/* Dashan Clinic — site styles */
:root {
  --ink: #1c2622;
  --ink-soft: #4a5752;
  --muted: #6f7b76;
  --jade: #2d5a48;
  --jade-deep: #1f4235;
  --jade-soft: #e3ece6;
  --paper: #faf8f4;
  --sand: #f1ece2;
  --line: #e2ddd2;
  --clay: #a8573a;
  --white: #ffffff;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(28, 38, 34, .06), 0 8px 24px rgba(28, 38, 34, .06);
  --wrap: 1160px;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--jade); text-underline-offset: 3px; }
a:hover { color: var(--jade-deep); }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; line-height: 1.2; letter-spacing: -.01em; margin: 0 0 .5em; color: var(--ink); }
h1 { font-size: clamp(2.1rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1em; }
ul { padding-left: 1.2em; }
:focus-visible { outline: 3px solid var(--clay); outline-offset: 2px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--white); padding: 8px 14px; z-index: 100; }
.skip:focus { left: 8px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 248, 244, .92);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand-mark {
  display: grid; place-items: center;
  width: 42px; height: 42px; border-radius: 10px;
  background: var(--jade); color: var(--white);
  font-family: "Noto Serif SC", var(--serif); font-size: 15px; font-weight: 700; letter-spacing: 0; white-space: nowrap;
}
.brand-name { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name strong { font-family: var(--serif); font-size: 1.2rem; font-weight: 600; }
.brand-name span { white-space: nowrap; font-size: .68rem; color: var(--muted); letter-spacing: .06em; text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  text-decoration: none; color: var(--ink-soft); font-size: .92rem; font-weight: 500;
  padding: 8px 11px; border-radius: 8px; white-space: nowrap;
}
.nav a:hover { color: var(--ink); background: var(--sand); }
.nav a[aria-current="page"] { color: var(--jade); background: var(--jade-soft); }
.nav .btn, .nav .btn[aria-current="page"] { margin-left: 8px; color: var(--white); background: var(--jade); }
.nav .btn:hover { color: var(--white); background: var(--jade-deep); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 8px; width: 44px; height: 44px; cursor: pointer; color: var(--ink); }
.nav-toggle svg { margin: auto; }

@media (max-width: 1140px) {
  .nav-toggle { display: grid; place-items: center; }
  .nav {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 8px 16px 16px; display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px; font-size: 1rem; }
  .nav .btn { margin: 8px 0 0; text-align: center; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--jade); color: var(--white); text-decoration: none;
  font: 600 .95rem/1 var(--sans); padding: 14px 22px; border-radius: 999px; border: 0; cursor: pointer;
  transition: background .15s ease, transform .15s ease;
}
.btn:hover { background: var(--jade-deep); color: var(--white); }
.btn:active { transform: translateY(1px); }
.btn-ghost { background: transparent; color: var(--jade); box-shadow: inset 0 0 0 1.5px var(--jade); }
.btn-ghost:hover { background: var(--jade-soft); color: var(--jade-deep); }
.btn-sm { padding: 10px 16px; font-size: .88rem; }

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section-tight { padding: 56px 0; }
.section-alt { background: var(--sand); }
.eyebrow { display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--clay); margin-bottom: 14px; }
.lead { font-size: 1.15rem; color: var(--ink-soft); max-width: 62ch; }
.section-head { max-width: 720px; margin-bottom: 48px; }
.prose { max-width: 70ch; }
.prose p, .prose li { color: var(--ink-soft); }

.page-hero { padding: 72px 0 56px; background: linear-gradient(180deg, var(--jade-soft), var(--paper)); border-bottom: 1px solid var(--line); }
.page-hero h1 { margin-bottom: .3em; }
.crumbs { font-size: .85rem; color: var(--muted); margin-bottom: 18px; }
.crumbs a { color: var(--muted); }

/* ---------- Home hero ---------- */
.hero { padding: 72px 0 88px; background: radial-gradient(1200px 500px at 85% -10%, var(--jade-soft), transparent 60%), var(--paper); }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero h1 em { font-style: italic; color: var(--jade); }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 32px; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 28px; padding: 0; margin: 0; list-style: none; font-size: .9rem; color: var(--ink-soft); }
.hero-facts strong { display: block; font-family: var(--serif); font-size: 1.35rem; color: var(--ink); }
.hero-media { position: relative; }
.hero-media .main { border-radius: 20px; box-shadow: var(--shadow); width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.hero-media .inset {
  position: absolute; left: -32px; bottom: -36px; width: 42%;
  border-radius: 14px; border: 6px solid var(--paper); box-shadow: var(--shadow);
  aspect-ratio: 4 / 3; object-fit: cover;
}
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 48px; }
  .hero-media .inset { left: auto; right: 16px; bottom: -28px; width: 38%; }
}

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; box-shadow: 0 1px 2px rgba(28, 38, 34, .04);
}
.card h3 { margin-bottom: .4em; }
.card p { color: var(--ink-soft); margin-bottom: 0; }
.card-link { display: block; text-decoration: none; color: inherit; transition: border-color .15s, transform .15s, box-shadow .15s; }
.card-link:hover { border-color: var(--jade); transform: translateY(-2px); box-shadow: var(--shadow); color: inherit; }
.card-link .more { display: inline-block; margin-top: 14px; font-size: .9rem; font-weight: 600; color: var(--jade); }
.card-media { padding: 0; overflow: hidden; }
.card-media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.card-media .body { padding: 22px 24px 26px; }
.icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: var(--jade-soft); color: var(--jade); margin-bottom: 18px;
}

/* ---------- Split feature ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split.reverse > :first-child { order: 2; }
.split img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; object-fit: cover; }
@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; gap: 32px; }
  .split.reverse > :first-child { order: 0; }
}

.checklist { list-style: none; padding: 0; margin: 0 0 1em; }
.checklist li { position: relative; padding-left: 30px; margin-bottom: 10px; color: var(--ink-soft); }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: .35em; width: 18px; height: 18px; border-radius: 50%;
  background: var(--jade-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232d5a48' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center / 11px no-repeat;
}

/* ---------- Treatment detail ---------- */
.treatment { display: grid; grid-template-columns: 380px 1fr; gap: 48px; padding: 48px 0; border-top: 1px solid var(--line); scroll-margin-top: 96px; }
.treatment:first-child { border-top: 0; padding-top: 0; }
.treatment img { border-radius: var(--radius); width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.treatment .placeholder {
  border-radius: var(--radius); aspect-ratio: 16 / 10; display: grid; place-items: center;
  background: var(--jade-soft); color: var(--jade); font-family: var(--serif); font-size: 1.1rem;
}
.treatment p { color: var(--ink-soft); }
@media (max-width: 860px) { .treatment { grid-template-columns: 1fr; gap: 24px; } }

.subnav { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.subnav a { text-decoration: none; font-size: .88rem; font-weight: 500; padding: 8px 14px; border-radius: 999px; background: var(--white); border: 1px solid var(--line); color: var(--ink-soft); }
.subnav a:hover { border-color: var(--jade); color: var(--jade); }

/* ---------- Steps (diagnosis) ---------- */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.steps .card { position: relative; padding-top: 64px; }
.steps .card::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  position: absolute; top: 24px; left: 28px; font-family: var(--serif); font-size: 1.1rem; font-weight: 600; color: var(--clay);
}
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }

/* ---------- Conditions ---------- */
.conditions { columns: 3 260px; column-gap: 24px; }
.conditions .card { break-inside: avoid; margin-bottom: 24px; padding: 24px; }
.conditions h3 { font-size: 1.1rem; }
.conditions ul { list-style: none; padding: 0; margin: 0; }
.conditions li { padding: 6px 0; border-top: 1px dashed var(--line); color: var(--ink-soft); font-size: .95rem; }
.conditions li:first-child { border-top: 0; }

/* ---------- Profile ---------- */
.profile { display: grid; grid-template-columns: 420px 1fr; gap: 56px; align-items: start; }
.profile figure { margin: 0; position: sticky; top: 104px; }
.profile figure img { border-radius: var(--radius); box-shadow: var(--shadow); }
.profile figcaption { margin-top: 14px; font-size: .9rem; color: var(--muted); }
.quals { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.quals li { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px 18px; }
.quals strong { display: block; color: var(--ink); }
.quals span { color: var(--muted); font-size: .92rem; }
@media (max-width: 900px) { .profile { grid-template-columns: 1fr; } .profile figure { position: static; } }

/* ---------- Locations & map ---------- */
.location { display: grid; grid-template-columns: 380px 1fr; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.location + .location { margin-top: 28px; }
.location .info { padding: 32px; }
.location .info h3 { margin-bottom: .2em; }
.location .tag { display: inline-block; font-size: .75rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--jade); background: var(--jade-soft); padding: 4px 10px; border-radius: 999px; margin-bottom: 14px; }
.location address { font-style: normal; color: var(--ink-soft); margin-bottom: 18px; }
.location dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 0 0 22px; font-size: .95rem; }
.location dt { color: var(--muted); }
.location dd { margin: 0; }
.location .map { min-height: 380px; background: var(--jade-soft); }
.location .map iframe { width: 100%; height: 100%; min-height: 380px; border: 0; display: block; }
.transport { font-size: .9rem; color: var(--ink-soft); border-top: 1px solid var(--line); padding-top: 16px; }
.transport p { margin-bottom: .4em; }
.badge { display: inline-block; min-width: 34px; text-align: center; font-size: .78rem; font-weight: 700; padding: 2px 6px; border-radius: 4px; color: var(--white); background: #c8102e; margin-right: 4px; }
.badge.rail { background: var(--ink); }
@media (max-width: 900px) { .location { grid-template-columns: 1fr; } .location .map, .location .map iframe { min-height: 300px; } }

/* ---------- Forms ---------- */
.form { display: grid; gap: 18px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 620px) { .form .row { grid-template-columns: 1fr; } }
.field label, .field legend { display: block; font-size: .9rem; font-weight: 600; margin-bottom: 6px; color: var(--ink); }
.field input[type=text], .field input[type=email], .field input[type=tel], .field input[type=number], .field select, .field textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--ink);
  padding: 12px 14px; border: 1px solid #cfc8ba; border-radius: var(--radius-sm); background: var(--white);
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--jade); box-shadow: 0 0 0 3px rgba(45, 90, 72, .18); }
fieldset.field { border: 0; padding: 0; margin: 0; }
.choices { display: flex; flex-wrap: wrap; gap: 8px; }
.choices label { font-weight: 500; display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px; border: 1px solid #cfc8ba; border-radius: 999px; background: var(--white); cursor: pointer; margin: 0; }
.choices input { accent-color: var(--jade); }
.consent { font-size: .85rem; color: var(--muted); display: flex; gap: 10px; align-items: flex-start; }
.consent input { margin-top: 4px; accent-color: var(--jade); }
.note { font-size: .88rem; color: var(--muted); background: var(--sand); border-radius: var(--radius-sm); padding: 14px 16px; }

/* ---------- CTA band ---------- */
.cta { background: var(--jade-deep); color: #dfe9e3; border-radius: 20px; padding: 56px; display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: center; }
.cta h2 { color: var(--white); margin-bottom: .3em; }
.cta p { margin: 0; }
.cta .btn { background: var(--white); color: var(--jade-deep); }
.cta .btn:hover { background: var(--jade-soft); }
.cta .btn-ghost { background: transparent; color: var(--white); box-shadow: inset 0 0 0 1.5px rgba(255,255,255,.5); }
.cta .actions { display: flex; flex-wrap: wrap; gap: 12px; }
@media (max-width: 760px) { .cta { grid-template-columns: 1fr; padding: 36px 28px; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #b9c3be; padding: 64px 0 32px; margin-top: 88px; font-size: .92rem; }
.site-footer a { color: #dfe7e3; text-decoration: none; }
.site-footer a:hover { color: var(--white); text-decoration: underline; }
.site-footer h4 { font-family: var(--sans); font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: #8e9a95; margin-bottom: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 8px; }
.site-footer .brand { color: var(--white); margin-bottom: 16px; }
.site-footer .brand-name span { color: #8e9a95; }
.legal { border-top: 1px solid rgba(255,255,255,.1); margin-top: 48px; padding-top: 24px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; font-size: .82rem; color: #8e9a95; }
.legal p { margin: 0; max-width: 70ch; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }

@media (max-width: 620px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .section { padding: 64px 0; }
  .card { padding: 22px; }
  .location .info { padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}