/* Hydodo navigation: calm, local-first personal entry point. */
:root {
  color-scheme: light dark;
  --page: #f3f5f2;
  --surface: #fbfcfa;
  --surface-soft: #edf1ec;
  --ink: #18231e;
  --muted: #5e6d64;
  --faint: #76847b;
  --line: #d7ded8;
  --accent: #176443;
  --accent-strong: #104a31;
  --accent-soft: #dcebe1;
  --shadow: 0 14px 34px rgb(22 41 31 / 0.07);
  --radius: 14px;
}

[data-theme="dark"] {
  color-scheme: dark;
  --page: #121a16;
  --surface: #18211c;
  --surface-soft: #202c25;
  --ink: #eef4ef;
  --muted: #b2c0b7;
  --faint: #91a096;
  --line: #334239;
  --accent: #8dc7a4;
  --accent-strong: #b9e2c9;
  --accent-soft: #253d2f;
  --shadow: 0 14px 34px rgb(0 0 0 / 0.22);
}

* { box-sizing: border-box; }
html { min-height: 100%; scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; min-height: 100dvh; background: var(--page); color: var(--ink); font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; line-height: 1.55; }
a { color: inherit; }
button, input { font: inherit; }

.app-shell { min-height: 100dvh; }
.side-nav { position: fixed; inset: 0 auto 0 0; z-index: 2; display: flex; width: 220px; flex-direction: column; padding: 28px 20px 22px; background: var(--surface); border-right: 1px solid var(--line); }
.brand { color: var(--ink); font-size: 1.15rem; font-weight: 760; letter-spacing: -0.045em; text-decoration: none; }
.brand-mark { display: inline-block; color: var(--accent); margin-right: 7px; font-size: .8em; letter-spacing: -.16em; }
.brand-subtitle { margin: 6px 0 0; color: var(--muted); font-size: .75rem; }
.nav-list { display: grid; gap: 5px; margin: 46px 0 0; padding: 0; list-style: none; }
.nav-list a { display: block; padding: 9px 10px; border-radius: 8px; color: var(--muted); font-size: .9rem; font-weight: 650; text-decoration: none; }
.nav-list a:hover, .nav-list a[aria-current="page"] { color: var(--accent-strong); background: var(--accent-soft); }
.nav-foot { margin-top: auto; color: var(--faint); font-size: .73rem; line-height: 1.6; }
.nav-foot a { color: var(--muted); text-underline-offset: 3px; }

.main-area { margin-left: 220px; }
.topbar { display: flex; align-items: center; justify-content: space-between; width: min(1200px, calc(100% - 64px)); min-height: 78px; margin: 0 auto; border-bottom: 1px solid var(--line); }
.today { color: var(--muted); font-size: .84rem; }
.theme-toggle { display: inline-flex; align-items: center; gap: 9px; min-height: 36px; padding: 7px 11px; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); background: var(--surface); cursor: pointer; }
.theme-toggle:hover { border-color: var(--accent); color: var(--accent-strong); }
.theme-toggle:active { transform: translateY(1px); }
.theme-icon { display: none; }

.content { width: min(1200px, calc(100% - 64px)); margin: 0 auto; padding: 62px 0 74px; }
.hero { display: grid; grid-template-columns: minmax(0, 1fr) 370px; align-items: end; gap: 48px; padding-bottom: 56px; }
.section-label { margin: 0 0 14px; color: var(--accent); font-size: .72rem; font-weight: 760; letter-spacing: .1em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 720px; margin-bottom: 18px; font-size: clamp(2.55rem, 5vw, 4.2rem); line-height: 1.08; letter-spacing: -.02em; }
.lede { max-width: 560px; margin: 0; color: var(--muted); font-size: 1.06rem; }
.search-box { position: relative; align-self: center; }
.search-box label { display: block; margin-bottom: 9px; color: var(--muted); font-size: .82rem; font-weight: 670; }
.search-box input { width: 100%; min-height: 48px; padding: 0 40px 0 14px; border: 1px solid var(--line); border-radius: 10px; outline: 0; color: var(--ink); background: var(--surface); box-shadow: 0 2px 8px rgb(20 37 28 / 0.03); }
.search-box input::placeholder { color: var(--faint); }
.search-box input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.shortcut { position: absolute; right: 11px; bottom: 11px; color: var(--faint); font-size: .73rem; }

.guide-grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(260px, .7fr); gap: 18px; }
.pregnancy-feature { position: relative; isolation: isolate; min-height: 312px; overflow: hidden; padding: 34px; border-radius: var(--radius); color: #eff8f1; background: #184d35; text-decoration: none; box-shadow: var(--shadow); }
.pregnancy-feature::before { position: absolute; z-index: -1; right: -64px; top: -92px; width: 278px; height: 278px; border: 1px solid rgb(230 248 235 / .28); border-radius: 50%; content: ""; }
.pregnancy-feature::after { position: absolute; z-index: -1; right: 64px; bottom: -83px; width: 210px; height: 210px; border: 1px solid rgb(230 248 235 / .18); border-radius: 50%; content: ""; }
.feature-kicker { color: #c8e5d1; font-size: .77rem; font-weight: 700; letter-spacing: .08em; }
.pregnancy-feature h2 { max-width: 340px; margin: 19px 0 12px; font-size: clamp(1.8rem, 3.2vw, 2.7rem); line-height: 1.08; letter-spacing: -.055em; }
.pregnancy-feature p { max-width: 330px; margin: 0; color: #d8eadf; font-size: .95rem; }
.feature-link { position: absolute; bottom: 30px; left: 34px; color: #fff; font-weight: 700; font-size: .88rem; }
.feature-image { position: absolute; inset: 0 0 0 auto; z-index: -1; width: 45%; height: 100%; object-fit: cover; object-position: center; }
.feature-image::after { content: ""; }

.life-summary { display: flex; flex-direction: column; justify-content: space-between; min-height: 312px; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.life-summary h2 { margin-bottom: 12px; font-size: 1.48rem; line-height: 1.12; letter-spacing: -.045em; }
.life-summary p { color: var(--muted); font-size: .92rem; }
.text-link { color: var(--accent-strong); font-size: .88rem; font-weight: 720; text-decoration: none; }
.text-link:hover { text-decoration: underline; text-underline-offset: 4px; }

.resources { margin-top: 74px; }
.resources-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 24px; }
.resources h2 { margin: 0; font-size: clamp(1.65rem, 3vw, 2.25rem); letter-spacing: -.055em; }
.resource-note { margin: 0; color: var(--muted); font-size: .88rem; }
.resource-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 48px; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.resource-item { border-bottom: 1px solid var(--line); }
.resource-item a { display: grid; grid-template-columns: 95px minmax(0, 1fr) 16px; gap: 13px; align-items: baseline; padding: 20px 0; color: inherit; text-decoration: none; }
.resource-item a:hover .resource-name { color: var(--accent); }
.wordmark { color: var(--accent); font-size: .75rem; font-weight: 800; letter-spacing: -.03em; }
.resource-name { display: block; font-weight: 760; letter-spacing: -.02em; }
.resource-description { display: block; margin-top: 3px; color: var(--muted); font-size: .83rem; }
.arrow { color: var(--faint); font-size: 1rem; }
.no-results { display: none; grid-column: 1 / -1; padding: 28px 0; color: var(--muted); }
.no-results[hidden] { display: none; }
.no-results:not([hidden]) { display: block; }
.is-filtered .guide-grid, .is-filtered .resources-heading { display: none; }

.life-page .content { max-width: 900px; }
.life-page .hero { grid-template-columns: minmax(0, 1fr) 280px; padding-bottom: 45px; }
.life-page h1 { font-size: clamp(2.45rem, 5vw, 3.8rem); }
.life-hero-image { width: 100%; height: 260px; border-radius: var(--radius); object-fit: cover; object-position: center; box-shadow: var(--shadow); }
.life-index { margin-top: 12px; padding-top: 38px; border-top: 1px solid var(--line); }
.life-index h2 { margin: 0 0 20px; font-size: 1.65rem; letter-spacing: -.045em; }
.life-card { display: grid; grid-template-columns: 66px minmax(0, 1fr) auto; gap: 20px; align-items: start; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); text-decoration: none; box-shadow: 0 2px 12px rgb(20 37 28 / .03); }
.life-card:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); box-shadow: var(--shadow); }
.life-card-index { color: var(--accent); font-size: .76rem; font-weight: 800; letter-spacing: .08em; }
.life-card h3 { margin: 0 0 7px; font-size: 1.2rem; letter-spacing: -.025em; }
.life-card p { margin: 0; color: var(--muted); font-size: .9rem; }
.page-footer { width: min(1200px, calc(100% - 64px)); margin: 0 auto; padding: 22px 0 30px; color: var(--faint); font-size: .78rem; }
.page-footer a { color: var(--muted); text-underline-offset: 3px; }

a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
@media (max-width: 820px) {
  .side-nav { position: static; width: auto; min-height: 0; padding: 16px 20px 8px; border-right: 0; border-bottom: 1px solid var(--line); }
  .brand-subtitle, .nav-foot { display: none; }
  .nav-list { display: flex; overflow-x: auto; gap: 3px; margin: 14px -4px 0; padding: 0 4px 5px; }
  .nav-list a { white-space: nowrap; }
  .main-area { margin-left: 0; }
  .topbar, .content, .page-footer { width: min(100% - 40px, 1200px); }
}
@media (max-width: 700px) {
  .topbar { min-height: 64px; }
  .today { font-size: .75rem; }
  .theme-toggle { min-height: 34px; padding: 6px 9px; font-size: .81rem; }
  .content { padding: 44px 0 54px; }
  .hero, .life-page .hero { grid-template-columns: 1fr; gap: 30px; padding-bottom: 42px; }
  h1 { font-size: clamp(2.3rem, 12vw, 3.2rem); }
  .guide-grid, .resource-list { grid-template-columns: 1fr; }
  .pregnancy-feature, .life-summary { min-height: 280px; }
  .feature-image { width: 48%; }
  .life-hero-image { height: 210px; }
  .resources { margin-top: 54px; }
  .resources-heading { display: block; }
  .resource-note { margin-top: 8px; }
  .resource-item a { grid-template-columns: 82px minmax(0, 1fr) 14px; gap: 9px; }
  .life-card { grid-template-columns: 1fr; gap: 11px; }
  .life-card .arrow { display: none; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; } }

/* Final navigation density and small-screen artwork layout. */
.content { padding-top:36px; }
.hero { padding-bottom:32px; }
h1 { font-size:clamp(2rem,3vw,2.8rem); line-height:1.2; letter-spacing:-.02em; }
.pregnancy-feature,.life-summary { min-height:260px; }
.pregnancy-feature h2 { font-size:2rem; }
.pregnancy-feature p { max-width:50%; }
.resources { margin-top:40px; }
[hidden] { display:none !important; }
.life-page h1 { font-size:clamp(2rem,3vw,2.8rem); }
@media(max-width:700px) {
  .content { padding-top:28px; }
  h1 { font-size:2rem; }
  .hero { gap:24px; padding-bottom:28px; }
  .pregnancy-feature { display:flex; flex-direction:column; padding:0 24px 24px; }
  .feature-image { position:relative; inset:auto; width:calc(100% + 48px); height:160px; margin:0 -24px 24px; z-index:0; object-position:center 60%; }
  .pregnancy-feature h2 { font-size:1.8rem; }
  .pregnancy-feature p { max-width:none; }
  .feature-link { position:static; margin-top:24px; }
  .life-summary { min-height:200px; padding:24px; }
  .resources { margin-top:36px; }
}

/* Life belongs beneath Home and uses its own content navigation. */
.life-page .main-area { margin-left: 0; }