/* DryTear (DT) — 單一事實來源見 000_Agent/skills/brand-driedtear/SKILL.md */
:root {
  --crimson: #860808;
  --paper: #EDEBE2;
  --paper2: #E3E1D3;
  --ink: #1A1818;
  --mute: #8A7F79;
  --line: #D6D2C6;
  --white: #FFFFFF;

  --font-display: "Fraunces", "Heiti TC", serif;
  --font-body: "Inter", "Heiti TC", -apple-system, BlinkMacSystemFont, sans-serif;

  /* 介面通用底線字級下限（brand-driedtear:241-262）：頁面標題28／區塊標題22／內文19／按鈕18／註解15 */
  --fs-page-title: 34px;
  --fs-section-title: 24px;
  --fs-body: 19px;
  --fs-button: 18px;
  --fs-note: 15px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  max-width: 100%;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
}

h1, h2 { font-family: var(--font-display); font-weight: 600; margin: 0 0 0.4em; }

h1 { font-size: var(--fs-page-title); line-height: 1.2; }
h2 { font-size: var(--fs-section-title); line-height: 1.3; }

a { color: var(--crimson); }

:focus-visible {
  outline: 2px solid var(--crimson);
  outline-offset: 2px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
}

.brand-mark { height: 32px; width: auto; }

.lang-toggle {
  font-family: var(--font-body);
  font-size: var(--fs-note);
  min-width: 44px;
  min-height: 44px;
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
  cursor: pointer;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 20px 48px;
}

section {
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}

section:last-of-type { border-bottom: none; }

.eyebrow {
  font-size: var(--fs-note);
  color: var(--mute);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 12px;
}

.lead { color: var(--ink); margin: 0 0 24px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 10px 24px;
  font-size: var(--fs-button);
  font-family: var(--font-body);
  font-weight: 500;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}

.btn-primary:hover { background: var(--crimson); }

.note { font-size: var(--fs-note); color: var(--mute); margin-top: 16px; }

.service-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.service-list li {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.service-list li:first-child { border-top: none; }

.service-list h3 {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: 600;
  margin: 0 0 4px;
}

.service-list p { margin: 0; color: var(--ink); }

.case-card { background: var(--paper2); padding: 20px; }
.case-card + .case-card { margin-top: 16px; }

.case-tag {
  font-size: var(--fs-note);
  color: var(--crimson);
  margin: 0 0 8px;
}

.case-line { margin: 0 0 8px; }
.case-line:last-child { margin-bottom: 0; }

.about-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-photo {
  width: 88px;
  height: 88px;
  object-fit: contain;
  background: var(--paper2);
  padding: 20px;
}

.about-bio { margin: 0 0 12px; }

.link-underline {
  font-size: var(--fs-body);
  text-decoration: underline;
}

form { display: flex; flex-direction: column; gap: 16px; margin-top: 16px; }

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: var(--fs-note);
  color: var(--mute);
}

input[type="text"], input[type="email"], textarea {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  padding: 12px;
  min-height: 44px;
}

textarea { resize: vertical; }

fieldset {
  border: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

legend { font-size: var(--fs-note); color: var(--mute); padding: 0 0 4px; }

.radio {
  flex-direction: row;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  font-size: var(--fs-body);
  color: var(--ink);
}

.radio input { width: 20px; height: 20px; }

.form-status {
  font-size: var(--fs-note);
  min-height: 1.2em;
}

.form-status.success { color: var(--ink); }
.form-status.error { color: var(--crimson); }

.site-footer {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 20px 40px;
  font-size: var(--fs-note);
  color: var(--mute);
}

.footer-copyright { margin: 0 0 6px; }
.footer-links { margin: 0; }
.footer-links a { color: var(--mute); }

@media (min-width: 900px) {
  main, .site-footer { max-width: 720px; }
  :root { --fs-page-title: 40px; }
  .about-body { flex-direction: row; align-items: flex-start; }
}