:root {
  --bg: #f6f7fb;
  --panel: #ffffff;
  --panel-soft: #eef1f7;
  --text: #12141a;
  --muted: #646b7a;
  --line: #dfe3ec;
  --accent: #E30613;
  --accent-dark: #b9000a;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px clamp(18px, 4vw, 52px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  color: var(--text);
  font-weight: 800;
  font-size: 20px;
}

nav {
  display: flex;
  gap: 6px;
  flex: 1;
}

nav a {
  color: var(--muted);
  padding: 9px 12px;
  border-radius: var(--radius);
  font-weight: 700;
}

nav a.active,
nav a:hover {
  color: var(--accent);
  background: #fff0f1;
}

button,
.button {
  border: 0;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 800;
  padding: 11px 16px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

button:hover,
.button:hover { background: var(--accent-dark); color: #fff; }

.button.secondary,
.ghost {
  background: var(--panel-soft);
  color: var(--text);
}

.button.secondary:hover,
.ghost:hover {
  background: var(--line);
  color: var(--text);
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 34px auto 70px;
}

.hero,
.detail-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.eyebrow,
.back {
  color: var(--muted);
  font-weight: 800;
  margin: 0 0 8px;
}

h1 {
  font-size: clamp(34px, 6vw, 62px);
  line-height: 0.95;
  margin: 0;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 10px;
  font-size: 22px;
}

p {
  line-height: 1.55;
  color: var(--muted);
}

.search {
  display: flex;
  gap: 10px;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  font: inherit;
  background: #fff;
  color: var(--text);
}

textarea {
  resize: vertical;
  min-height: 220px;
  line-height: 1.5;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.skill-card,
.panel,
.install-box,
.markdown {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}

.skill-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 240px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.tags span {
  padding: 6px 9px;
  background: var(--panel-soft);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.quick-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: -6px 0 22px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.wide {
  grid-column: 1 / -1;
}

.token-card {
  display: grid;
  gap: 12px;
  padding: 16px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin: 20px 0;
}

.token-row,
.inline-form {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 10px;
  align-items: end;
}

.inline-form {
  grid-template-columns: 1fr auto;
  margin: 16px 0;
}

.muted-label {
  display: block;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 6px;
}

.install-box {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

.markdown {
  overflow: hidden;
}

.markdown h1 {
  font-size: 38px;
  margin: 16px 0;
}

.markdown pre,
pre {
  overflow: auto;
  background: #151923;
  color: #f5f7ff;
  border-radius: var(--radius);
  padding: 16px;
}

.markdown code,
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.notice {
  background: #e7f8ed;
  border: 1px solid #a5e2b9;
  color: #155724;
  padding: 14px 16px;
  border-radius: var(--radius);
  margin-bottom: 18px;
  font-weight: 700;
}

.error {
  background: #fff0f1;
  border: 1px solid #ffc4ca;
  color: var(--accent-dark);
  padding: 12px;
  border-radius: var(--radius);
}

.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 22px;
}

.login-card {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  display: grid;
  gap: 16px;
}

.login-card h1 {
  font-size: 44px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 800;
}

dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 12px 18px;
}

dt { color: var(--muted); font-weight: 800; }
dd { margin: 0; }

@media (max-width: 760px) {
  .topbar {
    align-items: flex-start;
    flex-wrap: wrap;
  }
  nav {
    order: 3;
    flex-basis: 100%;
    overflow-x: auto;
  }
  .hero,
  .detail-head,
  .search,
  .token-row,
  .inline-form {
    align-items: stretch;
    flex-direction: column;
  }
  .token-row,
  .inline-form,
  .form-grid {
    display: grid;
    grid-template-columns: 1fr;
  }
  h1 {
    font-size: 38px;
  }
  dl {
    grid-template-columns: 1fr;
  }
}