 16px; }
.filter-title { font-size: 0.875rem; font-weight: 700; color: var(--gray-700); margin-bottom: 16px; text-transform: uppercase; letter-spacing: .05em; }
.filter-group { display: flex; flex-direction: column; gap: 10px; }
.filter-check { display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: 0.9375rem; color: var(--gray-600); }
.filter-check input[type=checkbox] {
  width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer;
}
.filter-check:hover { color: var(--gray-900); }
.range-slider { width: 100%; accent-color: var(--primary); }
.range-label { display: flex; justify-content: space-between; font-size: 0.8125rem; color: var(--gray-500); margin-top: 8px; }
.search-box {
  display: flex; align-items: center; gap: 12px; padding: 12px 20px;
  background: var(--white); border: 2px solid var(--gray-200); border-radius: var(--radius-full);
  margin-bottom: 24px; transition: var(--transition);
}
.search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-light); }
.search-box input { flex: 1; font-size: 0.9375rem; color: var(--gray-700); }
.search-box input::placeholder { color: var(--gray-400); }
.search-icon { color: var(--gray-400); font-size: 1rem; }
.tutors-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.tutors-grid .tutor-card { flex: none; }
.results-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.results-count { font-size: 0.9375rem; color: var(--gray-600); }
.sort-select {
  padding: 8px 14px; border-radius: var(--radius-full);
  border: 1.5px solid var(--gray-200); font-size: 0.875rem;
  background: white; color: var(--gray-700); cursor: pointer;
}
.sort-select:focus { outline: none; border-color: var(--primary); }

/* ---------- Tutor Profile Page ---------- */
.profile-hero { padding: 140px 0 60px; background: linear-gradient(160deg, #F0F7FF, white); }
.profile-header { display: flex; gap: 40px; align-items: flex-start; }
.profile-avatar-lg {
  width: 120px; height: 120px; border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 2.5rem; font-weight: 700;
  flex-shrink: 0; box-shadow: var(--shadow-blue);
}
.profile-info h1 { font-size: 2rem; font-weight: 800; margin-bottom: 8px; }
.profile-meta { display: flex; gap: 20px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
.profile-meta-item { display: flex; align-items: center; gap: 6px; font-size: 0.9375rem; color: var(--gray-600); }
.profile-layout { display: grid; grid-template-columns: 1fr 340px; gap: 32px; padding: 48px 0; }
.profile-content { display: flex; flex-direction: column; gap: 24px; }
.profile-section { padding: 32px; }
.profile-section h2 { font-size: 1.125rem; font-weight: 700; margin-bottom: 20px; }
.availability-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.day-col { text-align: center; }
.day-label { font-size: 0.75rem; font-weight: 600; color: var(--gray-500); margin-bottom: 8px; text-transform: uppercase; }
.time-slot {
  padding: 6px 0; border-radius: var(--radius-sm);
  font-size: 0.7rem; text-align: center; margin-bottom: 4px; cursor: pointer;
  transition: var(--transition);
}
.time-slot.available { background: var(--primary-light); color: var(--primary); }
.time-slot.available:hover { background: var(--primary); color: white; }
.time-slot.booked { background: var(--gray-100); color: var(--gray-400); cursor: not-allowed; }
.booking-card { padding: 32px; position: sticky; top: 96px; }
.booking-price { font-size: 2rem; font-weight: 800; margin-bottom: 4px; }
.booking-price span { font-size: 1rem; font-weight: 400; color: var(--gray-500); }
.booking-form { display: flex; flex-direction: column; gap: 14px; margin: 24px 0; }
.form-field label { display: block; font-size: 0.8125rem; font-weight: 600; color: var(--gray-600); margin-bottom: 6px; }
.form-field select, .form-field input {
  width: 100%; padding: 10px 14px; border-radius: var(--radius-md);
  border: 1.5px solid var(--gray-200); font-size: 0.9375rem;
  background: var(--gray-50); transition: var(--transition);
}
.form-field select:focus, .form-field input:focus { outline: none; border-color: var(--primary); background: white; }
.review-item { padding: 20px 0; border-bottom: 1px solid var(--gray-100); }
.review-item:last-child { border-bottom: none; }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.review-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.875rem;
}

/* ---------- Login Pages ---------- */
.login-page { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; }
.login-visual {
  background: linear-gradient(160deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  padding: 48px; position: relative; overflow: hidden;
}
.login-visual.parent-visual { background: linear-gradient(160deg, var(--parent-color), #A855F7); }
.login-visual::before {
  content: '';
  position: absolute; top: -100px; right: -100px;
  width: 300px; height: 300px;
  background: rgba(255,255,255,.1); border-radius: 50%;
}
.login-visual-content { position: relative; z-index: 1; text-align: center; color: white; }
.login-visual-icon { font-size: 5rem; margin-bottom: 24px; }
.login-visual-content h2 { font-size: 2rem; font-weight: 800; margin-bottom: 16px; }
.login-visual-content p { opacity: .85; font-size: 1.0625rem; line-height: 1.75; max-width: 340px; margin: 0 auto; }
.login-visual-badges { display: flex; gap: 12px; justify-content: center; margin-top: 32px; flex-wrap: wrap; }
.login-visual-badge {
  background: rgba(255,255,255,.2); backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.3);
  padding: 8px 18px; border-radius: var(--radius-full);
  font-size: 0.875rem; font-weight: 500; color: white;
}
.login-form-side {
  display: flex; align-items: center; justify-content: center;
  padding: 48px;
}
.login-form-inner { width: 100%; max-width: 420px; }
.login-back { display: inline-flex; align-items: center; gap: 8px; color: var(--gray-500); font-size: 0.875rem; margin-bottom: 40px; transition: var(--transition); }
.login-back:hover { color: var(--primary); }
.login-form-inner h1 { font-size: 1.75rem; font-weight: 800; margin-bottom: 8px; }
.login-form-inner .subtitle { color: var(--gray-500); margin-bottom: 36px; font-size: 0.9375rem; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 600; color: var(--gray-700); margin-bottom: 8px; }
.input-wrapper { position: relative; }
.input-wrapper .input-icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--gray-400); font-size: 1rem; }
.form-input {
  width: 100%; padding: 12px 16px 12px 42px;
  border: 1.5px solid var(--gray-200); border-radius: var(--radius-md);
  font-size: 0.9375rem; transition: var(--transition);
  background: var(--gray-50);
}
.form-input:focus { outline: none; border-color: var(--primary); background: white; box-shadow: 0 0 0 4px var(--primary-light); }
.form-input.parent-input:focus { border-color: var(--parent-color); box-shadow: 0 0 0 4px var(--parent-light); }
.form-options { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; }
.form-check { display: flex; align-items: center; gap: 8px; font-size: 0.875rem; color: var(--gray-600); cursor: pointer; }
.form-check input { accent-color: var(--primary); }
.form-link { font-size: 0.875rem; color: var(--primary); font-weight: 600; }
.form-link.parent-link { color: var(--parent-color); }
.divider { text-align: center; position: relative; margin: 24px 0; }
.divider::before {
  content: ''; position: absolute; top: 50%; left: 0; right: 0;
  height: 1px; background: var(--gray-200);
}
.divider span { background: white; padding: 0 12px; color: var(--gray-400); font-size: 0.875rem; position: relative; }
.social-logins { display: flex; gap: 12px; }
.social-login-btn {
  flex: 1; padding: 11px; border-radius: var(--radius-md);
  border: 1.5px solid var(--gray-200); background: white;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 0.875rem; font-weight: 500; color: var(--gray-700);
  cursor: pointer; transition: var(--transition);
}
.social-login-btn:hover { border-color: var(--gray-400); background: var(--gray-50); }
.switch-login { text-align: center; margin-top: 28px; font-size: 0.875rem; color: var(--gray-500); }
.switch-login a { font-weight: 600; color: var(--primary); margin-left: 4px; }
.switch-login a.parent-link { color: var(--parent-color); }
.login-submit { width: 100%; }

/* ---------- Scroll Reveal ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- Toast ---------- */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 12px; }
.toast {
  background: var(--gray-900); color: white;
  padding: 14px 20px; border-radius: var(--radius-lg);
  font-size: 0.9375rem; box-shadow: var(--shadow-xl);
  display: flex; align-items: center; gap: 10px;
  transform: translateX(120%); transition: transform .4s cubic-bezier(.4,0,.2,1);
  max-width: 320px;
}
.toast.show { transform: none; }
.toast-icon { font-size: 1.25rem; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .hero { padding: 130px 0 80px; }
  .steps-grid::before { display: none; }
  .steps-grid { grid-template-columns: 1fr; gap: 20px; }
  .subjects-grid { grid-template-columns: repeat(3, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .pricing-card.featured { transform: none; }
  .pricing-card.featured:hover { transform: translateY(-4px); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .tutors-layout { grid-template-columns: 1fr; }
  .filters-sidebar { position: static; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .profile-layout { grid-template-columns: 1fr; }
  .booking-card { position: static; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-card { flex: 0 0 calc(50% - 12px); }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .nav-links, .nav-actions { display: none; }
  .nav-toggle { display: flex; }
  .subjects-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-actions { flex-direction: column; }
  .hero-trust { flex-direction: column; align-items: flex-start; gap: 12px; }
  .login-page { grid-template-columns: 1fr; }
  .login-visual { display: none; }
  .login-form-side { padding: 32px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .profile-header { flex-direction: column; }
  .filters-sidebar { grid-template-columns: 1fr; }
  .testimonial-card { flex: 0 0 100%; }
}

@media (max-width: 480px) {
  .subjects-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}