:root {
  color-scheme: dark;
  --ink: #050b12;
  --navy: #071525;
  --navy-2: #0b1e30;
  --panel: #0d2233;
  --panel-2: #10283a;
  --line: rgba(198, 224, 230, .15);
  --line-strong: rgba(198, 224, 230, .28);
  --teal: #1ed6c5;
  --teal-2: #59fff0;
  --teal-dark: #138b86;
  --white: #f4f8f8;
  --muted: #9eb0b9;
  --gold: #d0a35b;
  --red: #ff6b6b;
  --font-display: "Barlow Condensed", Impact, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 78% -10%, rgba(30, 214, 197, .11), transparent 35rem),
    linear-gradient(180deg, #071525 0, #050b12 66%, #020609 100%);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
}

button, input, select { font: inherit; }
button { cursor: pointer; }

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 100;
  background: var(--teal);
  color: var(--ink);
  padding: .75rem 1rem;
  font-weight: 800;
}
.skip-link:focus { top: 1rem; }

.topbar {
  height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 clamp(1rem, 4vw, 4rem);
  border-bottom: 1px solid var(--line);
  background: rgba(5, 11, 18, .82);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand-lockup, .header-meta { display: flex; align-items: center; }
.brand-lockup { gap: .8rem; }
.brand-wordmark { display: block; width: 190px; height: auto; }
.product-name { padding-left: .8rem; border-left: 1px solid var(--line-strong); font: 800 1.35rem/1 var(--font-display); letter-spacing: .08em; }

.header-meta { gap: .65rem; color: var(--muted); font-size: .72rem; letter-spacing: .12em; font-weight: 800; }
.status-pip { width: 8px; height: 8px; background: var(--teal); box-shadow: 0 0 0 4px rgba(30, 214, 197, .12); }
.unit-switch { display: flex; border: 1px solid var(--line-strong); background: #06111c; color: var(--muted); padding: 3px; margin-left: .5rem; }
.unit-option { padding: .42rem .55rem; }
.unit-option.active { color: var(--ink); background: var(--teal); }

main { max-width: 1680px; margin: 0 auto; }
.intro-strip {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, .65fr);
  gap: clamp(2rem, 6vw, 7rem);
  align-items: end;
  padding: clamp(2.8rem, 6vw, 6.5rem) clamp(1rem, 4vw, 4rem) clamp(2rem, 4vw, 3.5rem);
}
.eyebrow, .panel-kicker, .micro-label { margin: 0; color: var(--teal); font-size: .73rem; letter-spacing: .19em; font-weight: 800; }
.intro-strip h1 {
  margin: .8rem 0 0;
  max-width: 950px;
  font: 800 clamp(2.75rem, 6.5vw, 6.2rem)/.88 var(--font-display);
  letter-spacing: -.025em;
  text-transform: uppercase;
}
.intro-copy { margin: 0 0 .4rem; max-width: 560px; color: #c5d2d7; font-size: clamp(1rem, 1.35vw, 1.2rem); }

.workspace {
  display: grid;
  grid-template-columns: minmax(330px, 410px) minmax(0, 1fr);
  border-top: 1px solid var(--line);
}

.control-panel {
  align-self: start;
  position: sticky;
  top: 82px;
  min-height: calc(100vh - 82px);
  padding: 2.1rem clamp(1.2rem, 3vw, 2.6rem) 3rem clamp(1rem, 4vw, 4rem);
  background: rgba(8, 24, 37, .88);
  border-right: 1px solid var(--line);
}
.control-panel h2, .results-head h2 { margin: .4rem 0 .75rem; font: 800 2rem/1 var(--font-display); text-transform: uppercase; letter-spacing: .01em; }
.panel-intro { margin: 0 0 1.7rem; color: var(--muted); font-size: .9rem; }

.field-grid { display: grid; gap: .85rem; }
.field-grid.two-col { grid-template-columns: 1fr 1fr; }
.field { display: flex; flex-direction: column; gap: .45rem; margin-bottom: 1rem; }
.field > span, fieldset legend {
  color: #c5d2d7;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.field em { color: #708792; font-style: normal; font-weight: 600; }
input, select {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  outline: none;
  background: #06131f;
  color: var(--white);
  padding: .72rem .8rem;
}
input:focus, select:focus, button:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

.source-picker { border: 0; padding: 0; margin: .25rem 0 1.25rem; }
.source-picker legend { margin-bottom: .55rem; }
.segmented { display: grid; grid-template-columns: 1fr 1fr 1fr; border: 1px solid var(--line-strong); padding: 3px; }
.source-button { min-height: 42px; border: 0; background: transparent; color: var(--muted); font-size: .72rem; font-weight: 800; line-height: 1.15; padding: .5rem .25rem; }
.source-button.active { background: var(--teal); color: var(--ink); }
.hidden { display: none !important; }

.time-inputs, .pace-inputs { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: end; gap: .45rem; }
.pace-inputs { grid-template-columns: 1fr auto 1fr; max-width: 260px; }
.time-inputs label, .pace-inputs label { display: flex; flex-direction: column; gap: .3rem; }
.time-inputs label span, .pace-inputs label span { font-size: .64rem; color: #708792; letter-spacing: .12em; font-weight: 700; }
.time-inputs b, .pace-inputs b { padding-bottom: .78rem; color: var(--teal); }
.time-inputs input, .pace-inputs input { text-align: center; font-weight: 700; }
.input-suffix { display: flex; align-items: stretch; }
.input-suffix input { border-right: 0; }
.input-suffix span { display: grid; place-items: center; min-width: 52px; border: 1px solid var(--line-strong); background: #0a1b29; color: var(--muted); font-size: .72rem; font-weight: 800; text-transform: uppercase; }

.test-callout { border-left: 3px solid var(--teal); background: rgba(30, 214, 197, .06); padding: .8rem .9rem; margin-bottom: 1rem; display: flex; flex-direction: column; gap: .25rem; }
.test-callout.gold { border-color: var(--gold); background: rgba(208, 163, 91, .07); }
.test-callout strong { font: 800 1.1rem/1 var(--font-display); text-transform: uppercase; }
.test-callout strong em { color: var(--muted); font: 600 .66rem/1 var(--font-body); font-style: normal; letter-spacing: .08em; }
.test-callout span { font-size: .78rem; color: var(--muted); }
.hr-callout { margin-top: .25rem; margin-bottom: .9rem; }
.final-fields { margin-top: .25rem; }
.field.is-disabled { opacity: .42; }
.field-guidance { margin: -.45rem 0 1rem; color: #708792; font-size: .7rem; line-height: 1.45; }
.form-error { border: 1px solid rgba(255, 107, 107, .45); background: rgba(255, 107, 107, .09); color: #ffc1c1; padding: .7rem .8rem; font-size: .82rem; margin-bottom: .8rem; }
.primary-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 56px;
  border: 0;
  padding: 0 1.1rem;
  background: var(--teal);
  color: var(--ink);
  font: 900 1.05rem/1 var(--font-display);
  letter-spacing: .08em;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: background .2s ease, transform .2s ease;
}
.primary-action:hover { background: var(--teal-2); transform: translateY(-2px); }
.primary-action span:last-child { font-size: 1.5rem; }
.privacy-note { margin: .75rem 0 0; color: #708792; font-size: .68rem; text-align: center; }

.results-panel { min-width: 0; padding: 2.1rem clamp(1rem, 3.4vw, 3.6rem) 3rem; background: rgba(5, 11, 18, .38); }
.print-header, .print-section-header, .print-motto { display: none; }
.output-brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  margin-bottom: 1.4rem;
  padding: .9rem 1rem;
  border: 1px solid rgba(30, 214, 197, .28);
  background: linear-gradient(90deg, rgba(30, 214, 197, .08), rgba(13, 34, 51, .28));
}
.output-brand img { display: block; width: min(310px, 68%); height: auto; }
.output-parent { display: flex; flex-direction: column; align-items: flex-end; gap: .35rem; }
.output-parent img { width: 172px; max-width: 100%; }
.output-parent span { color: var(--muted); font-size: .65rem; font-weight: 800; letter-spacing: .13em; text-align: right; }
.results-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.4rem; }
.result-actions { display: flex; gap: .55rem; }
.ghost-button { min-height: 40px; border: 1px solid var(--line-strong); background: transparent; color: #c5d2d7; padding: .55rem .8rem; font-size: .72rem; letter-spacing: .06em; font-weight: 700; text-transform: uppercase; }
.ghost-button:hover { border-color: var(--teal); color: var(--teal); }

.evidence-dashboard { display: grid; grid-template-columns: 1.15fr 1fr 1fr 1fr; border: 1px solid var(--line); }
.metric-card { min-height: 142px; padding: 1.2rem; border-right: 1px solid var(--line); display: flex; flex-direction: column; justify-content: space-between; }
.metric-card:last-child { border-right: 0; }
.metric-card > span { color: var(--muted); font-size: .66rem; letter-spacing: .13em; font-weight: 800; }
.metric-card strong { font: 800 clamp(1.65rem, 3vw, 2.6rem)/.9 var(--font-display); text-transform: uppercase; }
.metric-card strong small { font-size: .48em; color: var(--teal); letter-spacing: .04em; }
.metric-card p { margin: 0; color: var(--muted); font-size: .75rem; }
.primary-metric { background: var(--teal); color: var(--ink); }
.primary-metric > span, .primary-metric p { color: #073d3b; }
.primary-metric strong small { color: #073d3b; }
.confidence { color: var(--gold); }

.method-note { border: 1px solid var(--line); border-top: 0; background: rgba(13, 34, 51, .38); }
.method-note summary { padding: .75rem 1rem; color: #b8c8ce; font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; cursor: pointer; }
.method-note summary::marker { color: var(--teal); }
.method-note div { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; padding: 0 1rem 1rem; }
.method-note p { margin: 0; color: var(--muted); font-size: .74rem; }
.method-note a { color: var(--teal); font-weight: 700; }

.zone-spectrum { display: grid; grid-template-columns: 1.3fr 1.2fr 1fr .8fr .72fr .6fr; gap: 4px; height: 8px; margin: 1rem 0 2.2rem; }
.zone-spectrum span { background: var(--teal-dark); }
.zone-spectrum .s1 { opacity: .35; }
.zone-spectrum .s2 { opacity: .5; }
.zone-spectrum .s3 { opacity: .66; }
.zone-spectrum .s4 { opacity: .8; }
.zone-spectrum .s5 { background: var(--teal); }
.zone-spectrum .s6 { background: var(--gold); }

.zone-title-row, .evidence-card-head { display: flex; justify-content: space-between; align-items: end; gap: 1.2rem; margin-bottom: 1rem; }
.zone-title-row h3, .evidence-card h3, .prescription-card h3, .coach-read-card h3 { margin: .25rem 0 0; font: 800 1.7rem/1 var(--font-display); text-transform: uppercase; }
.zone-title-row > p, .evidence-card-head > p { margin: 0; max-width: 520px; color: var(--muted); font-size: .78rem; text-align: right; }
.zone-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.zone-card { position: relative; min-height: 190px; padding: 1.05rem 1.1rem 1rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); overflow: hidden; background: rgba(13, 34, 51, .45); }
.zone-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--zone); opacity: var(--zone-opacity, 1); }
.zone-card-top { display: flex; justify-content: space-between; gap: 1rem; }
.zone-id { display: flex; gap: .7rem; align-items: center; }
.zone-number { color: var(--zone); font: 900 2.4rem/1 var(--font-display); }
.zone-name { display: flex; flex-direction: column; }
.zone-name strong { font: 800 1.25rem/1 var(--font-display); text-transform: uppercase; }
.zone-name span { margin-top: .28rem; color: var(--muted); font-size: .67rem; letter-spacing: .08em; text-transform: uppercase; }
.rpe-chip { height: max-content; border: 1px solid var(--line-strong); padding: .3rem .45rem; color: var(--muted); font-size: .64rem; font-weight: 700; }
.zone-values { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; margin-top: 1.15rem; }
.zone-value { border-top: 1px solid var(--line); padding-top: .7rem; }
.zone-value span { display: block; color: #708792; font-size: .62rem; letter-spacing: .12em; font-weight: 800; }
.zone-value strong { display: block; margin-top: .25rem; font: 800 1.28rem/1 var(--font-display); letter-spacing: .01em; }
.zone-purpose { margin: .9rem 0 0; color: #b6c4ca; font-size: .76rem; }

.lower-grid { display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(300px, .82fr); gap: 1rem; margin-top: 1rem; }
.prescription-card, .coach-read-card, .evidence-card { border: 1px solid var(--line); background: rgba(13, 34, 51, .52); padding: clamp(1.1rem, 2.2vw, 1.7rem); }
.prescription-card { border-top: 4px solid var(--teal); }
.coach-read-card { border-top: 4px solid var(--gold); }
.card-topline { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.session-tag, .review-badge { color: var(--teal); font-size: .64rem; letter-spacing: .1em; font-weight: 800; }
.review-badge { color: var(--gold); }
.prescription-card h3, .coach-read-card h3 { font-size: clamp(1.8rem, 3.5vw, 3.1rem); margin-top: .75rem; }
.session-summary, .coach-read-card > p { color: #c5d2d7; font-size: .92rem; }
.session-targets { display: grid; grid-template-columns: 1.15fr 1fr .8fr; border: 1px solid var(--line); margin: 1.2rem 0; }
.session-targets div { padding: .8rem; border-right: 1px solid var(--line); }
.session-targets div:last-child { border-right: 0; }
.session-targets span { display: block; color: #708792; font-size: .6rem; letter-spacing: .12em; font-weight: 800; }
.session-targets strong { display: block; margin-top: .3rem; font: 800 1.05rem/1.1 var(--font-display); }
.session-build { display: flex; min-height: 54px; border: 1px solid var(--line); overflow: hidden; }
.session-block { display: grid; place-items: center; min-width: 54px; padding: .45rem; border-right: 2px solid var(--ink); background: rgba(30, 214, 197, var(--block-opacity)); color: var(--white); font-size: .64rem; text-align: center; font-weight: 800; line-height: 1.15; }
.session-block:last-child { border-right: 0; }
.coach-note { margin: 1rem 0 0; color: var(--muted); font-size: .78rem; }
.coach-note strong { color: var(--teal); }
.coach-list { list-style: none; padding: 0; margin: 1.2rem 0 0; }
.coach-list li { display: grid; grid-template-columns: 32px 1fr; gap: .65rem; border-top: 1px solid var(--line); padding: .8rem 0; }
.coach-list li span { color: var(--gold); font: 800 1rem/1 var(--font-display); }
.coach-list li p { margin: 0; color: #b6c4ca; font-size: .78rem; }

.evidence-card { margin-top: 1rem; }
.race-markers { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); }
.race-marker { padding: 1rem; border-right: 1px solid var(--line); }
.race-marker:last-child { border-right: 0; }
.race-marker span { color: #708792; font-size: .64rem; letter-spacing: .12em; font-weight: 800; }
.race-marker strong { display: block; margin-top: .35rem; font: 800 clamp(1.5rem, 3vw, 2.3rem)/1 var(--font-display); }
.race-marker em { display: block; margin-top: .4rem; color: var(--muted); font-size: .66rem; font-style: normal; }

.product-footer { display: grid; grid-template-columns: 1fr minmax(280px, .8fr); gap: 2rem; align-items: end; border-top: 1px solid var(--line); margin-top: 2rem; padding-top: 1.4rem; color: #708792; }
.product-footer div { display: flex; flex-direction: column; }
.product-footer strong { color: var(--white); font: 800 1.5rem/1 var(--font-display); letter-spacing: .08em; }
.product-footer span, .product-footer p { font-size: .68rem; }
.product-footer p { margin: 0; text-align: right; }

.toast { position: fixed; right: 1rem; bottom: 1rem; transform: translateY(140%); transition: transform .25s ease; background: var(--teal); color: var(--ink); padding: .8rem 1rem; font-size: .78rem; font-weight: 800; z-index: 50; }
.toast.show { transform: translateY(0); }

@media (max-width: 1380px) and (min-width: 1121px) {
  .evidence-dashboard { grid-template-columns: 1fr 1fr; }
  .metric-card:nth-child(2) { border-right: 0; }
  .metric-card:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 1120px) {
  .intro-strip { grid-template-columns: 1fr; gap: 1.2rem; }
  .intro-copy { max-width: 760px; }
  .workspace { grid-template-columns: 360px minmax(0, 1fr); }
  .control-panel { padding-left: 1.4rem; }
  .evidence-dashboard { grid-template-columns: 1fr; }
  .metric-card { min-height: 118px; border-right: 0; border-bottom: 1px solid var(--line); }
  .metric-card:last-child { border-bottom: 0; }
  .zone-grid, .lower-grid { grid-template-columns: 1fr; }
}

@media (max-width: 780px) {
  .topbar { height: 70px; padding: 0 .85rem; }
  .brand-wordmark { width: 145px; }
  .product-name { padding-left: .55rem; font-size: 1rem; }
  .header-meta > span:not(.status-pip) { display: none; }
  .workspace { display: block; }
  .control-panel { position: relative; top: auto; min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); padding: 1.5rem 1rem 2rem; }
  .results-panel { padding: 1.5rem 1rem 2.5rem; }
  .intro-strip { padding: 2.2rem 1rem 1.7rem; }
  .intro-strip h1 { font-size: clamp(2.65rem, 14vw, 4.4rem); }
  .intro-copy { font-size: .95rem; }
  .results-head, .zone-title-row, .evidence-card-head { align-items: flex-start; flex-direction: column; }
  .zone-title-row > p, .evidence-card-head > p { text-align: left; }
  .result-actions { width: 100%; }
  .result-actions button { flex: 1; }
  .output-brand { align-items: flex-start; flex-direction: column; }
  .output-brand img { width: min(100%, 330px); }
  .output-parent { align-items: flex-start; }
  .output-parent img { width: 155px; }
  .output-parent span { text-align: left; }
  .zone-grid { grid-template-columns: 1fr; }
  .race-markers { grid-template-columns: 1fr 1fr; }
  .race-marker:nth-child(2) { border-right: 0; }
  .race-marker:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .session-targets { grid-template-columns: 1fr; }
  .session-targets div { border-right: 0; border-bottom: 1px solid var(--line); }
  .session-targets div:last-child { border-bottom: 0; }
  .product-footer { grid-template-columns: 1fr; gap: .8rem; }
  .product-footer p { text-align: left; }
  .method-note div { grid-template-columns: 1fr; }
}

@media (max-width: 460px) {
  .product-name { display: none; }
  .brand-wordmark { width: 150px; }
  .field-grid.two-col { grid-template-columns: 1fr; gap: 0; }
  .segmented { grid-template-columns: 1fr; }
  .source-button { min-height: 38px; }
  .zone-card { min-height: 0; }
  .zone-values { grid-template-columns: 1fr; }
  .race-markers { grid-template-columns: 1fr; }
  .race-marker, .race-marker:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--line); }
  .race-marker:last-child { border-bottom: 0; }
}

@media print {
  @page { size: A4 portrait; margin: 0; }

  :root { color-scheme: dark; }

  html, body {
    width: 210mm;
    min-width: 0;
    margin: 0;
    background: #071525 !important;
    color: #f4f8f8 !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  body { font-size: 9.5pt; line-height: 1.38; }
  .topbar, .intro-strip, .control-panel, .output-brand, .result-actions, .toast { display: none !important; }
  main, .workspace { display: block; width: 100%; max-width: none; border: 0; }

  .results-panel {
    width: 100%;
    padding: 10mm 11mm 9mm;
    background: #071525 !important;
  }

  .print-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 15mm;
    padding-bottom: 4mm;
    border-bottom: 1.2pt solid #1ed6c5;
    break-inside: avoid;
  }

  .print-brand { display: flex; align-items: center; }
  .print-brand img { display: block; width: 58mm; height: auto; }
  .print-parent { display: flex; flex-direction: column; align-items: flex-end; gap: 1.2mm; }
  .print-parent img { display: block; width: 43mm; height: auto; }
  .print-parent span, .print-section-header > span { color: #1ed6c5; font-size: 8pt; letter-spacing: .1em; font-weight: 800; }

  .results-head {
    align-items: flex-end;
    margin: 7mm 0 5mm;
    padding: 0;
    break-inside: avoid;
  }
  .results-head h2 { margin: 1.5mm 0 0; font-size: 27pt; line-height: .95; }
  .panel-kicker, .micro-label { color: #1ed6c5 !important; font-size: 7pt; letter-spacing: .16em; }

  .evidence-dashboard {
    grid-template-columns: 1fr 1fr;
    border: 0;
    gap: 3mm;
    break-inside: avoid;
  }
  .metric-card {
    min-height: 28mm;
    padding: 4mm;
    border: 1pt solid #28465b !important;
    border-top: 2.5pt solid #1ed6c5 !important;
    border-radius: 4mm;
    background: #0d2233 !important;
    color: #f4f8f8 !important;
    break-inside: avoid;
  }
  .metric-card:last-child { border-right: 1pt solid #28465b; }
  .metric-card > span { color: #9eb0b9 !important; font-size: 6.5pt; }
  .metric-card strong { color: #f4f8f8 !important; font-size: 21pt; }
  .metric-card strong small { color: #1ed6c5 !important; }
  .metric-card p { color: #9eb0b9 !important; font-size: 7pt; }
  .primary-metric { background: #19cfc0 !important; border-color: #19cfc0 !important; color: #071525 !important; }
  .primary-metric > span, .primary-metric strong, .primary-metric strong small, .primary-metric p { color: #062b2b !important; }
  .confidence { color: #d0a35b !important; }

  .method-note {
    margin-top: 3mm;
    border: 1pt solid #28465b;
    border-left: 2.5pt solid #d0a35b;
    border-radius: 3mm;
    background: #0d2233 !important;
    break-inside: avoid;
  }
  .method-note summary { padding: 2.5mm 3mm 1.5mm; color: #f4f8f8 !important; font-size: 7pt; }
  .method-note > div { display: grid !important; grid-template-columns: 1fr 1fr; gap: 4mm; padding: 0 3mm 2.5mm; }
  .method-note p { color: #9eb0b9 !important; font-size: 7pt; line-height: 1.35; }

  .zone-spectrum { height: 1.8mm; margin: 3mm 0 4mm; gap: 1mm; }
  .zone-title-row { align-items: flex-end; margin-bottom: 3mm; break-inside: avoid; }
  .zone-title-row h3 { margin-top: 1mm; font-size: 17pt; }
  .zone-title-row > p { max-width: 82mm; color: #9eb0b9 !important; font-size: 7pt; }

  .zone-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3mm;
    border: 0;
  }
  .zone-card {
    min-height: 42mm;
    padding: 3.5mm 4mm 3mm;
    border: 1pt solid #28465b !important;
    border-radius: 4mm;
    background: #0d2233 !important;
    color: #f4f8f8 !important;
    break-inside: avoid;
  }
  .zone-card::before { width: 1.2mm; }
  .zone-number { font-size: 21pt; }
  .zone-name strong { color: #f4f8f8 !important; font-size: 13pt; }
  .zone-name span, .rpe-chip { color: #9eb0b9 !important; font-size: 6.25pt; }
  .rpe-chip { border-color: #28465b; padding: 1mm 1.5mm; }
  .zone-values { gap: 3mm; margin-top: 2.5mm; }
  .zone-value { padding-top: 2mm; border-color: #28465b; }
  .zone-value span { color: #708792 !important; font-size: 6pt; }
  .zone-value strong { color: #f4f8f8 !important; margin-top: 1mm; font-size: 11.5pt; }
  .zone-purpose { margin-top: 2mm; color: #b6c4ca !important; font-size: 7.2pt; line-height: 1.3; }

  .print-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10mm 0 4mm;
    border-bottom: 1.2pt solid #1ed6c5;
    break-before: page;
    break-after: avoid;
  }
  .print-section-header strong { font: 700 15pt/1 var(--font-display); letter-spacing: .02em; }

  .lower-grid { display: grid; grid-template-columns: 1fr; gap: 4mm; margin-top: 6mm; }
  .prescription-card, .coach-read-card, .evidence-card {
    padding: 5mm;
    border: 1pt solid #28465b !important;
    border-radius: 4mm;
    background: #0d2233 !important;
    color: #f4f8f8 !important;
    break-inside: avoid;
  }
  .prescription-card { border-top: 2.5pt solid #1ed6c5 !important; }
  .coach-read-card { border-top: 2.5pt solid #d0a35b !important; }
  .prescription-card h3, .coach-read-card h3 { margin-top: 2mm; color: #f4f8f8 !important; font-size: 24pt; }
  .session-summary, .coach-read-card > p { color: #c5d2d7 !important; font-size: 8.25pt; }
  .session-targets { margin: 3mm 0; border-color: #28465b; }
  .session-targets div { padding: 2.5mm; border-color: #28465b; }
  .session-targets span { color: #708792 !important; font-size: 6pt; }
  .session-targets strong { color: #f4f8f8 !important; font-size: 9.5pt; }
  .session-build { min-height: 11mm; border-color: #28465b; }
  .session-block { font-size: 6.25pt; }
  .coach-note { margin-top: 2.5mm; color: #9eb0b9 !important; font-size: 7.25pt; }
  .coach-list { margin-top: 3mm; }
  .coach-list li { grid-template-columns: 8mm 1fr; gap: 2mm; padding: 2.2mm 0; border-color: #28465b; }
  .coach-list li p { color: #b6c4ca !important; font-size: 7.25pt; }

  .evidence-card { margin-top: 4mm; }
  .evidence-card-head { margin-bottom: 3mm; }
  .evidence-card h3 { font-size: 17pt; }
  .evidence-card-head > p { color: #9eb0b9 !important; font-size: 7pt; }
  .race-markers { border-color: #28465b; }
  .race-marker { padding: 3mm; border-color: #28465b; }
  .race-marker span { color: #708792 !important; font-size: 6.25pt; }
  .race-marker strong { color: #f4f8f8 !important; font-size: 17pt; }
  .race-marker em { color: #9eb0b9 !important; font-size: 6.25pt; }

  .product-footer {
    grid-template-columns: 1fr minmax(70mm, .8fr);
    gap: 8mm;
    margin-top: 5mm;
    padding-top: 4mm;
    border-color: #28465b;
    color: #708792 !important;
    break-inside: avoid;
  }
  .product-footer strong { color: #f4f8f8 !important; font-size: 13pt; }
  .product-footer span, .product-footer p { color: #708792 !important; font-size: 6.25pt; }
  .print-motto { display: block; margin-top: 1.5mm; color: #1ed6c5 !important; font-weight: 800; letter-spacing: .09em; }
}