/* ==========================================================================
   青弦房事 — Design Tokens
   Dreamlike Blue / Gold Cityscape, softened pass:
   the same navy/sky-blue/ivory/gold family, but with a paler page
   canvas, gentler curves and quieter accents so ivory and negative
   space read as the majority — curves, gold and any illustrative
   touches stay strictly local accents, never a dominant fill.
   ========================================================================== */
:root {
  --color-bg: #E3EEF8;
  --color-surface: #F2E4C9;
  --color-pale: #D6E5F2;
  --color-cream: #F5DCA4;
  --color-text: #18345F;
  --color-text-soft: #254468;
  --color-accent: #F2B84B;
  --color-accent-dark: #D99B2B;
  --color-neutral: #527FB5;
  --color-line: #FFFFFF;
  --color-border: #C9DFF0;
  --color-block: #173567;

  --font-cjk: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  --font-latin: "Inter", var(--font-cjk);

  --container-width: 1120px;
  --radius: 10px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-latin);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.3;
  margin: 0 0 16px;
  color: var(--color-text);
  letter-spacing: 0.01em;
}
h1 { font-size: clamp(32px, 5vw, 56px); font-weight: 900; }
h2 { font-size: clamp(26px, 3.6vw, 38px); }
h3 { font-size: clamp(20px, 2.4vw, 24px); }
p { margin: 0 0 16px; color: var(--color-text-soft); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-accent-dark);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--color-accent);
}

/* ==========================================================================
   Buttons — gold is the only CTA color, everything else is navy outline
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn-line { background: var(--color-accent); color: var(--color-block); }
.btn-line:hover { background: var(--color-accent-dark); }
.btn-outline { background: transparent; color: var(--color-text); border-color: var(--color-text); }
.btn-outline:hover { background: var(--color-text); color: var(--color-surface); }
.btn-outline-light { background: transparent; color: var(--color-bg); border-color: var(--color-bg); }
.btn-outline-light:hover { background: var(--color-bg); color: var(--color-text); }
.btn-block { width: 100%; }
.btn-lg { padding: 18px 36px; font-size: 17px; }

/* ==========================================================================
   Header / Nav — solid ivory bar, no blur/glass effect
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(242, 228, 201, 0.97);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 16px;
  padding-bottom: 16px;
}
.logo { font-weight: 900; font-size: 22px; letter-spacing: 0.02em; flex-shrink: 0; color: var(--color-text); }
.main-nav { display: flex; gap: 32px; flex: 1; justify-content: center; }
.main-nav a {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-soft);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] { color: var(--color-text); border-color: var(--color-accent); }
.header-cta { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.header-cta .btn { padding: 10px 18px; font-size: 14px; }
.phone-icon-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border: 1.5px solid var(--color-text);
  border-radius: var(--radius);
  color: var(--color-text);
  transition: background-color .15s ease, color .15s ease;
}
.phone-icon-btn:hover { background: var(--color-text); color: var(--color-surface); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 26px;
  cursor: pointer;
  color: var(--color-text);
  padding: 4px 8px;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { position: relative; padding: 72px 0 96px; overflow: hidden; }
.hero-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; position: relative; z-index: 1; }
.hero-copy .lead { font-size: 18px; max-width: 46ch; }
.hero-actions { display: flex; gap: 16px; margin-top: 32px; flex-wrap: wrap; }

/* Social icon row — used by the footer; small and muted there */
.social-icons { display: flex; gap: 10px; }
.social-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--color-text);
  opacity: .85;
  transition: opacity .15s ease, color .15s ease;
}
.social-icons a:hover { opacity: 1; color: var(--color-accent-dark); }
.footer-col .social-icons a { color: var(--color-bg); }
.footer-col .social-icons a:hover { color: var(--color-accent); }

/* Hero social row — below the LINE/phone CTAs, clearly bigger and more
   legible than the footer icons, but still visually secondary to LINE
   (ivory badge + navy icon, no gold) */
.hero-social-row { display: flex; gap: 22px; margin-top: 32px; flex-wrap: wrap; }
.hero-social-row a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-soft);
  transition: color .15s ease;
}
.hero-social-row a:hover { color: var(--color-text); }
.hero-social-row .icon-badge {
  width: 72px;
  height: 72px;
  border-radius: 999px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-block);
  transition: background-color .15s ease, transform .15s ease;
}
.hero-social-row a:hover .icon-badge { background: var(--color-pale); transform: translateY(-2px); }
.hero-social-row .icon-badge svg { width: 34px; height: 34px; }
.hero-social-row .social-label { font-size: 13px; font-weight: 700; }

/* ==========================================================================
   Portrait — transparent cutout over a navy grounding block, ivory field
   ========================================================================== */
.portrait-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--color-surface);
  border-radius: var(--radius);
}
.portrait-frame.square { aspect-ratio: 1 / 1; }
.portrait-frame .portrait-block {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 36%;
  background: var(--color-block);
}
.portrait-frame .portrait-line {
  position: absolute;
  left: 0; right: 0; bottom: 36%;
  height: 2px;
  background: var(--color-line);
}
.portrait-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: 50% 100%;
  z-index: 1;
}

/* Soft ivory accent shape — a quiet local touch, not a dominant fill */
.deco-block {
  position: absolute;
  background: var(--color-surface);
  z-index: 0;
  opacity: 0.55;
}

/* ==========================================================================
   Sections / Cards
   ========================================================================== */
section { padding: 96px 0; position: relative; }
.section-tight { padding: 64px 0; }
.section-alt { background: var(--color-surface); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  z-index: 1;
}
.section-alt .card { background: var(--color-pale); }
.card .card-num { font-size: 13px; font-weight: 800; color: var(--color-accent-dark); letter-spacing: 0.1em; margin-bottom: 14px; }
.card h3 { margin-bottom: 10px; }
.card p { flex: 1; font-size: 15px; }
.card .card-link {
  margin-top: 16px;
  font-weight: 700;
  font-size: 14px;
  color: var(--color-text);
  border-bottom: 2px solid var(--color-accent);
  display: inline-flex;
  width: fit-content;
}

.service-block { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 48px; align-items: start; padding: 56px 0; }
.service-block:not(:last-child) { border-bottom: 1px solid var(--color-border); }
.service-block .service-index { font-size: 15px; font-weight: 800; color: var(--color-accent-dark); letter-spacing: 0.1em; margin-bottom: 10px; display: block; }
.service-block ul { padding-left: 20px; margin: 20px 0; }
.service-block li { margin-bottom: 8px; color: var(--color-text-soft); }

/* ==========================================================================
   CTA banner — bold navy band
   ========================================================================== */
.cta-banner {
  background: var(--color-block);
  color: var(--color-bg);
  border-radius: var(--radius);
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}
.cta-banner h2 { color: var(--color-surface); margin-bottom: 8px; }
.cta-banner p { color: var(--color-pale); margin-bottom: 0; }
.cta-banner .cta-actions { display: flex; gap: 14px; flex-wrap: wrap; position: relative; z-index: 1; }
.cta-banner .cta-content { position: relative; z-index: 1; }
.cta-banner .deco-block {
  position: absolute;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--color-block); color: var(--color-bg); padding: 64px 0 0; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.14);
}
.footer-brand { font-weight: 800; font-size: 20px; }
.footer-brand span { display: block; font-weight: 500; font-size: 13px; color: var(--color-pale); margin-top: 8px; }
.footer-col h4 { color: var(--color-surface); font-size: 14px; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 16px; }
.footer-col a, .footer-col p { display: block; color: var(--color-pale); font-size: 14px; margin-bottom: 10px; }
.footer-col a:hover { color: var(--color-accent); }
.footer-contact-actions { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.footer-legal { padding: 20px 0 0; text-align: center; font-size: 12px; color: var(--color-pale); }
.footer-bottom { padding: 20px 0; text-align: center; font-size: 13px; color: var(--color-pale); }

/* ==========================================================================
   Page header (interior sections)
   ========================================================================== */
.page-header { padding: 56px 0 40px; }
.page-header .eyebrow { margin-bottom: 8px; }
.page-header p.lead { max-width: 56ch; font-size: 17px; }

/* About intro (company info card beside bio copy — the personal photo
   lives only in the Hero, not duplicated here) */
.about-intro-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 56px; align-items: start; }
.company-info-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}
.company-info-card .company-logo {
  width: 96px;
  height: 96px;
  object-fit: contain;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: block;
}
.company-info-card .company-info-text p { margin: 0 0 6px; font-size: 14px; color: var(--color-text-soft); }
.company-info-card .company-name { font-weight: 700; color: var(--color-text); font-size: 15px; }

/* ==========================================================================
   Forms (calculator)
   ========================================================================== */
.calc-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.calc-form { background: var(--color-surface); border: 1px solid var(--color-border); padding: 36px; border-radius: var(--radius); }
.form-group { margin-bottom: 22px; }
.form-group label { display: block; font-weight: 700; font-size: 14px; margin-bottom: 8px; color: var(--color-text); }
.form-group .hint { font-size: 12px; color: var(--color-neutral); margin-top: 6px; }
.form-group input[type="number"],
.form-group input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  font-size: 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-latin);
}
.form-group input:focus { outline: none; border-color: var(--color-accent-dark); }
.form-error { color: #B3261E; font-size: 13px; font-weight: 600; margin-top: 6px; display: none; }
.form-group.has-error input { border-color: #B3261E; }
.form-group.has-error .form-error { display: block; }
.checkbox-row { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.checkbox-row input { width: 18px; height: 18px; }
.checkbox-row label { margin: 0; font-weight: 700; font-size: 14px; color: var(--color-text); }
.grace-fields { display: none; border-left: 3px solid var(--color-accent); margin-left: 4px; padding: 4px 0 4px 20px; }
.grace-fields.active { display: block; }

.calc-result { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 36px; min-height: 260px; }
.calc-result .placeholder-msg { color: var(--color-neutral); font-size: 15px; }
.result-row { display: flex; justify-content: space-between; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--color-border); }
.result-row:last-of-type { border-bottom: none; }
.result-row .label { font-size: 14px; font-weight: 600; color: var(--color-text-soft); }
.result-row .value { font-size: 22px; font-weight: 800; color: var(--color-text); }
.result-row .value .unit { font-size: 13px; font-weight: 600; color: var(--color-text-soft); margin-left: 4px; }
.result-highlight .value { color: var(--color-accent-dark); }
.disclaimer-box {
  margin-top: 24px;
  padding: 16px 18px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-soft);
  border-left: 3px solid var(--color-accent);
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: stretch; }
.qr-frame {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 1 / 1;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  margin: 0 auto 20px;
}
.qr-frame img { width: 100%; height: 100%; object-fit: contain; }
.contact-info-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 32px;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
}
.contact-info-row { display: flex; align-items: flex-start; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--color-border); }
.contact-info-row:last-child { border-bottom: none; }
.contact-info-row .ci-label { font-size: 13px; font-weight: 700; color: var(--color-neutral); width: 84px; flex-shrink: 0; letter-spacing: .05em; text-transform: uppercase; }
.contact-info-row .ci-value { font-weight: 700; font-size: 16px; color: var(--color-text); }
.contact-info-row .ci-value a:hover { color: var(--color-accent-dark); }

/* ==========================================================================
   Utility
   ========================================================================== */
.text-soft { color: var(--color-text-soft); }
.mobile-only { display: none; }

/* One-page nav: keep anchored sections clear of the sticky header */
#home, #about, #services, #calculator, #contact, #buy, #sell, #land, #tarot {
  scroll-margin-top: 88px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 960px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-copy { order: 2; }
  .hero-media { order: 1; width: 100%; max-width: 360px; margin: 0 auto; }
  .service-block { grid-template-columns: 1fr; gap: 24px; }
  .calc-layout { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-intro-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .main-nav { display: none; }
  .header-cta .btn-outline { display: none; }
  .phone-icon-btn { display: inline-flex; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .mobile-only { display: block; }
  .site-header.nav-open .main-nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    padding: 20px 24px 28px;
    border-bottom: 1px solid var(--color-border);
    gap: 18px;
  }
}

@media (max-width: 720px) {
  .grid-4 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .cta-banner { flex-direction: column; align-items: flex-start; text-align: left; padding: 40px 28px; }
  section { padding: 56px 0; }
  .hero { padding: 40px 0 56px; }
  .hero-social-row { gap: 16px; }
  .hero-social-row .icon-badge { width: 60px; height: 60px; }
  .hero-social-row .icon-badge svg { width: 28px; height: 28px; }
  .hero-social-row .social-label { font-size: 11px; }
}