:root {
  color-scheme: dark;
  --bg: #0d0b0a;
  --surface: #131110;
  --surface-2: #1a1715;
  --border: #292422;
  --border-strong: #3b3431;
  --text: #ece7e2;
  --text-body: #d8d2cc;
  --text-muted: #a89f98;
  --text-faint: #776d66;
  --accent: #ff6a4a;
  --accent-hover: #ff8166;
  --accent-ink: #2a110a;
  --danger: #ff8577;
  --danger-bg: #2a1512;
  --danger-border: #5a2a22;
  --radius: 10px;
  --radius-sm: 6px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, "Courier New", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-body);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.68;
}

h1,
h2,
h3 {
  color: var(--text);
  line-height: 1.28;
  letter-spacing: -0.01em;
}

a {
  color: var(--accent-hover);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  transform: translateY(-200%);
  z-index: 20;
  padding: 10px 14px;
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  transform: translateY(0);
  text-decoration: none;
}

.brand {
  margin: 0;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
}

.muted {
  color: var(--text-muted);
}

.small {
  font-size: 13.5px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.18s ease-out, border-color 0.18s ease-out, color 0.18s ease-out, transform 0.12s ease-out;
}

.btn:disabled {
  opacity: 0.55;
  cursor: default;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  text-decoration: none;
}

.btn-primary:active:not(:disabled) {
  transform: translateY(1px);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}

.btn-ghost:hover {
  background: var(--surface-2);
  text-decoration: none;
}

.btn-block {
  width: 100%;
}

.field {
  display: grid;
  gap: 6px;
  margin-bottom: 16px;
}

.field label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}

input[type="text"],
input[type="password"] {
  width: 100%;
  min-height: 46px;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  font: inherit;
  font-size: 1rem;
}

input[type="text"]:hover,
input[type="password"]:hover {
  border-color: #4a423e;
}

input[type="text"]:focus,
input[type="password"]:focus {
  border-color: var(--accent);
  outline-offset: 0;
}

.alert {
  margin: 0 0 16px;
  padding: 10px 14px;
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  border-radius: var(--radius-sm);
  color: var(--danger);
  font-size: 14px;
  line-height: 1.5;
}

.page-auth,
.page-home,
.page-message {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-shell {
  width: 100%;
  max-width: 400px;
}

.auth-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 28px;
}

.auth-panel h1 {
  margin: 10px 0 4px;
  font-size: 24px;
}

.auth-panel .sub {
  margin: 0 0 24px;
  color: var(--text-muted);
  font-size: 14.5px;
}

.auth-note {
  margin: 18px 0 0;
  color: var(--text-faint);
  font-size: 13.5px;
  line-height: 1.55;
}

.turnstile {
  min-height: 66px;
  margin: 4px 0 16px;
}

.home-shell {
  max-width: 560px;
  text-align: center;
}

.home-shell h1 {
  margin: 14px 0 10px;
  font-size: clamp(26px, 4vw, 34px);
}

.home-shell .sub {
  margin: 0 0 30px;
  color: var(--text-muted);
}

.page-portal {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 20px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.topbar .brand:hover {
  text-decoration: none;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-right form {
  margin: 0;
}

.who {
  color: var(--text-muted);
  font-size: 14px;
}

.layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  max-width: 1180px;
  margin: 0 auto;
}

.sidenav {
  padding: 24px 14px 40px 20px;
  border-right: 1px solid var(--border);
  min-height: calc(100vh - 61px);
}

.sidenav-title {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}

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

.nav-products > li {
  margin-bottom: 14px;
}

.nav-product {
  display: block;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14.5px;
  font-weight: 600;
}

.nav-product:hover {
  background: var(--surface-2);
  text-decoration: none;
}

.nav-pages {
  list-style: none;
  margin: 4px 0 0;
  padding: 0 0 0 6px;
  border-left: 1px solid var(--border);
}

.nav-page {
  display: block;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.45;
}

.nav-page:hover {
  background: var(--surface-2);
  color: var(--text);
  text-decoration: none;
}

.nav-page[aria-current="page"] {
  color: var(--accent-hover);
  font-weight: 600;
}

.content {
  padding: 32px 28px 72px;
  min-width: 0;
}

.langsw {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--text-faint);
}

.lang-link {
  padding: 2px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-muted);
  font-weight: 600;
}

.lang-link:hover {
  text-decoration: none;
  border-color: var(--border-strong);
  color: var(--text);
}

.lang-link.is-active {
  border-color: var(--accent);
  color: var(--accent-hover);
}

.prose {
  max-width: 72ch;
}

.prose h1 {
  margin: 0 0 14px;
  font-size: 29px;
}

.prose h2 {
  margin: 42px 0 12px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 20px;
}

.prose h3 {
  margin: 28px 0 8px;
  font-size: 17px;
}

.prose p {
  margin: 0 0 14px;
}

.prose ul {
  margin: 0 0 14px;
  padding-left: 1.3em;
}

.prose li {
  margin-bottom: 4px;
}

.prose strong {
  color: var(--text);
}

.prose code {
  font-family: var(--mono);
  font-size: 88%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
}

.prose img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 16px 0 24px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
}

.locnote {
  margin: 0 0 20px;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 14px;
}

.product-block {
  margin-bottom: 34px;
}

.product-block h2 {
  margin: 0 0 6px;
  padding-top: 0;
  border-top: 0;
  font-size: 19px;
}

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

.page-list li {
  border-bottom: 1px solid var(--border);
}

.page-list a {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 4px;
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
}

.page-list a:hover {
  color: var(--accent-hover);
  text-decoration: none;
}

.message-shell {
  width: 100%;
  max-width: 440px;
  padding: 30px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.message-shell h1 {
  margin: 10px 0 8px;
  font-size: 22px;
}

.message-shell p {
  margin: 0 0 16px;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidenav {
    min-height: 0;
    padding: 18px 20px;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .content {
    padding: 24px 20px 56px;
  }
}

@media (max-width: 640px) {
  .topbar {
    padding: 10px 14px;
  }

  .who {
    display: none;
  }

  .prose h1 {
    font-size: 24px;
  }

  .prose h2 {
    font-size: 18.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}