/* Native-feeling typography, quiet mint accents and readable grouped surfaces. */
:root {
  color-scheme: light;
  --bg: #f6f8f7;
  --surface: #ffffff;
  --surface-soft: #eef3f0;
  --text: #182923;
  --muted: #596960;
  --accent: #006354;
  --mint: #66e6c4;
  --border: #dae3de;
  --wash: #e1f3eb;
  --header: rgb(246 248 247 / 90%);
  --shadow: 0 24px 80px -28px rgb(23 74 56 / 24%);
  --radius: 28px;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0e1713;
    --surface: #17241d;
    --surface-soft: #1d2d24;
    --text: #edf5f0;
    --muted: #afc0b5;
    --accent: #66e6c4;
    --border: #304439;
    --wash: #203d31;
    --header: rgb(14 23 19 / 91%);
    --shadow: 0 24px 80px -28px rgb(0 0 0 / 50%);
  }
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f8f7; --surface: #ffffff; --surface-soft: #eef3f0;
  --text: #182923; --muted: #596960; --accent: #006354;
  --border: #dae3de; --wash: #e1f3eb;
  --header: rgb(246 248 247 / 90%); --shadow: 0 24px 80px -28px rgb(23 74 56 / 24%);
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0e1713; --surface: #17241d; --surface-soft: #1d2d24;
  --text: #edf5f0; --muted: #afc0b5; --accent: #66e6c4;
  --border: #304439; --wash: #203d31;
  --header: rgb(14 23 19 / 91%); --shadow: 0 24px 80px -28px rgb(0 0 0 / 50%);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 105px; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-underline-offset: 4px; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
button:not(:disabled), summary { cursor: pointer; }
button:disabled { opacity: .55; cursor: default; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
[hidden] { display: none !important; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.12; font-weight: 650; }
h2 { font-size: clamp(2rem, 3.8vw, 3rem); letter-spacing: -.045em; }
h3 { font-size: 1.4rem; letter-spacing: -.025em; }
p { text-wrap: pretty; }
.container { max-width: 1180px; width: calc(100% - 96px); margin-inline: auto; }
.section-space { padding-top: 112px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 10; padding: 12px 20px; border-radius: 14px; background: var(--text); color: var(--bg); }
.skip-link:focus { top: 14px; }
.app-icon { border-radius: 23%; flex-shrink: 0; }
.wordmark { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-size: 1.2rem; font-weight: 720; letter-spacing: -.04em; }
.wordmark-dot { color: var(--accent); }
.site-header { position: sticky; top: 0; z-index: 5; background: var(--header); border-bottom: 1px solid var(--border); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); }
.header-inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a, .site-footer nav a { color: var(--muted); text-decoration: none; font-size: .875rem; font-weight: 550; min-height: 44px; display: inline-flex; align-items: center; }
.main-nav a:hover, .site-footer nav a:hover { color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 15px; }
.appearance-button { display: flex; align-items: center; gap: 7px; color: var(--muted); background: none; border: 0; min-height: 44px; padding: 4px 7px; font-size: .8rem; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 12px; min-height: 54px; padding: 15px 24px; border: 0; border-radius: 999px; font-size: .93rem; font-weight: 650; line-height: 1.35; text-align: center; text-decoration: none; transition: transform .18s ease, opacity .18s ease; }
.button:hover { transform: translateY(-2px); opacity: .88; }
.button:active { transform: translateY(0); }
.button-primary { background: var(--mint); color: #112c22; }
.button-ink { background: var(--text); color: var(--bg); }
.button-small { min-height: 44px; padding: 10px 17px; font-size: .83rem; }
.eyebrow { display: flex; align-items: center; gap: 8px; color: var(--accent); font-size: .78rem; font-weight: 650; line-height: 1.5; letter-spacing: .09em; text-transform: uppercase; }
.status-dot { height: 7px; width: 7px; background: var(--accent); border-radius: 50%; }
.hero { display: grid; grid-template-columns: 1.16fr .84fr; align-items: center; gap: 70px; padding-top: 84px; padding-bottom: 32px; }
.hero h1 { font-size: clamp(3.1rem, 5.4vw, 4.9rem); letter-spacing: -.065em; line-height: 1.04; margin-top: 24px; }
.hero h1 span { color: var(--accent); }
.hero-description { margin-top: 24px; max-width: 485px; color: var(--muted); font-size: 1.15rem; line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; margin-top: 32px; }
.text-link { display: inline-flex; gap: 8px; align-items: center; font-weight: 600; font-size: .9rem; text-decoration: none; min-height: 44px; }
.text-link:hover { text-decoration: underline; }
.hero-note { margin-top: 19px; color: var(--muted); font-size: .8rem; line-height: 1.8; }
.hero-note span { color: var(--muted); }
.hero-principles { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 35px; font-size: .8rem; color: var(--muted); }
.hero-principles > span { display: inline-flex; align-items: center; gap: 6px; }
.hero-principles svg { color: var(--accent); }
.hero-visual { position: relative; padding: 24px 0; }
.visual-orbit { position: absolute; inset: -30px -25px; border-radius: 50%; background: radial-gradient(ellipse at center, var(--wash) 0%, var(--wash) 28%, transparent 69%); }
.timer-preview { position: relative; max-width: 355px; margin-inline: auto; padding: 28px; border: 1px solid var(--border); border-radius: 36px; background: var(--surface); box-shadow: var(--shadow); }
.preview-heading { display: flex; align-items: center; gap: 10px; }
.preview-icon { display: flex; justify-content: center; align-items: center; height: 39px; width: 39px; border-radius: 12px; color: var(--accent); background: var(--wash); flex-shrink: 0; }
.small-label { color: var(--muted); font-size: .66rem; line-height: 1.5; }
.preview-heading h2 { font-size: .94rem; letter-spacing: -.02em; line-height: 1.5; }
.preview-duration { margin-left: auto; font-size: .72rem; color: var(--muted); white-space: nowrap; }
.timer-display { position: relative; width: 228px; height: 228px; max-width: 100%; margin: 27px auto 23px; }
.timer-ring { width: 100%; height: 100%; transform: rotate(-90deg); fill: none; stroke-width: 8; }
.timer-track { stroke: var(--wash); }
.timer-progress { stroke: var(--accent); stroke-linecap: round; transition: stroke-dashoffset .2s linear; }
.timer-value { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 8px; }
#timer-countdown { font-size: 3.2rem; font-weight: 650; letter-spacing: -.05em; font-variant-numeric: tabular-nums; line-height: 1.15; }
#timer-status { font-size: .75rem; color: var(--muted); }
.area-guide { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.area { padding: 7px 5px; border-radius: 9px; border: 1px solid transparent; background: var(--surface-soft); color: var(--muted); text-align: center; font-size: .68rem; }
.area.is-active { background: var(--wash); border-color: var(--accent); color: var(--accent); font-weight: 650; }
.area.is-done { color: var(--accent); }
.preview-tip { margin-top: 14px; color: var(--muted); text-align: center; font-size: .73rem; }
.preview-controls { display: flex; gap: 10px; margin-top: 20px; }
.preview-controls .button { flex: 1; min-height: 46px; padding: 11px 15px; font-size: .83rem; }
.preview-reset { border: 1px solid var(--border); background: var(--surface); color: var(--muted); min-width: 46px; min-height: 46px; border-radius: 50%; display: flex; justify-content: center; align-items: center; }
.preview-caption { margin-top: 13px; font-size: .65rem; text-align: center; color: var(--muted); }
.watch-note { position: relative; display: flex; justify-content: center; gap: 9px; align-items: center; margin-top: 25px; color: var(--muted); font-size: .76rem; }
.watch-note svg { color: var(--accent); }
.section-heading { max-width: 660px; margin-bottom: 36px; }
.section-heading h2 { margin-top: 12px; }
.section-heading > p:last-child:not(.eyebrow) { color: var(--muted); margin-top: 15px; max-width: 510px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.feature-card { display: flex; flex-direction: column; padding: 29px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.feature-icon { display: flex; justify-content: center; align-items: center; width: 44px; height: 44px; border-radius: 14px; background: var(--wash); color: var(--accent); }
.feature-icon svg { width: 25px; height: 25px; }
.feature-index { color: var(--muted); font-size: .62rem; font-weight: 600; letter-spacing: .08em; margin-top: 28px; }
.feature-card h3 { margin-top: 10px; font-size: 1.38rem; line-height: 1.25; }
.feature-card p { color: var(--muted); font-size: .9rem; margin-top: 16px; margin-bottom: 27px; }
.mini-areas { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-top: auto; }
.mini-areas span { padding: 7px; font-size: .63rem; text-align: center; background: var(--surface-soft); color: var(--muted); border-radius: 8px; }
.mini-areas span:first-child { background: var(--wash); color: var(--accent); }
.reminder-example { display: flex; align-items: center; gap: 9px; margin-top: auto; padding: 10px; border-radius: 14px; background: var(--surface-soft); }
.mini-sun { color: var(--accent); font-size: 22px; }
.reminder-example strong { font-size: .64rem; font-weight: 600; display: block; }
.reminder-example div > span { display: block; font-size: .58rem; color: var(--muted); }
.mini-toggle { display: block; margin-left: auto; background: var(--accent); min-width: 26px; height: 16px; padding: 3px; border-radius: 10px; }
.mini-toggle::after { content: ""; width: 10px; height: 10px; display: block; margin-left: auto; background: var(--surface); border-radius: 50%; }
.mini-chart { width: 100%; height: 62px; margin-top: auto; fill: var(--accent); }
.chart-base { stroke: var(--border); fill: none; }
.chart-today { opacity: .45; }
.health-section { display: grid; grid-template-columns: .85fr 1.15fr; gap: 85px; align-items: center; }
.health-art { position: relative; display: flex; align-items: center; justify-content: center; min-height: 300px; overflow: hidden; }
.health-heart { position: relative; display: flex; align-items: center; justify-content: center; width: 132px; height: 132px; border: 1px solid var(--border); border-radius: 36px; background: var(--surface); box-shadow: var(--shadow); z-index: 1; color: #c44761; }
.health-heart svg { width: 76px; height: 76px; }
.health-orbit { position: absolute; border: 1px solid var(--border); border-radius: 50%; }
.health-orbit-one { width: 232px; height: 232px; }
.health-orbit-two { width: 300px; height: 300px; }
.health-art-label { position: absolute; bottom: 3px; z-index: 2; padding: 5px 12px; background: var(--bg); color: var(--muted); font-size: .7rem; }
.health-copy h2 { margin-top: 13px; }
.health-copy > p:not(.eyebrow) { margin-top: 20px; color: var(--muted); max-width: 500px; }
.check-list { list-style: none; padding: 0; margin: 23px 0 12px; font-size: .9rem; }
.check-list li { margin: 7px 0; padding-left: 24px; position: relative; }
.check-list li::before { content: "✓"; color: var(--accent); position: absolute; left: 0; }
.faq { max-width: 850px; }
.faq-list { border-top: 1px solid var(--border); }
.faq-list details { border-bottom: 1px solid var(--border); }
.faq-list summary { display: flex; justify-content: space-between; align-items: center; gap: 24px; list-style: none; padding: 22px 0; font-weight: 600; font-size: 1rem; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary > span { color: var(--accent); font-size: 1.5rem; font-weight: 400; flex-shrink: 0; transition: transform .2s; }
.faq-list details[open] summary > span { transform: rotate(45deg); }
.faq-list details > div { color: var(--muted); max-width: 690px; padding: 0 32px 24px 0; font-size: .94rem; }
.faq-list a { display: inline; }
.download-card { display: flex; align-items: center; gap: 26px; padding: 38px; border-radius: 32px; border: 1px solid var(--border); background: var(--wash); }
.download-card h2 { font-size: clamp(1.65rem, 2.5vw, 2.2rem); margin-top: 8px; }
.download-card p:last-child { margin-top: 10px; color: var(--muted); font-size: .9rem; }
.download-card > .button { margin-left: auto; flex-shrink: 0; }
.privacy-section { padding-bottom: 72px; }
.privacy-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 34px 50px; }
.privacy-grid h3 { font-size: 1.06rem; margin-bottom: 13px; }
.privacy-grid p { font-size: .875rem; color: var(--muted); margin-top: 12px; }
.contact-section { display: flex; justify-content: space-between; align-items: center; gap: 30px; border-top: 1px solid var(--border); padding-top: 55px; padding-bottom: 58px; }
.contact-section h2 { font-size: clamp(1.6rem, 2.5vw, 2.05rem); margin-top: 10px; }
.contact-section p:last-child { font-size: .9rem; color: var(--muted); margin-top: 12px; }
.contact-link { display: inline-flex; align-items: center; gap: 14px; text-decoration: none; font-size: 1.08rem; font-weight: 600; min-height: 44px; }
.contact-link:hover { text-decoration: underline; }
.site-footer { border-top: 1px solid var(--border); min-height: 110px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; column-gap: 20px; row-gap: 10px; padding-block: 28px; }
.site-footer .wordmark { font-size: 1rem; }
.site-footer > p, .site-footer > small { color: var(--muted); font-size: .75rem; }
.site-footer nav { display: flex; gap: 23px; }
.not-found { max-width: 620px; margin: 16vh auto; padding: 25px; }
.not-found .eyebrow { margin-top: 22px; }
.not-found h1 { font-size: clamp(2.5rem, 7vw, 4rem); letter-spacing: -.05em; margin-top: 16px; }
.not-found p:not(.eyebrow) { color: var(--muted); margin-block: 24px; }
@media (min-width: 1500px) { .hero { padding-top: 110px; } }
@media (max-width: 1050px) {
  .container { width: calc(100% - 64px); }
  .hero { gap: 34px; }
  .hero h1 { font-size: clamp(2.85rem, 5.9vw, 4.7rem); }
  .hero-actions { gap: 15px; }
  .main-nav { gap: 18px; }
  .appearance-button span { display: none; }
  .feature-card { padding: 24px; }
  .health-section { gap: 40px; }
  .download-card { flex-wrap: wrap; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 125px; }
  .container { width: calc(100% - 40px); }
  .header-inner { flex-wrap: wrap; gap: 0; padding-top: 13px; }
  .header-actions { margin-left: auto; gap: 8px; }
  .main-nav { order: 3; width: 100%; justify-content: center; gap: 32px; padding-top: 3px; }
  .main-nav a { font-size: .8rem; }
  .wordmark { font-size: 1.07rem; }
  .wordmark .app-icon { width: 33px; height: 33px; }
  .button-small { padding: 10px 14px; }
  .hero { grid-template-columns: 1fr; gap: 30px; padding-top: 48px; }
  .hero-copy { max-width: 570px; margin-inline: auto; }
  .hero h1 { font-size: clamp(2.7rem, 8.4vw, 4.6rem); }
  .hero-description { font-size: 1.06rem; }
  .hero-visual { width: 100%; max-width: 470px; margin-inline: auto; }
  .visual-orbit { inset: -15px 0; }
  .section-space { padding-top: 75px; }
  .feature-grid { grid-template-columns: 1fr; gap: 16px; }
  .feature-card { padding: 27px; }
  .feature-card h3 { font-size: 1.6rem; max-width: 300px; }
  .feature-index { margin-top: 20px; }
  .feature-card p { max-width: 430px; margin-bottom: 23px; }
  .mini-areas, .reminder-example, .mini-chart { max-width: 300px; width: 100%; }
  .health-section { grid-template-columns: 1fr; gap: 35px; }
  .health-art { min-height: 265px; }
  .health-orbit-two { width: 260px; height: 260px; }
  .health-orbit-one { width: 200px; height: 200px; }
  .health-heart { width: 117px; height: 117px; }
  .download-card { padding: 29px; gap: 22px; }
  .download-card > div { width: 100%; }
  .download-card > .button { margin-left: 0; }
  .privacy-grid { grid-template-columns: 1fr; gap: 28px; }
  .contact-section { flex-direction: column; align-items: flex-start; gap: 20px; padding-block: 40px; }
  .site-footer { justify-content: flex-start; column-gap: 24px; }
  .site-footer > p { margin-left: auto; }
  .site-footer nav { width: 100%; order: 3; }
  .site-footer > small { order: 4; }
}
@media (max-width: 360px) {
  .container { width: calc(100% - 32px); }
  .header-actions { gap: 2px; }
  .wordmark { gap: 6px; font-size: 1rem; }
  .wordmark .app-icon { width: 28px; height: 28px; }
  .button-small { font-size: .75rem; padding: 9px 10px; }
  .hero h1 { font-size: 2.62rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-principles { gap: 12px; font-size: .73rem; }
  .timer-preview { padding: 23px; }
  .preview-caption { font-size: .62rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .button:hover { transform: none; }
}
@media (prefers-contrast: more) {
  :root { --muted: var(--text); }
  .feature-card, .timer-preview, .download-card { border-color: var(--text); }
}