:root {
  --navy: #06274d;
  --navy-2: #0a3768;
  --blue: #0b57cf;
  --sky: #e8f2ff;
  --ink: #10233d;
  --muted: #5e6d80;
  --line: #dbe5f0;
  --paper: #f7f9fc;
  --white: #fff;
  --green: #119a53;
  --green-dark: #08723c;
  --green-soft: #e9f8ef;
  --shadow: 0 24px 70px rgba(6, 39, 77, .14);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 16px; line-height: 1.6; padding-bottom: 88px; overflow-x: hidden; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button, select { font: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; top: -60px; left: 20px; padding: 12px 18px; background: var(--white); color: var(--navy); border-radius: 8px; transition: top .2s; }
.skip-link:focus { top: 20px; }

.announcement { min-height: 38px; padding: 8px 20px; display: flex; justify-content: center; align-items: center; gap: 9px; background: var(--navy); color: #fff; text-align: center; font-size: .86rem; font-weight: 700; letter-spacing: .02em; }
.announcement-dot { width: 7px; height: 7px; border-radius: 50%; background: #56e68c; box-shadow: 0 0 0 5px rgba(86,230,140,.14); }
.site-header { position: sticky; z-index: 100; top: 0; min-height: 78px; padding: 12px clamp(18px, 4vw, 68px); display: flex; align-items: center; justify-content: space-between; gap: 28px; background: rgba(255,255,255,.92); border-bottom: 1px solid rgba(219,229,240,.8); backdrop-filter: blur(18px); }
.brand { display: flex; align-items: center; gap: 13px; text-decoration: none; flex-shrink: 0; }
.brand-ic { width: 45px; height: 45px; object-fit: contain; }
.brand-divider { width: 1px; height: 28px; background: var(--line); }
.brand-oxford { width: 144px; height: 34px; object-fit: contain; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: clamp(17px, 2vw, 34px); margin-left: auto; }
.desktop-nav a { color: var(--ink); text-decoration: none; font-size: .92rem; font-weight: 700; }
.desktop-nav a:hover { color: var(--blue); }
.language-control { display: flex; align-items: center; gap: 7px; border: 1px solid var(--line); border-radius: 999px; padding: 7px 11px; background: #fff; }
.language-control select { max-width: 132px; border: 0; background: transparent; color: var(--ink); font-weight: 700; outline: none; cursor: pointer; }

.hero { min-height: 590px; position: relative; display: grid; grid-template-columns: minmax(0,1.06fr) minmax(430px,.94fr); align-items: center; gap: 42px; padding: 66px clamp(22px, 6vw, 104px) 72px; background: linear-gradient(145deg, #f8fbff 0%, #eef6ff 52%, #fff 100%); overflow: hidden; }
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 120px; background: linear-gradient(transparent, rgba(255,255,255,.8)); pointer-events: none; }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(5px); pointer-events: none; }
.hero-glow-one { width: 460px; height: 460px; right: -120px; top: -140px; background: rgba(43,126,255,.10); animation: glowDrift 9s ease-in-out infinite alternate; }
.hero-glow-two { width: 320px; height: 320px; left: 35%; bottom: -210px; background: rgba(36,190,110,.10); animation: glowDrift 11s ease-in-out -3s infinite alternate-reverse; }
.hero-copy, .hero-visual { position: relative; z-index: 2; }
.eyebrow { margin: 0 0 14px; color: var(--blue); font-size: .76rem; font-weight: 850; letter-spacing: .17em; text-transform: uppercase; }
.eyebrow.dark { color: #6ab7ff; }
.eyebrow.light { color: #8bd4ff; }
h1, h2, h3 { margin-top: 0; color: var(--ink); letter-spacing: -.035em; line-height: 1.08; }
h1 { max-width: 720px; margin-bottom: 20px; font-size: clamp(2.8rem, 5.1vw, 5.25rem); }
h2 { font-size: clamp(2rem, 3.6vw, 3.7rem); }
h3 { font-size: 1.35rem; }
.hero-lede { max-width: 640px; margin: 0 0 26px; color: var(--muted); font-size: clamp(1.03rem, 1.55vw, 1.2rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { min-height: 50px; position: relative; isolation: isolate; overflow: hidden; display: inline-flex; align-items: center; justify-content: center; padding: 12px 22px; border: 0; border-radius: 10px; text-decoration: none; font-weight: 800; cursor: pointer; transition: transform .22s ease, box-shadow .22s ease, background .22s ease; }
.button::after { content: ""; position: absolute; z-index: -1; inset: -60% auto -60% -45%; width: 28%; background: rgba(255,255,255,.28); transform: rotate(18deg); transition: left .55s ease; }
.button:hover::after { left: 120%; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--navy); color: #fff; box-shadow: 0 12px 28px rgba(6,39,77,.22); }
.button-ghost { color: var(--navy); background: #fff; border: 1px solid var(--line); }
.button-light { background: #fff; color: var(--navy); box-shadow: 0 12px 28px rgba(0,0,0,.15); }
.button-buy { width: 100%; color: #fff; background: linear-gradient(135deg, #19b863, #087b42); box-shadow: 0 14px 30px rgba(17,154,83,.25); }
.trust-row { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 28px; }
.trust-row > span { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: .9rem; font-weight: 700; }
.trust-row strong { display: inline-grid; place-items: center; min-width: 28px; height: 28px; padding: 0 7px; border-radius: 999px; color: var(--green-dark); background: var(--green-soft); }

.hero-visual { min-height: 430px; display: grid; place-items: center; }
.book-stage { position: relative; width: min(580px, 46vw); height: 430px; perspective: 1200px; }
.book { position: absolute; bottom: 42px; width: 205px; border-radius: 5px 12px 12px 5px; box-shadow: 0 32px 55px rgba(6,39,77,.25); transform-origin: bottom center; transition: transform .35s ease; }
.book::after { content: ""; position: absolute; top: 4px; right: -7px; bottom: 4px; width: 8px; border-radius: 0 6px 6px 0; background: linear-gradient(90deg,#d9e1e8,#fff); }
.book img { width: 100%; aspect-ratio: 720/1040; object-fit: cover; border-radius: 4px 9px 9px 4px; animation: bookFloat 5s ease-in-out infinite; }
.book-centre img { animation-delay: -.9s; }
.book-right img { animation-delay: -1.8s; }
.book span { position: absolute; left: 50%; bottom: -38px; transform: translateX(-50%); padding: 7px 13px; white-space: nowrap; border-radius: 999px; background: #fff; color: var(--navy); box-shadow: 0 8px 25px rgba(6,39,77,.15); font-weight: 850; font-size: .78rem; }
.book-left { left: 0; transform: rotate(-10deg) translateY(35px); }
.book-centre { z-index: 3; left: 50%; transform: translateX(-50%) scale(1.12); }
.book-right { right: 0; transform: rotate(10deg) translateY(35px); }
.book-stage:hover .book-left { transform: rotate(-13deg) translate(-8px,24px); }
.book-stage:hover .book-centre { transform: translateX(-50%) translateY(-10px) scale(1.14); }
.book-stage:hover .book-right { transform: rotate(13deg) translate(8px,24px); }
.access-orbit { position: absolute; z-index: 6; top: 8px; right: 28px; width: 90px; height: 90px; display: grid; place-content: center; padding: 8px; text-align: center; border-radius: 50%; color: #fff; background: linear-gradient(145deg,#0a62d4,#06274d); border: 7px solid rgba(255,255,255,.92); box-shadow: 0 14px 35px rgba(6,39,77,.24); animation: orbitPulse 3.8s ease-in-out infinite; }
.access-orbit span { font-size: 2.1rem; font-weight: 900; line-height: .9; }
.access-orbit small { font-size: .68rem; font-weight: 800; line-height: 1.05; }

.price-strip { margin: 54px clamp(18px, 5vw, 80px) 0; position: relative; z-index: 10; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 32px; padding: 38px clamp(24px, 4vw, 54px); color: #fff; background: linear-gradient(120deg,#06274d,#0b4a83); border: 1px solid rgba(114,188,255,.22); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.price-strip::before { content: ""; position: absolute; width: 280px; height: 280px; right: -150px; bottom: -180px; border-radius: 50%; background: rgba(76,190,255,.13); }
.price-strip h2 { margin-bottom: 10px; color: #fff; font-size: clamp(1.8rem,3vw,3rem); }
.price-strip p { max-width: 760px; margin: 0; color: #d5e8fb; }
.price-comparison { display: grid; grid-template-columns: auto auto auto; align-items: center; gap: 18px; position: relative; padding-top: 22px; }
.price-old, .price-new { display: flex; flex-direction: column; min-width: 145px; }
.price-old span, .price-new span { color: #b7d1ea; font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.price-old strong { color: #a8b9ca; font-size: 2rem; text-decoration: line-through; text-decoration-thickness: 2px; }
.price-new strong { color: #fff; font-size: 3.15rem; line-height: 1; }
.price-new small { margin-top: 8px; color: #bfe9cf; font-size: .74rem; font-weight: 800; }
.price-arrow { color: #77e9a4; font-size: 2rem; }
.save-pill { position: absolute; right: 0; top: -26px; padding: 6px 12px; border-radius: 999px; background: #55e892; color: #063a22; box-shadow: 0 8px 22px rgba(25,211,107,.26); font-size: .72rem; font-weight: 900; }
.price-note { grid-column: 1/-1; font-size: .75rem; opacity: .78; }

.section { padding: 84px clamp(20px, 6vw, 104px); }
.section-heading { max-width: 850px; margin: 0 auto 42px; text-align: center; }
.section-heading.narrow { max-width: 920px; }
.section-heading h2 { margin-bottom: 18px; }
.section-heading p:last-child { color: var(--muted); font-size: 1.1rem; }
.intro-section { position: relative; margin: 70px clamp(14px, 4vw, 68px) 0; padding: 72px clamp(20px, 5vw, 78px); border: 1px solid #dce9f7; border-radius: 30px; background: radial-gradient(circle at 10% 10%,rgba(25,120,230,.11),transparent 34%), linear-gradient(145deg,#f9fcff,#edf6ff); overflow: hidden; }
.intro-section::after { content: "IC"; position: absolute; right: -16px; top: -70px; color: rgba(15,80,153,.045); font-size: 18rem; font-weight: 950; line-height: 1; pointer-events: none; }
.intro-section .section-heading { position: relative; z-index: 2; }
.course-flow { position: relative; z-index: 2; max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.course-flow > div { position: relative; min-height: 190px; padding: 32px; display: flex; flex-direction: column; border: 1px solid rgba(255,255,255,.9); border-radius: 18px; background: rgba(255,255,255,.72); box-shadow: 0 18px 45px rgba(6,39,77,.07); backdrop-filter: blur(12px); transition: transform .25s ease, box-shadow .25s ease; }
.course-flow > div:hover { transform: translateY(-5px); box-shadow: 0 24px 52px rgba(6,39,77,.12); }
.course-flow span { width: 40px; height: 40px; margin-bottom: 23px; display: grid; place-items: center; color: #fff; background: linear-gradient(145deg,var(--blue),var(--navy)); border-radius: 12px; font-size: .75rem; font-weight: 900; letter-spacing: .08em; box-shadow: 0 8px 20px rgba(11,87,207,.22); }
.course-flow strong { margin-bottom: 10px; font-size: 1.16rem; }
.course-flow small { color: var(--muted); font-size: .95rem; }
.course-flow > div:not(:last-child)::after { content: ""; position: absolute; top: 50%; right: -20px; z-index: 3; width: 24px; height: 2px; background: linear-gradient(90deg,#79b8ff,#64d692); }

.benefits-section { margin: 70px 0 0; background: radial-gradient(circle at 88% 10%,rgba(42,149,255,.13),transparent 28%), linear-gradient(180deg,#f7faff,#eef4fa); }
.benefit-grid { max-width: 1240px; margin: 0 auto; display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.benefit-card { min-height: 174px; position: relative; padding: 25px; overflow: hidden; border-radius: 20px; background: rgba(255,255,255,.86); border: 1px solid rgba(219,229,240,.9); box-shadow: 0 12px 32px rgba(6,39,77,.06); transition: transform .26s ease, box-shadow .26s ease, border-color .26s ease; }
.benefit-card:hover { transform: translateY(-6px); border-color: #b9d7f7; box-shadow: 0 24px 48px rgba(6,39,77,.12); }
.benefit-card:nth-child(1), .benefit-card:nth-child(7) { grid-column: span 1; }
.benefit-card:nth-child(1) { background: linear-gradient(145deg,#0a4d8b,#06274d); }
.benefit-card:nth-child(5) { background: linear-gradient(145deg,#effbf4,#dff5e8); border-color: #c4ead4; }
.benefit-card:nth-child(7) { background: linear-gradient(145deg,#edf6ff,#ddebfb); }
.benefit-card:nth-child(1) h3, .benefit-card:nth-child(1) p { color: #fff; }
.benefit-card:nth-child(1) p { opacity: .78; }
.tick { width: 32px; height: 32px; margin-bottom: 22px; display: grid; place-items: center; border-radius: 10px; color: #fff; background: linear-gradient(145deg,#22c975,#087b42); box-shadow: 0 8px 18px rgba(17,154,83,.2); font-weight: 900; }
.benefit-card h3 { margin-bottom: 10px; font-size: 1.1rem; }
.benefit-card p { margin: 0; color: var(--muted); font-size: .92rem; }

.books-section { padding-top: 88px; background: #fff; }
.level-notice { max-width: 960px; margin: -22px auto 36px; padding: 15px 20px; border: 1px solid #b8dbff; border-radius: 12px; color: #084989; background: #eff7ff; text-align: center; }
.product-grid { max-width: 1260px; margin: 0 auto; display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; align-items: stretch; }
.product-card { position: relative; display: grid; grid-template-rows: 320px 1fr; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 16px 45px rgba(6,39,77,.08); transition: transform .25s ease, box-shadow .25s ease; }
.product-card:hover { transform: translateY(-7px); box-shadow: var(--shadow); }
.product-card.featured { border: 2px solid #1476dc; }
.popular { position: absolute; z-index: 5; top: 14px; right: 14px; padding: 6px 11px; border-radius: 999px; background: var(--navy); color: #fff; font-size: .7rem; font-weight: 900; letter-spacing: .08em; }
.product-image-wrap { display: grid; place-items: center; padding: 28px; background: linear-gradient(160deg,#eaf4ff,#f8fbff); }
.product-card.beginner .product-image-wrap { background: linear-gradient(160deg,#fff1f1,#fffafa); }
.product-card.elementary .product-image-wrap { background: linear-gradient(160deg,#fff7ed,#fffdf9); }
.product-card.intermediate .product-image-wrap { background: linear-gradient(160deg,#edf8f2,#fbfffd); }
.product-image-wrap img { height: 270px; width: auto; border-radius: 3px; box-shadow: 0 18px 36px rgba(6,39,77,.2); transition: transform .35s ease; }
.product-card:hover .product-image-wrap img { transform: scale(1.025) rotate(-.5deg); }
.product-content { padding: 27px; display: flex; flex-direction: column; }
.course-label { color: var(--blue); font-size: .68rem; font-weight: 900; letter-spacing: .13em; }
.product-content h3 { margin: 6px 0 7px; font-size: 1.8rem; }
.book-match { margin: 0 0 20px; color: var(--muted); }
.book-match strong { color: var(--ink); }
.product-content ul { padding: 0; margin: 0 0 26px; list-style: none; }
.product-content li { position: relative; padding: 8px 0 8px 28px; color: var(--muted); border-bottom: 1px solid #edf1f5; font-size: .9rem; }
.product-content li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 900; }
.product-price { margin-top: auto; margin-bottom: 17px; display: flex; align-items: baseline; gap: 10px; }
.product-price span { color: #8a97a6; text-decoration: line-through; }
.product-price strong { color: var(--navy); font-size: 2rem; }
.instalment-note { margin: -12px 0 16px; color: var(--green-dark); font-size: .78rem; font-weight: 800; }

.videos-section { position: relative; padding-top: 76px; padding-bottom: 76px; background: radial-gradient(circle at 10% 0,rgba(28,118,209,.36),transparent 32%), linear-gradient(135deg,#07305c,#041d39); overflow: hidden; }
.videos-section::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: linear-gradient(90deg,transparent,#4ca7ff,transparent); }
.videos-section .section-heading h2 { color: #fff; }
.video-grid { position: relative; z-index: 2; max-width: 1160px; margin: 0 auto; display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.video-card { overflow: hidden; border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius); background: rgba(255,255,255,.07); box-shadow: 0 24px 60px rgba(0,0,0,.18); transition: transform .3s ease, border-color .3s ease; }
.video-card:hover { transform: translateY(-7px); border-color: rgba(117,184,255,.6); }
.video-shell { aspect-ratio: 16/9; background: linear-gradient(145deg,#0c4f8e,#041d39); }
.video-shell iframe { width: 100%; height: 100%; border: 0; }
.video-placeholder { width: 100%; height: 100%; display: grid; place-content: center; gap: 12px; text-align: center; color: #d9ecff; }
.video-placeholder span { width: 70px; height: 70px; display: grid; place-items: center; margin: 0 auto; padding-left: 5px; border-radius: 50%; color: var(--navy); background: #fff; font-size: 1.5rem; }
.video-placeholder strong { font-size: .9rem; }
.video-copy { display: flex; gap: 18px; padding: 22px; color: #fff; }
.video-copy > span { color: #75b8ff; font-size: .75rem; font-weight: 900; }
.video-copy h3 { margin-bottom: 8px; color: #fff; }
.video-copy p { margin: 0; color: #bcd2e8; }

.support-section { margin: 30px clamp(20px,6vw,104px) 0; padding: 45px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 30px; color: #fff; background: radial-gradient(circle at 12% 0,rgba(31,135,229,.5),transparent 34%), linear-gradient(120deg,#0958a8,#06274d); border: 1px solid rgba(117,184,255,.28); border-radius: var(--radius); box-shadow: var(--shadow); }
.support-icon { width: 76px; height: 76px; display: grid; place-items: center; }
.support-icon img { width: 72px; height: 72px; object-fit: contain; }
.support-section h2 { margin-bottom: 12px; color: #fff; font-size: clamp(1.7rem,3vw,2.7rem); }
.support-section p:last-child { margin: 0; color: #cfe2f4; }

.faq-section { max-width: 1120px; margin: 0 auto; padding-top: 84px; padding-bottom: 84px; }
.faq-list { display: grid; gap: 10px; }
.faq-item { overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: 0 10px 30px rgba(6,39,77,.045); transition: border-color .28s ease, box-shadow .28s ease, transform .28s ease; }
.faq-item.active { border-color: #9cc7f4; box-shadow: 0 18px 42px rgba(6,39,77,.1); transform: translateY(-2px); }
.faq-question { width: 100%; position: relative; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 22px; border: 0; color: var(--ink); background: transparent; text-align: left; cursor: pointer; font-size: 1.05rem; font-weight: 800; }
.faq-question i { width: 30px; height: 30px; position: relative; flex: 0 0 auto; border-radius: 50%; background: var(--sky); transition: transform .32s ease, background .32s ease; }
.faq-question i::before, .faq-question i::after { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 2px; border-radius: 2px; background: var(--blue); transform: translate(-50%,-50%); transition: transform .32s ease; }
.faq-question i::after { transform: translate(-50%,-50%) rotate(90deg); }
.faq-item.active .faq-question i { background: var(--navy); transform: rotate(180deg); }
.faq-item.active .faq-question i::before, .faq-item.active .faq-question i::after { background: #fff; }
.faq-item.active .faq-question i::after { transform: translate(-50%,-50%) rotate(0); }
.faq-answer { display: grid; grid-template-rows: 0fr; opacity: 0; transition: grid-template-rows .38s ease, opacity .28s ease; }
.faq-answer > div { overflow: hidden; }
.faq-item.active .faq-answer { grid-template-rows: 1fr; opacity: 1; }
.faq-answer p { max-width: 880px; margin: 0; padding: 0 72px 22px 22px; color: var(--muted); }
.faq-answer a { color: var(--blue); }

.final-cta { margin: 0 clamp(20px,4vw,70px) 70px; min-height: 220px; padding: 42px clamp(26px,5vw,64px); display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 28px; border: 1px solid rgba(117,184,255,.24); border-radius: var(--radius); color: #fff; background: radial-gradient(circle at 10% 0,rgba(22,117,205,.55),transparent 34%), linear-gradient(120deg,#0a3f76,#06274d); }
.final-cta img { width: 80px; }
.final-cta h2 { max-width: 760px; margin: 0; color: #fff; font-size: clamp(1.8rem,3.6vw,3.5rem); }
footer { padding: 0 clamp(20px,6vw,104px) 48px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px; color: #6d7988; font-size: .8rem; }
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand img:first-child { width: 38px; }
.footer-brand img:last-child { width: 125px; }
footer p { margin: 0; }
footer a { color: var(--blue); }
.access-disclaimer { width: 100%; order: 5; text-align: center; opacity: .58; font-size: .68rem; }

.purchase-dock { position: fixed; z-index: 150; left: 50%; bottom: 13px; transform: translateX(-50%); width: min(760px,calc(100% - 24px)); min-height: 66px; padding: 8px 9px 8px 17px; display: grid; grid-template-columns: 1fr auto 158px; align-items: center; gap: 18px; border: 1px solid rgba(255,255,255,.4); border-radius: 18px; color: #fff; background: rgba(6,39,77,.95); box-shadow: 0 18px 55px rgba(6,39,77,.35); backdrop-filter: blur(16px); }
.purchase-dock label { display: flex; align-items: center; gap: 12px; min-width: 0; font-size: .78rem; font-weight: 800; }
.purchase-dock select { min-width: 170px; padding: 9px 30px 9px 12px; border: 1px solid rgba(255,255,255,.25); border-radius: 9px; color: #fff; background: #0b4a83; cursor: pointer; }
.dock-price { display: grid; grid-template-columns: auto auto; align-items: baseline; gap: 0 8px; white-space: nowrap; }
.dock-price span { color: #aebfd0; text-decoration: line-through; font-size: .85rem; }
.dock-price strong { font-size: 1.35rem; }
.dock-price small { grid-column: 1 / -1; color: #9fdab8; font-size: .62rem; font-weight: 800; text-align: right; }
.purchase-dock .button { min-height: 48px; }

.reveal { opacity: 0; transform: translateY(18px) scale(.992); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.75,.25,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes bookFloat { from, to { transform: translateY(0); } 50% { transform: translateY(-7px); } }
@keyframes glowDrift { from { transform: translate3d(0,0,0) scale(1); } to { transform: translate3d(32px,18px,0) scale(1.08); } }
@keyframes orbitPulse { from, to { transform: scale(1); } 50% { transform: scale(1.045); } }

@media (max-width: 1080px) {
  .desktop-nav { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 54px; text-align: center; }
  .hero-copy { max-width: 850px; margin: 0 auto; }
  .hero-actions, .trust-row { justify-content: center; }
  .hero-visual { min-height: 470px; }
  .book-stage { width: min(610px, 86vw); }
  .price-strip { grid-template-columns: 1fr; text-align: center; }
  .price-strip p { margin-left: auto; margin-right: auto; }
  .price-comparison { justify-self: center; }
  .product-grid { grid-template-columns: 1fr; max-width: 700px; }
  .product-card { grid-template-columns: 300px 1fr; grid-template-rows: 1fr; }
  .support-section { grid-template-columns: auto 1fr; }
  .support-section .button { grid-column: 2; justify-self: start; }
  footer { grid-template-columns: 1fr; text-align: center; }
  .footer-brand { justify-content: center; }
}

@media (max-width: 760px) {
  body { padding-bottom: 94px; }
  .announcement { min-height: 32px; padding: 6px 12px; font-size: .7rem; }
  .site-header { min-height: 60px; padding: 7px 12px; }
  .brand { gap: 8px; }
  .brand-ic { width: 34px; height: 34px; }
  .brand-oxford { width: 92px; height: 26px; }
  .brand-divider { height: 23px; }
  .language-control { padding: 6px 8px; }
  .language-control select { width: 96px; font-size: .78rem; }
  .hero { min-height: auto; padding: 38px 15px 42px; gap: 18px; }
  .eyebrow { margin-bottom: 9px; font-size: .68rem; }
  h1 { max-width: 540px; margin-left: auto; margin-right: auto; margin-bottom: 13px; font-size: clamp(2.1rem, 9.6vw, 3rem); line-height: 1.03; }
  h2 { font-size: clamp(1.8rem, 8vw, 2.45rem); }
  .hero-lede { max-width: 520px; margin-bottom: 18px; font-size: .94rem; line-height: 1.52; }
  .hero-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  .hero-actions .button { width: 100%; min-height: 46px; padding: 10px 12px; font-size: .85rem; }
  .trust-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 6px; max-width: 540px; margin: 17px auto 0; }
  .trust-row > span { justify-content: center; gap: 5px; font-size: .68rem; line-height: 1.2; }
  .trust-row strong { min-width: 24px; height: 24px; padding: 0 5px; }
  .hero-visual { min-height: 245px; }
  .book-stage { width: 100%; max-width: 360px; height: 240px; }
  .book { width: 112px; bottom: 28px; }
  .book span { bottom: -27px; padding: 5px 9px; font-size: .61rem; }
  .book-left { transform: rotate(-9deg) translateY(25px); }
  .book-right { transform: rotate(9deg) translateY(25px); }
  .access-orbit { width: 62px; height: 62px; top: -5px; right: 2px; padding: 5px; border-width: 4px; }
  .access-orbit span { font-size: 1.55rem; }
  .access-orbit small { font-size: .54rem; }
  .videos-section { padding: 52px 14px; }
  .videos-section .section-heading { margin-bottom: 25px; }
  .video-grid { gap: 13px; }
  .video-copy { gap: 12px; padding: 16px; }
  .video-copy h3 { margin-bottom: 5px; font-size: 1.08rem; }
  .video-copy p { font-size: .86rem; line-height: 1.45; }
  .video-placeholder span { width: 55px; height: 55px; }
  .price-strip { margin: 34px 10px 0; padding: 27px 17px 21px; gap: 17px; border-radius: 22px; }
  .price-strip h2 { margin-bottom: 9px; font-size: 1.55rem; line-height: 1.08; }
  .price-strip > div:first-child > p:last-child { font-size: .86rem; line-height: 1.5; }
  .price-comparison { width: 100%; grid-template-columns: minmax(0,1fr) 32px minmax(0,1fr); gap: 5px; padding: 47px 9px 14px; border: 1px solid rgba(255,255,255,.15); border-radius: 18px; background: rgba(255,255,255,.07); }
  .price-old, .price-new { min-width: 0; align-items: center; justify-content: center; text-align: center; }
  .price-old span, .price-new span { font-size: .63rem; line-height: 1.25; letter-spacing: .045em; }
  .price-old strong { margin-top: 5px; font-size: 1.45rem; }
  .price-new strong { margin-top: 5px; font-size: 2.4rem; }
  .price-new small { margin-top: 6px; font-size: .65rem; line-height: 1.25; }
  .price-arrow { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; color: #062f25; background: #77e9a4; font-size: 1.1rem; font-weight: 900; }
  .save-pill { top: 10px; left: 50%; right: auto; transform: translateX(-50%); padding: 6px 13px; white-space: nowrap; font-size: .66rem; }
  .price-note { font-size: .68rem; line-height: 1.45; }
  .section { padding: 62px 15px; }
  .section-heading { margin-bottom: 30px; }
  .section-heading p:last-child { font-size: .95rem; }
  .intro-section { margin: 46px 10px 0; padding: 45px 14px; border-radius: 22px; }
  .intro-section::after { font-size: 11rem; top: -25px; }
  .course-flow { grid-template-columns: 1fr; }
  .course-flow > div { min-height: auto; padding: 21px; }
  .course-flow span { width: 34px; height: 34px; margin-bottom: 14px; }
  .course-flow > div::after { display: none; }
  .benefits-section { margin-top: 46px; }
  .benefit-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .benefit-card, .benefit-card:nth-child(1), .benefit-card:nth-child(7) { min-height: auto; grid-column: span 1; padding: 18px; }
  .benefit-card:nth-child(1) { grid-column: 1 / -1; }
  .tick { width: 28px; height: 28px; margin-bottom: 15px; border-radius: 8px; }
  .benefit-card h3 { font-size: .98rem; }
  .benefit-card p { font-size: .79rem; line-height: 1.45; }
  .books-section { padding-top: 62px; }
  .level-notice { margin: -12px auto 24px; padding: 12px 14px; font-size: .83rem; }
  .product-grid { gap: 15px; }
  .product-card { grid-template-columns: 1fr; grid-template-rows: 270px 1fr; }
  .product-image-wrap { padding: 22px; }
  .product-image-wrap img { height: 225px; }
  .product-content { padding: 23px; }
  .product-content h3 { font-size: 1.5rem; }
  .video-grid { grid-template-columns: 1fr; }
  .support-section { margin: 18px 10px 0; padding: 30px 20px; grid-template-columns: 1fr; text-align: center; }
  .support-icon { margin: 0 auto; }
  .support-icon, .support-icon img { width: 62px; height: 62px; }
  .support-section .button { grid-column: auto; justify-self: stretch; }
  .faq-section { padding: 60px 14px; }
  .faq-list { gap: 8px; }
  .faq-question { padding: 17px; font-size: .94rem; }
  .faq-question i { width: 27px; height: 27px; }
  .faq-answer p { padding: 0 54px 18px 17px; font-size: .86rem; }
  .final-cta { margin: 0 10px 48px; min-height: 0; padding: 30px 20px; grid-template-columns: 1fr; text-align: center; }
  .final-cta img { margin: 0 auto; }
  .final-cta .button { width: 100%; }
  footer { justify-content: center; padding: 0 18px 34px; text-align: center; }
  .purchase-dock { bottom: 7px; width: calc(100% - 14px); min-height: 60px; grid-template-columns: 1fr 116px; gap: 7px; padding: 7px; }
  .purchase-dock label { display: block; }
  .purchase-dock label > span { display: none; }
  .purchase-dock select { width: 100%; min-width: 0; height: 46px; }
  .dock-price { display: none; }
  .purchase-dock .button { min-height: 46px; padding: 9px 10px; font-size: .88rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}