:root {
  color-scheme: light;
  --bg: #FDF6E4;
  --panel: #ffffff;
  --panel-soft: #fffdf9;
  --ink: #2f1e16;
  --heading: #431F10;
  --muted: #6f5a4d;
  --muted-light: #9b8f85;
  --line: rgba(67, 31, 16, 0.18);
  --line-strong: rgba(67, 31, 16, 0.25);
  --accent: #431F10;
  --accent-strong: #2f160c;
  --accent-soft: rgba(67, 31, 16, 0.08);
  --danger: #b53a32;
  --danger-bg: #fff7f6;
  --ok: #177245;
  --ok-bg: #ecfdf3;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Prompt", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

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

a:hover {
  text-decoration: underline;
}

.shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(253, 246, 228, 0.88);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0;
}

.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: block;
  object-fit: cover;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  color: var(--muted);
  font-weight: 500;
}

.nav a.active {
  color: var(--accent);
}

.lang-toggle {
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--line-strong);
  font-size: 13px;
}

.lang-toggle:hover {
  background: rgba(67, 31, 16, 0.14);
  color: var(--accent);
}

.main {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 44px 24px 64px;
}

.hero {
  padding: 34px 0 20px;
  max-width: 1020px;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

h1 {
  font-size: clamp(34px, 7vw, 64px);
  line-height: 1.02;
  margin: 0 0 18px;
  letter-spacing: 0;
  color: var(--heading);
  font-weight: 700;
}

.home-title {
  font-size: clamp(38px, 5.4vw, 72px);
  white-space: nowrap;
}

h2 {
  font-size: 26px;
  margin: 34px 0 12px;
  letter-spacing: 0;
  color: var(--heading);
  font-weight: 700;
}

h3 {
  font-size: 18px;
  margin: 24px 0 8px;
  letter-spacing: 0;
  color: var(--heading);
  font-weight: 700;
}

p {
  color: var(--muted);
  margin: 0 0 14px;
}

ul {
  color: var(--muted);
  padding-left: 22px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 12px 30px rgba(67, 31, 16, 0.06);
}

.card h2,
.card h3 {
  margin-top: 0;
}

.doc {
  max-width: 880px;
}

.doc-header {
  border-bottom: 1px solid var(--line);
  margin-bottom: 26px;
  padding-bottom: 22px;
}

.doc h2 {
  margin-top: 38px;
}

.doc ul {
  margin: 0 0 18px;
}

.doc li {
  margin-bottom: 6px;
}

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

.actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 22px;
}

button,
.button {
  border: 1px solid transparent;
  background: var(--accent);
  color: white;
  border-radius: 16px;
  min-height: 44px;
  padding: 0 16px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

button:hover,
.button:hover {
  background: var(--accent-strong);
  text-decoration: none;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.button.secondary,
button.secondary {
  background: white;
  color: var(--accent);
  border-color: var(--line-strong);
}

.button.danger,
button.danger {
  background: var(--danger);
}

.button.danger:hover,
button.danger:hover {
  background: #8f1d14;
}

.notice {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 16px;
  background: var(--panel-soft);
  color: var(--muted);
  margin: 18px 0;
}

.notice.danger {
  border-color: #fecdca;
  background: var(--danger-bg);
  color: var(--danger);
}

.notice.ok {
  border-color: #abefc6;
  background: var(--ok-bg);
  color: var(--ok);
}

.account-box {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  max-width: 900px;
  box-shadow: 0 14px 34px rgba(67, 31, 16, 0.07);
}

.field {
  margin: 18px 0;
}

.checkbox {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--muted);
}

.checkbox input {
  margin-top: 5px;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 20px 24px;
  color: var(--muted);
  font-size: 13px;
  margin-top: auto;
}

.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

code {
  background: var(--accent-soft);
  border-radius: 6px;
  padding: 2px 6px;
  color: var(--heading);
}

@media (max-width: 760px) {
  .topbar-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    justify-content: flex-start;
  }

  .main {
    padding-top: 28px;
  }

  .home-title {
    font-size: clamp(34px, 12vw, 52px);
    white-space: normal;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}