:root {
  --ink: #102a2b;
  --muted: #587173;
  --paper: #f7f4ec;
  --orange: #ff5c35;
  --orange-dark: #df3d1a;
  --mint: #b8f0d0;
  --line: rgba(16, 42, 43, .13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Arial, Helvetica, sans-serif; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
img { display: block; max-width: 100%; }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; padding: 12px 16px; border-radius: 10px; background: white; color: var(--ink); font-weight: 800; box-shadow: 0 8px 24px rgba(16,42,43,.18); }
.skip-link:focus { top: 16px; }

.site-header { height: 82px; padding: 0 clamp(22px, 5vw, 80px); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border-bottom: 1px solid var(--line); position: absolute; inset: 0 0 auto; z-index: 20; }
.brand { display: flex; align-items: center; gap: 11px; width: max-content; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; background: var(--orange); color: white; font-weight: 900; border-radius: 12px 4px 12px 4px; transform: rotate(-4deg); font-size: 22px; }
.brand-copy { display: grid; line-height: 1.05; }
.brand-copy strong { font-size: 16px; letter-spacing: -.02em; }
.brand-copy small { font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-top: 4px; }
.nav-links { display: flex; gap: 24px; align-items: center; font-size: 13px; font-weight: 700; }
.nav-links a { position: relative; }
.nav-links a::after { content: ""; position: absolute; height: 2px; background: var(--orange); left: 0; right: 100%; bottom: -8px; transition: right .2s; }
.nav-links a:hover::after { right: 0; }
.header-cta { justify-self: end; background: var(--ink); color: white; border-radius: 999px; padding: 12px 18px; font-size: 13px; font-weight: 800; }
.header-cta span { color: var(--mint); margin-left: 7px; }
.menu-button { display: none; }

.hero { position: relative; min-height: 780px; padding: 150px clamp(22px, 6vw, 96px) 70px; overflow: hidden; display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(42px, 7vw, 110px); align-items: center; }
.hero::before { content: ""; position: absolute; width: 560px; height: 560px; border-radius: 50%; background: var(--mint); right: -220px; top: -180px; opacity: .5; }
.hero-grid { position: absolute; inset: 82px 50% 0 0; opacity: .2; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 42px 42px; mask-image: linear-gradient(to right, black, transparent); }
.hero-copy { position: relative; z-index: 2; max-width: 720px; }
.eyebrow { display: flex; align-items: center; gap: 9px; font-size: 12px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; color: var(--muted); margin-bottom: 25px; }
.eyebrow span { width: 28px; height: 8px; background: var(--orange); border-radius: 999px; }
.hero h1 { margin: 0; font-size: clamp(52px, 6.6vw, 98px); letter-spacing: -.065em; line-height: .92; font-weight: 900; }
.hero h1 em { color: var(--orange); font-style: normal; }
.hero-lede { max-width: 610px; font-size: clamp(17px, 1.4vw, 21px); line-height: 1.6; color: var(--muted); margin: 30px 0 34px; }
.hero-actions { display: flex; align-items: center; gap: 13px; flex-wrap: wrap; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; padding: 0 22px; border-radius: 999px; font-size: 14px; font-weight: 800; transition: transform .2s, box-shadow .2s; }
.button:hover { transform: translateY(-2px); }
.button.primary { background: var(--orange); color: white; box-shadow: 0 12px 32px rgba(255,92,53,.25); }
.button.primary span { margin-left: 18px; font-size: 19px; }
.button.secondary { border: 1px solid var(--line); background: rgba(255,255,255,.45); }
.hero-proof { display: flex; margin-top: 46px; padding-top: 25px; border-top: 1px solid var(--line); max-width: 650px; }
.hero-proof > div { display: grid; padding-right: clamp(20px, 4vw, 52px); margin-right: clamp(20px, 4vw, 52px); border-right: 1px solid var(--line); }
.hero-proof > div:last-child { border: 0; margin: 0; padding: 0; }
.hero-proof strong { font-size: 26px; letter-spacing: -.05em; }
.hero-proof span { color: var(--muted); font-size: 11px; margin-top: 4px; }

.hero-visual { position: relative; z-index: 2; height: 570px; }
.portrait-card { position: absolute; inset: 10px 25px 25px 20px; border-radius: 190px 190px 26px 26px; overflow: hidden; box-shadow: 0 30px 80px rgba(16,42,43,.2); background: #dbe7df; }
.portrait-card img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 34%; transform: scale(1.03); }
.portrait-card::after { content: ""; position: absolute; inset: 55% 0 0; background: linear-gradient(transparent, rgba(16,42,43,.86)); }
.portrait-overlay { position: absolute; z-index: 2; left: 30px; bottom: 26px; color: white; display: grid; }
.portrait-overlay span { font-size: 10px; letter-spacing: .17em; color: var(--mint); font-weight: 800; }
.portrait-overlay strong { font-size: 28px; margin-top: 4px; }
.score-card { position: absolute; z-index: 3; left: -42px; top: 70px; background: white; border: 1px solid var(--line); border-radius: 18px; padding: 17px 20px; box-shadow: 0 18px 50px rgba(16,42,43,.14); display: grid; transform: rotate(-3deg); }
.score-card span, .score-card small { font-size: 10px; color: var(--muted); }
.score-card strong { font-size: 29px; letter-spacing: -.05em; margin: 4px 0; }
.score-card i { color: var(--orange); font-style: normal; }
.rating-pill { position: absolute; z-index: 4; right: 0; bottom: 50px; background: var(--ink); color: white; padding: 15px 18px; border-radius: 15px; display: grid; transform: rotate(3deg); }
.rating-pill strong { color: #ffd45b; font-size: 16px; }
.rating-pill span { font-size: 10px; opacity: .72; margin-top: 3px; }

@media (max-width: 900px) {
  .site-header { grid-template-columns: 1fr auto; }
  .header-cta { display: none; }
  .menu-button { display: grid; gap: 5px; border: 0; background: transparent; padding: 8px; }
  .menu-button span { width: 24px; height: 2px; background: var(--ink); }
  .nav-links { position: absolute; top: 72px; left: 18px; right: 18px; background: white; padding: 22px; border-radius: 16px; box-shadow: 0 18px 45px rgba(16,42,43,.16); display: none; flex-direction: column; align-items: flex-start; }
  .nav-links.open { display: flex; }
  .hero { grid-template-columns: 1fr; padding-top: 125px; }
  .hero-visual { height: 550px; max-width: 570px; width: 100%; margin: 0 auto; }
}

@media (max-width: 560px) {
  .site-header { height: 72px; }
  .brand-copy small { display: none; }
  .hero { min-height: auto; padding-bottom: 42px; }
  .hero h1 { font-size: clamp(46px, 15vw, 67px); }
  .hero-proof { justify-content: space-between; }
  .hero-proof > div { margin-right: 12px; padding-right: 12px; }
  .hero-proof strong { font-size: 22px; }
  .hero-visual { height: 440px; }
  .portrait-card { inset: 0 8px; border-radius: 130px 130px 22px 22px; }
  .score-card { left: -5px; top: 42px; }
  .rating-pill { right: -5px; bottom: 25px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }

/* Full site */
.subject-ribbon { min-height: 70px; background: var(--ink); color: white; display: flex; align-items: center; justify-content: center; gap: clamp(14px, 2.8vw, 42px); padding: 18px 24px; overflow: hidden; font-size: clamp(12px, 1.2vw, 16px); font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.subject-ribbon i { color: var(--orange); font-style: normal; }
.section { padding: clamp(82px, 9vw, 140px) clamp(22px, 6vw, 96px); }
.section-heading { margin-bottom: 52px; }
.section-heading h2, .mentor-copy h2, .reviews-intro h2, .demo-copy h2, .contact-card h2 { margin: 14px 0 0; font-size: clamp(41px, 5.1vw, 76px); line-height: .98; letter-spacing: -.06em; font-weight: 900; }
.section-heading p { color: var(--muted); line-height: 1.7; font-size: 17px; }
.split-heading { display: grid; grid-template-columns: 1.15fr .65fr; gap: 80px; align-items: end; }
.split-heading p { max-width: 500px; margin: 0 0 7px; }
.kicker { display: block; font-size: 11px; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; color: var(--orange); }
.kicker.light { color: var(--mint); }
.centered { text-align: center; max-width: 800px; margin-left: auto; margin-right: auto; }
.centered p { max-width: 610px; margin: 20px auto 0; }

.courses-section { background: #fffdf8; }
.course-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 30px; overflow: hidden; }
.course-card { padding: clamp(25px, 3vw, 44px); min-height: 365px; position: relative; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; transition: background .24s, color .24s; }
.course-card:nth-child(3n) { border-right: 0; }
.course-card:nth-last-child(-n + 3) { border-bottom: 0; }
.course-card:hover { background: var(--orange); color: white; }
.course-code { font-size: 11px; font-weight: 800; color: var(--muted); }
.course-symbol { position: absolute; top: 30px; right: 30px; width: 56px; height: 56px; display: grid; place-items: center; background: var(--paper); border-radius: 50%; color: var(--ink); font-size: 22px; font-weight: 900; }
.course-card h3 { font-size: clamp(22px, 2vw, 30px); line-height: 1.08; letter-spacing: -.04em; margin: auto 0 14px; max-width: 280px; }
.course-card p { font-size: 14px; line-height: 1.65; color: var(--muted); margin: 0 0 24px; max-width: 370px; }
.course-meta { font-size: 10px; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; border-top: 1px solid var(--line); padding-top: 16px; }
.course-card:hover p, .course-card:hover .course-code { color: rgba(255,255,255,.8); }
.course-card:hover .course-meta { border-color: rgba(255,255,255,.3); }

.subjects-section { background: var(--paper); }
.subject-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.subject-card { min-height: 250px; padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.52); position: relative; display: flex; flex-direction: column; transition: transform .22s, background .22s, box-shadow .22s; }
.subject-card:hover { transform: translateY(-5px); background: white; box-shadow: 0 18px 45px rgba(16,42,43,.08); }
.subject-number { color: var(--muted); font-size: 10px; font-weight: 900; letter-spacing: .1em; }
.subject-symbol { width: 66px; height: 66px; margin: 25px 0 auto; border-radius: 18px; display: grid; place-items: center; background: var(--ink); color: var(--mint); font-size: 20px; letter-spacing: -.04em; }
.subject-card h3 { margin: 24px 0 9px; font-size: 23px; letter-spacing: -.04em; }
.subject-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }

.mentor-section { display: grid; grid-template-columns: .92fr 1.08fr; background: var(--ink); color: white; min-height: 760px; }
.mentor-photo { position: relative; min-height: 700px; overflow: hidden; }
.mentor-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 35%; filter: saturate(.8); }
.mentor-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(16,42,43,.7), transparent 45%); }
.photo-note { position: absolute; z-index: 2; left: 40px; right: 40px; bottom: 36px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.35); display: flex; align-items: baseline; gap: 16px; }
.photo-note strong { font-size: 30px; letter-spacing: -.04em; }
.photo-note span { font-size: 12px; max-width: 180px; opacity: .72; }
.mentor-copy { padding: clamp(70px, 8vw, 125px) clamp(32px, 7vw, 105px); display: flex; flex-direction: column; justify-content: center; }
.mentor-copy h2 { font-size: clamp(40px, 4.3vw, 67px); }
.mentor-copy > p { color: rgba(255,255,255,.68); line-height: 1.75; font-size: 16px; max-width: 680px; margin: 30px 0; }
.mentor-points { display: grid; grid-template-columns: 1fr 1fr; gap: 13px 25px; margin-bottom: 36px; }
.mentor-points span { font-size: 13px; font-weight: 700; }
.mentor-points i { color: var(--mint); font-style: normal; margin-right: 7px; }
.text-link { width: max-content; font-size: 13px; font-weight: 900; border-bottom: 1px solid currentColor; padding-bottom: 8px; }
.text-link span { color: var(--orange); margin-left: 14px; }

.method-section { background: var(--paper); }
.reason-list { border-top: 1px solid var(--line); }
.reason-row { min-height: 122px; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 70px minmax(210px, .8fr) 1.2fr 40px; gap: 30px; align-items: center; transition: padding .2s, background .2s; }
.reason-row:hover { padding: 0 18px; background: rgba(255,255,255,.55); }
.reason-row > span { font-size: 11px; font-weight: 900; color: var(--orange); }
.reason-row h3 { font-size: 22px; letter-spacing: -.03em; margin: 0; }
.reason-row p { color: var(--muted); font-size: 14px; line-height: 1.6; margin: 0; max-width: 600px; }
.reason-row > i { font-style: normal; font-size: 22px; color: var(--orange); }

.reviews-section { background: var(--orange); color: white; padding: clamp(82px, 9vw, 140px) clamp(22px, 6vw, 96px); display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(55px, 9vw, 140px); }
.reviews-intro { position: sticky; top: 80px; align-self: start; }
.reviews-intro h2 { font-size: clamp(42px, 4.7vw, 70px); }
.rating-lockup { display: flex; align-items: center; gap: 18px; margin: 34px 0; }
.rating-lockup > strong { font-size: 55px; letter-spacing: -.06em; }
.rating-lockup > span { display: grid; color: #ffe066; letter-spacing: 2px; }
.rating-lockup small { color: rgba(255,255,255,.7); font-size: 10px; letter-spacing: .05em; text-transform: uppercase; margin-top: 5px; }
.light-link { color: white; }
.light-link span { color: var(--mint); }
.review-stack { display: grid; gap: 18px; }
.review-card { background: #fffdf8; color: var(--ink); border-radius: 22px; padding: clamp(28px, 4vw, 52px); position: relative; box-shadow: 0 15px 50px rgba(132,37,14,.15); }
.quote-mark { color: var(--orange); font-size: 72px; line-height: .7; font-family: Georgia, serif; }
.review-card > p { font-size: clamp(20px, 2vw, 29px); letter-spacing: -.03em; line-height: 1.45; max-width: 720px; margin: 18px 0 35px; }
.review-card footer { display: flex; align-items: center; gap: 11px; padding-top: 18px; border-top: 1px solid var(--line); }
.avatar { width: 38px; height: 38px; border-radius: 50%; background: var(--ink); color: var(--mint); display: grid; place-items: center; font-weight: 900; }
.review-card footer > span:nth-child(2) { display: grid; }
.review-card footer strong { font-size: 13px; }
.review-card footer small { font-size: 10px; color: var(--muted); margin-top: 3px; }
.review-card footer i { margin-left: auto; color: #f6b500; font-style: normal; letter-spacing: 2px; font-size: 11px; }
.review-index { position: absolute; right: 26px; top: 24px; color: var(--muted); font-size: 10px; font-weight: 900; }

.demo-section { padding: clamp(82px, 9vw, 140px) clamp(22px, 8vw, 130px); display: grid; grid-template-columns: 1fr; background: var(--mint); text-align: center; }
.demo-copy { max-width: 900px; margin: 0 auto; }
.demo-copy h2 { max-width: 700px; }
.demo-copy > p { color: var(--muted); font-size: 17px; line-height: 1.7; max-width: 680px; margin: 28px auto 36px; }
.demo-copy h2 { margin-left: auto; margin-right: auto; }
.demo-actions { display: flex; align-items: center; justify-content: center; gap: 13px; flex-wrap: wrap; }

.contact-section { background: #fffdf8; display: grid; grid-template-columns: 1fr .95fr; gap: 25px; }
.contact-card { border: 1px solid var(--line); border-radius: 28px; padding: clamp(30px, 5vw, 68px); }
.contact-card h2 { font-size: clamp(39px, 4.4vw, 66px); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px 45px; margin: 52px 0 40px; padding-top: 30px; border-top: 1px solid var(--line); }
.contact-grid > div > span { display: block; font-size: 10px; text-transform: uppercase; letter-spacing: .12em; font-weight: 900; color: var(--orange); margin-bottom: 9px; }
.contact-grid p { font-size: 13px; line-height: 1.65; color: var(--muted); margin: 0; }
.contact-grid a:hover { color: var(--orange); }
.contact-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.location-card { border-radius: 28px; min-height: 580px; padding: clamp(36px, 6vw, 80px); background: var(--ink); color: white; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; overflow: hidden; position: relative; }
.location-card::before { content: ""; position: absolute; width: 380px; height: 380px; border-radius: 50%; right: -150px; top: -140px; background: var(--mint); opacity: .16; }
.location-card > span { color: var(--mint); text-transform: uppercase; letter-spacing: .14em; font-size: 10px; font-weight: 900; margin-bottom: 28px; }
.location-card strong { font-size: clamp(50px, 6vw, 86px); letter-spacing: -.06em; line-height: .95; }
.location-card i { color: var(--orange); font-size: 35px; font-style: normal; margin: 7px 0; }
.location-card p { color: rgba(255,255,255,.62); margin: 30px 0 0; }

.site-footer { background: var(--ink); color: white; padding: 58px clamp(22px, 6vw, 96px) 35px; display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
.footer-brand .brand-copy small { color: rgba(255,255,255,.5); }
.site-footer > p { color: rgba(255,255,255,.55); font-size: 13px; line-height: 1.7; max-width: 430px; justify-self: end; margin: 0; text-align: right; }
.site-footer nav { display: flex; gap: 24px; font-size: 12px; font-weight: 800; }
.site-footer nav a:hover { color: var(--mint); }
.site-footer > small { justify-self: end; color: rgba(255,255,255,.42); font-size: 10px; }
.floating-whatsapp { position: fixed; z-index: 50; right: 18px; bottom: 18px; height: 52px; display: flex; align-items: center; gap: 12px; background: #17a966; color: white; border-radius: 999px; padding: 0 10px 0 18px; box-shadow: 0 12px 35px rgba(16,42,43,.25); font-size: 12px; font-weight: 900; }
.floating-whatsapp strong { width: 34px; height: 34px; background: white; color: #17a966; border-radius: 50%; display: grid; place-items: center; font-size: 16px; }

@media (max-width: 980px) {
  .course-grid { grid-template-columns: repeat(2, 1fr); }
  .subject-grid { grid-template-columns: repeat(2, 1fr); }
  .course-card:nth-child(3n) { border-right: 1px solid var(--line); }
  .course-card:nth-child(2n) { border-right: 0; }
  .course-card:nth-last-child(-n + 3) { border-bottom: 1px solid var(--line); }
  .course-card:nth-last-child(-n + 2) { border-bottom: 0; }
  .mentor-section, .reviews-section, .demo-section, .contact-section { grid-template-columns: 1fr; }
  .mentor-photo { min-height: 620px; }
  .reviews-intro { position: static; }
  .demo-section { gap: 55px; }
  .location-card { min-height: 450px; }
}

@media (max-width: 700px) {
  .subject-ribbon { justify-content: flex-start; overflow-x: auto; }
  .subject-ribbon > * { flex: 0 0 auto; }
  .split-heading { grid-template-columns: 1fr; gap: 20px; }
  .section-heading { margin-bottom: 35px; }
  .course-grid { grid-template-columns: 1fr; border-radius: 22px; }
  .subject-grid { grid-template-columns: 1fr; }
  .course-card { min-height: 310px; border-right: 0 !important; border-bottom: 1px solid var(--line) !important; }
  .course-card:last-child { border-bottom: 0 !important; }
  .mentor-photo { min-height: 490px; }
  .mentor-points { grid-template-columns: 1fr; }
  .reason-row { grid-template-columns: 36px 1fr 28px; gap: 14px; padding: 22px 0; }
  .reason-row h3 { font-size: 19px; }
  .reason-row p { grid-column: 2 / 4; }
  .reason-row:hover { padding: 22px 12px; }
  .reviews-section { gap: 45px; }
  .review-card footer i { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .site-footer { grid-template-columns: 1fr; }
  .site-footer > p, .site-footer > small { justify-self: start; text-align: left; }
  .site-footer nav { flex-wrap: wrap; }
}

@media (max-width: 430px) {
  .floating-whatsapp span { display: none; }
  .floating-whatsapp { padding: 8px; }
  .mentor-copy { padding-left: 22px; padding-right: 22px; }
  .photo-note { left: 22px; right: 22px; }
  .demo-form { border-radius: 18px; }
}