/* ===== Design tokens ===== */
:root {
  --bg: #0b1020;
  --bg-soft: #121931;
  --surface: #161f3d;
  --surface-2: #1d2950;
  --border: #28335c;
  --fg: #e8edff;
  --muted: #9aa6cf;
  --accent: #6ea8fe;
  --accent-2: #8b7bff;
  --accent-grad: linear-gradient(135deg, #6ea8fe 0%, #8b7bff 100%);
  --success: #57d9a3;
  --warn: #ffcf6e;
  --danger: #ff7a85;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --shadow-sm: 0 4px 14px rgba(0,0,0,.25);
  --ring: 0 0 0 3px rgba(110,168,254,.35);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(139,123,255,.18), transparent 60%),
              radial-gradient(900px 500px at -10% 10%, rgba(110,168,254,.16), transparent 55%),
              var(--bg);
  color: var(--fg);
  line-height: 1.55;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.9rem; margin: .2rem 0 1rem; letter-spacing: -.02em; }
h2 { letter-spacing: -.01em; }
p.lead { color: var(--muted); font-size: 1.1rem; }
/* ===== Header ===== */
header.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; justify-content: space-between; align-items: center;
  padding: .9rem 1.5rem;
  background: rgba(11,16,32,.72);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: .55rem; font-weight: 800; color: var(--fg); font-size: 1.05rem; }
.brand:hover { text-decoration: none; }
.brand .logo { width: 30px; height: 30px; border-radius: 9px; background: var(--accent-grad); display: grid; place-items: center; box-shadow: var(--shadow-sm); }
header.nav nav { display: flex; align-items: center; gap: 1.1rem; }
header.nav nav a { color: var(--muted); font-weight: 600; font-size: .95rem; }
header.nav nav a:hover { color: var(--fg); text-decoration: none; }
/* ===== Layout ===== */
main { max-width: 1040px; margin: 2.2rem auto; padding: 0 1.25rem; }
.row { display: flex; gap: 1rem; align-items: center; }
.row.between { justify-content: space-between; }
.row.wrap { flex-wrap: wrap; }
.stack > * + * { margin-top: 1rem; }
.muted { color: var(--muted); }
.center { text-align: center; }
/* ===== Cards ===== */
.card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-soft) 100%);
  border: 1px solid var(--border);
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.card.tight { padding: 1rem 1.15rem; }
/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  background: var(--accent-grad); color: #0b1020; font-weight: 700;
  border: none; padding: .7rem 1.25rem; border-radius: var(--radius-sm);
  cursor: pointer; transition: transform .08s ease, box-shadow .15s ease, opacity .15s;
  box-shadow: var(--shadow-sm);
}
.btn:hover { transform: translateY(-1px); text-decoration: none; box-shadow: var(--shadow); }
.btn:active { transform: translateY(0); }
.btn.ghost { background: transparent; color: var(--fg); border: 1px solid var(--border); box-shadow: none; }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn.sm { padding: .45rem .8rem; font-size: .85rem; }
.btn.block { width: 100%; justify-content: center; }
.link { background: none; border: none; color: var(--accent); cursor: pointer; font: inherit; padding: 0; }
.link:hover { text-decoration: underline; }
.link.danger { color: var(--danger); }
/* ===== Forms ===== */
label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .3rem; font-weight: 600; }
input, select, textarea {
  width: 100%; padding: .65rem .8rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: #0e1530; color: var(--fg);
  font: inherit; transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); }
.field { margin-bottom: 1rem; }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
fieldset { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: .7rem 1rem; }
fieldset legend { color: var(--muted); font-size: .8rem; padding: 0 .4rem; }
.checks { display: flex; gap: 1.2rem; flex-wrap: wrap; }
.checks label { display: flex; align-items: center; gap: .4rem; color: var(--fg); margin: 0; }
.checks input { width: auto; }
/* ===== Badges & pills ===== */
.badge { display: inline-flex; align-items: center; gap: .4rem; background: var(--surface-2); color: var(--fg); padding: .3rem .7rem; border-radius: 999px; font-size: .8rem; border: 1px solid var(--border); }
.badge.accent { background: rgba(110,168,254,.15); border-color: rgba(110,168,254,.4); color: var(--accent); }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.ok { background: var(--success); box-shadow: 0 0 8px var(--success); }
.dot.idle { background: var(--muted); }
.dot.warn { background: var(--warn); }
/* ===== Flash / alerts ===== */
.flash { display: flex; align-items: center; gap: .7rem; padding: .85rem 1.1rem; border-radius: var(--radius-sm); margin-bottom: 1.2rem; border: 1px solid; font-weight: 600; }
.flash.ok { background: rgba(87,217,163,.12); border-color: rgba(87,217,163,.4); color: var(--success); }
.flash.info { background: rgba(110,168,254,.12); border-color: rgba(110,168,254,.4); color: var(--accent); }
.flash.warn { background: rgba(255,207,110,.12); border-color: rgba(255,207,110,.4); color: var(--warn); }
.flash.err { background: rgba(255,122,133,.12); border-color: rgba(255,122,133,.4); color: var(--danger); }
/* ===== Monitor cards ===== */
.monitors { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.monitor { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.monitor .info { min-width: 0; }
.monitor .info h3 { margin: 0 0 .2rem; font-size: 1.05rem; }
.monitor .info .url { color: var(--muted); font-size: .85rem; word-break: break-all; }
.monitor .meta { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .6rem; }
.monitor .actions { display: flex; gap: .5rem; align-items: center; flex-shrink: 0; }
/* ===== Empty state ===== */
.empty { text-align: center; padding: 3rem 1rem; color: var(--muted); }
.empty .emoji { font-size: 2.5rem; }
/* ===== Pricing ===== */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.plan { display: flex; flex-direction: column; position: relative; }
.plan.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), var(--shadow); }
.plan .tag { position: absolute; top: -.7rem; right: 1rem; background: var(--accent-grad); color: #0b1020; font-size: .7rem; font-weight: 800; padding: .25rem .6rem; border-radius: 999px; }
.plan h2 { margin: 0; }
.plan .price { font-size: 2rem; font-weight: 800; margin: .3rem 0; letter-spacing: -.02em; }
.plan .price small { font-size: .9rem; color: var(--muted); font-weight: 600; }
.plan ul { list-style: none; padding: 0; margin: 1rem 0; flex: 1; }
.plan ul li { padding: .4rem 0; border-bottom: 1px dashed var(--border); display: flex; align-items: center; gap: .5rem; font-size: .92rem; }
.plan ul li::before { content: "✓"; color: var(--success); font-weight: 800; }
.plan ul li.no { color: var(--muted); }
.plan ul li.no::before { content: "—"; color: var(--muted); }
/* ===== Hero / landing ===== */
.hero { text-align: center; padding: 3.5rem 0 2rem; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.1; }
.hero .grad { background: var(--accent-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .cta { display: flex; gap: .8rem; justify-content: center; margin-top: 1.6rem; flex-wrap: wrap; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2.5rem; }
.feature .ic { font-size: 1.6rem; }
.feature h3 { margin: .5rem 0 .3rem; font-size: 1.05rem; }
.feature p { color: var(--muted); font-size: .92rem; margin: 0; }
/* ===== Diff ===== */
.diff { white-space: pre-wrap; background: #0a0f24; padding: 1rem; border-radius: var(--radius-sm); overflow: auto; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .82rem; border: 1px solid var(--border); }
.diff .add { color: var(--success); }
.diff .del { color: var(--danger); }
/* ===== Footer ===== */
footer.foot { max-width: 1040px; margin: 3rem auto 2rem; padding: 1.5rem 1.25rem 0; border-top: 1px solid var(--border); color: var(--muted); font-size: .85rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
/* ===== Responsive ===== */
@media (max-width: 800px) {
  .grid, .plans, .features { grid-template-columns: 1fr; }
  .monitor { flex-direction: column; }
  header.nav { padding: .8rem 1rem; }
}