/* ============================================================
   Drevenue — Sales Training Academy
   Stylesheet
   ============================================================ */

:root {
  /* Brand blue (from the Drevenue logo) — variable names kept for compatibility */
  --teal: #2b50e0;
  --teal-dark: #1e3cb8;
  --teal-light: #5b78f0;
  --navy: #0e1733;
  --ink: #1f2a44;
  --muted: #5c668a;
  --accent: #f4b400;     /* warm gold for highlights */
  --accent-dark: #d99e00;
  --bg: #ffffff;
  --bg-soft: #f5f7ff;    /* light blue-tinted */
  --bg-mint: #eaeeff;    /* light blue */
  --line: #e6e9f7;
  --white: #ffffff;
  --shadow: 0 10px 30px rgba(20, 31, 80, 0.08);
  --shadow-lg: 0 20px 50px rgba(20, 31, 80, 0.14);
  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1160px;
  --font: "Plus Jakarta Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { line-height: 1.2; color: var(--navy); font-weight: 700; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.5rem); letter-spacing: -0.01em; }
h3 { font-size: 1.3rem; }

p { color: var(--muted); }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.section { padding: 84px 0; }
.section--soft { background: var(--bg-soft); }
.section--mint { background: var(--bg-mint); }
.section--navy { background: var(--navy); color: #cfe3e0; }
.section--navy h2, .section--navy h3 { color: #fff; }

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--teal);
  margin-bottom: 14px;
}
.section--navy .eyebrow { color: var(--accent); }

.section-head { max-width: 680px; margin: 0 auto 52px; text-align: center; }
.section-head p { margin-top: 14px; font-size: 1.05rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font); font-weight: 700; font-size: 0.98rem;
  padding: 14px 26px; border-radius: 999px; border: 2px solid transparent;
  cursor: pointer; transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--teal); color: #fff; box-shadow: 0 8px 20px rgba(15,118,110,.28); }
.btn--primary:hover { background: var(--teal-dark); }
.btn--accent { background: var(--accent); color: var(--navy); box-shadow: 0 8px 20px rgba(244,180,0,.3); }
.btn--accent:hover { background: var(--accent-dark); }
.btn--ghost { background: transparent; color: var(--teal); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--teal); }
.btn--white { background: #fff; color: var(--teal); }
.btn--lg { padding: 16px 32px; font-size: 1.05rem; }
.btn--block { width: 100%; justify-content: center; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.nav__brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.35rem; color: var(--navy); }
.nav__brand .logo-mark { width: 38px; height: 38px; display: block; }
.nav__brand b { color: var(--teal); }
.nav__links { display: flex; align-items: center; gap: 30px; list-style: none; }
.nav__links a { font-weight: 600; color: var(--ink); font-size: 0.97rem; transition: color .15s; }
.nav__links a:hover, .nav__links a.active { color: var(--teal); }
.nav__cta { display: flex; align-items: center; gap: 14px; }
.nav__toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
.nav__toggle span { display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0; transition: .25s; }

/* ---------- Hero ---------- */
.hero { background: linear-gradient(180deg, var(--bg-mint) 0%, #fff 100%); padding: 70px 0 90px; overflow: hidden; }
.hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 50px; align-items: center; }
.hero h1 span { color: var(--teal); }
.hero p.lead { font-size: 1.18rem; margin: 22px 0 30px; max-width: 520px; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__stats { display: flex; gap: 34px; margin-top: 40px; }
.hero__stat strong { display: block; font-size: 1.9rem; color: var(--navy); }
.hero__stat span { font-size: 0.9rem; color: var(--muted); }
.hero__art {
  position: relative; border-radius: 24px; min-height: 380px;
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
  box-shadow: var(--shadow-lg); overflow: hidden; display: grid; place-items: center;
}
.hero__art::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 20%, rgba(255,255,255,.18), transparent 45%),
              radial-gradient(circle at 80% 80%, rgba(244,180,0,.25), transparent 40%);
}
.hero__badge {
  position: absolute; z-index: 2; background: #fff; border-radius: 14px;
  padding: 14px 18px; box-shadow: var(--shadow); display: flex; gap: 12px; align-items: center;
}
.hero__badge .ic { width: 38px; height: 38px; border-radius: 10px; background: var(--bg-mint); display: grid; place-items: center; color: var(--teal); font-size: 1.2rem; }
.hero__badge strong { display: block; font-size: .95rem; color: var(--navy); }
.hero__badge span { font-size: .78rem; color: var(--muted); }
.hero__badge--1 { top: 30px; left: -18px; }
.hero__badge--2 { bottom: 36px; right: -14px; }
.hero__art-inner { position: relative; z-index: 1; color: #fff; text-align: center; padding: 30px; }
.hero__art-inner .big { font-size: 3.4rem; font-weight: 800; }
.hero__art-inner p { color: rgba(255,255,255,.85); margin-top: 6px; }

/* ---------- Feature cards ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }

.feature {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .2s, box-shadow .2s, border-color .2s;
}
.feature:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: transparent; }
.feature .ic {
  width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center;
  background: var(--bg-mint); color: var(--teal); font-size: 1.5rem; margin-bottom: 18px;
}
.feature h3 { font-size: 1.12rem; margin-bottom: 8px; }
.feature p { font-size: 0.95rem; }

/* ---------- Course cards ---------- */
.course-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column; transition: transform .2s, box-shadow .2s;
}
.course-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.course-card__top { padding: 26px 26px 0; }
.course-card__band { height: 8px; background: linear-gradient(90deg, var(--teal), var(--teal-light)); }
.course-card__band--2 { background: linear-gradient(90deg, #2563eb, #38bdf8); }
.course-card__band--3 { background: linear-gradient(90deg, #7c3aed, #c084fc); }
.course-card .level { font-size: .76rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--teal); }
.course-card h3 { margin: 10px 0 6px; font-size: 1.32rem; }
.course-card .sub { font-size: .95rem; color: var(--muted); min-height: 44px; }
.course-card__body { padding: 18px 26px 26px; display: flex; flex-direction: column; flex: 1; }
.course-card ul { list-style: none; margin: 14px 0 20px; display: grid; gap: 9px; }
.course-card ul li { font-size: .92rem; color: var(--ink); padding-left: 26px; position: relative; }
.course-card ul li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 800; }
.price { display: flex; align-items: baseline; gap: 10px; margin: 6px 0 4px; }
.price .now { font-size: 1.9rem; font-weight: 800; color: var(--navy); }
.price .was { font-size: 1.05rem; color: #9aa7ac; text-decoration: line-through; }
.price-note { font-size: .82rem; color: var(--accent-dark); font-weight: 600; margin-bottom: 18px; }
.course-card__cta { margin-top: auto; }
.tag-audience { font-size: .82rem; color: var(--muted); margin-bottom: 14px; }

/* ---------- Course detail ---------- */
.course-hero { background: var(--navy); color: #cfe3e0; padding: 64px 0; }
.course-hero .level { color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; }
.course-hero h1 { color: #fff; margin: 12px 0 14px; }
.course-hero p.lead { color: #b9cfcb; font-size: 1.15rem; max-width: 620px; }
.course-hero__meta { display: flex; gap: 30px; flex-wrap: wrap; margin-top: 28px; }
.course-hero__meta .m strong { display: block; color: #fff; font-size: 1.25rem; }
.course-hero__meta .m span { font-size: .85rem; color: #93aca7; }
.course-hero__price {
  background: #fff; color: var(--navy); border-radius: var(--radius); padding: 26px;
  box-shadow: var(--shadow-lg); position: sticky; top: 92px;
}
.course-hero__price .price .now { font-size: 2.3rem; }
.course-layout { display: grid; grid-template-columns: 1fr 340px; gap: 44px; align-items: start; }

.module {
  border: 1px solid var(--line); border-radius: var(--radius-sm); margin-bottom: 14px;
  background: #fff; overflow: hidden;
}
.module__head {
  display: flex; align-items: center; gap: 14px; padding: 18px 22px; cursor: pointer;
  font-weight: 700; color: var(--navy);
}
.module__head .num {
  width: 30px; height: 30px; border-radius: 8px; background: var(--bg-mint); color: var(--teal);
  display: grid; place-items: center; font-size: .9rem; flex-shrink: 0;
}
.module__head .chev { margin-left: auto; transition: transform .25s; color: var(--muted); }
.module.open .module__head .chev { transform: rotate(180deg); }
.module__body { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.module.open .module__body { max-height: 600px; }
.module__body ul { list-style: none; padding: 0 22px 20px 66px; display: grid; gap: 8px; }
.module__body li { position: relative; font-size: .95rem; color: var(--ink); padding-left: 20px; }
.module__body li::before { content: "•"; position: absolute; left: 0; color: var(--teal); font-weight: 800; }

.outcome-list { list-style: none; display: grid; gap: 12px; margin-top: 8px; }
.outcome-list li { padding-left: 32px; position: relative; }
.outcome-list li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 22px; height: 22px; background: var(--bg-mint); color: var(--teal); border-radius: 50%; display: grid; place-items: center; font-size: .8rem; font-weight: 800; }

/* ---------- Pricing / generic chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { background: var(--bg-mint); color: var(--teal-dark); font-size: .82rem; font-weight: 600; padding: 6px 13px; border-radius: 999px; }

/* ---------- CTA band ---------- */
.cta-band { background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%); color: #fff; border-radius: 24px; padding: 54px; text-align: center; box-shadow: var(--shadow-lg); }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.88); max-width: 560px; margin: 14px auto 28px; }

/* ---------- Forms ---------- */
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; font-size: .9rem; color: var(--navy); margin-bottom: 7px; }
.field input, .field select, .field textarea {
  width: 100%; font-family: var(--font); font-size: 1rem; padding: 13px 15px;
  border: 1.5px solid var(--line); border-radius: var(--radius-sm); background: #fbfdfd; color: var(--ink); transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(15,118,110,.12); background: #fff; }
.field textarea { resize: vertical; min-height: 96px; }
.field--req label::after { content: " *"; color: #e2574c; }
.form-note { font-size: .82rem; color: var(--muted); margin-top: 6px; }
.form-status { margin-top: 14px; padding: 12px 16px; border-radius: var(--radius-sm); font-size: .92rem; font-weight: 600; display: none; }
.form-status.show { display: block; }
.form-status.ok { background: #e7f7ef; color: #137a52; }
.form-status.err { background: #fdeceb; color: #c0392b; }
.form-status.loading { background: var(--bg-mint); color: var(--teal-dark); }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(12,31,44,.55); backdrop-filter: blur(3px);
  display: none; align-items: center; justify-content: center; z-index: 200; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: #fff; border-radius: var(--radius); width: 100%; max-width: 520px;
  max-height: 92vh; overflow-y: auto; box-shadow: var(--shadow-lg); animation: pop .2s ease;
}
@keyframes pop { from { transform: scale(.96); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.modal__head { padding: 26px 28px 0; position: relative; }
.modal__head h3 { font-size: 1.4rem; }
.modal__head p { font-size: .94rem; margin-top: 6px; }
.modal__close { position: absolute; top: 18px; right: 20px; background: var(--bg-soft); border: none; width: 34px; height: 34px; border-radius: 50%; font-size: 1.2rem; cursor: pointer; color: var(--muted); }
.modal__close:hover { background: var(--line); }
.modal__body { padding: 22px 28px 28px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); color: #9fb6b2; padding: 64px 0 28px; }
.footer__grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr 1fr 1fr; gap: 28px; }
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; }
.site-footer a { color: #9fb6b2; font-size: .94rem; display: block; padding: 5px 0; transition: color .15s; }
.site-footer a:hover { color: var(--accent); }
.footer__brand .nav__brand { color: #fff; margin-bottom: 14px; }
.footer__brand p { color: #88a09c; font-size: .94rem; max-width: 280px; }
.footer__bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 44px; padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: .86rem; color: #7d9591; }

/* ---------- Misc / About ---------- */
.lead-block p { font-size: 1.08rem; color: var(--muted); margin-bottom: 16px; }
.about-stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; margin-top: 40px; }
.about-stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; text-align: center; }
.about-stat strong { display: block; font-size: 2rem; color: var(--teal); }
.about-stat span { font-size: .9rem; color: var(--muted); }
.expertise { list-style: none; display: grid; gap: 12px; margin-top: 10px; }
.expertise li { padding-left: 32px; position: relative; font-weight: 500; color: var(--ink); }
.expertise li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 800; font-size: 1.1rem; }

.contact-info { display: grid; gap: 18px; }
.contact-info .ci { display: flex; gap: 14px; align-items: flex-start; }
.contact-info .ci .ic { width: 46px; height: 46px; border-radius: 12px; background: var(--bg-mint); color: var(--teal); display: grid; place-items: center; font-size: 1.2rem; flex-shrink: 0; }
.contact-info .ci strong { display: block; color: var(--navy); }
.contact-info .ci span { font-size: .94rem; color: var(--muted); }

.breadcrumb { font-size: .88rem; color: #93aca7; margin-bottom: 8px; }
.breadcrumb a:hover { color: #fff; }

/* ---------- Promo announcement bar ---------- */
.announce-bar { background: linear-gradient(90deg, var(--navy), var(--teal-dark)); color: #fff; padding: 11px 0; font-size: .92rem; }
.announce-bar__inner { display: flex; align-items: center; justify-content: center; gap: 18px; flex-wrap: wrap; text-align: center; position: relative; }
.announce-bar__inner span { font-weight: 500; }
.announce-bar__inner strong { color: var(--accent); }
.btn--sm { padding: 8px 16px; font-size: .86rem; }
.announce-bar__close { position: absolute; right: 0; top: 50%; transform: translateY(-50%); background: none; border: none; color: #cfe3e0; font-size: 1.3rem; cursor: pointer; line-height: 1; padding: 4px 8px; }
.announce-bar__close:hover { color: #fff; }

/* ---------- Free course styling ---------- */
.course-card__band--free { background: linear-gradient(90deg, #0f9d58, #34d399); }
.course-card--free .price .now { color: #0f9d58; }
.free-badge { display: inline-block; background: #e6f7ee; color: #0f9d58; font-size: .74rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; margin-bottom: 8px; }

/* ---------- WhatsApp community card ---------- */
.whatsapp-card {
  position: relative; overflow: hidden;
  max-width: 880px; margin: 0 auto;
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  border-radius: 20px; padding: 22px 36px;
  display: flex; align-items: center; gap: 22px; text-align: left;
  color: #fff; box-shadow: var(--shadow-lg);
}
.whatsapp-card::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 20% 15%, rgba(255,255,255,.16), transparent 45%),
              radial-gradient(circle at 85% 85%, rgba(255,255,255,.14), transparent 40%);
  pointer-events: none;
}
.whatsapp-card__icon {
  position: relative; z-index: 1;
  width: 46px; height: 46px; border-radius: 13px; background: rgba(255,255,255,.18);
  display: grid; place-items: center; font-size: 1.5rem; flex-shrink: 0;
}
.whatsapp-card__text { position: relative; z-index: 1; flex: 1; min-width: 0; }
.whatsapp-card h3 { color: #fff; font-size: 1.12rem; margin-bottom: 2px; }
.whatsapp-card p { color: rgba(255,255,255,.92); font-size: .88rem; margin: 0; }
.whatsapp-card .btn { position: relative; z-index: 1; flex-shrink: 0; white-space: nowrap; }
/* ---------- Upcoming batch dates ---------- */
.batch-dates {
  max-width: 900px; margin: 34px auto 0;
  display: flex; gap: 24px; justify-content: center; flex-wrap: wrap;
}
.batch-date {
  flex: 1; min-width: 300px;
  background: #fff; border: 1.5px solid var(--line); border-radius: 20px;
  padding: 36px 34px; text-align: left; box-shadow: var(--shadow);
}
.batch-date__tag {
  display: block; font-size: .76rem; font-weight: 800; text-transform: uppercase;
  letter-spacing: .08em; color: var(--muted); margin-bottom: 10px;
}
.batch-date__day { display: block; font-size: 1.2rem; font-weight: 800; color: var(--navy); margin-bottom: 16px; }
.batch-date__day--highlight { color: var(--accent-dark); font-size: 1.5rem; }
.batch-date__heading { font-size: 1.18rem; color: var(--navy); margin-bottom: 10px; }
.batch-date__note { font-size: .95rem; color: var(--muted); }
.batch-date__note strong { color: var(--ink); }

/* ---------- FAQ (reuses .module accordion) ---------- */
.faq .module__body p { padding: 0 22px 20px; font-size: .95rem; color: var(--ink); }
.faq-card {
  max-width: 760px; margin: 0 auto; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 8px 30px 34px; box-shadow: var(--shadow);
}
.faq-card .module { border: none; border-radius: 0; border-bottom: 1px solid var(--line); margin-bottom: 0; background: transparent; }
.faq-card .module:last-of-type { border-bottom: none; }
.faq-card .module__head { padding: 22px 4px; }
.faq-card .module__body p { padding: 0 4px 22px; font-size: .95rem; color: var(--ink); }
.faq-card__more { text-align: center; margin-top: 26px; padding-top: 8px; border-top: 1px solid var(--line); }

/* ---------- AI Advantage Bonus Module (course pages) ---------- */
.ai-bonus {
  position: relative; overflow: hidden;
  background: linear-gradient(145deg, #0e1733 0%, #1e3cb8 100%);
  border-radius: var(--radius); padding: 34px 32px; color: #fff; box-shadow: var(--shadow-lg);
}
.ai-bonus::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 88% 12%, rgba(91,120,240,.35), transparent 45%),
              radial-gradient(circle at 8% 92%, rgba(244,180,0,.2), transparent 42%);
  pointer-events: none;
}
.ai-bonus__head { position: relative; z-index: 1; display: flex; gap: 18px; align-items: flex-start; }
.ai-bonus__icon {
  width: 56px; height: 56px; border-radius: 16px; background: rgba(255,255,255,.14);
  display: grid; place-items: center; font-size: 1.6rem; flex-shrink: 0;
}
.ai-bonus__tag {
  display: inline-block; background: rgba(244,180,0,.2); color: var(--accent);
  font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
  padding: 4px 11px; border-radius: 999px; margin-bottom: 8px;
}
.ai-bonus h2 { color: #fff; font-size: 1.45rem; margin: 0; }
.ai-bonus__desc { position: relative; z-index: 1; color: #cfe3e0; margin: 20px 0 18px; font-size: .96rem; max-width: 640px; }
.ai-bonus__list { position: relative; z-index: 1; list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 11px 24px; }
.ai-bonus__list li { padding-left: 26px; position: relative; font-size: .93rem; color: #e7edff; }
.ai-bonus__list li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 800; }

/* ---------- Checkbox field (WhatsApp interest, etc.) ---------- */
.field--checkbox { display: flex; align-items: flex-start; gap: 10px; }
.field--checkbox input[type="checkbox"] { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--teal); flex-shrink: 0; }
.field--checkbox label { font-weight: 500; font-size: .92rem; color: var(--ink); margin-bottom: 0; }

/* ---------- File upload field ---------- */
.field input[type="file"] { width: 100%; padding: 10px 14px; border: 1px dashed var(--line); border-radius: var(--radius-sm); background: var(--bg-soft); font-size: .88rem; font-family: var(--font); }
.field-hint { font-size: .8rem; color: var(--muted); margin-top: 6px; }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .hero__grid, .grid-2, .course-layout { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .course-hero__price { position: static; margin-top: 28px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .ai-bonus__list { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav__links, .nav__cta .btn { display: none; }
  .nav__toggle { display: block; }
  .nav.open .nav__links {
    display: flex; position: absolute; top: 74px; left: 0; right: 0; flex-direction: column;
    background: #fff; padding: 18px 24px; gap: 6px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
  }
  .nav.open .nav__links a { padding: 10px 0; width: 100%; }
  .section { padding: 60px 0; }
  .grid-4 { grid-template-columns: 1fr; }
  .cta-band { padding: 38px 24px; }
  .hero__stats { gap: 22px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .announce-bar__close { position: static; transform: none; margin-top: 4px; }
  .whatsapp-card { flex-direction: column; text-align: center; padding: 26px 22px; border-radius: 18px; }
  .whatsapp-card p { font-size: .9rem; }
  .batch-dates { flex-direction: column; }
  .batch-date { min-width: 0; }
  .faq-card { padding: 6px 18px 26px; }
  .faq-card__more { margin-top: 20px; }
  .ai-bonus { padding: 26px 22px; }
  .ai-bonus__head { flex-direction: column; align-items: flex-start; }
}