:root {
  --bg: #0d1117;
  --bg-2: #161b22;
  --bg-3: #1c232d;
  --border: #2d333b;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #4f8ff7;
  --accent-2: #3466c2;
  --green: #3fb950;
  --red: #f85149;
  --yellow: #d29922;
  --radius: 10px;
  font-size: 15px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.85em; }

/* ── Login ── */
.login-screen {
  position: fixed; inset: 0; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle at 30% 20%, #16213a 0%, var(--bg) 60%);
  z-index: 100; padding: 16px;
}
.login-card {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 16px;
  padding: 36px 32px; width: 100%; max-width: 360px; display: flex; flex-direction: column; gap: 12px;
  text-align: center;
}
.login-logo { font-size: 40px; }
.login-card h1 { font-size: 22px; }
.login-card input {
  background: var(--bg-3); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 11px 12px; font-size: 15px;
}
.error-text { color: var(--red); font-size: 13px; min-height: 18px; }

/* ── Layout ── */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px; background: var(--bg-2); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; flex-shrink: 0;
}
.brand { font-weight: 700; font-size: 17px; padding: 20px 18px; }
#nav { display: flex; flex-direction: column; gap: 2px; padding: 0 10px; flex: 1; }
#nav a {
  color: var(--muted); text-decoration: none; padding: 10px 12px; border-radius: 8px;
  font-size: 14.5px; display: flex; gap: 9px; align-items: center;
}
#nav a:hover { background: var(--bg-3); color: var(--text); }
#nav a.active { background: var(--bg-3); color: var(--text); font-weight: 600; }
.sidebar-footer { padding: 12px; }
.main { flex: 1; padding: 28px 32px 80px; max-width: 1200px; min-width: 0; }

/* ── Components ── */
h2.page-title { font-size: 22px; margin-bottom: 4px; }
.page-sub { color: var(--muted); margin-bottom: 22px; font-size: 14px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 20px; }
.card {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px;
}
.card .big { font-size: 26px; font-weight: 700; margin-top: 4px; }
.card .label { color: var(--muted); font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.05em; }
.panel {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; margin-bottom: 18px;
}
.panel h3 { font-size: 15px; margin-bottom: 12px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spread { justify-content: space-between; }

.btn {
  background: var(--bg-3); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 14px; font-size: 14px; cursor: pointer;
}
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.btn.primary:hover { background: var(--accent-2); }
.btn.danger { background: transparent; border-color: var(--red); color: var(--red); }
.btn.ghost { background: transparent; }
.btn.small { padding: 4px 10px; font-size: 12.5px; }
.btn.wide { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: default; }

input[type=text], input[type=password], input[type=number], input[type=url], select, textarea {
  background: var(--bg-3); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 9px 11px; font-size: 14px; width: 100%;
}
textarea { font-family: ui-monospace, Menlo, monospace; font-size: 13px; min-height: 120px; resize: vertical; }
label.field { display: block; margin-bottom: 12px; font-size: 13px; color: var(--muted); }
label.field > span { display: block; margin-bottom: 5px; }
label.check { display: flex; gap: 8px; align-items: center; font-size: 14px; color: var(--text); margin-bottom: 10px; cursor: pointer; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; padding: 8px 10px; border-bottom: 1px solid var(--border); }
td { padding: 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: var(--bg-3); }
.table-wrap { overflow-x: auto; }

.badge {
  display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600;
  background: var(--bg-3); border: 1px solid var(--border);
}
.badge.green { color: var(--green); border-color: rgba(63,185,80,0.4); }
.badge.red { color: var(--red); border-color: rgba(248,81,73,0.4); }
.badge.yellow { color: var(--yellow); border-color: rgba(210,153,34,0.4); }
.badge.blue { color: var(--accent); border-color: rgba(79,143,247,0.4); }

.alert { border-radius: var(--radius); padding: 12px 16px; margin-bottom: 16px; font-size: 14px; border: 1px solid; }
.alert.red { border-color: rgba(248,81,73,0.5); background: rgba(248,81,73,0.08); color: #ffb0ab; }
.alert.yellow { border-color: rgba(210,153,34,0.5); background: rgba(210,153,34,0.08); color: #e8c67a; }
.alert.green { border-color: rgba(63,185,80,0.4); background: rgba(63,185,80,0.07); color: #7ee287; }

pre.code {
  background: #0a0e14; border: 1px solid var(--border); border-radius: 8px;
  padding: 12px 14px; overflow-x: auto; font-size: 12.5px; line-height: 1.5;
  font-family: ui-monospace, Menlo, monospace; white-space: pre; position: relative;
}
.code-block { position: relative; margin: 10px 0; }
.code-block .copy-btn { position: absolute; top: 8px; right: 8px; z-index: 2; }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--bg-3); border: 1px solid var(--border); color: var(--text);
  padding: 10px 20px; border-radius: 999px; font-size: 14px; z-index: 200;
  box-shadow: 0 6px 24px rgba(0,0,0,0.5);
}

.detail-grid { display: grid; grid-template-columns: 140px 1fr; gap: 6px 14px; font-size: 14px; }
.detail-grid dt { color: var(--muted); }
.pager { display: flex; gap: 8px; align-items: center; margin-top: 14px; font-size: 13px; color: var(--muted); }

.tabs { display: flex; gap: 4px; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.tabs button {
  background: none; border: none; color: var(--muted); padding: 9px 14px; font-size: 14px; cursor: pointer;
  border-bottom: 2px solid transparent;
}
.tabs button.active { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }

details.raw { margin-top: 8px; }
details.raw summary { cursor: pointer; color: var(--muted); font-size: 13px; }

.docs-toc { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.docs-toc a { color: var(--accent); text-decoration: none; font-size: 13.5px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 999px; padding: 5px 12px; }
.endpoint { border-left: 3px solid var(--border); padding-left: 14px; margin: 22px 0; }
.endpoint .method { font-weight: 700; font-family: ui-monospace, Menlo, monospace; font-size: 13px; padding: 2px 8px; border-radius: 6px; }
.method.GET { background: rgba(63,185,80,0.15); color: var(--green); }
.method.POST { background: rgba(79,143,247,0.15); color: var(--accent); }
.method.PUT { background: rgba(210,153,34,0.15); color: var(--yellow); }
.method.DELETE { background: rgba(248,81,73,0.15); color: var(--red); }

/* ── Mobile ── */
@media (max-width: 760px) {
  .app { flex-direction: column; }
  .sidebar {
    width: 100%; height: auto; position: fixed; bottom: 0; top: auto; z-index: 50;
    border-right: none; border-top: 1px solid var(--border); flex-direction: row; align-items: center;
  }
  .brand, .sidebar-footer { display: none; }
  #nav { flex-direction: row; padding: 6px; overflow-x: auto; width: 100%; }
  #nav a { flex-direction: column; gap: 2px; font-size: 10.5px; padding: 6px 10px; flex-shrink: 0; }
  .main { padding: 18px 14px 110px; }
  .detail-grid { grid-template-columns: 110px 1fr; }
}