:root {
  color-scheme: light;
  --paper: #f7f5ed;
  --ink: #1d3429;
  --muted: #4e5f53;
  --line: #c9cfc0;
  --forest: #214735;
  --serif: "Noto Serif TC", "Songti TC", "PMingLiU", serif;
  --sans: "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 1rem/1.75 var(--sans); }
img { display: block; width: 100%; height: auto; }
a { color: inherit; text-underline-offset: .24em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid #a96b23; outline-offset: 4px; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { font-family: var(--serif); line-height: 1.24; }
section[id] { scroll-margin-top: 1rem; }
.shell { width: min(100% - 5rem, 76rem); margin-inline: auto; }
.skip { position: absolute; top: .5rem; left: .5rem; transform: translateY(-160%); padding: .6rem 1rem; background: white; z-index: 2; }
.skip:focus { transform: none; }

.site-header { display: flex; justify-content: space-between; align-items: center; gap: 1.25rem; padding-block: 1.05rem; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; gap: .65rem; align-items: center; flex: none; text-decoration: none; font: 700 1.35rem/1.12 var(--serif); letter-spacing: .09em; }
.brand svg { width: 2.7rem; height: 2.7rem; stroke: currentColor; stroke-width: 1.4; }
.brand small, .footer small { display: block; margin-top: .24rem; font: 700 .62rem/1.2 var(--sans); letter-spacing: .19em; }
nav { display: flex; flex-wrap: wrap; gap: .35rem clamp(.8rem, 2.4vw, 2rem); }
nav a { padding-block: .35rem; text-decoration: none; font-size: .91rem; font-weight: 650; }
nav a:hover { text-decoration: underline; }

.hero { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: clamp(1.5rem, 5vw, 4.7rem); padding-block: clamp(2.5rem, 6vw, 5.25rem); }
.eyebrow { color: var(--muted); font-size: .72rem; font-weight: 750; letter-spacing: .15em; }
.hero h1 { font-size: clamp(2.1rem, 4.55vw, 4.45rem); letter-spacing: -.045em; margin-block: 1.2rem; }
.hero h1 em { color: #3c654d; font-style: normal; }
.intro { max-width: 32rem; color: var(--muted); font-size: clamp(1rem, 1.4vw, 1.16rem); }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: .7rem 1.4rem; margin-top: 1.55rem; }
.button { display: inline-flex; align-items: center; gap: 1.35rem; min-height: 2.9rem; padding: .55rem 1rem; border: 1px solid var(--forest); text-decoration: none; font-weight: 700; }
.primary { background: var(--forest); color: #fffdf5; }
.primary:hover { background: #336049; }
.outline:hover { background: #e4e9dc; }
.text-link { display: inline-flex; align-items: center; gap: .45rem; min-height: 2.75rem; font-weight: 700; }
.hero-figure { position: relative; }
.hero-figure img { aspect-ratio: 1.18; object-fit: cover; border-radius: 45% 45% .25rem .25rem / 38% 38% .25rem .25rem; }
.hero-figure figcaption { display: flex; justify-content: space-between; gap: 1rem; padding-top: .5rem; color: var(--muted); font-size: .79rem; letter-spacing: .06em; }

.season-section { background: #e9ede2; padding-block: clamp(2.75rem, 5vw, 4.75rem); }
.section-space { padding-block: clamp(2.75rem, 6vw, 5.25rem); }
.section-head, .about { display: grid; grid-template-columns: 1.2fr .8fr; gap: 1rem 2rem; align-items: end; }
.section-head { margin-bottom: 1.65rem; }
h2 { font-size: clamp(1.85rem, 3.65vw, 3.25rem); margin-top: .48rem; letter-spacing: -.025em; }
.section-head > p, .about p:not(.eyebrow) { color: var(--muted); }
.season-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .65rem; }
.season { display: flex; flex-direction: column; gap: .6rem; min-width: 0; padding: clamp(.9rem, 2vw, 1.45rem); border-top: 3px solid var(--season-accent); background: var(--season-bg); }
.spring { --season-accent: #708d58; --season-bg: #f4f6ed; }
.summer { --season-accent: #b69446; --season-bg: #fbf6e6; }
.autumn { --season-accent: #ad7757; --season-bg: #faf0e8; }
.winter { --season-accent: #728c94; --season-bg: #eff4f3; }
.season-index { font-size: .68rem; letter-spacing: .14em; font-weight: 750; color: var(--muted); }
.season h3 { font-size: 2.45rem; }
.season h3 span { font-size: 1rem; }
.season p { font-size: .92rem; color: var(--muted); }
.season a { display: flex; justify-content: space-between; gap: .25rem; align-items: center; min-height: 2.75rem; margin-top: auto; font-size: .91rem; font-weight: 700; }
.season-foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .55rem 1rem; align-items: center; margin-top: 1.3rem; }
.season-foot p { color: var(--muted); font: 1rem/1.65 var(--serif); }

.plant-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.2rem; margin-bottom: 1.45rem; }
.plant { border-bottom: 1px solid var(--line); padding-bottom: 1rem; }
.plant img { aspect-ratio: 1.55; object-fit: cover; border-radius: .18rem; }
.plant .eyebrow { margin: .8rem 0 .28rem; }
.plant h3 { font-size: 1.45rem; margin-bottom: .3rem; }
.plant > p:last-of-type { color: var(--muted); }
.plant .text-link { margin-top: .15rem; }

.practice { background: var(--forest); color: #fffdf5; padding-block: clamp(2.6rem, 5vw, 4.5rem); }
.practice-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem 2rem; }
.practice .eyebrow, .practice p:not(.eyebrow) { color: #e0eadd; }
.practice h2 { margin-bottom: .65rem; }
.practice ol { list-style: none; counter-reset: notes; margin: 0; padding: 0; }
.practice li { counter-increment: notes; position: relative; border-top: 1px solid #7f9a89; padding: .65rem 0 .75rem 2.4rem; }
.practice li::before { content: "0" counter(notes); position: absolute; left: 0; color: #e0eadd; font-size: .83rem; }
.about { align-items: start; }
.about .actions { margin-top: .55rem; }
.footer { border-top: 1px solid var(--line); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 1rem; }
.footer-inner p { font-family: var(--serif); font-weight: 700; }
.footer a { padding-block: .55rem; font-weight: 700; font-size: .9rem; }

@media (max-width: 58rem) {
  .shell { width: min(100% - 3rem, 76rem); }
  .season-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 42rem) {
  .shell { width: calc(100% - 2rem); }
  .site-header { align-items: flex-start; flex-direction: column; gap: .45rem; }
  nav a { min-height: 2.75rem; display: inline-flex; align-items: center; }
  .hero, .section-head, .practice-layout, .about { grid-template-columns: 1fr; }
  .hero { gap: 1.35rem; }
  .hero h1 { font-size: clamp(1.72rem, 6.4vw, 2.6rem); }
  .hero-figure img { aspect-ratio: 1.55; }
  .plant-grid { grid-template-columns: 1fr; }
  .plant img { aspect-ratio: 1.75; }
}