/* micros: its own light, minimal, Apple-style theme (separate from acads, like marksup). Shared by every micros page.
   Written by hand. Coral always means a NANO. The one dark section is the 25-minute timer (owner, 25 Oct 2026). */
:root {
  --ink: #1d1d1f; --grey: #6e6e73; --hair: #d2d2d7; --alt: #f5f5f7; --bg: #fff;
  --c: #ef5b4a; --c-d: #a3301f; --c-s: #fdecea; --blue: #0075de; --blue-h: #005bab; --teal: #009999;
  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', Inter, 'Helvetica Neue', Arial, sans-serif;
  --ease: cubic-bezier(.25, .1, .25, 1);
  --wrap: 1080px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.47 var(--font); letter-spacing: -.022em; -webkit-font-smoothing: antialiased; overflow-x: clip; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 6px; }
.skip { position: absolute; left: 12px; top: -48px; z-index: 100; background: #000; color: #fff; padding: 8px 12px; border-radius: 8px; }
.skip:focus { top: 12px; }

/* logo: μ on a coral tile */
.logo { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 19px; letter-spacing: -.03em; }
.mk { width: 24px; height: 24px; border-radius: 7px; background: var(--c); color: #fff; display: grid; place-items: center; font-size: 15px; font-weight: 600; line-height: 1; }
.logo small { font-size: 12px; font-weight: 500; color: var(--grey); letter-spacing: -.01em; }

/* nav */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.8); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid rgba(0,0,0,.06); }
.nav .wrap { display: flex; align-items: center; gap: 26px; height: 52px; }
.nav-links { display: flex; gap: 26px; margin-left: auto; font-size: 13px; color: rgba(0,0,0,.8); }
.nav-links a { white-space: nowrap; } .nav-links a:hover { color: #000; }
.nav-links a[aria-current] { color: var(--ink); font-weight: 600; }
@media (max-width: 720px) { .nav-links { display: none; } .nav .btn { margin-left: auto; } }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 44px; padding: 0 22px; border-radius: 980px; background: var(--blue); color: #fff; font-size: 17px; font-weight: 500; transition: background .2s; }
.btn:hover { background: var(--blue-h); color: #fff; }
.btn.sm { height: 30px; padding: 0 14px; font-size: 13px; }
.btn.ghost { background: transparent; color: var(--blue); padding: 0 8px; }
.btn.ghost:hover { color: var(--blue-h); text-decoration: underline; }
.ctas { display: flex; gap: 14px; justify-content: center; align-items: center; flex-wrap: wrap; }

/* ---------- the zoom: syllabus → one NANO → MICRO → subject → syllabus, pinned while you scroll ---------- */
.zoom { position: relative; height: 760vh; }
.zoom-stick { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }
.zoom canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.zoom-stick::after { content: ''; position: absolute; left: 0; right: 0; top: 0; height: calc(var(--fade, 56%) + 60px); background: linear-gradient(#fff calc(100% - 60px), rgba(255,255,255,0)); opacity: var(--fade-o, 1); pointer-events: none; }
.zoom-cap, .zoom-lv, .zoom-hint { z-index: 1; }
.zoom-cap { position: absolute; left: 50%; top: calc(52px + 7vh); width: min(940px, calc(100% - 44px)); transform: translate(-50%, 12px); text-align: center; opacity: 0; pointer-events: none; will-change: opacity, transform; }
.zoom-cap.on { pointer-events: auto; }
.zoom-cap .kick { display: inline-flex; align-items: center; gap: 8px; font-size: 17px; font-weight: 600; color: var(--c); margin-bottom: 14px; }
.zoom-cap h1 { font-size: clamp(38px, 6.4vw, 84px); }
.zoom-cap h2 { font-size: clamp(34px, 5.2vw, 68px); }
.zoom-cap h1, .zoom-cap h2 { text-wrap: balance; line-height: 1.04; letter-spacing: -.045em; font-weight: 700; }
.zoom-cap h1 em, .zoom-cap h2 em { font-style: normal; color: var(--c); }
.zoom-cap p { margin-top: 14px; font-size: clamp(19px, 2.2vw, 26px); line-height: 1.3; letter-spacing: -.02em; color: var(--grey); font-weight: 500; }
.zoom-cap .ctas { margin-top: 26px; }
.zoom-lv { position: absolute; left: 50%; bottom: 4.5vh; transform: translateX(-50%); display: flex; gap: 4px; padding: 4px; border-radius: 980px; background: rgba(245,245,247,.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); opacity: 0; transition: opacity .4s var(--ease); }
.zoom-lv.on { opacity: 1; }
.zoom-lv span { padding: 7px 14px; border-radius: 980px; font-size: 13px; font-weight: 600; color: var(--grey); transition: background .3s var(--ease), color .3s var(--ease); white-space: nowrap; }
.zoom-lv small { font-size: 12px; font-weight: 500; color: #86868b; margin-left: 3px; }
.zoom-lv span.on { background: #fff; color: var(--ink); box-shadow: 0 1px 4px rgba(0,0,0,.1); }
.zoom-lv span.on::before { content: ''; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--c); margin-right: 7px; vertical-align: 1px; }
.zoom-hint { position: absolute; left: 50%; bottom: 4.5vh; transform: translateX(-50%); font-size: 13px; color: var(--grey); display: flex; flex-direction: column; align-items: center; gap: 6px; transition: opacity .4s; }
.zoom-hint i { width: 1.5px; height: 26px; background: linear-gradient(var(--grey), transparent); animation: hint 1.8s var(--ease) infinite; transform-origin: top; }
@keyframes hint { 0% { transform: scaleY(0); } 60% { transform: scaleY(1); opacity: 1; } 100% { opacity: 0; } }
@media (max-width: 560px) { .zoom-cap { top: calc(52px + 5vh); } .zoom-lv span { padding: 6px 9px; font-size: 12px; } .zoom-lv small { display: none; } .zoom-lv span.on small { display: inline; } }
@media (prefers-reduced-motion: reduce) { .zoom-hint i { animation: none; } }

/* ---------- sections ---------- */
.kick { display: inline-block; font-size: 17px; font-weight: 600; color: var(--c); margin-bottom: 12px; }
.sec { padding: clamp(88px, 12vw, 140px) 0; text-align: center; }
.sec.alt { background: var(--alt); }
.sec h1 { font-size: clamp(48px, 8vw, 104px); line-height: 1.02; letter-spacing: -.05em; font-weight: 700; text-wrap: balance; }
.sec h2 { font-size: clamp(36px, 5.6vw, 64px); line-height: 1.06; letter-spacing: -.04em; font-weight: 700; text-wrap: balance; }
.lede { margin: 18px auto 0; max-width: 680px; font-size: clamp(19px, 2vw, 24px); line-height: 1.35; color: var(--grey); font-weight: 500; text-wrap: balance; }
.note { margin-top: 18px; font-size: 14px; color: var(--grey); }
.note a { color: var(--blue); }
.wrap.narrow { max-width: 820px; } .wrap.wide { max-width: 1240px; }
.sec .ctas { margin-top: 32px; }
.ctas.left { justify-content: flex-start; }
.ar { width: .75em; height: .75em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; vertical-align: -.02em; margin-left: 2px; }

/* reveal on scroll */
.rv { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: calc(var(--i, 0) * 90ms); }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; transition: none; } }

/* ---------- “Don’t wait for motivation”: the one dark section, a 25-minute clock run by scrolling ---------- */
.timer { position: relative; height: 230vh; background: #000; color: #f5f5f7; }
.timer-stick { position: sticky; top: 0; height: 100vh; height: 100svh; display: flex; align-items: center; text-align: center; overflow: hidden; }
.timer-stick .wrap { width: 100%; }
.timer h2 { font-size: clamp(40px, 6.4vw, 84px); line-height: 1.04; letter-spacing: -.045em; font-weight: 700; text-wrap: balance; }
.timer .lede { color: #a1a1a6; }
.timer .kick { color: #ff7a6b; }
.clock { position: relative; width: min(46vh, 340px, 70vw); aspect-ratio: 1; margin: 5vh auto 0; }
.clock svg { width: 100%; height: 100%; display: block; overflow: visible; }
.clock .ticks line { stroke: #424245; stroke-width: 2; stroke-linecap: round; }
.clock .track { fill: none; stroke: #1d1d1f; stroke-width: 14; }
.clock .run { fill: none; stroke: var(--c); stroke-width: 14; stroke-linecap: round; transform: rotate(-90deg); transform-origin: 160px 160px; filter: drop-shadow(0 0 18px rgba(239,91,74,.45)); }
.clock-t { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; }
.clock-t b { font-size: clamp(44px, 7vh, 72px); font-weight: 600; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.clock-t span { font-size: 14px; font-weight: 600; color: #86868b; letter-spacing: .02em; }
.clock.done .clock-t b { color: var(--c); }
.timer-done { margin-top: 3vh; font-size: 19px; font-weight: 600; color: #f5f5f7; opacity: 0; transform: translateY(8px); transition: opacity .5s var(--ease), transform .5s var(--ease); }
.timer-done.on { opacity: 1; transform: none; }
@media (max-height: 700px) { .timer .lede { display: none; } }

/* ---------- the journey of a thousand miles ---------- */
.journey blockquote { margin: 0 auto; max-width: 980px; }
.journey blockquote p { font-size: clamp(32px, 5vw, 60px); line-height: 1.1; letter-spacing: -.04em; font-weight: 700; text-wrap: balance; }
.journey cite { display: block; margin-top: 16px; font-style: normal; font-size: 17px; color: var(--grey); }
.journey cite::before { content: '— '; }
.steps { display: block; width: 100%; max-width: 1000px; height: auto; margin: 56px auto 8px; overflow: visible; }
.steps path { fill: none; stroke: #e8e8ed; stroke-width: 2; stroke-dasharray: 2 8; stroke-linecap: round; }
.steps circle { fill: #d2d2d7; transition: fill .35s var(--ease), transform .35s var(--ease); transform-box: fill-box; transform-origin: center; }
.steps circle.on { fill: var(--c); }
.steps circle:first-of-type { fill: var(--c); }
.steps text { font: 600 13px var(--font); fill: var(--c); text-anchor: middle; }

/* ---------- the highest return in the least time ---------- */
.chart { margin: 56px auto 0; max-width: 960px; background: #fff; border-radius: 28px; padding: clamp(18px, 3vw, 36px); }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .ax { fill: none; stroke: #d2d2d7; stroke-width: 2; }
.chart .ln { fill: none; stroke-width: 6; stroke-linecap: round; stroke-dasharray: 1200; stroke-dashoffset: 1200; transition: stroke-dashoffset 2s var(--ease); }
.chart .ln.slow { stroke: #c7c7cc; transition-delay: .2s; } .chart .ln.fast { stroke: var(--c); transition-delay: .5s; }
.chart.in .ln { stroke-dashoffset: 0; }
.chart text { font: 500 15px var(--font); fill: var(--grey); }
.chart .lb { font-weight: 700; font-size: 17px; opacity: 0; transition: opacity .6s var(--ease) 1.8s; }
.chart .lb.fast { fill: var(--c-d); } .chart .lb.slow { fill: #86868b; }
.chart.in .lb { opacity: 1; }
.chart figcaption { margin-top: 10px; font-size: 13px; color: var(--grey); }
.three { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; margin: 64px auto 0; max-width: 960px; text-align: left; }
.three .dot { display: block; width: 14px; height: 14px; border-radius: 50%; background: var(--c); margin-bottom: 16px; }
.three h3 { font-size: 21px; letter-spacing: -.02em; }
.three p { margin-top: 6px; color: var(--grey); font-size: 17px; line-height: 1.45; }
@media (max-width: 760px) { .three { grid-template-columns: minmax(0, 1fr); gap: 28px; } .chart text { font-size: 20px; } .chart .lb { font-size: 22px; } }

/* ---------- inside a NANO: the real lesson in a window ---------- */
.device { margin: 56px auto 0; max-width: 980px; border-radius: 22px; overflow: hidden; background: #fff; box-shadow: 0 0 0 1px rgba(0,0,0,.06), 0 30px 80px -20px rgba(0,0,0,.25); text-align: left; }
.device-bar { height: 40px; display: flex; align-items: center; gap: 7px; padding: 0 16px; background: #f5f5f7; border-bottom: 1px solid #e8e8ed; }
.device-bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; } .device-bar i:nth-child(2) { background: #febc2e; } .device-bar i:nth-child(3) { background: #28c840; }
.device-bar span { margin-left: 10px; font-size: 12.5px; color: var(--grey); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.device-screen { position: relative; height: min(62vh, 560px); overflow: hidden; }
.device-screen iframe { display: block; border: 0; width: 100%; height: 100%; }
.inside .device-screen iframe { width: 166.7%; height: 166.7%; transform: scale(.6); transform-origin: 0 0; pointer-events: none; }
.device-open { position: absolute; left: 0; right: 0; bottom: 0; height: 140px; display: flex; align-items: flex-end; justify-content: center; padding-bottom: 24px;
  background: linear-gradient(rgba(255,255,255,0), #fff 70%); color: var(--blue); font-size: 17px; font-weight: 500; }
.device-open:hover { color: var(--blue-h); }
.parts { list-style: none; margin: 64px auto 0; padding: 0; max-width: 980px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px 36px; text-align: left; }
.parts span { font-size: 15px; font-weight: 700; color: var(--c); }
.parts h3 { margin-top: 6px; font-size: 21px; letter-spacing: -.02em; }
.parts p { margin-top: 6px; color: var(--grey); font-size: 17px; line-height: 1.45; }
@media (max-width: 760px) { .parts { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px 20px; } .parts p { font-size: 15px; } .inside .device-screen { height: 52vh; } }

/* ---------- the ten NANOs of a MICRO ---------- */
.ten { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; }
.ten li { aspect-ratio: 1; border-radius: 50%; background: var(--c); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 17px; letter-spacing: -.01em; }
.ten li.rev { background: var(--c-d); }
.in .ten li, .ten.in li { animation: pop .55s var(--ease) both; animation-delay: calc(var(--i) * 70ms); }
@keyframes pop { 0% { transform: scale(.3); opacity: 0; } 70% { transform: scale(1.06); opacity: 1; } 100% { transform: none; } }
@media (prefers-reduced-motion: reduce) { .in .ten li, .ten.in li { animation: none; } }

/* the product tile */
.product { margin: 48px auto 0; max-width: 1000px; border-radius: 32px; background: #fff; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 48px; align-items: center; padding: clamp(28px, 5vw, 64px); text-align: left; }
.sec:not(.alt) .product { background: var(--alt); }
.tag { display: inline-block; font-size: 13px; font-weight: 600; color: var(--c-d); background: var(--c-s); border-radius: 980px; padding: 5px 12px; }
.product h3 { margin-top: 14px; font-size: clamp(34px, 4.4vw, 52px); line-height: 1.05; letter-spacing: -.04em; }
.product-t > p { margin-top: 10px; font-size: 19px; color: var(--grey); line-height: 1.4; }
.facts { display: flex; gap: 28px; margin-top: 26px; flex-wrap: wrap; }
.facts div { display: grid; } .facts b { font-size: 30px; letter-spacing: -.03em; } .facts span { font-size: 14px; color: var(--grey); }
.buy { display: flex; align-items: baseline; gap: 10px; margin-top: 26px; } .buy b { font-size: 34px; letter-spacing: -.03em; } .buy span { color: var(--grey); font-size: 15px; }
.product .ctas { margin-top: 20px; }
.product-art .ten { max-width: 380px; margin: 0 auto; }
.checks { list-style: none; margin: 20px 0 0; padding: 0; display: grid; gap: 10px; }
.checks li { position: relative; padding-left: 28px; font-size: 17px; line-height: 1.4; }
.checks li::before { content: ''; position: absolute; left: 3px; top: 6px; width: 12px; height: 7px; border-left: 2.5px solid var(--c); border-bottom: 2.5px solid var(--c); transform: rotate(-45deg); }
.ask { margin-top: 28px; font-size: 17px; color: var(--grey); } .ask a { color: var(--blue); white-space: nowrap; }
@media (max-width: 860px) { .product { grid-template-columns: minmax(0, 1fr); gap: 36px; } .product-art { order: -1; } .product-art .ten { max-width: 300px; } }

/* how it works */
.how { list-style: none; margin: 64px auto 0; padding: 0; max-width: 980px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 36px; text-align: left; }
.how span { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--c); color: #fff; font-weight: 700; font-size: 19px; }
.how h3 { margin-top: 18px; font-size: 24px; letter-spacing: -.025em; }
.how p { margin-top: 8px; color: var(--grey); font-size: 17px; line-height: 1.45; }
@media (max-width: 760px) { .how { grid-template-columns: minmax(0, 1fr); gap: 32px; } }

/* FAQ */
.faq { margin-top: 48px; text-align: left; border-top: 1px solid var(--hair); }
.faq details { border-bottom: 1px solid var(--hair); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 20px; padding: 22px 0; font-size: 19px; font-weight: 600; letter-spacing: -.02em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; flex: none; font-size: 26px; font-weight: 300; line-height: .9; color: var(--grey); transition: transform .3s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 40px 22px 0; color: var(--grey); font-size: 17px; line-height: 1.5; }

/* ---------- MICRO page ---------- */
.page-hero { padding-top: clamp(64px, 9vw, 112px); }
.page-hero .ten.big { max-width: 520px; margin: 64px auto 0; gap: 12px; }
.page-hero.short { padding-bottom: 48px; }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; margin: 72px auto 0; max-width: 980px; }
.stats div { display: grid; gap: 4px; }
.stats b { font-size: clamp(40px, 5vw, 56px); letter-spacing: -.04em; line-height: 1; color: var(--c); }
.stats span { font-size: 15px; color: var(--grey); line-height: 1.35; }
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 16px; } }
.rows { list-style: none; margin: 56px auto 0; padding: 0; max-width: 900px; text-align: left; display: grid; gap: 10px; }
.rows li { display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 18px; align-items: start; background: #fff; border-radius: 20px; padding: 20px 22px; }
.rows .n { width: 48px; height: 48px; border-radius: 50%; background: var(--c); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 15px; }
.rows li.rev .n { background: var(--c-d); }
.rows h3 { font-size: 19px; line-height: 1.3; letter-spacing: -.02em; }
.rows h3 a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--c); text-underline-offset: 4px; }
.rows .free { display: inline-block; margin-left: 6px; font-size: 12px; font-weight: 700; color: #0f6220; background: #e6f6e9; border-radius: 980px; padding: 3px 9px; vertical-align: 2px; }
.rows .chips { margin-top: 6px; font-size: 15px; color: var(--ink); opacity: .8; }
.rows .meta { margin-top: 4px; font-size: 14px; color: var(--grey); }
.sec.dark { background: #000; color: #f5f5f7; } .sec.dark .lede { color: #a1a1a6; } .sec.dark .kick { color: #ff7a6b; }
.sec.dark .stats span { color: #a1a1a6; } .sec.dark .stats b { color: #ff7a6b; }

/* sample page */
.reader-wrap { padding: 0 0 clamp(72px, 10vw, 120px); }
.device.reader { max-width: none; margin-top: 0; }
.device.reader .device-screen { height: min(86vh, 980px); }

/* footer */
.ftr { background: var(--alt); border-top: 1px solid rgba(0,0,0,.06); padding: 40px 0 28px; font-size: 13px; color: var(--grey); }
.ftr-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.ftr-cols div { display: grid; gap: 8px; align-content: start; }
.ftr-cols b { color: var(--ink); font-weight: 600; }
.ftr-cols a:hover { color: var(--ink); text-decoration: underline; }
.ftr-legal { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--hair); }
.mk.sm { display: inline-grid; width: 16px; height: 16px; border-radius: 5px; font-size: 10px; vertical-align: -3px; margin-right: 4px; }
@media (max-width: 560px) { .ftr-cols { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }