:root {
  --bg: #f7f8fa; --panel: #ffffff; --fg: #1c1e21; --muted: #6b7280;
  --border: #e6e8eb; --accent: #3b6ef5; --ok: #15a34a; --err: #dc2626;
  --chip: #eef2ff; --chip-fg: #3b5bdb;
  --shadow: 0 1px 2px rgba(16,24,40,.04), 0 1px 3px rgba(16,24,40,.06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0f13; --panel: #15181e; --fg: #e6e8eb; --muted: #9aa1ab;
    --border: #252a32; --accent: #4d7cfe; --chip: #1b2233; --chip-fg: #93b0ff;
    --shadow: 0 1px 2px rgba(0,0,0,.3);
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 14px/1.55 -apple-system, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
form { margin: 0; }

/* nav */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 56px; padding: 0 24px; background: var(--panel);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 5;
}
.brand { font-weight: 650; font-size: 16px; letter-spacing: .2px; }
.nav nav a { margin-left: 20px; color: var(--muted); font-size: 14px; }
.nav nav a:hover { color: var(--fg); }

main { max-width: 1080px; margin: 24px auto; padding: 0 20px; }

/* page head + toolbar */
.page-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 16px; margin-bottom: 20px; flex-wrap: wrap;
}
.page-head h1 { font-size: 20px; margin: 0; }
.page-head .sub { margin: 3px 0 0; color: var(--muted); font-size: 13px; }
.toolbar { display: flex; gap: 8px; align-items: center; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  font-size: 13px; font-weight: 500; padding: 7px 14px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--panel); color: var(--fg);
  transition: .15s ease; white-space: nowrap;
}
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { filter: brightness(1.07); }
.btn.ghost { background: transparent; }
.btn.danger { color: var(--err); border-color: transparent; padding: 4px 9px; font-size: 12px; }
.btn.danger:hover { background: rgba(220,38,38,.12); }

/* cards */
.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px 20px; box-shadow: var(--shadow);
}
.card + .card, section + section { margin-top: 16px; }
.card h2 {
  font-size: 12px; font-weight: 600; margin: 0 0 12px; color: var(--muted);
  text-transform: uppercase; letter-spacing: .5px;
}
.card h2 small { text-transform: none; letter-spacing: 0; font-weight: 400; margin-left: 6px; }

/* stat cards */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.stat {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 12px; padding: 16px 18px; box-shadow: var(--shadow);
}
.stat .num { font-size: 26px; font-weight: 680; line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat .lbl { color: var(--muted); font-size: 12.5px; margin-top: 5px; }
.stat.ok .num { color: var(--ok); }
.stat.dim .num { color: var(--muted); }

.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 16px; }
.cols-3 .card, .stats + * { margin-top: 0; }

/* tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 7px 6px; text-align: left; border-bottom: 1px solid var(--border); }
tbody tr:last-child td { border-bottom: 0; }
th { color: var(--muted); font-weight: 500; font-size: 11.5px; text-transform: uppercase; letter-spacing: .3px; }
.r { text-align: right; font-variant-numeric: tabular-nums; }
.list th, .list td { padding: 8px 6px; }
.tag {
  display: inline-block; background: var(--chip); color: var(--chip-fg);
  border-radius: 6px; padding: 1px 7px; margin-right: 4px; font-size: 11.5px; font-weight: 500;
}
.hint { color: var(--muted); font-size: 12.5px; }
.err { color: var(--err); } .ok { color: var(--ok); }

/* forms (subscriptions add) */
.stack label { display: block; color: var(--muted); font-size: 12.5px; margin-bottom: 12px; }
.stack input {
  display: block; width: 100%; margin-top: 5px; padding: 9px 11px;
  border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--fg); font-size: 14px;
}
.stack input:focus { outline: none; border-color: var(--accent); }

/* login */
.center { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login { width: 340px; padding: 28px; }
.login h1 { font-size: 19px; margin: 0 0 18px; text-align: center; }
.login label { display: block; color: var(--muted); font-size: 12.5px; margin-bottom: 12px; }
.login input {
  display: block; width: 100%; margin-top: 5px; padding: 9px 11px;
  border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--fg); font-size: 14px;
}
.login input:focus { outline: none; border-color: var(--accent); }
.login .btn { width: 100%; justify-content: center; margin-top: 4px; }
.login .err { margin: 0 0 12px; font-size: 13px; text-align: center; }

@media (max-width: 820px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .cols-3 { grid-template-columns: 1fr; }
}

/* generate page */
.gen-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: start;
}
.gen-grid > .card { margin-top: 0; }
.gen-form-fields { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px 16px; }
.gen-form .field, .gen-out .field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.gen-form-fields .field { margin-bottom: 0; }
.gen-form .field > span, .gen-out .field > span { font-size: 13px; color: var(--muted); }
.gen-form select, .gen-form input, .gen-out input, .gen-out textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--fg);
  border-radius: 8px;
  padding: 9px 10px;
  font: inherit;
}
.gen-out textarea {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.45;
  resize: vertical;
  min-height: 160px;
}
.gen-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.gen-actions { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.gen-form-footer { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border); }
.gen-form-footer .hint { max-width: 920px; margin: 0; line-height: 1.7; }
.gen-form-footer .btn { min-width: 112px; justify-content: center; }
.chip {
  display: inline-flex; align-items: center;
  background: var(--chip); color: var(--chip-fg);
  border-radius: 999px; padding: 6px 10px; font-size: 12.5px;
}
@media (max-width: 900px) {
  .gen-form-fields { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  .gen-form-fields { grid-template-columns: 1fr; }
  .gen-form-footer { align-items: stretch; flex-direction: column; }
  .gen-form-footer .btn { width: 100%; }
}

/* ===== docs page (warp-docs) ===== */
.doc-hint { color: var(--muted); font-size: 12.5px; margin: 10px 0 0; }
.doc-h3 { font-size: 14px; font-weight: 600; margin: 18px 0 8px; }
.doc-h3:first-of-type { margin-top: 0; }

.ep-row {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 0; border-bottom: 1px solid var(--border);
}
.ep-row:last-of-type { border-bottom: 0; }
.ep-lbl { width: 150px; flex-shrink: 0; color: var(--muted); font-size: 13px; }
.ep-val {
  flex: 1; min-width: 0; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 6px; padding: 6px 10px; overflow-x: auto; white-space: nowrap;
}

.flow {
  display: flex; align-items: stretch; gap: 8px; flex-wrap: wrap;
  padding: 14px; background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
}
.flow-node {
  flex: 1 1 120px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 12px; text-align: center; box-shadow: var(--shadow);
}
.flow-node strong { display: block; font-size: 13px; }
.flow-node span { display: block; color: var(--muted); font-size: 11.5px; margin-top: 3px; }
.flow-node.flow-target { border-color: var(--ok); }
.flow-node.flow-target strong { color: var(--ok); }
.flow-arrow {
  display: flex; align-items: center; color: var(--muted); font-size: 16px; font-weight: 600;
}

.code-block {
  background: #0f1420; border-radius: 10px; overflow: hidden;
  border: 1px solid var(--border); margin: 8px 0 4px;
}
.code-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 12px; background: rgba(255,255,255,.05);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.code-head span { color: #8b93a7; font-size: 11.5px; font-family: ui-monospace, monospace; }
.copy-btn {
  background: transparent; border: 1px solid rgba(255,255,255,.25); color: #c8d0e0;
  border-radius: 6px; padding: 3px 10px; font-size: 11.5px; cursor: pointer;
}
.copy-btn:hover { background: rgba(255,255,255,.1); }
.code-block pre {
  margin: 0; padding: 12px 14px; overflow-x: auto;
  color: #dbe2ef; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12.5px; line-height: 1.6; white-space: pre;
}

.note {
  display: flex; gap: 10px; align-items: flex-start;
  background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
  padding: 11px 14px; font-size: 13px; margin-bottom: 10px;
}
.note:last-child { margin-bottom: 0; }
.note.warn { border-color: #f59e0b; background: rgba(245,158,11,.08); }
.note-ico { font-size: 15px; line-height: 1.4; }
.note code { background: var(--panel); border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px; font-size: 12px; }

@media (max-width: 640px) {
  .ep-row { flex-wrap: wrap; }
  .ep-lbl { width: 100%; }
  .flow-arrow { display: none; }
  .flow { flex-direction: column; }
  .flow-node { flex: 1 1 auto; }
}

.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; word-break: break-all; }