:root {
  --vin-bg: #f3f4f6;
  --vin-bg-rgb: 243, 244, 246;
  --vin-text: #111827;
  --vin-text-rgb: 17, 24, 39;
  --vin-muted: #4b5563;
  --vin-surface: #ffffff;
  --vin-surface-rgb: 255, 255, 255;
  --vin-border: rgba(17, 24, 39, 0.18);
  --vin-primary: #2f343a;
  --vin-primary-rgb: 47, 52, 58;
  --vin-primary-contrast: #ffffff;
  --vin-link: #1f2937;
  --vin-focus: #0b5fff;
  --vin-shadow: none;
  --vin-radius: 0px;

  /* Bootstrap theme mapping */
  --bs-body-bg: var(--vin-bg);
  --bs-body-bg-rgb: var(--vin-bg-rgb);
  --bs-body-color: var(--vin-text);
  --bs-body-color-rgb: var(--vin-text-rgb);
  --bs-emphasis-color: var(--vin-text);
  --bs-secondary-color: var(--vin-muted);
  --bs-tertiary-color: color-mix(in oklab, var(--vin-muted) 75%, transparent);
  --bs-border-color: var(--vin-border);
  --bs-border-color-translucent: var(--vin-border);
  --bs-link-color: var(--vin-link);
  --bs-link-hover-color: color-mix(in oklab, var(--vin-link) 85%, black);
  --bs-primary: var(--vin-primary);
  --bs-primary-rgb: var(--vin-primary-rgb);
  --bs-btn-border-radius: 0px;
}

html[data-font="sm"] { font-size: 90%; }
html[data-font="md"] { font-size: 100%; }
html[data-font="lg"] { font-size: 112.5%; }

html[data-theme="dark"],
body[data-theme="dark"] {
  --vin-bg: #0f1115;
  --vin-bg-rgb: 15, 17, 21;
  --vin-text: #f3f4f6;
  --vin-text-rgb: 243, 244, 246;
  --vin-muted: #9ca3af;
  --vin-surface: #171a22;
  --vin-surface-rgb: 23, 26, 34;
  --vin-border: rgba(243, 244, 246, 0.18);
  --vin-primary: #d1d5db;
  --vin-primary-rgb: 209, 213, 219;
  --vin-primary-contrast: #0f1115;
  --vin-link: #e5e7eb;
  --vin-focus: #7aa7ff;
  --vin-shadow: none;
}

html[data-theme="contrast"],
body[data-theme="contrast"] {
  --vin-bg: #000000;
  --vin-bg-rgb: 0, 0, 0;
  --vin-text: #ffffff;
  --vin-text-rgb: 255, 255, 255;
  --vin-muted: #ffffff;
  --vin-surface: #000000;
  --vin-surface-rgb: 0, 0, 0;
  --vin-border: #ffffff;
  --vin-primary: #ffff00;
  --vin-primary-rgb: 255, 255, 0;
  --vin-primary-contrast: #000000;
  --vin-link: #00ffff;
  --vin-focus: #00ffff;
  --vin-shadow: none;
}

html[data-bs-theme="dark"] {
  color-scheme: dark;
}

html:not([data-bs-theme="dark"]) {
  color-scheme: light;
}

html[data-bs-theme] {
  --bs-body-bg: var(--vin-bg);
  --bs-body-bg-rgb: var(--vin-bg-rgb);
  --bs-body-color: var(--vin-text);
  --bs-body-color-rgb: var(--vin-text-rgb);
  --bs-emphasis-color: var(--vin-text);
  --bs-secondary-color: var(--vin-muted);
  --bs-tertiary-color: color-mix(in oklab, var(--vin-muted) 75%, transparent);
  --bs-border-color: var(--vin-border);
  --bs-border-color-translucent: var(--vin-border);
  --bs-link-color: var(--vin-link);
  --bs-link-hover-color: color-mix(in oklab, var(--vin-link) 85%, black);
  --bs-primary: var(--vin-primary);
  --bs-primary-rgb: var(--vin-primary-rgb);
  --bs-btn-border-radius: 0px;
  --bs-focus-ring-color: color-mix(in oklab, var(--vin-focus) 35%, transparent);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--vin-text);
  background: var(--vin-bg);
}

html[data-theme="dark"] body,
body[data-theme="dark"],
html[data-theme="contrast"] body,
body[data-theme="contrast"] {
  background: var(--vin-bg);
}

a {
  color: var(--vin-link);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

a:hover { text-decoration-thickness: 0.12em; }

:focus-visible {
  outline: 3px solid var(--vin-focus);
  outline-offset: 2px;
}

/* Bootstrap button tuning */
.btn-primary {
  --bs-btn-bg: var(--vin-primary);
  --bs-btn-border-color: color-mix(in oklab, var(--vin-primary) 72%, black);
  --bs-btn-hover-bg: color-mix(in oklab, var(--vin-primary) 88%, black);
  --bs-btn-hover-border-color: color-mix(in oklab, var(--vin-primary) 80%, black);
  --bs-btn-active-bg: color-mix(in oklab, var(--vin-primary) 78%, black);
  --bs-btn-active-border-color: color-mix(in oklab, var(--vin-primary) 72%, black);
  --bs-btn-color: var(--vin-primary-contrast);
  --bs-btn-hover-color: var(--vin-primary-contrast);
  --bs-btn-active-color: var(--vin-primary-contrast);
}

.btn-outline-secondary {
  --bs-btn-color: var(--vin-text);
  --bs-btn-border-color: var(--vin-border);
  --bs-btn-hover-bg: color-mix(in oklab, var(--vin-primary) 10%, transparent);
  --bs-btn-hover-color: var(--vin-text);
  --bs-btn-hover-border-color: color-mix(in oklab, var(--vin-primary) 30%, transparent);
  --bs-btn-active-bg: color-mix(in oklab, var(--vin-primary) 16%, transparent);
  --bs-btn-active-color: var(--vin-text);
  --bs-btn-active-border-color: color-mix(in oklab, var(--vin-primary) 40%, transparent);
}

.form-control,
.form-select {
  background-color: var(--vin-surface);
  color: var(--vin-text);
  border-color: var(--vin-border);
  border-radius: 0;
}

.form-control::placeholder {
  color: color-mix(in oklab, var(--vin-muted) 82%, transparent);
}

.form-control:focus,
.form-select:focus {
  border-color: color-mix(in oklab, var(--vin-focus) 65%, var(--vin-border));
  outline: 3px solid color-mix(in oklab, var(--vin-focus) 60%, transparent);
  outline-offset: 2px;
  box-shadow: none;
}

html[data-theme="contrast"] .btn,
body[data-theme="contrast"] .btn {
  border-width: 2px;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--vin-surface);
  color: var(--vin-text);
  border: 1px solid var(--vin-border);
  border-radius: 0;
  box-shadow: none;
  transform: translateY(-200%);
  z-index: 1000;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: var(--vin-surface);
  border-bottom: 1px solid var(--vin-border);
  backdrop-filter: none;
}

html[data-theme="contrast"] .site-header,
body[data-theme="contrast"] .site-header {
  backdrop-filter: none;
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.brand-logo {
  display: block;
  width: auto;
  max-width: 200px;
  height: 44px;
  object-fit: contain;
}

.brand-text { display: inline-flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-weight: 700; letter-spacing: 0.2px; }
.brand-tagline { font-size: 0.95em; color: var(--vin-muted); }

.header-actions { display: flex; align-items: center; gap: 0.75rem; }
.a11y { position: relative; display: flex; align-items: center; }

.a11y-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.a11y-panel[hidden] { display: none !important; }

.a11y-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 0.5rem);
  width: min(360px, calc(100vw - 2rem));
  padding: 0.75rem;
  border: 1px solid var(--vin-border);
  border-radius: 0;
  background: var(--vin-surface);
  box-shadow: none;
  z-index: 950;
}

.a11y-panel .btn[aria-pressed="true"] {
  background: color-mix(in oklab, var(--vin-primary) 14%, transparent);
  border-color: color-mix(in oklab, var(--vin-primary) 35%, var(--vin-border));
}

html[data-theme="contrast"] .a11y-panel .btn[aria-pressed="true"],
body[data-theme="contrast"] .a11y-panel .btn[aria-pressed="true"] {
  background: var(--vin-primary);
  color: var(--vin-primary-contrast);
  border-color: var(--vin-border);
}

.a11y-title {
  font-weight: 700;
  font-size: 0.92em;
  color: var(--vin-muted);
  margin-bottom: 0.35rem;
}

.a11y-section + .a11y-section {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--vin-border);
}

.nav-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 0 0.9rem 0;
}

.menu-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  border: 1px solid var(--vin-border);
  background: var(--vin-surface);
  color: var(--vin-text);
  padding: 0.45rem 0.7rem;
  border-radius: 0;
}

.menu-toggle-icon {
  width: 18px;
  height: 12px;
  display: inline-block;
  background:
    linear-gradient(var(--vin-text), var(--vin-text)) 0 0 / 100% 2px no-repeat,
    linear-gradient(var(--vin-text), var(--vin-text)) 0 50% / 100% 2px no-repeat,
    linear-gradient(var(--vin-text), var(--vin-text)) 0 100% / 100% 2px no-repeat;
}

.menu-toggle-label { font-weight: 600; }

.main-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding: 0.75rem;
  margin-bottom: 0.5rem;
  border: 1px solid var(--vin-border);
  border-radius: 0;
  background: var(--vin-surface);
  box-shadow: none;
}

.js .main-nav { display: none; }
.js body.nav-open .main-nav { display: flex; }

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
}

.nav-item { list-style: none; }

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 0.75rem;
  border-radius: 0;
  border: 1px solid transparent;
  text-decoration: none;
  color: var(--vin-text);
}

.nav-link:hover {
  background: color-mix(in oklab, var(--vin-primary) 10%, transparent);
}

.nav-link.is-active {
  background: color-mix(in oklab, var(--vin-primary) 14%, transparent);
  border: 1px solid color-mix(in oklab, var(--vin-primary) 40%, var(--vin-border));
}

.nav-tools {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.search .form-control { border-radius: 0; }
.search .btn { border-radius: 0; }

.auth-links { display: flex; gap: 0.75rem; }
.auth-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
}

.site-main {
  padding: 1.25rem 0 2.5rem 0;
}

.hero {
  padding: 1.1rem 0 0.5rem 0;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 1rem;
  align-items: stretch;
  background: var(--vin-surface);
  border: 1px solid var(--vin-border);
  border-radius: 0;
  padding: 1.25rem;
  box-shadow: none;
}

.hero-title { margin: 0 0 0.5rem 0; letter-spacing: -0.2px; }
.hero-lead { margin: 0 0 1rem 0; color: var(--vin-muted); max-width: 60ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; }

.hero-card {
  background: var(--vin-surface);
  border: 1px solid var(--vin-border);
  border-radius: 0;
  padding: 1rem;
}

.content { padding: 1.2rem 0; }

.feature {
  height: 100%;
  background: var(--vin-surface);
  border: 1px solid var(--vin-border);
  border-radius: 0;
  padding: 1rem;
  box-shadow: none;
}

.site-footer {
  border-top: 1px solid var(--vin-border);
  background: var(--vin-surface);
  padding: 1.25rem 0;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-copy { color: var(--vin-muted); }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.6rem;
  align-items: center;
}

.footer-sep { color: var(--vin-muted); }

@media (min-width: 992px) {
  .nav-row { padding-top: 0.1rem; }
  .menu-toggle { display: none; }
  .main-nav {
    display: flex !important;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem;
  }
  .nav-list { flex-direction: row; gap: 0.25rem; }
  .nav-tools {
    grid-template-columns: auto auto auto;
    align-items: center;
    gap: 0.75rem;
  }
  .language { width: 170px; }
}

@media (max-width: 991.98px) {
  .header-actions { justify-content: flex-end; }
  .brand-logo { max-width: 170px; height: 40px; }
  .hero-inner { grid-template-columns: 1fr; }
  .nav-row { flex-wrap: wrap; align-items: stretch; }
  .menu-toggle { order: 1; flex: 0 0 auto; }
  .main-nav { order: 2; flex: 0 0 100%; max-width: 100%; width: 100%; }
}

@media (max-width: 575.98px) {
  .header-row { gap: 0.75rem; }
  .a11y-toggle-label { display: none; }
  .a11y-panel {
    position: fixed;
    left: 1rem;
    right: 1rem;
    top: 5rem;
    width: auto;
  }
}

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

@supports not (color: color-mix(in oklab, white, black)) {
  .site-header { background: var(--vin-surface); }
  .nav-link:hover,
  .nav-link.is-active { background: rgba(107, 16, 40, 0.12); }
  html[data-theme="dark"] .nav-link:hover,
  html[data-theme="dark"] .nav-link.is-active { background: rgba(210, 69, 99, 0.22); }
}