:root {
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #192d25;
  background: #f4f6f3;
  font-synthesis: none;
  line-height: 1.55;
  --ink: #192d25;
  --green: #214e3d;
  --lime: #d0ee8b;
  --muted: #647169;
  --line: #dfe5df;
  --paper: #fff;
  --radius: 18px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 26px; }
body { margin: 0; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button, a.button { cursor: pointer; }
button:disabled { opacity: .45; cursor: default; }
:focus-visible { outline: 3px solid #509e7a; outline-offset: 4px; }
[hidden] { display: none !important; }
svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
h1, h2, h3, h4, p { margin-top: 0; }
h2 { margin-bottom: 0; font-size: 27px; line-height: 1.2; letter-spacing: -.9px; font-weight: 650; }
h3 { font-size: 21px; line-height: 1.25; letter-spacing: -.6px; }
h4 { font-size: 15px; margin-bottom: 7px; }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 50; padding: 12px; background: var(--lime); border-radius: 8px; }
.skip-link:focus { top: 12px; }
.sidebar { position: fixed; inset: 0 auto 0 0; width: 224px; padding: 34px 22px 26px; background: #12251f; color: #f6faf2; display: flex; flex-direction: column; z-index: 20; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 650; font-size: 20px; letter-spacing: -.7px; }
.brand-mark { display: inline-flex; position: relative; align-items: center; justify-content: center; width: 43px; height: 43px; border: 1px solid #7b9b73; color: var(--lime); border-radius: 13px; font-size: 24px; font-weight: 600; letter-spacing: -3px; padding-right: 5px; }
.brand-mark span svg { width: 11px; height: 11px; }
.brand-mark span { position: absolute; right: 3px; top: 2px; font-size: 14px; letter-spacing: 0; }
.brand small { display: block; font-size: 7px; letter-spacing: 1.55px; color: #a5b6aa; font-weight: 500; margin-top: 2px; }
.sidebar nav { display: flex; flex-direction: column; gap: 7px; margin-top: 55px; }
.sidebar nav a { display: flex; gap: 14px; align-items: center; padding: 13px 15px; border-radius: 10px; color: #aebdb4; font-size: 13px; font-weight: 550; transition: background .16s, color .16s; }
.sidebar nav a svg { width: 20px; height: 20px; }
.sidebar nav a:hover { background: #ffffff0a; color: #fff; }
.sidebar nav a[aria-current] { background: #d0ee8b; color: #203a28; }
.sidebar-bottom { margin-top: auto; padding: 22px 4px 0; border-top: 1px solid #ffffff17; font-size: 11px; color: #d2dfd4; }
.sidebar-bottom small { display: block; padding-left: 14px; font-size: 10px; color: #8fa798; margin-top: 9px; line-height: 1.9; }
.privacy-dot { display: inline-block; width: 6px; height: 6px; background: #b7d780; border-radius: 50%; margin-right: 5px; flex-shrink: 0; }
main { margin-left: 224px; max-width: 1544px; padding: 0 42px; }
.page-header { min-height: 106px; display: flex; gap: 20px; align-items: center; border-bottom: 1px solid var(--line); margin-bottom: 30px; }
.page-header > div { margin-right: auto; }
.page-header p { font-size: 14px; font-weight: 550; margin: 4px 0 0; }
.eyebrow { display: block; font-size: 9px; letter-spacing: 1.65px; font-weight: 700; color: var(--muted); margin-bottom: 9px; }
.page-header .eyebrow { font-size: 8px; margin: 0; }
.local-badge { display: flex; align-items: center; white-space: nowrap; padding: 8px 12px; border: 1px solid var(--line); border-radius: 30px; font-size: 10px; }
.local-badge .privacy-dot { background: #48896a; }
.home-section { scroll-margin-top: 24px; }
.welcome-card { position: relative; min-height: 330px; display: grid; grid-template-columns: 1.25fr 1fr; background: #173a2b; border-radius: 21px; overflow: hidden; color: #fff; }
.hero-copy { padding: 37px 38px 32px; z-index: 1; }
.hero-tag { font-size: 8px; letter-spacing: 2px; color: #b9cbb4; font-weight: 650; }
h1 { font-size: clamp(36px, 4vw, 57px); line-height: 1.07; letter-spacing: -2.4px; margin: 17px 0 17px; font-weight: 600; }
h1 em { font-style: normal; color: var(--lime); }
.hero-copy p { color: #c1d1c3; font-size: 13px; line-height: 1.8; max-width: 330px; margin-bottom: 22px; }
.hero-footnote { display: block; font-size: 9px; color: #aec5b2; margin-top: 12px; }
.button { border: 1px solid transparent; border-radius: 9px; min-height: 46px; padding: 12px 17px; display: inline-flex; gap: 15px; align-items: center; justify-content: center; font-size: 12px; font-weight: 650; line-height: 1.4; transition: background .16s, box-shadow .16s; }
.button:hover:not(:disabled) { box-shadow: 0 3px 12px #15372815; }
.button.primary { background: #214e3d; color: #fff; }
.button.primary:hover:not(:disabled) { background: #163e2e; }
.button.secondary { background: #fff; border-color: #d5dfd6; color: #294537; }
.button.secondary:hover:not(:disabled) { background: #f0f5ed; }
.button.lime { background: var(--lime); color: #203c27; }
.button.lime .arrow-icon { margin-left: 12px; }
.track-art { position: relative; min-height: 100%; overflow: hidden; }
.track-loop { position: absolute; width: 210px; height: 310px; border: 1px solid #b9d49b35; border-radius: 120px; transform: rotate(33deg); left: 45px; top: 18px; }
.loop-two { width: 262px; height: 363px; left: 19px; top: -8px; }
.loop-three { width: 314px; height: 415px; left: -7px; top: -34px; }
.track-marker { position: absolute; top: 38px; left: 121px; width: 14px; height: 14px; border: 4px solid #7d9b62; background: var(--lime); border-radius: 50%; box-shadow: 0 0 0 6px #a9cf7e14; }
.track-word { position: absolute; top: 120px; left: 80px; font-size: 28px; font-weight: 750; font-style: italic; letter-spacing: -1.5px; line-height: 1.12; transform: rotate(-6deg); color: #e0edce; }
.track-label { position: absolute; bottom: 28px; left: 96px; font-size: 7px; letter-spacing: 2px; color: #9eba9d; }
.download-callout { display: flex; align-items: center; gap: 15px; padding: 19px 22px; margin-top: 14px; border: 1px solid #dbe5d3; background: #ebf0e3; border-radius: 13px; }
.callout-icon { width: 42px; height: 42px; display: grid; place-items: center; background: #dae6c9; border-radius: 12px; flex-shrink: 0; }
.download-callout .eyebrow { font-size: 7px; margin-bottom: 3px; }
.download-callout strong { display: block; font-size: 14px; font-weight: 650; letter-spacing: -.15px; }
.download-callout > span:nth-child(2) > span:last-child { display: block; font-size: 12px; color: var(--muted); margin-top: 4px; }
.callout-action { font-size: 12px; font-weight: 650; display: flex; align-items: center; gap: 10px; white-space: nowrap; margin-left: auto; }
.section { margin-top: 42px; }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 20px; }
.section-heading .eyebrow { margin-bottom: 7px; }
.section-index { font-size: 8px; letter-spacing: 1px; color: #818d83; white-space: nowrap; }
.section-intro { font-size: 12px; color: var(--muted); margin: -6px 0 21px; max-width: 620px; }
.routine-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 20px; }
.routine-toolbar > p { font-size: 12px; color: var(--muted); margin: 0; }
.record-source { display: flex; gap: 12px; align-items: center; }
.record-source label { white-space: nowrap; font-size: 10px; color: var(--muted); }
label { display: block; font-size: 11px; font-weight: 550; }
select, input { border: 1px solid #d8e1d7; border-radius: 8px; color: var(--ink); background: #fff; padding: 11px 12px; font-size: 12px; max-width: 100%; }
select { display: block; width: 100%; margin-top: 7px; }
select:disabled { opacity: .65; }
.record-source select { margin: 0; width: 220px; font-size: 11px; }
.routine-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 17px; }
.routine-card { background: var(--paper); border: 1px solid var(--line); border-radius: 15px; overflow: hidden; }
.routine-art { height: 120px; position: relative; padding: 17px 20px; background: #e7eedf; color: #416440; overflow: hidden; }
.routine-art.intervals { background: #f1e9de; color: #8b6948; }
.routine-art.steady { background: #dfecea; color: #42786e; }
.routine-art::after { content: ''; position: absolute; right: -10px; top: -45px; width: 130px; height: 220px; border: 1px solid currentColor; border-radius: 80px; opacity: .2; transform: rotate(35deg); box-shadow: 0 0 0 15px #ffffff25, 0 0 0 16px currentColor; }
.routine-art > span { display: block; font-size: 8px; letter-spacing: 1.4px; text-transform: uppercase; font-weight: 650; }
.routine-art strong { display: block; font-size: 42px; font-weight: 550; letter-spacing: -2px; line-height: 1; margin-top: 11px; }
.routine-art strong small { font-size: 11px; margin-left: 5px; letter-spacing: 0; font-weight: 500; }
.routine-content { padding: 19px; }
.routine-meta { display: flex; gap: 10px; color: var(--muted); font-size: 9px; }
.routine-content h3 { font-size: 18px; margin: 10px 0 8px; }
.routine-content p { min-height: 64px; margin: 0 0 18px; font-size: 12px; line-height: 1.8; color: var(--muted); }
.routine-content .button { display: flex; justify-content: space-between; width: 100%; border-color: #dce5d7; background: #f7f9f4; color: var(--green); min-height: 44px; font-size: 12px; }
.routine-content .button:hover { background: #eaf1e3; }
.arrow-icon { width: 16px; height: 16px; vertical-align: middle; }
.device-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.device-panel { display: flex; flex-direction: column; min-width: 0; padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); scroll-margin-top: 26px; }
.device-heading { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 18px; }
.device-icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 11px; background: #edf2e8; color: #526e43; }
.pulse-icon { background: #f6eae5; color: #af725c; }
.pill { display: inline-block; max-width: 100%; font-size: 9px; line-height: 1.5; color: #667469; border: 1px solid #e0e6dd; padding: 5px 9px; border-radius: 20px; background: #f8faf6; text-align: center; }
.pill[data-state="live"] { color: #23613b; background: #e7f2df; border-color: #cadfbc; }
.pill[data-state="error"], .pill[data-state="stale"] { background: #fff3e1; border-color: #ecd8b7; color: #836123; }
.device-panel h3 { margin-bottom: 6px; }
.device-subtitle { font-size: 12px; color: var(--muted); margin-bottom: 20px; }
.device-name { font-size: 10px; font-weight: 600; margin: 0 0 6px; overflow-wrap: anywhere; }
.muted { font-size: 12px; color: var(--muted); line-height: 1.8; }
.metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 15px; margin: 24px 0; }
.metrics > div > span { display: block; color: var(--muted); font-size: 8px; letter-spacing: .8px; }
.metrics strong { display: block; font-size: 39px; font-weight: 550; line-height: 1.4; letter-spacing: -1.5px; font-variant-numeric: tabular-nums; }
.metrics strong span { display: inline; }
.metrics strong small { font-size: 15px; font-weight: 400; letter-spacing: 0; }
#caminadora .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.heart-reading { display: flex; align-items: baseline; gap: 10px; min-height: 90px; padding: 14px 0 10px; }
.heart-reading strong { font-size: 63px; line-height: 1; font-weight: 500; letter-spacing: -3px; font-variant-numeric: tabular-nums; }
.heart-reading span { font-size: 11px; color: var(--muted); }
.session-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin: 18px 0 0; }
.device-panel .session-actions { margin-top: auto; padding-top: 12px; }
.device-panel .button { font-size: 12px; }
details { border-top: 1px solid var(--line); margin-top: 20px; padding-top: 14px; color: var(--muted); font-size: 12px; line-height: 1.85; }
summary { color: #3d5343; cursor: pointer; font-size: 11px; font-weight: 600; }
details p { margin: 12px 0 0; }
details li { padding-left: 3px; margin-bottom: 8px; }
details a, .setup-steps a { text-decoration: underline; text-underline-offset: 3px; color: var(--green); }
.inline-link { display: inline-flex; gap: 6px; font-size: 10px; color: #446543; font-weight: 600; margin-top: 17px; line-height: 1.8; }
.session-panel { padding: 28px; border: 1px solid #bed0ae; border-radius: var(--radius); background: #edf3e5; }
.session-panel .pill { background: #fff; color: var(--green); }
.stage-name { margin: 18px 0 4px; font-size: 22px; font-weight: 550; }
.session-panel progress { width: 100%; height: 7px; accent-color: #507e47; }
#speed-form { margin-top: 20px; }
.speed-row { display: flex; gap: 10px; margin-top: 8px; }
.speed-row input { width: 110px; font-variant-numeric: tabular-nums; }
.small-note { font-size: 11px; line-height: 1.9; color: var(--muted); margin: 13px 0 0; }
.text-button { padding: 8px 0; color: var(--green); border: 0; background: none; font-size: 11px; font-weight: 600; cursor: pointer; }
.clear-button { color: #985d47; margin-top: 14px; }
.summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 25px 16px; margin-bottom: 15px; }
.summary > div { padding-left: 18px; border-right: 1px solid var(--line); }
.summary > div:last-child { border: 0; }
.summary strong { font-size: 31px; line-height: 1.3; font-weight: 550; letter-spacing: -1px; display: block; font-variant-numeric: tabular-nums; }
.summary span { font-size: 10px; color: var(--muted); }
.empty-state { text-align: center; padding: 28px; font-size: 11px; border: 1px dashed #ccd8c8; color: var(--muted); border-radius: 14px; }
.empty-state strong { display: block; font-size: 13px; color: var(--ink); margin-bottom: 5px; }
.history-row { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 5px; border-bottom: 1px solid var(--line); font-size: 12px; }
.history-row small { display: block; font-size: 12px; color: var(--muted); margin-top: 4px; }
.history-values { text-align: right; font-variant-numeric: tabular-nums; }
.downloads-section { padding-top: 10px; }
.download-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.download-card { display: flex; flex-direction: column; min-width: 0; background: #fff; padding: 25px; border: 1px solid var(--line); border-radius: var(--radius); }
.watch-card { border-color: #b9cf9c; background: #f4f8ed; }
.platform-label { font-size: 8px; letter-spacing: 1.8px; font-weight: 650; color: #6c7b68; margin-bottom: 22px; }
.download-card-heading { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.download-card-heading > svg { width: 31px; height: 31px; color: #527448; }
.download-card h3 { margin-bottom: 9px; font-size: 23px; }
.download-card > p { color: var(--muted); font-size: 13px; line-height: 1.9; margin-bottom: 24px; }
.download-card > .button { margin-top: auto; align-self: flex-start; }
.download-note { display: block; margin-top: 10px; font-size: 11px; color: var(--muted); }
.watch-guide { background: #fff; margin-top: 24px; padding: 29px; border: 1px solid var(--line); border-radius: var(--radius); }
.guide-title { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.guide-title h3 { margin-bottom: 9px; font-size: 22px; }
.guide-title p:last-child { font-size: 12px; color: var(--muted); margin: 0; max-width: 510px; }
.guide-title > .pill { white-space: nowrap; }
.setup-steps { list-style: none; padding: 0; margin: 24px 0; counter-reset: setup; }
.setup-steps > li { display: flex; gap: 18px; counter-increment: setup; margin-bottom: 25px; }
.setup-steps > li:last-child { margin-bottom: 0; }
.setup-steps > li::before { content: counter(setup, decimal-leading-zero); display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid #dce6d4; border-radius: 50%; background: #f2f6ed; color: #557345; font-size: 9px; font-weight: 650; flex-shrink: 0; }
.setup-steps > li > div { min-width: 0; width: 100%; padding-top: 3px; }
.setup-steps p { margin: 0 0 9px; max-width: 85ch; color: var(--muted); font-size: 13px; line-height: 1.9; }
.setup-steps strong { font-weight: 650; color: #3c5142; }
code { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; font-size: .95em; overflow-wrap: anywhere; }
.command-panel { background: #14281f; color: #d9e9ce; border-radius: 11px; padding: 15px 18px; margin: 16px 0; }
.command-panel > div { display: flex; justify-content: space-between; align-items: center; gap: 10px; border-bottom: 1px solid #ffffff18; padding-bottom: 10px; }
.command-panel > div > span { font-size: 7px; letter-spacing: 1.3px; color: #a5bfa5; }
.command-panel button { color: #cee7ab; border: 1px solid #ffffff30; padding: 5px 9px; border-radius: 6px; background: transparent; font-size: 10px; min-height: 34px; }
.command-panel pre { margin: 13px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; font-size: 11px; line-height: 2.1; }
.how-it-works { padding: 28px 0 5px; }
.how-it-works > h3 { font-size: 19px; margin-bottom: 20px; }
.signal-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 18px; align-items: center; }
.signal-flow > div { padding: 18px; background: #eaf0e5; border: 1px solid #dce5d4; border-radius: 12px; min-height: 137px; }
.flow-step { display: block; font-size: 8px; color: #607650; letter-spacing: 1.2px; margin-bottom: 10px; }
.signal-flow strong { display: block; font-size: 12px; font-weight: 650; }
.signal-flow p { font-size: 12px; color: var(--muted); line-height: 1.8; margin: 7px 0 0; }
.flow-arrow { color: #718964; width: 19px; height: 19px; }
.source-download { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 0; margin-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.source-download a { color: var(--green); font-weight: 650; white-space: nowrap; }
footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); padding: 25px 0; margin-top: 22px; color: var(--muted); font-size: 10px; }
footer > span { font-size: 16px; font-weight: 650; letter-spacing: -.6px; color: var(--ink); }
footer p { margin: 0; }
footer a { white-space: nowrap; display: inline-flex; align-items: center; gap: 7px; }
footer > span { display: inline-flex; align-items: center; gap: 5px; }
.notice { position: fixed; left: calc(50% + 112px); bottom: 24px; transform: translateX(-50%); max-width: min(600px, calc(100% - 270px)); width: max-content; padding: 15px 20px; background: #193d2c; color: #fff; font-size: 12px; border: 1px solid #486950; border-radius: 12px; box-shadow: 0 8px 40px #12251f25; z-index: 30; }
@media (min-width: 1768px) { main { margin-right: auto; margin-left: calc(224px + (100vw - 1768px)/2); } }
@media (max-width: 1120px) {
  .sidebar { width: 190px; padding: 28px 15px; }
  .brand { font-size: 18px; }
  .brand small { font-size: 6px; }
  .brand-mark { width: 37px; height: 39px; }
  main { margin-left: 190px; padding: 0 28px; }
  .hero-copy { padding: 30px; }
  .track-loop { left: 5px; }
  .loop-two { left: -21px; }
  .loop-three { left: -47px; }
  .track-word { left: 40px; font-size: 24px; }
  .track-marker { left: 81px; }
  .track-label { left: 56px; }
  .device-panel, .download-card { padding: 20px; }
  .routine-content { padding: 16px; }
  .routine-content p { min-height: 70px; }
  .routine-toolbar { align-items: flex-start; }
  .record-source { flex-direction: column; gap: 5px; align-items: flex-start; }
  .section-index { display: none; }
  .guide-title { flex-direction: column; gap: 12px; }
  .notice { left: calc(50% + 95px); max-width: calc(100% - 240px); }
}
@media (max-width: 800px) {
  .sidebar { position: relative; width: auto; padding: 18px 22px; flex-direction: row; background: #12251f; }
  .sidebar-bottom { display: none; }
  .sidebar nav { position: fixed; bottom: 0; left: 0; right: 0; margin: 0; padding: 10px 8px calc(9px + env(safe-area-inset-bottom)); background: #12251f; flex-direction: row; gap: 2px; border-top: 1px solid #385143; }
  .sidebar nav a { flex: 1; min-width: 0; flex-direction: column; gap: 4px; padding: 6px 2px; font-size: 9px; border-radius: 8px; }
  .sidebar nav a svg { width: 19px; height: 19px; }
  .sidebar nav a[aria-current] { background: #d0ee8b; }
  main { margin: 0; padding: 0 22px 90px; }
  .page-header { min-height: 80px; margin-bottom: 22px; gap: 12px; }
  .page-header p { font-size: 12px; }
  .local-badge { font-size: 9px; padding: 6px 8px; }
  .page-header > .button { font-size: 10px; padding: 8px 10px; min-height: 36px; }
  h1 { font-size: 46px; }
  .welcome-card { min-height: 310px; }
  .hero-copy { padding: 30px; }
  .track-word { left: 60px; }
  .track-marker { left: 100px; }
  .track-label { left: 76px; }
  .routine-content p { min-height: 52px; }
  .section { margin-top: 34px; }
  .notice { left: 50%; bottom: 95px; max-width: calc(100% - 32px); }
}
@media (max-width: 560px) {
  main { padding: 0 16px 90px; }
  .sidebar { padding: 15px 18px; }
  .brand { font-size: 19px; }
  .brand small { font-size: 6px; }
  .brand-mark { width: 36px; height: 36px; border-radius: 11px; font-size: 23px; }
  .page-header { min-height: 77px; margin-bottom: 17px; }
  .page-header .eyebrow { font-size: 6px; letter-spacing: 1.2px; }
  .page-header p { font-size: 11px; }
  .local-badge { font-size: 8px; padding: 6px 8px; }
  .page-header:has(#install-app:not([hidden])) .local-badge { display: none; }
  .welcome-card { min-height: 290px; grid-template-columns: 1fr; border-radius: 16px; }
  .hero-copy { padding: 27px 25px; }
  .hero-tag { font-size: 7px; letter-spacing: 1.5px; }
  h1 { font-size: 45px; letter-spacing: -2px; margin-top: 15px; }
  .hero-copy p { font-size: 13px; max-width: 280px; }
  .hero-copy .button { min-height: 46px; font-size: 12px; }
  .track-art { position: absolute; top: 0; bottom: 0; left: 78%; width: 180px; opacity: .22; pointer-events: none; }
  .track-word, .track-label, .track-marker { display: none; }
  .download-callout { padding: 17px; flex-wrap: wrap; gap: 12px; }
  .callout-icon { width: 34px; height: 38px; border-radius: 9px; }
  .download-callout > span:nth-child(2) { flex: 1; }
  .download-callout strong { font-size: 13px; }
  .download-callout > span:nth-child(2) > span:last-child { font-size: 11px; }
  .callout-action { width: 100%; border-top: 1px solid #d7e1ca; margin: 2px 0 0; padding-top: 11px; justify-content: space-between; }
  h2 { font-size: 24px; }
  .eyebrow { font-size: 8px; letter-spacing: 1.4px; }
  .section-heading { margin-bottom: 17px; gap: 10px; }
  .routine-toolbar { flex-direction: column; gap: 14px; margin-bottom: 16px; }
  .record-source { width: 100%; flex-direction: row; align-items: center; gap: 10px; }
  .record-source label { font-size: 9px; }
  .record-source select { flex: 1; min-width: 0; width: auto; font-size: 10px; padding: 10px; }
  .routine-grid { grid-template-columns: 1fr; gap: 12px; }
  .routine-card { display: grid; grid-template-columns: 82px minmax(0, 1fr); }
  .routine-art { height: 100%; padding: 17px 11px; }
  .routine-art > span { font-size: 6px; letter-spacing: .8px; }
  .routine-art strong { font-size: 35px; margin-top: 14px; }
  .routine-art strong small { display: block; font-size: 9px; margin: 5px 0 0; }
  .routine-art::after { top: 70px; right: -100px; }
  .routine-content { padding: 15px; }
  .routine-content h3 { font-size: 18px; margin-top: 7px; }
  .routine-content p { min-height: 0; font-size: 12px; margin-bottom: 12px; }
  .routine-content .button { min-height: 44px; font-size: 12px; padding: 9px 12px; }
  .device-grid, .download-grid { grid-template-columns: 1fr; gap: 15px; }
  .device-panel, .download-card { padding: 21px; }
  .device-panel h3 { font-size: 21px; }
  .metrics { gap: 10px; margin: 20px 0; }
  .metrics strong { font-size: 32px; }
  .metrics > div > span { font-size: 7px; letter-spacing: .2px; }
  .metrics strong small { font-size: 12px; }
  .session-panel { padding: 21px; }
  .session-panel h2 { font-size: 20px; }
  .session-panel .section-heading { align-items: flex-start; }
  .speed-row input { width: 85px; }
  .speed-row .button { font-size: 10px; padding: 10px; }
  .summary { padding: 20px 6px; }
  .summary > div { padding-left: 10px; padding-right: 6px; }
  .summary strong { font-size: 27px; }
  .summary span { display: block; font-size: 8px; }
  .history-row { flex-wrap: wrap; gap: 8px; }
  .history-values { text-align: left; }
  .download-card > p { font-size: 13px; }
  .download-card .button { width: 100%; font-size: 12px; }
  .watch-guide { padding: 21px 18px; margin-top: 17px; }
  .guide-title h3 { font-size: 21px; }
  .setup-steps > li { gap: 12px; margin-bottom: 22px; }
  .setup-steps > li::before { width: 25px; height: 25px; font-size: 8px; }
  .setup-steps h4 { font-size: 14px; }
  .setup-steps p { font-size: 12px; }
  .command-panel { padding: 13px; margin-left: -37px; }
  .command-panel pre { font-size: 10px; }
  .command-panel > div > span { font-size: 6px; }
  .command-panel button { font-size: 10px; }
  .signal-flow { grid-template-columns: 1fr; gap: 10px; }
  .signal-flow > div { min-height: auto; }
  .flow-arrow { justify-self: center; transform: rotate(90deg); }
  .source-download { flex-direction: column; align-items: flex-start; gap: 10px; }
  footer { flex-wrap: wrap; gap: 9px; padding-bottom: 15px; }
  footer p { font-size: 8px; }
  footer a { font-size: 9px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button, .sidebar nav a { transition: none; }
}