/* Colours are taken from the book cover and the Wise Owl logo. */
@font-face { font-family: "Inter Display"; src: url("../fonts/inter-display-800.woff") format("woff"); font-weight: 800; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../fonts/inter-600.woff") format("woff"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Lora"; src: url("../fonts/lora.woff") format("woff"); font-weight: 400 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Lora"; src: url("../fonts/lora-italic.woff") format("woff"); font-weight: 400 700; font-style: italic; font-display: swap; }

:root {
  --navy: #233350;
  --navy-deep: #1A2740;
  --paper: #F7EFE3;
  --paper-2: #EFE4D2;
  --orange: #E8743B;
  --yellow: #F5BC41;
  --teal: #2F8E85;
  --teal-deep: #1C6A66;
  --plum: #5D4A86;
  --owl: #234B5A;
  --ochre: #BF8434;
  --line: rgba(35, 51, 80, .22);
  --display: "Inter Display", "Inter", system-ui, sans-serif;
  --ui: "Inter", system-ui, sans-serif;
  --body: "Lora", Georgia, serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--navy); font: 400 1.0625rem/1.65 var(--body); overflow-wrap: break-word; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-underline-offset: .18em; }
h1, h2, h3 { font-family: var(--display); font-weight: 800; line-height: 1.08; letter-spacing: -.018em; margin: 0; text-wrap: balance; }
h2 { font-size: clamp(1.9rem, 1.3rem + 2.6vw, 3.25rem); }
h3 { font-family: var(--ui); font-weight: 600; font-size: 1.1rem; line-height: 1.3; letter-spacing: 0; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.wrap { width: min(1160px, 100%); margin-inline: auto; padding-inline: 16px; }
@media (min-width: 720px) { .wrap { padding-inline: 32px; } }
.lead { font-size: 1.2rem; line-height: 1.55; max-width: 58ch; margin-top: 1rem; }
.fine { font-size: .9rem; line-height: 1.5; }
section { padding-block: clamp(3.5rem, 7vw, 6.5rem); }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }
.skip { position: absolute; left: -999px; top: 8px; background: #fff; padding: 8px 12px; z-index: 50; font-family: var(--ui); }
.skip:focus { left: 8px; }

/* Buttons */
.btn { display: inline-block; font: 600 1.05rem/1.25 var(--ui); padding: .95em 1.4em; border: 2px solid transparent; border-radius: 999px; cursor: pointer; text-decoration: none; text-align: center; transition: transform .12s ease, background-color .12s ease; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: none; }
.btn-buy { background: var(--yellow); color: var(--navy-deep); }
.btn-buy:hover { background: #FFCB58; }
.btn-dark { background: var(--navy); color: var(--paper); }
.btn-dark:hover { background: var(--navy-deep); }
.btn-outline { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-text { background: none; border: 0; font: 600 1rem var(--ui); color: inherit; text-decoration: underline; text-underline-offset: .2em; cursor: pointer; padding: .6em; }
.link-light { font-family: var(--ui); font-weight: 600; font-size: 1rem; color: var(--paper); }

/* Hero */
.hero { background: var(--navy); color: var(--paper); position: relative; overflow: hidden; }
.hero-bar { display: flex; justify-content: space-between; align-items: center; padding-block: 14px; }
.hero-logo img { width: 72px; height: 72px; }
.lang-link { font: 600 .95rem var(--ui); padding: .5em .2em; }
.hero-main { display: grid; gap: 2rem; padding-block: 1rem 2rem; }
.hero-kicker { font: 600 1rem/1.4 var(--ui); color: var(--yellow); margin-bottom: 1rem; }
.hero h1 { font-size: clamp(2.1rem, 1.25rem + 3.7vw, 4.1rem); line-height: 1.04; }
.hero-quote { font: italic 400 clamp(1.25rem, 1.1rem + .7vw, 1.6rem)/1.35 var(--body); color: var(--yellow); margin: 1.3rem 0 0; max-width: 34ch; }
.hero-lead { font-size: 1.15rem; line-height: 1.55; margin: 1rem 0 1.6rem; max-width: 56ch; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: .9rem 1.5rem; }
.hero-micro { font: 400 .92rem/1.5 var(--body); margin: 1rem 0 0; opacity: .88; max-width: 52ch; }
.hero-book { display: flex; justify-content: center; }
.hero-facts { display: flex; flex-wrap: wrap; gap: .3rem 1.6rem; font: 600 .95rem/1.5 var(--ui); padding-block: .5rem 1.6rem; position: relative; z-index: 2; }
.rhythm-band { display: block; width: 100%; height: clamp(110px, 14vw, 200px); }
.wave { animation: drift 7s linear infinite; }
.wave-1 { animation-duration: 4.6s; }
@keyframes drift { to { transform: translateX(160px); } }
@media (prefers-reduced-motion: reduce) {
  .wave { animation: none; }
  html { scroll-behavior: auto; }
  .btn, .layer, .drop, .sticky-buy { transition: none !important; }
}
@media (min-width: 900px) {
  .hero-main { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); align-items: center; gap: 3.5rem; }
  .hero-book .book { width: min(360px, 100%); }
}

/* Book mockup */
.book { width: min(250px, 66vw); perspective: 1400px; }
.book img { transform: rotateY(-14deg) rotateX(2deg); transform-origin: left center; border-radius: 2px 5px 5px 2px; box-shadow: inset 5px 0 8px rgba(0,0,0,.14), 22px 26px 40px rgba(8, 14, 28, .45), 2px 2px 0 #d9cfbd, 5px 5px 0 #e9dfcc; }


/* Familiar */
.familiar-list { margin-top: 2.2rem; }
.familiar-list li { display: grid; gap: .25rem 1.5rem; padding-block: 1.05rem; border-top: 1px solid var(--line); }
.familiar-list q { font: italic 400 clamp(1.25rem, 1.05rem + .9vw, 1.75rem)/1.32 var(--body); quotes: none; }
.ch-tag { font: 600 .9rem/1.4 var(--ui); color: var(--teal-deep); white-space: nowrap; }
.familiar-note { margin-top: 1.2rem; max-width: 70ch; border-top: 1px solid var(--line); padding-top: 1rem; }
.familiar-answer { font: 800 clamp(1.45rem, 1.15rem + 1.3vw, 2.15rem)/1.2 var(--display); letter-spacing: -.012em; margin: 2.5rem 0 0; max-width: 30ch; text-wrap: pretty; }
@media (min-width: 720px) { .familiar-list li { grid-template-columns: 1fr auto; align-items: baseline; } }

/* Two rhythms */
.rhythm { padding-bottom: 0; background: var(--paper-2); }
.rhythm-head { padding-bottom: 2.5rem; }
.split-row { display: grid; grid-template-columns: 1fr 1fr; }
.split-row > div { padding: 1.05rem 16px; display: flex; font-size: clamp(.98rem, .9rem + .5vw, 1.25rem); line-height: 1.35; }
.side-a { background: var(--orange); color: var(--navy-deep); justify-content: flex-end; text-align: right; }
.side-b { background: var(--teal-deep); color: #fff; }
.split-row span { max-width: 460px; width: 100%; }
.split-head > div { font: 800 clamp(1.25rem, 1rem + 1.2vw, 2rem)/1.1 var(--display); padding-top: 1.8rem; }
.split-row:last-of-type > div { padding-bottom: 1.8rem; }
.both { background: var(--plum); color: #fff; padding-block: 2rem 2.4rem; }
.both h3 { font: 800 clamp(1.25rem, 1rem + 1.2vw, 2rem)/1.1 var(--display); margin-bottom: .6rem; }
.both p { max-width: 62ch; font-size: 1.12rem; margin: 0; }

/* Picker */
.picker { background: var(--yellow); color: var(--navy-deep); }
.picker-grid { display: grid; gap: 1.6rem; margin-top: 2rem; }
.picker-options { display: flex; flex-wrap: wrap; gap: .5rem; align-content: flex-start; }
.pick { font: 600 .98rem/1.25 var(--ui); padding: .68em .95em; text-align: left; color: var(--navy-deep); background: transparent; border: 2px solid var(--navy-deep); border-radius: 22px; cursor: pointer; }
.pick:hover { background: rgba(26, 39, 64, .1); }
.pick[aria-pressed="true"] { background: var(--navy-deep); color: var(--paper); }
.pick:focus-visible, .picker :focus-visible { outline-color: var(--navy-deep); }
.picker-answers { background: var(--paper); padding: 1.5rem; border-radius: 6px; align-self: start; }
.answer { margin-bottom: 1.3rem; }
.js .answer[data-off] { display: none; }
.answer + .answer { border-top: 1px solid var(--line); padding-top: 1.2rem; }
.js .answer + .answer { border: 0; padding: 0; }
.answer-ch { font: 600 .98rem/1.4 var(--ui); margin-bottom: .7rem; }
.answer blockquote { margin: 0; font: italic 400 clamp(1.25rem, 1.1rem + .7vw, 1.6rem)/1.35 var(--body); }
.answer-src { font-size: .88rem; margin: .7rem 0 0; }
.picker-safety { margin: 1.6rem 0 0; font-size: .95rem; max-width: 70ch; }
.picker-answers .btn { width: 100%; }
@media (min-width: 900px) {
  .picker-grid { grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 2.5rem; }
  .picker-answers { position: sticky; top: 1rem; padding: 2rem; }
}

/* Load glass */
.glass-grid { display: grid; gap: 2.5rem; align-items: center; }
.glass-grid .btn { margin-top: .4rem; }
.glass-end { font: 800 1.35rem/1.25 var(--display); margin: 1.4rem 0 .6rem; color: var(--teal-deep); }
.js .glass-end:not(.is-on) { visibility: hidden; }
.glass-stage { width: min(380px, 100%); margin-inline: auto; position: relative; padding-top: 96px; }
.glass { border: 5px solid var(--navy); border-top: 0; border-radius: 0 0 14px 14px; height: 340px; display: flex; flex-direction: column-reverse; overflow: hidden; background: rgba(255,255,255,.45); }
.layer { flex: 0 0 auto; height: 58px; display: flex; align-items: center; justify-content: center; text-align: center; padding: 0 8px; font: 600 .98rem/1.15 var(--ui); transition: height .45s cubic-bezier(.2,.8,.3,1), opacity .3s; overflow: hidden; }
.layer-0 { background: var(--teal-deep); color: #fff; }
.layer-1 { background: var(--teal); color: var(--navy-deep); }
.layer-2 { background: var(--orange); color: var(--navy-deep); }
.layer-3 { background: var(--yellow); color: var(--navy-deep); }
.layer-4 { background: #F3D58B; color: var(--navy-deep); }
.js .layer:not(.is-on) { height: 0; opacity: 0; }
.drop { position: absolute; top: 0; left: 0; right: 0; display: flex; flex-direction: column; align-items: center; gap: 6px; transition: transform .55s cubic-bezier(.5,0,.8,.4), opacity .2s .5s; }
.drop-text { font: 600 1rem/1.2 var(--ui); }
.drop-shape { width: 26px; height: 26px; background: var(--orange); border-radius: 0 50% 50% 50%; transform: rotate(45deg); }
.js .glass-stage:not(.is-ready) .drop { opacity: .28; }
.glass-stage.is-fallen .drop-shape { transform: rotate(45deg) translate(40px, 40px); transition: transform .55s cubic-bezier(.5,0,.8,.4), opacity .2s .5s; opacity: 0; }
.glass-stage.is-fallen .glass { border-color: var(--orange); box-shadow: 0 0 0 5px rgba(232, 116, 59, .3); }
@media (min-width: 860px) { .glass-grid { grid-template-columns: 1.25fr 1fr; gap: 4rem; } }

/* Phrases */
.phrases { background: var(--navy); color: var(--paper); }
.phrase-table { width: 100%; border-collapse: collapse; margin-top: 2rem; table-layout: fixed; }
.phrase-table th { font: 600 1rem var(--ui); text-align: left; padding: 0 1rem .7rem 0; }
.phrase-table th:first-child { color: #F2A07A; }
.phrase-table th:last-child { color: var(--yellow); }
.phrase-table td { vertical-align: top; padding: 1rem 1rem 1rem 0; border-top: 1px solid rgba(247, 239, 227, .28); font-size: clamp(1rem, .92rem + .55vw, 1.32rem); line-height: 1.35; }
.phrase-table td:first-child { opacity: .78; font-style: italic; }
.phrase-table td:last-child { font-weight: 500; padding-right: 0; }

/* Look inside */
.pages { display: flex; gap: 1.2rem; overflow-x: auto; padding: 2.2rem 16px 1.2rem; scroll-snap-type: x proximity; -webkit-overflow-scrolling: touch; }
.pages li { flex: 0 0 min(250px, 68vw); scroll-snap-align: center; }
.pages li p { font: 400 .92rem/1.4 var(--body); margin: .7rem 0 0; }
.page-btn { padding: 0; border: 0; background: none; cursor: zoom-in; display: block; width: 100%; box-shadow: 0 8px 22px rgba(35, 51, 80, .22); }
@media (min-width: 1200px) { .pages { padding-inline: calc((100vw - 1096px) / 2); } }
.inside-foot { margin-top: 1.2rem; }
.inside-foot .fine { margin-top: .8rem; max-width: 60ch; }

/* Contents */
.contents { background: var(--paper-2); }
.parts { columns: 1; margin-top: 2.2rem; column-gap: 3rem; }
.part { break-inside: avoid; margin-bottom: 2rem; }
.part h3 { padding-bottom: .5rem; border-bottom: 2px solid var(--navy); margin-bottom: .4rem; }
.part ol li { display: grid; grid-template-columns: 2.1rem 1fr; padding-block: .34rem; line-height: 1.38; }
.part ol { counter-reset: none; }
.part ol li::before { content: attr(value); font: 600 .95rem/1.5 var(--ui); color: var(--teal-deep); }
.appx-h { font: 800 clamp(1.3rem, 1.1rem + .9vw, 1.8rem)/1.15 var(--display); margin-top: 1.4rem; }
.appx { margin: 1.3rem 0 0; display: grid; gap: 1.2rem; }
.appx dt { font: 600 1.02rem/1.35 var(--ui); }
.appx dt span { display: inline-grid; place-items: center; width: 1.7em; height: 1.7em; border-radius: 50%; background: var(--teal-deep); color: #fff; margin-right: .3em; font-size: .9em; }
.appx dd { margin: .35rem 0 0; line-height: 1.45; }
@media (min-width: 760px) { .parts { columns: 2; } .appx { grid-template-columns: repeat(2, 1fr); gap: 1.6rem 3rem; } }
@media (min-width: 1040px) { .appx { grid-template-columns: repeat(4, 1fr); gap: 2rem; } }

/* Research */
.figures { margin-top: 2rem; }
.figures li { display: grid; gap: .2rem 2rem; padding-block: 1.3rem; border-top: 1px solid var(--line); }
.figures strong { font: 800 clamp(1.8rem, 1.4rem + 1.6vw, 2.8rem)/1.05 var(--display); letter-spacing: -.02em; color: var(--teal-deep); }
.figures cite { font: 400 .88rem/1.4 var(--body); font-style: italic; opacity: .85; }
.research-close { margin-top: 1rem; padding-top: 1.5rem; border-top: 2px solid var(--navy); font-size: 1.2rem; line-height: 1.5; max-width: 66ch; }
@media (min-width: 820px) {
  .figures li { grid-template-columns: 15rem 1fr 13rem; align-items: baseline; }
  .figures cite { text-align: right; }
}

/* Fit */
.fit { background: var(--teal-deep); color: #fff; }
.fit h2 { font-size: clamp(1.5rem, 1.2rem + 1.3vw, 2.2rem); margin-bottom: 1.2rem; }
.fit-grid { display: grid; gap: 2.8rem; }
.fit li { padding: .7rem 0 .7rem 1.6rem; border-top: 1px solid rgba(255,255,255,.3); position: relative; line-height: 1.42; }
.fit li::before { content: ""; position: absolute; left: 0; top: 1.2rem; width: .75rem; height: .75rem; border-radius: 50%; background: var(--yellow); }
.fit-grid > div:last-child li::before { background: none; border: 2px solid #fff; }
@media (min-width: 820px) { .fit-grid { grid-template-columns: 1fr 1fr; gap: 4rem; } }


.reviews figure { margin: 2rem 0 0; }
.reviews blockquote { margin: 0; font: italic 400 1.35rem/1.4 var(--body); }
.reviews figcaption { font: 600 .95rem var(--ui); margin-top: .6rem; }

/* Offer */
.offer { background: var(--navy); color: var(--paper); }
.offer-grid { display: grid; gap: 2.5rem; align-items: center; }
.offer-book { display: flex; justify-content: center; }
.offer-copy > p { max-width: 54ch; }
.offer h2 { margin-bottom: 1.2rem; font-size: clamp(1.8rem, 1.3rem + 2.1vw, 2.9rem); }
.offer-list { margin: 1.4rem 0; }
.offer-list li { padding: .5rem 0 .5rem 1.6rem; position: relative; line-height: 1.4; border-top: 1px solid rgba(247, 239, 227, .22); }
.offer-list li::before { content: ""; position: absolute; left: 0; top: 1rem; width: .75rem; height: .75rem; border-radius: 50%; background: var(--yellow); }
.price { font: 800 clamp(3rem, 2.2rem + 3vw, 4.4rem)/1 var(--display); letter-spacing: -.025em; color: var(--yellow); margin: 1.6rem 0 .3rem; }
.price-note { font-size: .98rem; margin-bottom: 1.2rem; }
.offer .btn-buy { width: min(100%, 420px); }
.guarantee { margin: 1.8rem 0 1.4rem; padding-left: 1rem; border-left: 4px solid var(--teal); max-width: 52ch; }
.guarantee h3 { margin-bottom: .3rem; }
.guarantee p { margin: 0; font-size: 1rem; line-height: 1.5; }
@media (min-width: 900px) {
  .offer-grid { grid-template-columns: 1fr 1.5fr; gap: 4.5rem; }
  .offer-book .book { width: min(340px, 100%); }
}

/* FAQ */
.faq details { border-top: 1px solid var(--line); max-width: 780px; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq h2 { margin-bottom: 2rem; }
.faq summary { font: 600 1.08rem/1.35 var(--ui); padding-block: 1.05rem; cursor: pointer; }
.faq details p { margin: 0 0 1.2rem; max-width: 68ch; }

/* Sticky purchase bar */
.sticky-buy { position: fixed; z-index: 20; left: 0; right: 0; bottom: 0; display: flex; align-items: center; justify-content: flex-end; gap: 1rem; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: var(--navy-deep); color: var(--paper); transform: translateY(110%); transition: transform .25s ease; }
.sticky-buy.is-on { transform: none; }
.sticky-buy[hidden] { display: none; }
.sticky-title { font: 600 .95rem/1.2 var(--ui); margin-right: auto; min-width: 0; }
.sticky-buy .btn { padding: .7em 1.2em; font-size: .98rem; white-space: nowrap; }

/* Dialogs */
.modal { border: 0; border-radius: 10px; padding: 0; width: min(520px, calc(100vw - 32px)); background: var(--paper); color: var(--navy); }
.modal::backdrop { background: rgba(26, 39, 64, .72); }
.modal-page { width: min(760px, calc(100vw - 32px)); padding: 1rem; max-height: calc(100vh - 32px); }
.modal-page p { margin: .8rem 0 0; }
.page-close { display: block; margin-left: auto; }

/* Plain pages: legal and order */
.plain { width: min(760px, 100%); margin-inline: auto; padding: 3rem 16px 4rem; }
.plain h1 { font-size: clamp(2rem, 1.5rem + 2vw, 3rem); margin-bottom: 1rem; }
.plain h2 { font-size: 1.3rem; margin: 2rem 0 .6rem; }
.plain ol { list-style: decimal; padding-left: 1.4rem; }
.plain li { margin-bottom: .5rem; }

/* Footer */
.site-foot { background: var(--paper-2); padding: 2.5rem 0 5.5rem; font-size: .95rem; line-height: 1.5; }
.foot-grid { display: grid; gap: 1.4rem; }
.foot-logo img { width: 112px; height: 112px; }
.foot-links { display: flex; flex-wrap: wrap; gap: .4rem 1.4rem; font: 600 .95rem var(--ui); margin: .6rem 0; }
.foot-seller { margin: 0; }
.foot-safety { margin-bottom: .4rem; }
@media (min-width: 720px) { .foot-grid { grid-template-columns: auto 1fr; gap: 2.4rem; align-items: center; } }