:root {
  --ink: #071b1d;
  --muted: #536263;
  --teal: #0d8588;
  --teal-dark: #075f62;
  --teal-soft: #dcefee;
  --paper: #f4f1ea;
  --white: #fff;
  --line: rgba(7, 27, 29, 0.14);
  --accent: #c86f52;
  --radius: 1.65rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "DM Sans", sans-serif; }
button, input { font: inherit; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }

.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: .8rem 1rem; background: var(--ink); color: white; border-radius: .6rem; }
.skip-link:focus { top: 1rem; }
.site-header { min-height: 6.4rem; padding: 1.35rem clamp(1rem, 5vw, 5.5rem); display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); background: rgba(244, 241, 234, .94); }
.brand { display: inline-flex; align-items: center; gap: .8rem; text-decoration: none; }
.brand-mark { width: 2.7rem; height: 2.7rem; border-radius: 50%; display: grid; place-items: center; color: white; background: var(--teal); font: 700 .8rem/1 "Manrope", sans-serif; }
.brand span:last-child { display: grid; gap: .15rem; }
.brand strong { font: 700 .98rem/1.1 "Manrope", sans-serif; }
.brand small { color: var(--muted); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }
.header-link { min-height: 2.8rem; display: inline-flex; align-items: center; padding: 0 1.1rem; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; font-weight: 700; }

main { width: min(1240px, calc(100% - 2rem)); margin: auto; }
.hero { min-height: 25rem; display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(18rem, .7fr); align-items: end; gap: 3rem; padding: clamp(4rem, 8vw, 7rem) 0 4rem; border-bottom: 1px solid var(--line); }
.eyebrow { margin: 0 0 1.7rem; display: flex; align-items: center; gap: .75rem; color: var(--teal-dark); font: 700 .76rem/1 "Manrope", sans-serif; letter-spacing: .18em; }
.eyebrow span { width: 2.2rem; height: 1px; background: currentColor; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin: 0; max-width: 12ch; font: 700 clamp(3.2rem, 7vw, 6.6rem)/.88 "Manrope", sans-serif; letter-spacing: -.065em; }
h1 em { color: var(--teal); font-family: Georgia, serif; font-weight: 400; }
.hero > p { max-width: 23rem; margin: 0 0 .8rem; color: var(--muted); font-size: clamp(1.05rem, 1.5vw, 1.25rem); line-height: 1.6; }

.daily-route { position: relative; overflow: hidden; margin: 4rem 0 2rem; min-height: 22rem; padding: clamp(1.5rem, 4vw, 3.5rem); display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2rem; align-items: end; color: white; border-radius: calc(var(--radius) + .5rem); background: var(--teal-dark); }
.daily-route::after { content: ""; position: absolute; width: 26rem; height: 26rem; right: -7rem; top: -11rem; border: 1px solid rgba(255,255,255,.24); border-radius: 50%; box-shadow: 0 0 0 4rem rgba(255,255,255,.04), 0 0 0 8rem rgba(255,255,255,.035); pointer-events: none; }
.daily-copy, .daily-actions { position: relative; z-index: 1; }
.daily-copy small, .resume-card small, .library-heading small, .route-preview small, .step-kicker, .complete-kicker { display: block; margin-bottom: 1rem; font: 700 .75rem/1 "Manrope", sans-serif; letter-spacing: .16em; text-transform: uppercase; }
.daily-copy h2 { margin-bottom: 1rem; max-width: 13ch; font: 700 clamp(2.4rem, 5vw, 4.8rem)/.95 "Manrope", sans-serif; letter-spacing: -.05em; }
.daily-copy > p { max-width: 43rem; margin-bottom: 1.5rem; color: rgba(255,255,255,.78); font-size: 1.05rem; line-height: 1.55; }
.route-meta { display: flex; flex-wrap: wrap; gap: .65rem; }
.route-meta span { padding: .52rem .8rem; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; font-size: .86rem; }
.route-dots, .progress-dots { display: flex; gap: .42rem; margin-top: 1.5rem; }
.route-dots i, .progress-dots i { display: block; width: .52rem; height: .52rem; border-radius: 50%; background: rgba(255,255,255,.34); }
.route-dots i:first-child { background: white; }
.daily-actions { min-width: 15rem; display: grid; justify-items: stretch; gap: .75rem; }
.primary-button, .daily-actions .text-button, .resume-card a { min-height: 3.25rem; display: inline-flex; align-items: center; justify-content: center; gap: .7rem; padding: 0 1.15rem; border: 0; border-radius: 999px; cursor: pointer; font-weight: 700; text-decoration: none; }
.primary-button { color: white; background: var(--ink); }
.daily-actions .primary-button { color: var(--ink); background: white; }
.text-button { color: inherit; background: transparent; }
.daily-actions .text-button { color: white; border: 1px solid rgba(255,255,255,.3); }

.resume-card { margin: 1.5rem 0 4rem; padding: 1.4rem 1.6rem; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.6); }
.resume-card small { margin-bottom: .55rem; color: var(--teal-dark); }
.resume-card h2 { margin-bottom: .25rem; font: 700 1.25rem/1.2 "Manrope", sans-serif; }
.resume-card p { margin: 0; color: var(--muted); }
.resume-card a { flex: 0 0 auto; color: white; background: var(--teal-dark); }

.route-library { padding: 4rem 0 6rem; }
.library-heading { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: 2rem; }
.library-heading small { margin-bottom: .7rem; color: var(--teal-dark); }
.library-heading h2 { margin: 0; font: 700 clamp(2rem, 4vw, 3.5rem)/1 "Manrope", sans-serif; letter-spacing: -.045em; }
.library-heading > p { margin: 0; color: var(--muted); }
.route-filters { display: flex; flex-wrap: wrap; gap: .55rem; margin-bottom: 1.5rem; }
.route-filters button { min-height: 2.75rem; padding: 0 1rem; border: 1px solid var(--line); border-radius: 999px; color: var(--ink); background: transparent; cursor: pointer; font-weight: 600; }
.route-filters button.active { color: white; border-color: var(--teal-dark); background: var(--teal-dark); }
.route-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.route-card { min-height: 17rem; padding: 1.45rem; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.58); text-decoration: none; transition: transform .2s ease, border-color .2s ease, background .2s ease; }
.route-card:hover { transform: translateY(-3px); border-color: rgba(13,133,136,.45); background: white; }
.route-card small { color: var(--teal-dark); font-weight: 700; letter-spacing: .1em; }
.route-card h3 { margin: auto 0 .7rem; font: 700 clamp(1.45rem, 2.3vw, 2rem)/1.08 "Manrope", sans-serif; letter-spacing: -.035em; }
.route-card p { min-height: 3.15em; margin-bottom: 1.2rem; color: var(--muted); line-height: 1.52; }
.route-card footer { display: flex; justify-content: space-between; gap: .8rem; padding-top: 1rem; border-top: 1px solid var(--line); font-size: .85rem; font-weight: 700; }

.route-view { min-height: 70vh; padding: 2rem 0 6rem; }
.back-link { min-height: 2.75rem; display: inline-flex; align-items: center; gap: .55rem; margin-bottom: 2rem; color: var(--teal-dark); font-weight: 700; text-decoration: none; }
.route-preview { min-height: 34rem; padding: clamp(1.5rem, 5vw, 4rem); display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(18rem, .8fr); gap: 3rem; align-items: center; border-radius: calc(var(--radius) + .5rem); background: white; box-shadow: 0 1.5rem 4rem rgba(7,27,29,.08); }
.preview-copy small { color: var(--teal-dark); }
.preview-copy h1 { max-width: 11ch; margin-bottom: 1.25rem; font-size: clamp(3rem, 7vw, 6rem); }
.preview-copy > p { max-width: 40rem; color: var(--muted); font-size: 1.08rem; line-height: 1.6; }
.preview-list { margin: 0; padding: 0; list-style: none; counter-reset: steps; }
.preview-list li { counter-increment: steps; display: grid; grid-template-columns: 2.25rem 1fr; gap: .8rem; align-items: center; padding: .9rem 0; border-bottom: 1px solid var(--line); font-weight: 700; }
.preview-list li::before { content: counter(steps, decimal-leading-zero); color: var(--teal); font: 700 .75rem/1 "Manrope", sans-serif; }
.preview-actions { margin-top: 1.4rem; display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; }
.preview-actions span { color: var(--muted); font-size: .9rem; }

.route-player { width: min(900px, 100%); margin: 0 auto; padding: clamp(1rem, 3vw, 2rem); border: 1px solid var(--line); border-radius: calc(var(--radius) + .35rem); background: white; box-shadow: 0 1.4rem 4rem rgba(7,27,29,.08); }
.player-top { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; }
.player-top > div:first-child { display: grid; gap: .2rem; }
.player-top small { color: var(--teal-dark); font-weight: 800; letter-spacing: .1em; }
.player-top strong { font: 700 1rem/1.2 "Manrope", sans-serif; }
.progress-dots { margin: 0; }
.progress-dots i { width: .6rem; height: .6rem; background: #d6dfde; }
.progress-dots i.done { background: var(--teal); }
.progress-dots i.current { outline: 2px solid var(--teal); outline-offset: 3px; }
.progress-track { height: 3px; margin: 1.2rem 0 1.5rem; overflow: hidden; border-radius: 999px; background: #dfe7e6; }
.progress-track span { display: block; width: 0; height: 100%; background: var(--teal); transition: width .25s ease; }
.step-content { min-height: 30rem; display: grid; align-content: center; }
.step-shell { display: grid; grid-template-columns: minmax(13rem, .78fr) minmax(0, 1.22fr); gap: clamp(1.4rem, 4vw, 3rem); align-items: center; }
.step-shell.no-media { display: block; width: min(700px, 100%); margin: auto; }
.step-media { overflow: hidden; min-height: 20rem; display: grid; place-items: center; margin: 0; border-radius: var(--radius); background: var(--teal-soft); }
.step-media img { display: block; width: 100%; height: 100%; max-height: 24rem; object-fit: contain; }
.step-media.number { color: var(--teal-dark); font: 800 clamp(5rem, 13vw, 9rem)/1 "Manrope", sans-serif; letter-spacing: -.08em; }
.step-kicker { margin-bottom: .8rem; color: var(--teal-dark); }
.step-copy h2 { margin-bottom: 1rem; font: 700 clamp(2.25rem, 5vw, 4.2rem)/.98 "Manrope", sans-serif; letter-spacing: -.055em; }
.step-copy > p { color: var(--muted); font-size: 1.06rem; line-height: 1.65; }
.step-location { display: inline-flex; margin-bottom: .8rem; padding: .45rem .7rem; border-radius: 999px; color: var(--teal-dark); background: var(--teal-soft); font-weight: 700; font-size: .82rem; }
.deep-link { min-height: 2.85rem; display: inline-flex; align-items: center; gap: .5rem; margin-top: .5rem; color: var(--teal-dark); font-weight: 800; text-decoration: none; }
.step-navigation { display: flex; justify-content: space-between; gap: 1rem; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.step-navigation button { min-height: 3rem; padding: 0 1.15rem; border: 1px solid var(--line); border-radius: 999px; color: var(--ink); background: transparent; cursor: pointer; font-weight: 700; }
.step-navigation .primary-button { color: white; border-color: var(--ink); background: var(--ink); }
.step-navigation button:disabled { opacity: .38; cursor: not-allowed; }

.answer-options, .match-options, .layer-tabs { display: grid; gap: .6rem; margin-top: 1.3rem; }
.question-prompt { color: var(--ink) !important; font-weight: 700; }
.answer-options button, .match-options button, .layer-tabs button { min-height: 3.1rem; padding: .75rem 1rem; display: flex; align-items: center; gap: .75rem; border: 1px solid var(--line); border-radius: 1rem; color: var(--ink); background: white; text-align: left; cursor: pointer; }
.answer-options b { flex: 0 0 1.8rem; height: 1.8rem; display: grid; place-items: center; border-radius: 50%; background: var(--teal-soft); }
.answer-options button.correct, .match-options button.correct { border-color: var(--teal); background: #ecf8f5; }
.answer-options button.wrong, .match-options button.wrong { border-color: var(--accent); background: #fff1ec; }
.feedback { display: none; margin-top: 1rem; padding: 1rem; border-left: 3px solid var(--teal); background: #ecf8f5; line-height: 1.55; }
.feedback.visible { display: block; }
.feedback.wrong { border-color: var(--accent); background: #fff1ec; }
.feedback strong { display: block; margin-bottom: .3rem; }
.layer-tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.layer-tabs button { justify-content: center; text-align: center; font-weight: 700; }
.layer-tabs button.active { color: white; border-color: var(--teal-dark); background: var(--teal-dark); }
.layer-result { min-height: 8rem; margin-top: 1rem; padding: 1rem; border-radius: 1rem; background: var(--teal-soft); }
.layer-result strong { display: block; margin-bottom: .6rem; font: 700 1.2rem/1.2 "Manrope", sans-serif; }
.layer-result ul { margin: 0; padding-left: 1.2rem; color: var(--muted); line-height: 1.55; }
.comparison-mini { display: grid; grid-template-columns: 1fr auto 1fr; gap: .8rem; align-items: stretch; margin: 1.2rem 0; }
.comparison-mini > div { padding: 1rem; border: 1px solid var(--line); border-radius: 1rem; }
.comparison-mini b { display: block; margin-bottom: .45rem; }
.comparison-mini p { margin: 0; color: var(--muted); font-size: .94rem; line-height: 1.5; }
.comparison-mini > span { align-self: center; color: var(--teal); font-weight: 800; }
.similarities { margin: .8rem 0 0; padding-left: 1.2rem; color: var(--muted); line-height: 1.55; }

.route-complete { width: min(760px, 100%); margin: 2rem auto; padding: clamp(2rem, 6vw, 5rem); text-align: center; border-radius: calc(var(--radius) + .5rem); background: white; box-shadow: 0 1.4rem 4rem rgba(7,27,29,.08); }
.route-complete h1 { max-width: none; margin-bottom: 1rem; font-size: clamp(2.5rem, 6vw, 5rem); }
.route-complete p { color: var(--muted); font-size: 1.05rem; line-height: 1.6; }
.complete-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: .8rem; margin-top: 1.5rem; }
.related-routes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .7rem; margin: 1.5rem 0; text-align: left; }
.related-routes a { padding: 1rem; border: 1px solid var(--line); border-radius: 1rem; color: var(--teal-dark); font-weight: 700; text-decoration: none; }
.complete-actions a, .complete-actions button { min-height: 3rem; display: inline-flex; align-items: center; justify-content: center; padding: 0 1rem; border: 1px solid var(--line); border-radius: 999px; color: var(--ink); background: transparent; cursor: pointer; font-weight: 700; text-decoration: none; }
.complete-actions .primary-button { color: white; border-color: var(--ink); background: var(--ink); }

.education-note { margin: 0 0 4rem; color: var(--muted); font-size: .9rem; }
.site-footer { padding: 2rem clamp(1rem, 5vw, 5.5rem); color: white; background: var(--ink); }
.site-footer > div { display: flex; flex-wrap: wrap; gap: 1rem 1.4rem; margin-bottom: 1rem; }
.site-footer a, .site-footer button { color: inherit; border: 0; background: transparent; font-weight: 700; text-decoration: none; cursor: pointer; }
.site-footer p { max-width: 70rem; margin: 0; color: rgba(255,255,255,.64); font-size: .8rem; line-height: 1.55; }

button:focus-visible, a:focus-visible { outline: 3px solid #2a9fa2; outline-offset: 3px; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; min-height: auto; gap: 2rem; }
  .daily-route, .route-preview { grid-template-columns: 1fr; }
  .daily-actions { min-width: 0; justify-items: start; }
  .route-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step-shell { grid-template-columns: 1fr; }
  .step-media { min-height: 15rem; max-height: 20rem; }
}

@media (max-width: 600px) {
  main { width: min(100% - 1.25rem, 1240px); }
  .site-header { min-height: 5.2rem; padding: 1rem .7rem; }
  .brand-mark { width: 2.35rem; height: 2.35rem; }
  .brand strong { font-size: .83rem; }
  .brand small { font-size: .62rem; }
  .header-link { min-height: 2.5rem; padding: 0 .7rem; font-size: .78rem; }
  .hero { padding: 3.5rem .2rem 2.5rem; }
  h1 { font-size: clamp(2.75rem, 15vw, 4rem); }
  .daily-route { margin-top: 1.5rem; padding: 1.35rem; min-height: 30rem; }
  .daily-copy h2 { font-size: clamp(2.2rem, 12vw, 3.2rem); }
  .daily-actions { width: 100%; }
  .daily-actions a, .daily-actions button { width: 100%; }
  .resume-card { align-items: stretch; flex-direction: column; }
  .route-library { padding: 3rem 0 4rem; }
  .library-heading { align-items: start; flex-direction: column; gap: .8rem; }
  .route-filters { flex-wrap: nowrap; overflow-x: auto; padding: 0 .15rem .5rem; scrollbar-width: none; }
  .route-filters::-webkit-scrollbar { display: none; }
  .route-filters button { flex: 0 0 auto; }
  .route-grid { grid-template-columns: 1fr; }
  .route-card { min-height: 14rem; }
  .route-preview { min-height: 0; padding: 1.35rem; gap: 1.5rem; }
  .preview-copy h1 { font-size: clamp(2.65rem, 14vw, 4rem); }
  .preview-actions .primary-button { width: 100%; }
  .route-player { padding: 1rem; }
  .player-top { align-items: start; }
  .progress-dots { gap: .3rem; }
  .progress-dots i { width: .48rem; height: .48rem; }
  .step-content { min-height: 0; padding: 1.5rem 0; }
  .step-shell { gap: 1.2rem; }
  .step-media { min-height: 13rem; }
  .step-copy h2 { font-size: clamp(2rem, 11vw, 3rem); }
  .layer-tabs { grid-template-columns: 1fr; }
  .comparison-mini { grid-template-columns: 1fr; }
  .comparison-mini > span { justify-self: center; transform: rotate(90deg); }
  .step-navigation { position: sticky; bottom: 0; padding: .9rem 0 calc(.3rem + env(safe-area-inset-bottom)); background: white; }
  .step-navigation button { flex: 1; padding: 0 .7rem; }
  .route-complete { padding: 2rem 1.2rem; }
  .complete-actions { align-items: stretch; flex-direction: column; }
  .related-routes { grid-template-columns: 1fr; }
}

@media (max-width: 350px) {
  .brand small { display: none; }
  .header-link { font-size: .72rem; }
  .route-meta { align-items: flex-start; flex-direction: column; }
  .step-navigation button { font-size: .86rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}