:root {
  --bg: #FFFFFF;
  --bg2: #F7F8FC;
  --bg3: #EEF0FB;
  --card: #FFFFFF;
  --card2: #F4F5FB;
  --indigo: #1A237E;
  --indigo2: #3949AB;
  --accent: #5C6BC0;
  --purple: #7C4DFF;
  --green: #00897B;
  --gold: #F59E0B;
  --text: #0F172A;
  --text2: #475569;
  --text3: #64748B;
  --border: #E2E8F0;
  --shadow: 0 1px 3px rgba(0,0,0,0.07), 0 4px 16px rgba(26,35,126,0.06);
  --shadow-lg: 0 8px 32px rgba(26,35,126,0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
}

/* ── NAVBAR ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 6%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, #1A237E, #5C6BC0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text2);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--indigo);
}

.nav-cta {
  background: var(--indigo) !important;
  color: white !important;
  padding: 0.45rem 1.2rem;
  border-radius: 8px;
  font-weight: 600 !important;
  font-size: 0.88rem !important;
  transition: background 0.2s !important;
  box-shadow: 0 2px 8px rgba(26,35,126,0.2);
}

.nav-cta:hover {
  background: var(--indigo2) !important;
  color: white !important;
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 7rem 5% 5rem;
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #F0F3FF 0%, #FFFFFF 50%, #F0FDF9 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 900px;
  background: radial-gradient(circle, rgba(26,35,126,0.04) 0%, transparent 65%);
  pointer-events: none;
}

.dots-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: radial-gradient(rgba(92,107,192,0.12) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #EEF2FF;
  border: 1px solid #C7D2FE;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.8rem;
  color: var(--indigo2);
  margin-bottom: 1.8rem;
  font-weight: 600;
}

.hero-badge .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #00897B;
  display: inline-block;
}

.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.4rem, 5.5vw, 4.6rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 1.5rem;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, #1A237E 0%, #3949AB 50%, #00897B 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text2);
  max-width: 620px;
  margin: 0 auto 2.5rem;
  line-height: 1.75;
}

.hero-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.btn-primary {
  background: var(--indigo);
  color: white;
  padding: 0.85rem 2rem;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
  transition: all 0.2s;
  box-shadow: 0 4px 14px rgba(26,35,126,0.28);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  background: var(--indigo2);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26,35,126,0.35);
}

.btn-secondary {
  background: white;
  color: var(--text);
  padding: 0.85rem 2rem;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
  border: 1.5px solid var(--border);
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--indigo);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  gap: 0;
  justify-content: center;
  background: white;
  border-radius: 16px;
  border: 1px solid var(--border);
  max-width: 700px;
  margin: 0 auto;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.stat-item {
  flex: 1;
  text-align: center;
  padding: 1.6rem 1rem;
  border-right: 1px solid var(--border);
}

.stat-item:last-child {
  border-right: none;
}

.stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--indigo);
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text2);
  margin-top: 0.3rem;
  font-weight: 500;
}

/* ── SECTIONS COMMON ── */
section {
  padding: 5rem 6%;
}

.container-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--indigo2);
  margin-bottom: 0.6rem;
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 1rem;
}

.section-sub {
  color: var(--text2);
  font-size: 1rem;
  max-width: 560px;
  line-height: 1.75;
}

.section-header {
  margin-bottom: 3rem;
}

.text-center { text-align: center; }
.margin-auto { margin: 0 auto; }
.margin-bottom-lg { margin-bottom: 2.5rem; }

/* ── FEATURES ── */
.features {
  background: var(--bg2);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.75rem;
  transition: all 0.25s;
  box-shadow: var(--shadow);
}

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

.feature-icon-wrap {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: #EEF2FF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--text2);
  font-size: 0.88rem;
  line-height: 1.65;
}

.feature-tag {
  display: inline-block;
  margin-top: 1rem;
  background: #EEF2FF;
  padding: 0.2rem 0.75rem;
  border-radius: 50px;
  font-size: 0.72rem;
  color: var(--indigo2);
  font-weight: 600;
  letter-spacing: 0.03em;
}

/* ── HOW IT WORKS ── */
.how-section {
  background: white;
}

.how-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 680px;
}

.step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  position: relative;
  padding-bottom: 2.5rem;
}

.step:last-child {
  padding-bottom: 0;
}

.step-line {
  position: absolute;
  left: 19px; top: 42px; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, #C7D2FE, transparent);
}

.step:last-child .step-line {
  display: none;
}

.step-num {
  width: 40px; height: 40px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--indigo);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  z-index: 1;
  box-shadow: 0 4px 12px rgba(26,35,126,0.25);
}

.step-content h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.35rem;
}

.step-content p {
  color: var(--text2);
  font-size: 0.88rem;
  line-height: 1.65;
}

.activity-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.activity-eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--indigo2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.activity-item {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.9rem 1rem;
  display: flex;
  gap: 0.8rem;
  align-items: center;
  margin-bottom: 0.7rem;
}

.activity-item:last-child {
  margin-bottom: 0;
}

.activity-item .em {
  font-size: 1.3rem;
  flex-shrink: 0;
}

.activity-item .a-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}

.activity-item .a-sub {
  font-size: 0.78rem;
  color: var(--text2);
  margin-top: 0.1rem;
}

.a-green {
  color: #00897B !important;
}

/* ── EXAMS ── */
.exams-section {
  background: var(--bg2);
}

.exams-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.9rem;
}

.exam-chip {
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem 0.8rem;
  text-align: center;
  transition: all 0.2s;
  box-shadow: var(--shadow);
}

.exam-chip:hover {
  border-color: var(--indigo);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.exam-chip .emoji {
  font-size: 1.6rem;
  display: block;
  margin-bottom: 0.4rem;
}

.exam-chip .name {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
}

.exam-chip .count {
  font-size: 0.7rem;
  color: var(--text3);
  margin-top: 0.2rem;
}

.exams-footer-text {
  text-align: center;
  margin-top: 1.5rem;
  color: var(--text3);
  font-size: 0.88rem;
}

/* ── TRUST STRIP ── */
.trust-strip {
  background: var(--indigo);
  padding: 1.5rem 6%;
  display: flex;
  gap: 3rem;
  justify-content: center;
  flex-wrap: wrap;
  align-items: center;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: rgba(255,255,255,0.9);
  font-size: 0.88rem;
  font-weight: 500;
}

.trust-item .ti {
  font-size: 1.2rem;
}

/* ── PRICING ── */
.pricing-section {
  background: white;
  padding: 4rem 6%;
}

.pricing-grid {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

.price-card {
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.pro-card {
  border: 2px solid var(--indigo);
  background: linear-gradient(135deg, #F0F3FF, #F0FDF9);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.popular-badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--indigo);
  color: white;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 14px;
  border-radius: 50px;
  letter-spacing: 0.05em;
}

.price-plan-tag {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.pro-tag { color: var(--indigo2); }

.price-amount {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.3rem;
}

.pro-amount { color: var(--indigo); }

.price-period {
  font-size: 0.9rem;
  color: var(--text3);
  font-weight: 400;
}

.price-sub {
  color: var(--text2);
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
}

.price-features {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
  font-size: 0.88rem;
  color: var(--text);
}

.price-features .disabled {
  color: #94A3B8;
}

.btn-full {
  display: block;
  text-align: center;
  border-radius: 10px;
  padding: 0.75rem;
}

/* ── CTA ── */
.cta-section {
  text-align: center;
  background: linear-gradient(135deg, #F0F3FF, #E8F4F0);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cta-section h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 1rem;
}

.cta-section p {
  color: var(--text2);
  max-width: 480px;
  margin: 0 auto 2rem;
  font-size: 0.95rem;
}

/* ── FOOTER ── */
footer {
  background: #0F172A;
  padding: 3.5rem 6% 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, #818CF8, #34D399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
  margin-bottom: 0.75rem;
}

.footer-brand p {
  color: #94A3B8;
  font-size: 0.84rem;
  line-height: 1.75;
  max-width: 240px;
}

.footer-col h4 {
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #E2E8F0;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-col a {
  display: block;
  color: #94A3B8;
  text-decoration: none;
  font-size: 0.84rem;
  margin-bottom: 0.55rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: #E2E8F0;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #1E293B;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  color: #64748B;
  font-size: 0.78rem;
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom-links a {
  color: #64748B;
  text-decoration: none;
  font-size: 0.78rem;
  transition: color 0.2s;
}

.footer-bottom-links a:hover {
  color: #94A3B8;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .how-grid { grid-template-columns: 1fr; gap: 2rem; }
  .pricing-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero-stats { flex-wrap: wrap; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--border); }
  .stat-item:last-child { border-bottom: none; }
  .trust-strip { gap: 1.5rem; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  section { padding: 3.5rem 5%; }
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up  { animation: fadeUp 0.55s ease both; }
.fade-up2 { animation: fadeUp 0.55s 0.15s ease both; }
.fade-up3 { animation: fadeUp 0.55s 0.3s ease both; }