:root {
  --deep: #063c33;
  --deep-2: #042d27;
  --teal: #008f87;
  --aqua: #67ddd2;
  --ivory: #f6f0e5;
  --paper: #fffaf1;
  --charcoal: #1d2a27;
  --gold: #e4a11b;
  --gold-soft: #f5ddb0;
  --muted: #49645e;
  --line: #c7d2cd;
  --white-line: rgba(255,255,255,.16);
  --heading: "Barlow Condensed", sans-serif;
  --body: "IBM Plex Sans", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ivory); color: var(--charcoal); font-family: var(--body); font-size: 18px; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }
[hidden] { display: none !important; }

.skip-link { position: fixed; z-index: 2000; left: 16px; top: -100px; padding: 12px 18px; border-radius: 10px; background: #fff; color: var(--deep); font-weight: 800; }
.skip-link:focus { top: 16px; }
.mobile-bar, .mobile-menu { display: none; }

.timeback-shell { display: grid; grid-template-columns: 230px minmax(0, 1fr) 340px; height: 100dvh; overflow: hidden; }
.story-main { min-width: 0; height: 100dvh; overflow-x: hidden; overflow-y: auto; overscroll-behavior: contain; background: var(--ivory); scroll-behavior: smooth; scrollbar-color: var(--teal) var(--ivory); }
.story-rail { min-width: 0; height: 100dvh; overflow-x: hidden; overflow-y: auto; overscroll-behavior: contain; background: var(--deep); color: #fff; }
.story-rail-left { border-right: 1px solid var(--white-line); }
.story-rail-right { border-left: 1px solid var(--white-line); }
.rail-inner { min-height: 100%; padding: 30px 24px; }
.rail-logo { display: block; width: 52px; border-radius: 12px; }
.rail-logo img { width: 100%; }
.rail-kicker { margin: 40px 0 14px; color: var(--aqua); font: 800 18px/1 var(--heading); letter-spacing: .08em; text-transform: uppercase; }
.story-progress { display: grid; }
.story-progress a { position: relative; display: grid; grid-template-columns: 30px 1fr; align-items: center; min-height: 47px; border-bottom: 1px solid var(--white-line); color: rgba(255,255,255,.64); text-decoration: none; }
.story-progress a::before { content: ""; position: absolute; left: -24px; width: 4px; height: 0; border-radius: 0 6px 6px 0; background: var(--aqua); transition: height .2s ease; }
.story-progress a[aria-current="step"] { color: #fff; }
.story-progress a[aria-current="step"]::before { height: 28px; }
.story-progress span { color: var(--gold); font: 800 13px/1 var(--heading); }
.story-progress strong { font: 700 17px/1 var(--heading); }
.rail-offer { margin-top: 30px; padding: 19px; border: 1px solid rgba(103,221,210,.32); border-radius: 20px 20px 7px 20px; background: rgba(0,0,0,.12); }
.rail-offer > span { color: var(--aqua); font: 800 12px/1 var(--heading); letter-spacing: .08em; }
.rail-offer > strong { display: block; margin-top: 8px; color: #fff; font: 800 38px/.9 var(--heading); }
.rail-offer p { margin: 11px 0 15px; color: rgba(255,255,255,.7); font-size: 13px; line-height: 1.55; }
.rail-offer a, .rail-cta { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; padding: 10px 14px; border-radius: 999px; background: var(--aqua); color: var(--deep); font: 800 16px/1 var(--heading); text-decoration: none; }

.story-scene { position: relative; padding: clamp(54px, 6vw, 90px) clamp(34px, 5vw, 78px); border-bottom: 1px solid var(--line); scroll-margin-top: 0; }
.hero-scene { min-height: 100dvh; display: flex; flex-direction: column; justify-content: center; padding-top: 48px; padding-bottom: 44px; }
.eyebrow { margin: 0 0 16px; color: var(--teal); font: 800 17px/1.1 var(--heading); letter-spacing: .09em; text-transform: uppercase; }
.section-head { max-width: 950px; margin-bottom: 34px; }
.section-head h2, .about-layout h2 { max-width: 900px; margin: 0; color: var(--deep); font: 800 clamp(54px, 5.4vw, 86px)/.92 var(--heading); letter-spacing: -.02em; text-wrap: balance; }
.section-head > p:last-child { max-width: 800px; margin: 20px 0 0; color: var(--muted); font-size: 20px; line-height: 1.5; }
.compact-head { margin-bottom: 28px; }

.hero-layout { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(290px, .92fr); column-gap: clamp(25px, 3vw, 40px); row-gap: 15px; align-items: center; }
.hero-copy { display: contents; }
.hero-copy > .eyebrow { grid-column: 1 / -1; grid-row: 1; }
.hero-copy h1 { grid-column: 1 / -1; grid-row: 2; }
.hero-copy .hero-deck { grid-column: 1; grid-row: 3; }
.hero-copy .promise-list { grid-column: 1; grid-row: 4; }
.hero-copy .hero-actions { grid-column: 1; grid-row: 5; }
.hero-copy h1 { max-width: 850px; margin: 0; color: var(--deep); font: 800 clamp(64px, 6.2vw, 104px)/.86 var(--heading); letter-spacing: -.025em; text-wrap: balance; }
.hero-deck { max-width: 720px; margin: 24px 0 0; color: var(--muted); font-size: 21px; line-height: 1.48; }
.promise-list { display: flex; flex-wrap: wrap; gap: 9px; margin: 23px 0 0; padding: 0; list-style: none; }
.promise-list li { min-height: 36px; padding: 8px 12px; border: 1px solid #a9c0ba; border-radius: 999px; background: rgba(255,255,255,.44); color: var(--deep); font-size: 14px; font-weight: 700; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.primary-button, .quiet-button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; padding: 13px 20px; border: 1px solid var(--deep); border-radius: 999px; font: 800 18px/1 var(--heading); text-decoration: none; cursor: pointer; }
.primary-button { background: var(--deep); color: #fff; box-shadow: 0 12px 25px rgba(6,60,51,.14); }
.quiet-button { background: transparent; color: var(--deep); }
.primary-button:hover, .primary-button:focus-visible { background: var(--teal); border-color: var(--teal); }
.quiet-button:hover, .quiet-button:focus-visible { background: #fff; }
.primary-button:focus-visible, .quiet-button:focus-visible, button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }

.hero-outcome { grid-column: 2; grid-row: 3 / 6; margin: 0; border: 1px solid var(--line); border-radius: 30px 30px 10px 30px; overflow: hidden; background: var(--paper); box-shadow: 0 24px 55px rgba(29,42,39,.14); transform: rotate(.5deg); }
.outcome-caption { display: grid; gap: 4px; padding: 17px 20px; background: var(--deep); color: #fff; }
.outcome-caption span { color: var(--aqua); font: 800 12px/1 var(--heading); letter-spacing: .09em; }
.outcome-caption strong { font: 700 22px/1 var(--heading); }
.hero-outcome img { display: block; width: 100%; height: auto; object-fit: contain; background: #f5efe2; }
.hero-outcome figcaption { display: grid; grid-template-columns: auto 1fr; gap: 10px; padding: 14px 18px 17px; color: var(--muted); font-size: 14px; line-height: 1.35; }
.hero-outcome figcaption b { color: var(--deep); }
.proof-strip { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: clamp(30px, 4vw, 50px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.proof-strip article { display: grid; grid-template-columns: auto 1fr; gap: 13px; align-items: center; min-height: 84px; padding: 13px 18px; }
.proof-strip article + article { border-left: 1px solid var(--line); }
.proof-strip strong { color: var(--teal); font: 800 36px/.9 var(--heading); white-space: nowrap; }
.proof-strip span { color: var(--muted); font-size: 14px; line-height: 1.35; }

.artifact-player { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(250px, .65fr); overflow: hidden; border: 1px solid var(--line); border-radius: 30px 30px 10px 30px; background: var(--paper); box-shadow: 0 20px 50px rgba(29,42,39,.1); }
.artifact-stage { min-width: 0; padding: 24px; background: #e9eee8; }
.artifact-stage-head { display: flex; gap: 14px; align-items: center; margin-bottom: 17px; }
.artifact-stage-head span { color: var(--teal); font: 800 16px/1 var(--heading); }
.artifact-stage-head strong { color: var(--deep); font: 800 26px/1 var(--heading); }
.artifact-stage figure { margin: 0; overflow: hidden; border-radius: 18px 18px 7px 18px; background: #fff; box-shadow: 0 13px 32px rgba(29,42,39,.12); }
.artifact-stage img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.artifact-stage figcaption { min-height: 76px; padding: 15px 18px; color: var(--muted); font-size: 15px; line-height: 1.45; }
.artifact-guide { display: flex; min-width: 0; flex-direction: column; padding: 24px; background: var(--deep); color: #fff; }
.guide-label { margin: 0 0 18px; color: var(--aqua); font: 800 13px/1 var(--heading); letter-spacing: .08em; }
.artifact-guide ol { display: grid; margin: 0; padding: 0; list-style: none; }
.artifact-guide li { border-bottom: 1px solid var(--white-line); }
.artifact-guide li:first-child { border-top: 1px solid var(--white-line); }
.artifact-guide button { display: grid; grid-template-columns: 33px 1fr; width: 100%; min-height: 73px; padding: 13px 0; border: 0; background: transparent; color: rgba(255,255,255,.58); text-align: left; cursor: pointer; }
.artifact-guide button span { grid-row: 1 / 3; color: var(--gold); font: 800 13px/1 var(--heading); padding-top: 3px; }
.artifact-guide button b { font: 700 20px/1 var(--heading); }
.artifact-guide button small { margin-top: 5px; font-size: 12px; }
.artifact-guide li.is-active button { color: #fff; }
.artifact-guide li.is-active button b { color: var(--aqua); }
.player-controls, .lab-controls, .quiz-controls { display: grid; grid-template-columns: auto 1fr auto; gap: 11px; align-items: center; margin-top: auto; padding-top: 20px; }
.player-controls button, .lab-controls button, .quiz-controls button { min-height: 46px; padding: 10px 14px; border: 1px solid currentColor; border-radius: 999px; background: transparent; color: inherit; font: 800 16px/1 var(--heading); cursor: pointer; }
.player-controls button:disabled, .lab-controls button:disabled, .quiz-controls button:disabled { opacity: .38; cursor: not-allowed; }
.player-controls p, .quiz-controls p { margin: 0; text-align: center; font-size: 13px; }
.artifact-guide .player-controls { grid-template-columns: 1fr; }
.artifact-guide .player-controls p { grid-column: 1; grid-row: auto; order: 1; }
.artifact-guide .player-controls button { display: flex; align-items: center; justify-content: center; grid-template-columns: none; padding: 13px 20px; text-align: center; line-height: 1.15; }
.artifact-guide .player-controls [data-artifact-next] { order: 2; width: 100%; border-color: var(--aqua); background: var(--aqua); color: var(--deep); }
.artifact-guide .player-controls [data-artifact-prev] { order: 3; width: 100%; }
.human-line { display: flex; gap: 13px; justify-content: center; margin: 22px 0 0; padding: 19px; border-radius: 15px; background: var(--gold-soft); color: var(--deep); font: 700 25px/1 var(--heading); }
.human-line strong { color: var(--teal); }

.lab-player { overflow: hidden; border: 1px solid var(--line); border-radius: 28px 28px 9px 28px; background: var(--paper); box-shadow: 0 18px 45px rgba(29,42,39,.08); }
.lab-progress { height: 9px; background: #dbe3df; }
.lab-progress span { display: block; width: var(--progress); height: 100%; border-radius: 0 999px 999px 0; background: var(--teal); transition: width .25s ease; }
.lab-stage { display: grid; grid-template-columns: minmax(0, .85fr) minmax(360px, 1.15fr); min-height: 470px; }
.lab-stage-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(28px, 4vw, 50px); }
.lab-stage-copy > span { color: var(--teal); font: 800 14px/1 var(--heading); letter-spacing: .08em; text-transform: uppercase; }
.lab-stage-copy > p[data-lab-count] { margin: 13px 0 0; color: var(--gold); font: 800 18px/1 var(--heading); }
.lab-stage-copy h3 { margin: 15px 0 0; color: var(--deep); font: 800 clamp(42px, 4vw, 62px)/.93 var(--heading); }
.lab-stage-copy > p[data-lab-copy] { margin: 18px 0 0; color: var(--muted); line-height: 1.55; }
.lab-takeaway { margin-top: 24px; padding: 16px; border-left: 5px solid var(--gold); background: var(--ivory); }
.lab-takeaway small { display: block; color: var(--teal); font: 800 12px/1 var(--heading); letter-spacing: .08em; }
.lab-takeaway strong { display: block; margin-top: 7px; color: var(--deep); font-size: 15px; line-height: 1.45; }
.lab-stage-visual { display: flex; align-items: center; justify-content: center; min-width: 0; padding: 28px; background: var(--deep); }
.lab-stage-visual img { width: 100%; max-height: 410px; object-fit: contain; border-radius: 18px 18px 7px 18px; box-shadow: 0 18px 36px rgba(0,0,0,.25); }
.lab-controls { margin: 0; padding: 16px 22px; border-top: 1px solid var(--line); color: var(--deep); }
.lab-controls > div { display: flex; justify-content: center; gap: 8px; }
.lab-controls b { width: 9px; height: 9px; border-radius: 99px; background: #c5d0cc; }
.lab-controls b.is-current { width: 28px; background: var(--teal); }
.five-part-setup { display: grid; grid-template-columns: .7fr 1.3fr; gap: 28px; margin-top: 30px; padding: clamp(28px, 4vw, 45px); border-radius: 28px 28px 8px 28px; background: var(--deep); color: #fff; }
.five-part-intro h3 { margin: 0; font: 800 44px/.95 var(--heading); }
.five-part-intro > p:last-child { color: rgba(255,255,255,.7); line-height: 1.5; }
.five-part-setup dl { display: grid; gap: 8px; margin: 0; }
.five-part-setup dl > div { display: grid; grid-template-columns: 150px 1fr; gap: 15px; padding: 13px 0; border-bottom: 1px solid var(--white-line); }
.five-part-setup dt { color: var(--aqua); font: 800 19px/1 var(--heading); }
.five-part-setup dd { margin: 0; color: rgba(255,255,255,.85); font-size: 15px; line-height: 1.45; }
.boundary-sentence { grid-column: 1 / -1; margin: 0; padding: 18px; border: 1px solid rgba(228,161,27,.55); border-radius: 14px; background: rgba(228,161,27,.11); line-height: 1.5; }
.boundary-sentence span { display: block; margin-bottom: 7px; color: var(--gold); font: 800 13px/1 var(--heading); letter-spacing: .08em; }

.quiz-shell { overflow: hidden; border: 1px solid var(--line); border-radius: 28px 28px 8px 28px; background: var(--paper); box-shadow: 0 18px 45px rgba(29,42,39,.08); }
.quiz-topline { display: flex; align-items: center; justify-content: space-between; padding: 16px 23px; border-bottom: 1px solid var(--line); }
.quiz-topline strong { color: var(--teal); font: 800 16px/1 var(--heading); letter-spacing: .06em; }
.quiz-topline > span { color: var(--muted); font-size: 14px; font-weight: 700; }
.quiz-question { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .85fr); min-height: 500px; }
.quiz-copy { padding: clamp(28px, 4vw, 46px); }
.quiz-copy h3 { margin: 0; color: var(--deep); font: 800 clamp(38px, 3.8vw, 56px)/.96 var(--heading); }
.answer-list { display: grid; gap: 11px; margin-top: 26px; }
.answer-list button { position: relative; min-height: 58px; padding: 13px 46px 13px 16px; border: 1px solid #aebdb8; border-radius: 13px; background: #fff; color: var(--deep); font-size: 16px; font-weight: 700; line-height: 1.35; text-align: left; cursor: pointer; }
.answer-list button::after { content: "Choose"; position: absolute; right: 13px; top: 50%; color: var(--muted); font-size: 11px; transform: translateY(-50%); }
.answer-list button:hover { border-color: var(--teal); background: #f0fbf8; }
.answer-list button.is-correct { border: 2px solid var(--teal); background: #e7f7f3; }
.answer-list button.is-correct::after { content: "Safer"; color: var(--teal); font-weight: 800; }
.answer-list button.is-retry { border: 2px solid var(--gold); background: #fff7e7; }
.answer-list button.is-retry::after { content: "Consider"; color: #8a5c00; font-weight: 800; }
.answer-feedback { margin: 16px 0 0; padding: 14px 16px; border-left: 5px solid var(--gold); background: #fff7e7; color: #604817; font-size: 15px; line-height: 1.45; }
.quiz-question.is-resolved .answer-feedback { border-color: var(--teal); background: #e7f7f3; color: var(--deep); }
.quiz-visual { position: relative; display: flex; flex-direction: column; justify-content: center; gap: 18px; overflow: hidden; padding: 36px; background: #e5ebe7; }
.visual-before, .missing-line { display: grid; gap: 9px; padding: 24px; border: 1px solid #9cafaa; border-radius: 20px 20px 7px 20px; background: #fff; }
.visual-before span, .missing-line span, .visual-answer span { color: var(--teal); font: 800 13px/1 var(--heading); letter-spacing: .08em; }
.visual-before b, .missing-line b, .visual-answer b { color: var(--deep); font: 800 29px/1 var(--heading); }
.visual-before small, .visual-answer small { color: var(--muted); font-size: 14px; line-height: 1.4; }
.visual-answer { display: grid; gap: 9px; padding: 24px; border: 2px solid var(--teal); border-radius: 7px 20px 20px 20px; background: #e7f7f3; opacity: .12; transform: translateY(12px); transition: opacity .25s ease, transform .25s ease; }
.quiz-question.is-resolved .visual-answer { opacity: 1; transform: none; }
.detail-cluster { display: flex; flex-wrap: wrap; gap: 9px; align-content: center; }
.detail-cluster span { padding: 9px 12px; border: 1px solid #8d9d98; border-radius: 999px; background: #fff; color: var(--deep); font-size: 14px; font-weight: 700; }
.review-list { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.review-list span { padding: 15px 12px; border-radius: 12px; background: #fff; color: var(--deep); font-weight: 700; }
.quiz-controls { margin: 0; padding: 16px 22px; border-top: 1px solid var(--line); color: var(--deep); }

.delivery-path { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.delivery-path article { padding: 24px; }
.delivery-path article + article { border-left: 1px solid var(--line); }
.delivery-path span { color: var(--teal); font: 800 14px/1 var(--heading); letter-spacing: .08em; }
.delivery-path h3 { margin: 13px 0 9px; color: var(--deep); font: 800 30px/1 var(--heading); }
.delivery-path p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.5; }
.prepared-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 27px; }
.prepared-grid > div { padding: 23px; border: 1px solid var(--line); border-radius: 20px 20px 7px 20px; background: rgba(255,255,255,.45); }
.prepared-grid ul { margin: 0; padding-left: 20px; color: var(--muted); font-size: 15px; line-height: 1.55; }
.prepared-grid li + li { margin-top: 7px; }
.prepared-grid li::marker { color: var(--teal); }
.no-prep { display: block; margin-top: 17px; padding-top: 15px; border-top: 1px solid var(--line); color: var(--deep); font-size: 14px; line-height: 1.4; }

.pilot-scene { background: var(--deep); color: #fff; }
.pilot-scene .section-head h2 { color: #fff; }
.pilot-scene .section-head > p:last-child { color: rgba(255,255,255,.7); }
.pilot-contract { display: grid; grid-template-columns: .85fr 1.15fr; gap: 26px; align-items: start; padding: clamp(28px, 4vw, 44px); border: 1px solid rgba(255,255,255,.2); border-radius: 30px 30px 8px 30px; background: rgba(0,0,0,.11); }
.pilot-price span, .pilot-option span { color: var(--aqua); font: 800 13px/1 var(--heading); letter-spacing: .08em; }
.pilot-price strong { display: block; margin-top: 12px; color: #fff; font: 800 clamp(68px, 7vw, 104px)/.82 var(--heading); }
.pilot-price p { margin: 14px 0 0; color: rgba(255,255,255,.67); }
.pilot-includes h3 { margin: 0; color: #fff; font: 800 36px/1 var(--heading); }
.pilot-includes ul { margin: 18px 0 0; padding-left: 20px; color: rgba(255,255,255,.78); line-height: 1.6; }
.pilot-includes li::marker { color: var(--gold); }
.pilot-option { display: flex; gap: 13px; align-items: center; padding: 17px; border-radius: 13px; background: rgba(255,255,255,.08); }
.pilot-option strong { flex: 1; font-size: 15px; }
.pilot-option b { color: var(--gold); font: 800 26px/1 var(--heading); }
.pilot-contract > .primary-button { justify-self: end; background: var(--aqua); border-color: var(--aqua); color: var(--deep); }
.credibility-line { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; margin-top: 23px; color: rgba(255,255,255,.67); font-size: 14px; }
.credibility-line p { margin: 0; }
.credibility-line strong { color: #fff; }
.credibility-line a { color: var(--aqua); font-weight: 800; }

.about-layout { display: grid; grid-template-columns: minmax(230px, .65fr) minmax(0, 1.35fr); gap: clamp(32px, 5vw, 70px); align-items: center; }
.about-layout figure { margin: 0; overflow: hidden; border-radius: 30px 30px 8px 30px; background: #fff; box-shadow: 0 22px 45px rgba(29,42,39,.12); transform: rotate(-1deg); }
.about-layout figure img { width: 100%; aspect-ratio: 4 / 4.6; object-fit: cover; object-position: center top; }
.about-layout figcaption { padding: 15px 18px; color: var(--deep); font: 800 23px/1 var(--heading); }
.about-layout figcaption span { color: var(--muted); font: 500 14px/1 var(--body); }
.about-layout > div > p:not(.eyebrow) { max-width: 760px; color: var(--muted); line-height: 1.55; }
.about-layout .quiet-button { margin-top: 7px; }

.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 22px 52px 22px 0; color: var(--deep); font: 800 26px/1.12 var(--heading); cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 10px; top: 50%; color: var(--teal); font: 500 32px/1 var(--body); transform: translateY(-50%); }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 850px; margin: -4px 0 24px; color: var(--muted); line-height: 1.58; }
.sources-panel { margin-top: 28px; border: 1px solid var(--line); border-radius: 15px; background: rgba(255,255,255,.43); }
.sources-panel summary { padding: 16px 19px; color: var(--deep); font-weight: 800; cursor: pointer; }
.sources-panel div { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 24px; padding: 0 19px 18px; }
.sources-panel p { margin: 0; font-size: 14px; }
.sources-panel a { color: var(--deep); }

.contact-layout { display: grid; grid-template-columns: minmax(250px, .7fr) minmax(420px, 1.3fr); gap: 24px; align-items: start; }
.contact-aside { padding: 29px; border-radius: 25px 25px 7px 25px; background: var(--deep); color: #fff; }
.contact-aside > span { color: var(--aqua); font: 800 14px/1 var(--heading); letter-spacing: .08em; }
.contact-aside ol { display: grid; gap: 11px; margin: 23px 0; padding-left: 23px; }
.contact-aside li::marker { color: var(--gold); font-weight: 800; }
.contact-aside p { color: rgba(255,255,255,.68); font-size: 15px; }
.contact-aside a { color: var(--aqua); font-weight: 800; }
.contact-form { display: grid; gap: 17px; padding: 28px; border: 1px solid var(--line); border-radius: 25px; background: #fff; }
.contact-form .honeypot { position: absolute; left: -9999px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.contact-form label, .contact-form label > span { display: block; }
.contact-form label > span { margin-bottom: 7px; color: var(--deep); font-size: 16px; font-weight: 800; }
.contact-form input, .contact-form textarea { width: 100%; min-height: 54px; padding: 12px 14px; border: 1px solid #708b84; border-radius: 11px; background: #fffdf8; color: var(--charcoal); font-size: 17px; }
.contact-form textarea { min-height: 135px; resize: vertical; }
.contact-form input:focus, .contact-form textarea:focus { outline: 3px solid rgba(0,143,135,.25); border-color: var(--teal); }
.contact-form textarea::placeholder { color: #5f746f; opacity: 1; }
.contact-form .primary-button { justify-self: start; border: 0; }
.form-note { margin: 0; color: var(--muted); font-size: 14px; }
.timeback-footer { display: flex; justify-content: space-between; gap: 20px; padding: 25px clamp(24px,5vw,78px); background: var(--charcoal); color: rgba(255,255,255,.65); font-size: 14px; }
.timeback-footer a { color: #fff; }

.context-rail { position: relative; min-height: 100%; padding: 0; }
.context-panel { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center; padding: 34px 30px; opacity: 0; transform: translateX(14px); pointer-events: none; transition: opacity .25s ease, transform .25s ease; }
.timeback-shell[data-scene="0"] [data-context-panel="0"], .timeback-shell[data-scene="1"] [data-context-panel="1"], .timeback-shell[data-scene="2"] [data-context-panel="2"], .timeback-shell[data-scene="3"] [data-context-panel="3"], .timeback-shell[data-scene="4"] [data-context-panel="4"], .timeback-shell[data-scene="5"] [data-context-panel="5"], .timeback-shell[data-scene="6"] [data-context-panel="6"], .timeback-shell[data-scene="7"] [data-context-panel="7"], .timeback-shell[data-scene="8"] [data-context-panel="8"] { opacity: 1; transform: none; pointer-events: auto; }
.context-label { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; color: var(--aqua); font: 800 14px/1 var(--heading); letter-spacing: .06em; }
.context-label b { color: var(--gold); }
.context-panel h2 { margin: 22px 0 0; color: #fff; font: 800 clamp(38px, 3.2vw, 50px)/.94 var(--heading); }
.context-panel > p { color: rgba(255,255,255,.68); font-size: 16px; line-height: 1.5; }
.context-panel > a:not(.rail-cta) { color: var(--aqua); font-weight: 800; }
.context-art { width: 100%; max-height: 255px; border-radius: 20px 20px 7px 20px; object-fit: cover; box-shadow: 0 16px 32px rgba(0,0,0,.25); }
.context-art-hero { max-height: 230px; }
.context-key { display: grid; gap: 7px; margin-top: 13px; padding: 17px; border: 1px solid rgba(103,221,210,.32); border-radius: 15px; }
.context-key span { color: var(--aqua); font: 800 12px/1 var(--heading); letter-spacing: .08em; }
.context-key strong { color: #fff; font-size: 14px; line-height: 1.4; }
.context-step-number { color: var(--gold); font: 800 110px/.8 var(--heading); }
.context-timing { display: grid; gap: 8px; margin-top: 18px; }
.context-timing span, .context-timing strong { padding: 12px 14px; border: 1px solid var(--white-line); border-radius: 11px; }
.context-timing strong { border-color: var(--aqua); color: var(--aqua); }
.context-safety-state { display: grid; gap: 8px; padding: 20px; border: 1px solid rgba(103,221,210,.35); border-radius: 20px 20px 7px 20px; }
.context-safety-state span { color: var(--aqua); font: 800 13px/1 var(--heading); }
.context-safety-state strong { color: #fff; font: 800 28px/1 var(--heading); }
.context-checks, .context-big-list { display: grid; gap: 7px; margin-top: 14px; }
.context-checks span, .context-big-list span { position: relative; padding: 12px 34px 12px 13px; border-bottom: 1px solid var(--white-line); color: rgba(255,255,255,.68); font-size: 14px; }
.context-checks span::after { content: ""; position: absolute; right: 10px; top: 50%; width: 12px; height: 12px; border: 1px solid rgba(255,255,255,.38); border-radius: 50%; transform: translateY(-50%); }
.context-checks span.is-complete { color: #fff; }
.context-checks span.is-complete::after { border-color: var(--aqua); background: var(--aqua); box-shadow: inset 0 0 0 3px var(--deep); }
.context-big-list span { padding-left: 0; color: #fff; font: 700 23px/1 var(--heading); }
.context-price { display: grid; gap: 7px; padding: 25px; border-radius: 22px 22px 7px 22px; background: rgba(255,255,255,.07); }
.context-price small { color: var(--aqua); font: 800 13px/1 var(--heading); letter-spacing: .08em; }
.context-price strong { color: #fff; font: 800 76px/.85 var(--heading); }
.context-price span { color: rgba(255,255,255,.68); }
.context-portrait { width: 180px; height: 210px; border-radius: 85px 85px 18px 18px; object-fit: cover; object-position: center top; }
.music-note { position: fixed; z-index: 3000; pointer-events: none; font: 800 23px/1 var(--heading); animation: note-burst .65s ease-out forwards; }
@keyframes note-burst { to { opacity: 0; transform: translate(var(--note-x), var(--note-y)) rotate(var(--note-r)) scale(.45); } }

@media (max-width: 1199px) {
  .timeback-shell { grid-template-columns: 220px minmax(0, 1fr); }
  .story-rail-right { display: none; }
  .hero-copy h1 { font-size: clamp(62px, 7.6vw, 90px); }
  .section-head h2, .about-layout h2 { font-size: clamp(52px, 6.5vw, 76px); }
}

@media (max-width: 820px) {
  html { scroll-padding-top: 72px; }
  body { overflow: auto; }
  .mobile-bar { position: sticky; z-index: 1000; top: 0; display: grid; grid-template-columns: 42px 1fr auto; gap: 12px; align-items: center; width: 100%; min-height: 70px; padding: 10px 16px; border: 0; border-bottom: 1px solid rgba(255,255,255,.2); background: rgba(6,60,51,.97); color: #fff; text-align: left; }
  .mobile-bar img { width: 42px; }
  .mobile-bar span { font: 800 20px/1 var(--heading); }
  .mobile-bar b { padding: 9px 12px; border: 1px solid rgba(255,255,255,.35); border-radius: 999px; font-size: 13px; }
  .mobile-menu { position: fixed; z-index: 1200; inset: 0; padding: 24px; overflow: auto; background: var(--deep); color: #fff; }
  .mobile-menu:not([hidden]) { display: block; }
  .mobile-menu-head { display: flex; justify-content: space-between; align-items: center; }
  .mobile-menu-head strong { color: var(--aqua); font: 800 22px/1 var(--heading); }
  .mobile-menu-head button { min-height: 44px; padding: 10px 14px; border: 1px solid rgba(255,255,255,.35); border-radius: 999px; background: transparent; color: #fff; font-weight: 800; }
  .mobile-menu nav { display: grid; margin-top: 34px; }
  .mobile-menu nav a { display: grid; grid-template-columns: 38px 1fr; gap: 12px; padding: 18px 0; border-bottom: 1px solid var(--white-line); color: #fff; font: 800 29px/1 var(--heading); text-decoration: none; }
  .mobile-menu nav small { color: var(--gold); font-size: 13px; }
  .mobile-home { display: inline-block; margin-top: 27px; color: var(--aqua); font-weight: 800; }
  .timeback-shell { display: block; height: auto; overflow: visible; }
  .story-rail { display: none; }
  .story-main { height: auto; overflow: visible; }
  .story-scene { padding: 60px 24px; scroll-margin-top: 70px; }
  .hero-scene { min-height: 0; padding-top: 46px; }
  .hero-layout, .artifact-player, .lab-stage, .quiz-question, .about-layout, .contact-layout { grid-template-columns: 1fr; }
  .hero-copy { display: block; }
  .hero-outcome { grid-column: auto; grid-row: auto; margin-top: 28px; }
  .hero-outcome { max-width: 620px; }
  .proof-strip { grid-template-columns: 1fr; }
  .proof-strip article + article { border-left: 0; border-top: 1px solid var(--line); }
  .artifact-guide { min-height: 500px; }
  .lab-stage-visual { min-height: 400px; }
  .five-part-setup { grid-template-columns: 1fr; }
  .five-part-setup dl > div { grid-template-columns: 140px 1fr; }
  .boundary-sentence { grid-column: auto; }
  .quiz-question { min-height: 0; }
  .quiz-visual { min-height: 400px; }
  .delivery-path, .prepared-grid { grid-template-columns: 1fr; }
  .delivery-path article + article { border-left: 0; border-top: 1px solid var(--line); }
  .pilot-contract { grid-template-columns: 1fr; }
  .pilot-contract > .primary-button { justify-self: start; }
  .credibility-line { grid-template-columns: 1fr; }
  .sources-panel div { grid-template-columns: 1fr; }
}

@media (max-width: 540px) {
  body { font-size: 17px; }
  .story-scene { padding: 52px 18px; }
  .eyebrow { font-size: 16px; }
  .hero-copy h1 { font-size: clamp(55px, 15.5vw, 76px); }
  .section-head h2, .about-layout h2 { font-size: clamp(48px, 13.8vw, 65px); }
  .hero-deck, .section-head > p:last-child { font-size: 18px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .primary-button, .quiet-button { width: 100%; }
  .hero-outcome figcaption { grid-template-columns: 1fr; }
  .artifact-stage { padding: 16px; }
  .artifact-stage img { aspect-ratio: 4 / 3; }
  .artifact-guide { min-height: 490px; padding: 20px 18px; }
  .player-controls, .lab-controls, .quiz-controls { grid-template-columns: 1fr 1fr; }
  .player-controls p, .quiz-controls p { grid-column: 1 / -1; grid-row: 1; }
  .human-line { flex-direction: column; align-items: center; font-size: 24px; }
  .lab-stage-copy, .quiz-copy { padding: 27px 18px; }
  .lab-stage-visual, .quiz-visual { min-height: 350px; padding: 22px 18px; }
  .lab-controls > div { grid-column: 1 / -1; grid-row: 1; }
  .five-part-setup { padding: 27px 18px; }
  .five-part-setup dl > div { grid-template-columns: 1fr; }
  .quiz-topline { align-items: flex-start; flex-direction: column; gap: 7px; }
  .quiz-copy h3 { font-size: 40px; }
  .answer-list button { padding-right: 16px; }
  .answer-list button::after { position: static; display: block; margin-top: 7px; transform: none; }
  .review-list { grid-template-columns: 1fr; }
  .prepared-grid > div { padding: 20px 18px; }
  .pilot-contract { padding: 27px 18px; }
  .pilot-price strong { font-size: 74px; }
  .about-layout figure { max-width: 340px; }
  .faq-list summary { font-size: 24px; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 22px 17px; }
  .timeback-footer { flex-direction: column; padding-inline: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html, .story-main { scroll-behavior: auto; }
  .timeback-page *, .timeback-page *::before, .timeback-page *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* AI Schools gallery v2: accessible full-screen examples. */
.ai-zoomable-image{cursor:zoom-in}
.ai-zoomable-image:focus-visible{outline:4px solid var(--gold);outline-offset:4px}
.ai-zoomable-wrap{position:relative}
.ai-image-zoom-hint{position:absolute;z-index:3;right:10px;top:10px;display:inline-flex;align-items:center;min-height:32px;padding:7px 10px;border:1px solid rgba(255,255,255,.62);border-radius:999px;background:rgba(6,60,51,.92);color:#fff;font:700 12px/1.2 var(--heading);box-shadow:0 5px 16px rgba(0,0,0,.18);pointer-events:none}
.ai-image-lightbox{inset:0;width:100%;height:100vh;height:100dvh;max-width:none;max-height:none;margin:0;padding:0;border:0;background:#10251f;color:#fff;overflow:hidden}
.ai-image-lightbox::backdrop{background:rgba(0,0,0,.82)}
.ai-image-lightbox-shell{display:grid;height:100%}
.ai-image-lightbox-scroll{overflow:auto;-webkit-overflow-scrolling:touch;touch-action:pan-y pinch-zoom}
.timeback-page:has(.ai-image-lightbox[open]){overflow:hidden}
/* AI Schools gallery v2: fixed controls, uncropped images, browser-native zoom/pan. */
.ai-gallery-viewer .ai-image-lightbox-shell{grid-template-rows:auto minmax(0,1fr) auto;min-height:0}
.ai-gallery-toolbar{padding:calc(8px + env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) 8px max(12px,env(safe-area-inset-left));background:#063c33;border-bottom:1px solid rgba(255,255,255,.2);display:grid;gap:8px}
.ai-gallery-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}
.ai-gallery-heading>div{min-width:0}.ai-gallery-heading small{display:block;color:#9fece4;font:600 12px/1.3 var(--body)}
.ai-gallery-heading strong{display:block;margin-top:3px;font:700 21px/1.12 var(--heading);color:#fff}
.ai-gallery-viewer button,.ai-gallery-viewer a{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;padding:8px 12px;border:1px solid #75b5aa;border-radius:9px;background:#063c33;color:#fff;font:600 14px/1.2 var(--body);text-decoration:none;cursor:pointer}
.ai-gallery-viewer button:hover,.ai-gallery-viewer a:hover{background:#19594d}
.ai-gallery-viewer button:disabled{opacity:.4;cursor:default}
.ai-gallery-viewer button:focus-visible,.ai-gallery-viewer a:focus-visible,.ai-gallery-viewer [tabindex]:focus-visible{outline:3px solid #e4a11b;outline-offset:2px}
.ai-gallery-viewer [data-image-close]{align-self:flex-start;flex-shrink:0;background:#67ddd2;color:#063c33;border-color:#67ddd2}
.ai-gallery-navigation{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center}
.ai-gallery-navigation [data-image-prev]{justify-self:start}.ai-gallery-navigation [data-image-next]{justify-self:end}
.ai-gallery-navigation [data-image-counter]{font:600 14px/1.2 var(--body);white-space:nowrap;color:#fff}
.ai-gallery-tools{display:flex;align-items:center;justify-content:space-between;gap:10px}.ai-gallery-tools>div{display:flex;gap:6px}
.ai-gallery-tools [data-image-zoom-reset]{min-width:66px}.ai-gallery-tools a{color:#9fece4}
.ai-gallery-viewer .ai-image-lightbox-scroll{min-width:0;min-height:0;padding:12px;overscroll-behavior:contain;scroll-behavior:auto}
.ai-gallery-canvas{display:grid;place-items:center;min-width:100%;min-height:100%;width:max-content}
.ai-gallery-viewer .ai-gallery-canvas img{width:auto;height:auto;max-width:none;max-height:none;aspect-ratio:auto;object-fit:contain;margin:0;user-select:none;-webkit-user-drag:none}
.ai-gallery-footer{padding:9px max(12px,env(safe-area-inset-right)) calc(10px + env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left));background:#063c33;border-top:1px solid rgba(255,255,255,.2)}
.ai-gallery-footer p{margin:0;color:#fff;font:400 13px/1.4 var(--body)}.ai-gallery-footer small{display:block;margin-top:6px;color:#9fece4;font:500 12px/1.3 var(--body)}
.ai-gallery-viewer [data-image-error]{color:#fff;font:400 16px/1.5 var(--body)}
@media(min-width:821px){.ai-gallery-toolbar{grid-template-columns:1fr auto;column-gap:28px}.ai-gallery-heading{grid-column:1/-1}.ai-gallery-navigation{min-width:340px}.ai-gallery-tools{justify-content:flex-end}.ai-gallery-footer{display:flex;justify-content:space-between;gap:24px}.ai-gallery-footer small{flex-shrink:0}.ai-gallery-footer p{max-width:100ch}}
@media(max-height:500px){.ai-gallery-toolbar{grid-template-columns:1fr 1fr;gap:5px 12px}.ai-gallery-heading{grid-column:1/-1}.ai-gallery-heading strong{font-size:17px}.ai-gallery-heading small{font-size:10px}.ai-gallery-navigation{gap:5px}.ai-gallery-viewer button,.ai-gallery-viewer a{font-size:12px;padding:6px;min-height:44px}.ai-gallery-footer p{display:none}.ai-gallery-footer small{margin-top:0}}

@media(max-width:360px){.ai-gallery-tools{gap:6px}.ai-gallery-tools>div{flex-shrink:0}.ai-gallery-tools [data-image-zoom-reset]{min-width:54px;padding:8px}.ai-gallery-tools a{font-size:12px;padding:8px}.ai-image-zoom-hint{font-size:11px}}