/* ── CSS variables ── */
:root {
  color-scheme: light dark;
  --bg: #f6f1e6;
  --ink: #1b1b1b;
  --muted: #6b645c;
  --card: #fffaf2;
  --accent: #7a5d3a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100svh;
  background:
    radial-gradient(1200px 800px at 50% 10%, #fffaf2 0%, var(--bg) 60%),
    repeating-linear-gradient(45deg, rgba(122, 93, 58, 0.05) 0 2px, transparent 2px 10px);
  color: var(--ink);
  font-family: "Georgia", "Times New Roman", serif;
}

.divider {
  width: 88px;
  height: 2px;
  margin: 20px auto 18px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── theme toggle ── */
.theme-toggle {
  border: 1px solid rgba(122, 93, 58, 0.3);
  background: transparent;
  color: var(--ink);
  font-family: "Georgia", "Times New Roman", serif;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.theme-toggle:hover {
  transform: translateY(-1px);
  border-color: rgba(122, 93, 58, 0.6);
  background: rgba(122, 93, 58, 0.08);
}

.theme-toggle svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

:root[data-theme="dark"] .icon-moon { display: none; }
:root[data-theme="dark"] .icon-sun  { display: inline; }
:root[data-theme="light"] .icon-moon { display: inline; }
:root[data-theme="light"] .icon-sun  { display: none; }

/* ── dark mode ── */
:root[data-theme="dark"] {
  --bg: #121212;
  --ink: #f5efe6;
  --muted: #c9c2b7;
  --card: #1b1b1b;
  --accent: #c7a27a;
}

:root[data-theme="dark"] body {
  background:
    radial-gradient(1200px 800px at 50% 10%, #1f1f1f 0%, var(--bg) 60%),
    repeating-linear-gradient(45deg, rgba(199, 162, 122, 0.06) 0 2px, transparent 2px 10px);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121212;
    --ink: #f5efe6;
    --muted: #c9c2b7;
    --card: #1b1b1b;
    --accent: #c7a27a;
  }

  :root:not([data-theme="light"]) body {
    background:
      radial-gradient(1200px 800px at 50% 10%, #1f1f1f 0%, var(--bg) 60%),
      repeating-linear-gradient(45deg, rgba(199, 162, 122, 0.06) 0 2px, transparent 2px 10px);
  }
}

/* ── brand certificate ── */
.brand-cert {
  max-width: 400px;
  margin: 24px auto 0;
  background: var(--card);
  border: 1px solid rgba(122, 93, 58, 0.25);
  border-radius: 10px;
  padding: 22px 26px 24px;
  text-align: center;
}
.brand-cert-agency {
  margin: 0 0 2px;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.brand-cert-title {
  margin: 0 0 12px;
  font-size: 0.9rem;
  font-weight: normal;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent);
}
.brand-cert-rule {
  width: 56px;
  height: 1px;
  margin: 0 auto 18px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.brand-cert-body {
  display: flex;
  align-items: center;
  gap: 22px;
  text-align: left;
}
.brand-cert-mark {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  border: 2px solid rgba(122, 93, 58, 0.25);
  border-radius: 6px;
  overflow: hidden;
}
.brand-cert-logo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.brand-cert-fields {
  margin: 0;
  display: grid;
  gap: 5px;
}
.brand-cert-field {
  display: flex;
  gap: 5px;
  align-items: baseline;
  font-size: 0.78rem;
}
.brand-cert-field dt {
  color: var(--muted);
  white-space: nowrap;
}
.brand-cert-field dt::after { content: ":"; }
.brand-cert-field dd {
  margin: 0;
  color: var(--ink);
  font-weight: 600;
}

/* ── sticky top nav ── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 20px;
  height: 56px;
  background: rgba(246, 241, 230, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(122, 93, 58, 0.15);
}
.site-nav-brand {
  font-family: "Georgia", "Times New Roman", serif;
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  transition: color 120ms ease;
}
.site-nav-brand:hover { color: var(--accent); }
.site-nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.site-nav-link {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--ink);
  text-decoration: none;
  font-family: "Georgia", "Times New Roman", serif;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  transition: background 120ms ease, color 120ms ease;
}
.site-nav-link:hover { background: rgba(122, 93, 58, 0.1); }
.site-nav-link[aria-current="page"] {
  background: rgba(122, 93, 58, 0.12);
  color: var(--accent);
}
.site-nav-icon {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 6px 8px; border-radius: 999px; color: var(--ink);
  text-decoration: none; transition: background 120ms ease, color 120ms ease;
}
.site-nav-icon svg { width: 18px; height: 18px; fill: currentColor; }
.site-nav-icon:hover { background: rgba(122, 93, 58, 0.1); }
.site-nav-icon[aria-current="page"] {
  background: rgba(122, 93, 58, 0.12);
  color: var(--accent);
}
.nav-hamburger {
  display: none;
  background: transparent;
  border: 1px solid rgba(122, 93, 58, 0.3);
  border-radius: 8px;
  padding: 6px 8px;
  cursor: pointer;
  color: var(--ink);
}
.nav-hamburger svg {
  width: 20px; height: 20px;
  fill: currentColor;
  display: block;
}
:root[data-theme="dark"] .site-nav { background: rgba(18, 18, 18, 0.92); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .site-nav { background: rgba(18, 18, 18, 0.92); }
}
@media (max-width: 680px) {
  .nav-hamburger { display: flex; }
  .site-nav-links {
    display: none;
    position: fixed;
    top: 56px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px 16px;
    background: var(--card);
    border-bottom: 1px solid rgba(122, 93, 58, 0.15);
    gap: 4px;
  }
  .site-nav-links.open { display: flex; }
  .site-nav-link { padding: 10px 14px; font-size: 0.95rem; }
}