:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-alt: #eef3ff;
  --text: #0b1220;
  --muted: #475467;
  --line: #dbe4f0;
  --primary: #1f3fbb;
  --primary-dark: #16319a;
  --accent: #ea5b2a;
  --success: #12715b;
  --danger: #b42318;
  --sat: #1f3fbb;
  --gre: #6a3df0;
  --gmat: #00875a;
  --shadow: 0 24px 50px rgba(11, 18, 32, 0.08);
  --shadow-soft: 0 8px 24px rgba(11, 18, 32, 0.06);
  --radius: 20px;
  --radius-sm: 14px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f9fbff 0%, #f3f6fb 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { letter-spacing: -0.02em; }
:focus-visible { outline: 3px solid rgba(31, 63, 187, 0.45); outline-offset: 2px; border-radius: 6px; }
.skip-link { position: absolute; left: -9999px; top: -9999px; }
.skip-link:focus { left: 1rem; top: 1rem; background: var(--primary); color: #fff; padding: 0.6rem 1rem; border-radius: 8px; z-index: 200; }

.container { width: min(1200px, calc(100% - 2rem)); margin: 0 auto; }
.section { padding: 4.5rem 0; }
.section-alt { background: #eef3fb; }
.page-main { min-height: calc(100vh - 160px); }

.eyebrow {
  margin: 0 0 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--primary);
}
.lead, .body-copy { color: var(--muted); line-height: 1.75; }
.page-title { margin: 0.2rem 0 1rem; font-size: clamp(2rem, 4vw, 3.6rem); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(255,255,255,0.88);
  border-bottom: 1px solid rgba(219,228,240,0.9);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.85rem 0; }
.brand { display: flex; align-items: center; gap: 0.9rem; }
.nav { display: flex; gap: 1rem; color: var(--muted); flex-wrap: wrap; font-size: 0.95rem; font-weight: 500; }
.nav a { padding: 0.35rem 0.2rem; border-bottom: 2px solid transparent; transition: color 0.15s ease, border-color 0.15s ease; }
.nav a.active, .nav a:hover { color: var(--primary); border-color: var(--primary); }
.brand-lockup { max-height: 52px; width: auto; display: block; }
.brand-logo { align-items: center; }

/* Hero */
.hero { padding: 4.5rem 0 3.5rem; }
.hero-illustration { width: 100%; max-width: 460px; margin: 0 auto 0.5rem; display: block; }
.hero-grid, .practice-layout, .tutor-profile-grid, .dashboard-grid, .feature-grid, .pricing-grid, .steps-grid, .contact-grid {
  display: grid;
  gap: 1.5rem;
}
.hero-grid-wide { grid-template-columns: 1.15fr 0.85fr; align-items: center; }
.hero h1 { margin: 0 0 1rem; font-size: clamp(2.2rem, 4.6vw, 4rem); line-height: 1.05; }
.hero-copy { max-width: 64ch; color: var(--muted); font-size: 1.08rem; line-height: 1.7; }
.hero-actions { display: flex; gap: 0.9rem; margin: 1.4rem 0 1.8rem; flex-wrap: wrap; }
.hero-trust {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}
.hero-trust li {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  box-shadow: var(--shadow-soft);
}
.hero-trust strong { display: block; font-size: 1.1rem; color: var(--text); }
.hero-trust span { color: var(--muted); font-size: 0.85rem; display: block; margin-top: 0.2rem; }

/* Buttons */
.btn {
  border: 0;
  border-radius: 999px;
  padding: 0.95rem 1.4rem;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.16s ease, background 0.16s ease, color 0.16s ease, box-shadow 0.16s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1;
}
.btn:hover { transform: translateY(-1px); }
.btn-small { padding: 0.7rem 1rem; font-size: 0.92rem; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 20px rgba(31, 63, 187, 0.25); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #fff; color: var(--text); border: 1px solid var(--line); }
.btn-on-dark { background: rgba(255,255,255,0.12); color: #fff; border: 1px solid rgba(255,255,255,0.25); }
.btn-on-dark:hover { background: rgba(255,255,255,0.22); color: #fff; }
.text-link { color: var(--primary); font-weight: 700; }
.text-link:hover { text-decoration: underline; }

/* Surfaces */
.stat-card, .panel, .feature-card, .test-card, .module-card-large, .testimonial-card, .step-card, .pricing-card, .module-tile, .exam-tile, .city-card, .review-item, .faq-item {
  background: var(--surface);
  border: 1px solid rgba(219,228,240,0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}
.panel { padding: 1.4rem; }
.panel-h { margin: 0 0 0.6rem; font-size: 1.05rem; }
.hero-side-stack { display: grid; gap: 1rem; }
.top-score-card { background: linear-gradient(135deg, #16319a, #4368ff); color: white; border-color: rgba(255,255,255,0.18); }
.top-score-card p { color: rgba(255,255,255,0.85); }
.score-label { opacity: 0.85; font-size: 0.9rem; }
.score-value { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 800; margin: 0.4rem 0 0.8rem; line-height: 1.15; }
.mini-list { margin: 0; padding-left: 1.1rem; color: var(--muted); line-height: 1.75; }
.tutor-glance .mini-list { padding-left: 0; list-style: none; }
.tutor-glance .mini-list li { padding: 0.35rem 0; border-bottom: 1px solid rgba(219,228,240,0.7); }
.tutor-glance .mini-list li:last-child { border: 0; }

/* Section headings */
.section-heading { max-width: 800px; margin-bottom: 2rem; }
.compact-heading { margin-bottom: 1.5rem; }
.section-heading h2 { margin: 0; font-size: clamp(1.6rem, 2.6vw, 2.4rem); }

/* Feature grids */
.feature-grid { grid-template-columns: repeat(3, 1fr); }
.feature-grid-3 { grid-template-columns: repeat(3, 1fr); }
.feature-grid-2 { grid-template-columns: repeat(2, 1fr); }
.feature-card, .module-card-large, .testimonial-card, .step-card, .pricing-card { padding: 1.5rem; }
.feature-card p, .module-card-large p, .testimonial-card p, .step-card p, .pricing-card p { color: var(--muted); line-height: 1.7; }
.feature-card h3, .module-card-large h3, .step-card h3, .pricing-card h3 { margin: 0.4rem 0 0.6rem; }
.exam-card { position: relative; overflow: hidden; }
.exam-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
  margin-bottom: 1rem;
  background: #eef2ff;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.card-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1rem; }
.sat-accent { border-top: 4px solid var(--sat); }
.gre-accent { border-top: 4px solid var(--gre); }
.gmat-accent { border-top: 4px solid var(--gmat); }
.exam-card.gre-accent .exam-pill { background: #efeaff; color: var(--gre); }
.exam-card.gmat-accent .exam-pill { background: #e3f6ec; color: var(--gmat); }

/* Steps */
.steps-grid { grid-template-columns: repeat(2, 1fr); }
.steps-grid-4 { grid-template-columns: repeat(4, 1fr); }
.step-card { padding: 1.4rem; }
.step-card span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  background: var(--surface-alt);
  color: var(--primary);
  font-weight: 800;
  margin-bottom: 0.9rem;
}
.split-callout { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 1.5rem; align-items: start; }

/* CTA banners */
.cta-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  background: #fff;
  border: 1px solid var(--line);
  padding: 2rem;
  border-radius: 24px;
  box-shadow: var(--shadow);
  flex-wrap: wrap;
}
.cta-banner h2 { margin: 0.3rem 0; }
.cta-banner .lead { margin: 0; }

/* Practice/diagnostic UI */
.exam-selector, .module-selector { display: grid; gap: 1rem; }
.exam-selector { grid-template-columns: repeat(3, 1fr); margin-bottom: 1rem; }
.module-selector { grid-template-columns: repeat(3, 1fr); }
.module-tile, .exam-tile {
  padding: 1rem 1.1rem;
  text-align: left;
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--surface);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.module-tile:hover, .exam-tile:hover { transform: translateY(-1px); }
.module-tile strong, .exam-tile strong { display: block; margin-bottom: 0.3rem; font-size: 1rem; }
.module-tile span, .exam-tile span { color: var(--muted); font-size: 0.9rem; }
.module-tile.active, .exam-tile.active { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(31,63,187,0.14); }
.exam-tile.gre-accent.active { box-shadow: 0 0 0 3px rgba(106,61,240,0.18); border-color: var(--gre); }
.exam-tile.gmat-accent.active { box-shadow: 0 0 0 3px rgba(0,135,90,0.18); border-color: var(--gmat); }

.practice-layout { grid-template-columns: 0.82fr 1.18fr; align-items: start; }
.practice-sidebar h2 { margin-top: 0; font-size: clamp(1.5rem, 2.4vw, 2.2rem); }
.practice-sidebar p, .practice-sidebar li { color: var(--muted); line-height: 1.7; }
.practice-tip { margin-top: 1rem; font-size: 0.9rem; }
.check-list { padding-left: 1.2rem; }
.timer-box {
  margin-top: 1.2rem;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1rem 1.1rem;
}
.timer-box span { display: block; color: var(--muted); font-size: 0.9rem; }
.timer-box strong { font-size: 2rem; font-variant-numeric: tabular-nums; }
.compact-panel { margin-top: 1rem; }
.metric-row { display: flex; justify-content: space-between; margin: 0.55rem 0; color: var(--muted); }
.metric-row strong { color: var(--text); }

.test-card { padding: 1.5rem; }
.test-card-header, .question-meta, .test-nav { display: flex; align-items: center; gap: 1rem; }
.test-card-header { justify-content: space-between; }
.question-meta { justify-content: flex-start; margin: 1rem 0 1.25rem; flex-wrap: wrap; }
.mini-label { color: var(--muted); font-size: 0.9rem; }
.question-prompt {
  background: #fbfcff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1.2rem 1.3rem;
  line-height: 1.7;
  margin-bottom: 1.1rem;
  white-space: pre-wrap;
  font-size: 1.02rem;
}
.choices { display: grid; gap: 0.7rem; }
.choice {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: start;
  padding: 0.95rem 1rem;
  border: 1px solid var(--line);
  background: white;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.choice:hover { border-color: rgba(31,63,187,0.55); }
.choice.selected { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(31,63,187,0.14); }
.choice-letter, .pill { display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; }
.choice-letter { width: 30px; height: 30px; background: #eef2ff; color: var(--primary); font-weight: 700; }
.pill { padding: 0.5rem 0.85rem; background: var(--surface-alt); color: var(--primary); font-weight: 600; font-size: 0.9rem; }
.pill-muted { background: #f2f4f7; color: var(--muted); }
.test-nav { margin-top: 1.2rem; justify-content: space-between; }

/* Dashboard */
.dashboard-grid { grid-template-columns: 0.8fr 1fr 1fr; }
.result-summary { background: linear-gradient(180deg, #0f172a, #1e293b); color: white; }
.result-summary p { color: rgba(255,255,255,0.85); }
.result-score { font-size: clamp(2rem, 3.5vw, 3.2rem); font-weight: 800; margin: 0.35rem 0; }
.breakdown-rows { display: grid; gap: 0.85rem; }
.breakdown-row { display: grid; gap: 0.4rem; }
.breakdown-head { display: flex; justify-content: space-between; gap: 1rem; font-weight: 600; font-size: 0.95rem; }
.progress { height: 10px; border-radius: 999px; background: #eaecf0; overflow: hidden; }
.progress > span { display: block; height: 100%; background: linear-gradient(90deg, var(--primary), #6e8aff); }
.recommendations-list { margin: 0; padding-left: 1.2rem; color: var(--muted); line-height: 1.75; }
.result-recommendations-wide { grid-column: span 2; }

/* Review */
.review-list { display: grid; gap: 1rem; }
.review-item { padding: 1.2rem 1.3rem; }
.review-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 0.6rem; font-weight: 600; color: var(--muted); font-size: 0.92rem; }
.review-badge { padding: 0.35rem 0.7rem; border-radius: 999px; font-size: 0.78rem; }
.review-correct .review-badge { background: #e3f6ec; color: var(--success); }
.review-incorrect .review-badge { background: #fde8e3; color: var(--danger); }
.review-prompt { background: #fbfcff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 0.95rem 1.05rem; margin-bottom: 0.7rem; line-height: 1.6; }
.review-meta { margin: 0.35rem 0; color: var(--text); line-height: 1.6; }
.review-meta strong { color: var(--text); }

/* Contact */
.contact-grid { grid-template-columns: 0.9fr 1.1fr; }
.contact-channels { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 0.8rem; }
.lead-form { display: grid; gap: 1rem; }
.lead-form label { display: grid; gap: 0.45rem; font-weight: 600; color: var(--text); font-size: 0.95rem; }
.lead-form input, .lead-form textarea, .lead-form select {
  width: 100%;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.lead-form input:focus, .lead-form textarea:focus, .lead-form select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(31,63,187,0.15);
}
.form-helper { margin: 0; color: var(--muted); font-size: 0.9rem; line-height: 1.6; }
.form-status { margin: 0; font-weight: 600; }
.form-status.success { color: var(--success); }
.form-status.error { color: var(--danger); }

/* Tutors */
.professor-profile-card { display: grid; gap: .9rem; }
.professor-photo { width: 100%; max-width: 220px; aspect-ratio: 1 / 1; object-fit: cover; border-radius: 20px; border: 1px solid var(--line); }
.has-photo { align-content: start; }
.muted-inline { color: var(--muted); }

/* Pricing */
.pricing-grid-3 { grid-template-columns: repeat(3, 1fr); align-items: stretch; }
.pricing-card { padding: 1.6rem; display: grid; gap: 0.7rem; align-content: start; position: relative; }
.pricing-badge { display: inline-block; padding: 0.35rem 0.8rem; background: var(--surface-alt); color: var(--primary); border-radius: 999px; font-weight: 700; font-size: 0.78rem; letter-spacing: 0.05em; text-transform: uppercase; width: fit-content; }
.pricing-value { font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 800; line-height: 1; }
.pricing-value span { font-size: 1rem; color: var(--muted); font-weight: 500; }
.pricing-conv { margin: 0; color: var(--muted); font-size: 0.9rem; }
.pricing-h { margin: 0.3rem 0 0.1rem; font-size: 1rem; font-weight: 700; }
.pricing-why { margin: 0.6rem 0 0; font-size: 0.9rem; color: var(--muted); line-height: 1.6; padding-top: 0.7rem; border-top: 1px dashed var(--line); }
.pricing-why strong { color: var(--text); }
.pricing-card-featured { border: 2px solid var(--primary); box-shadow: 0 12px 30px rgba(31,63,187,0.18); }
.pricing-card-featured::before { content: 'Most students choose this'; position: absolute; top: -0.7rem; left: 1.6rem; background: var(--primary); color: #fff; font-size: 0.72rem; font-weight: 700; padding: 0.3rem 0.7rem; border-radius: 999px; letter-spacing: 0.04em; }
.pricing-card-dark { background: linear-gradient(180deg, #0f172a, #1e2a4d); color: white; border-color: rgba(255,255,255,0.12); }
.pricing-card-dark .pricing-badge { background: rgba(255,255,255,0.15); color: #fff; }
.pricing-card-dark .pricing-value span, .pricing-card-dark .mini-list, .pricing-card-dark .pricing-conv, .pricing-card-dark p { color: rgba(255,255,255,0.85); }
.pricing-card-dark .pricing-h { color: #fff; }
.pricing-card-dark .pricing-why { color: rgba(255,255,255,0.78); border-color: rgba(255,255,255,0.18); }
.pricing-card-dark .pricing-why strong { color: #fff; }

.pricing-packages { margin-top: 2rem; padding: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.pricing-packages-h { margin: 0 0 0.8rem; font-size: 1.1rem; }
.packages-grid { list-style: none; padding: 0; margin: 0 0 0.9rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.8rem; }
.packages-grid li { padding: 0.9rem 1rem; background: var(--surface-alt); border-radius: var(--radius-sm); }
.packages-grid strong { display: block; font-size: 1.05rem; margin-bottom: 0.15rem; }
.packages-grid span { color: var(--muted); font-size: 0.88rem; }
@media (max-width: 720px) { .packages-grid { grid-template-columns: 1fr; } }

/* Cities */
.cities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.8rem;
}
.city-card {
  display: grid;
  gap: 0.25rem;
  padding: 1rem 1.1rem;
  text-decoration: none;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.city-card:hover { transform: translateY(-1px); border-color: rgba(31,63,187,0.4); box-shadow: var(--shadow); }
.city-card strong { color: var(--text); font-size: 1.05rem; }
.city-card span { color: var(--muted); font-size: 0.88rem; }

/* Schools list */
.schools-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.5rem 1rem;
  color: var(--muted);
}
.schools-grid li { padding: 0.4rem 0.7rem; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; font-size: 0.92rem; }
.city-schools { padding-left: 1.1rem; }

/* FAQ */
.faq-grid { display: grid; gap: 0.7rem; }
.faq-item { padding: 0; }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1rem 1.2rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--primary);
  font-weight: 400;
  transition: transform 0.15s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  margin: 0;
  padding: 0 1.2rem 1.1rem;
  color: var(--muted);
  line-height: 1.7;
}

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: white; color: var(--muted); padding: 1.5rem 0; }
.footer-wrap { display: flex; align-items: center; justify-content: space-between; gap: 1.2rem; flex-wrap: wrap; }
.footer-tag { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.9rem; max-width: 520px; }
.footer-nav { display: flex; gap: 1rem; flex-wrap: wrap; font-size: 0.95rem; }
.footer-nav a { color: var(--muted); }
.footer-nav a:hover { color: var(--primary); }

/* Utility */
.ui-note { color: var(--muted); font-size: .92rem; }

/* Responsive */
/* ── Tutor spotlight card in contact section ── */
.tutor-spotlight {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}
.tutor-spotlight-photo {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 3px solid var(--primary);
  flex-shrink: 0;
}
.tutor-spotlight-info { display: flex; flex-direction: column; }
.tutor-spotlight-info strong { font-size: 1.05rem; color: var(--text); }
.tutor-spotlight-info span { font-size: 0.85rem; color: var(--muted); margin-top: 0.15rem; }
.tutor-quote {
  margin: 0 0 1.2rem;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--primary);
  background: var(--surface-alt);
  border-radius: 0 10px 10px 0;
  font-style: italic;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
}
.contact-channels { display: flex; flex-direction: column; gap: 0.4rem; margin-top: 1rem; }

/* ── Hamburger menu ── */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
  cursor: pointer;
  border-radius: 8px;
  z-index: 60;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--text);
  border-radius: 3px;
  transition: transform 0.22s ease, opacity 0.22s ease;
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0;
  background: #fff;
  border-top: 1px solid var(--line);
  padding: 0.5rem 1rem 1rem;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 0.8rem 0.4rem;
  border-bottom: 1px solid var(--line);
  font-weight: 500;
  color: var(--muted);
  font-size: 1rem;
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a.active, .mobile-nav a:hover { color: var(--primary); }
.mobile-nav .btn { text-align: center; width: 100%; margin-top: 0.5rem; }

/* ── Responsive breakpoints ── */
@media (max-width: 1100px) {
  .hero-grid-wide, .practice-layout, .dashboard-grid, .tutor-profile-grid, .feature-grid, .feature-grid-2, .feature-grid-3, .steps-grid, .steps-grid-4, .pricing-grid, .pricing-grid-3, .split-callout, .module-selector, .exam-selector, .contact-grid {
    grid-template-columns: 1fr;
  }
  .hero-trust { grid-template-columns: repeat(2, 1fr); }
  .result-recommendations-wide { grid-column: auto; }
}

@media (max-width: 720px) {
  /* Nav */
  .nav { display: none; }
  .nav-wrap > .btn-primary { display: none; } /* hidden — inside mobile-nav instead */
  .menu-toggle { display: flex; }

  /* Layout */
  .nav-wrap { padding: 0.75rem 0; }
  .footer-wrap, .test-card-header, .test-nav, .cta-banner { flex-direction: column; align-items: flex-start; }
  .test-nav { width: 100%; gap: 0.6rem; }
  .test-nav .btn { flex: 1; min-width: 0; }

  /* Hero */
  .hero { padding: 2.5rem 0 2rem; }
  .hero h1 { font-size: clamp(1.8rem, 7vw, 2.6rem); }
  .hero-copy { font-size: 1rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; text-align: center; }
  .hero-trust { grid-template-columns: 1fr 1fr; gap: 0.6rem; }
  .hero-illustration { max-width: 100%; margin-bottom: 0; }

  /* Sections */
  .section { padding: 2.5rem 0; }
  .page-title { font-size: clamp(1.6rem, 6vw, 2.4rem); }
  .section-heading { margin-bottom: 1.4rem; }

  /* Panels & cards */
  .panel { padding: 1.1rem; }
  .feature-card { padding: 1.2rem; }
  .pricing-card { padding: 1.4rem; }

  /* Forms */
  .lead-form label { font-size: 0.92rem; }
  .lead-form .btn { width: 100%; }

  /* CTA banners */
  .cta-banner { padding: 2rem 1.4rem; gap: 1rem; }
  .cta-banner h2 { font-size: 1.4rem; }

  /* Footer */
  .footer-wrap { flex-direction: column; gap: 1.2rem; padding: 1.5rem 0; }
  .footer-nav { flex-wrap: wrap; gap: 0.75rem 1rem; }

  /* Contact channels */
  .contact-channels { flex-direction: column; }

  /* Tutor spotlight */
  .tutor-spotlight-photo { width: 60px; height: 60px; }

  /* Brand lockup */
  .brand-lockup { max-height: 40px; }
}