:root {
  --bg: #070b14;
  --panel: #101826;
  --panel2: #152033;
  --line: #243049;
  --text: #e8eefc;
  --muted: #8fa0bd;
  --accent: #2dd4bf;
  --accent2: #38bdf8;
  --danger: #fb7185;
  --ok: #34d399;
  --warn: #fbbf24;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "DM Sans", system-ui, sans-serif;
  background: radial-gradient(900px 500px at 0% -10%, #16324a 0%, var(--bg) 50%);
  color: var(--text);
}
a { color: var(--accent); text-decoration: none; }
.layout { display: grid; grid-template-columns: 250px 1fr; min-height: 100vh; }
.side {
  background: #0c1320;
  border-right: 1px solid var(--line);
  padding: 22px 14px;
  position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; gap: 10px; align-items: center; padding: 0 10px 22px; }
.brand b { font-size: 20px; }
.brand small { display: block; color: var(--muted); font-weight: 400; }
.logo {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: grid; place-items: center; color: #04221c; font-weight: 800;
}
.nav a {
  display: flex; align-items: center; gap: 8px;
  color: var(--muted); padding: 10px 12px; border-radius: 10px; margin-bottom: 4px;
}
.nav a:hover, .nav a.active { background: var(--panel2); color: var(--text); }
.main { padding: 28px; }
.top { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 22px; }
h1 { margin: 0; font-size: 26px; }
.sub { color: var(--muted); margin: 4px 0 0; }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.card, .box {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 18px;
}
.card .k { color: var(--muted); font-size: 13px; }
.card .v { font-size: 28px; font-weight: 700; margin-top: 6px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: #04221c; font-weight: 700; border: 0;
  border-radius: 12px; padding: 10px 14px; cursor: pointer; font: inherit;
}
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn.danger { background: #3a1520; color: #fecdd3; }
.btn.small { padding: 7px 10px; font-size: 13px; }
label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 6px; }
input, select, textarea {
  width: 100%; padding: 11px 12px; border-radius: 12px; border: 1px solid var(--line);
  background: #0d1524; color: var(--text); font: inherit;
}
textarea { min-height: 90px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); font-size: 14px; }
th { color: var(--muted); font-weight: 500; }
.flash { padding: 12px 14px; border-radius: 12px; margin-bottom: 14px; }
.flash.ok { background: #0f2e28; border: 1px solid #2dd4bf44; }
.flash.error { background: #3a1520; border: 1px solid #fb718544; }
.badge { display: inline-block; padding: 3px 8px; border-radius: 999px; font-size: 12px; background: #1b273b; color: var(--muted); }
.badge.on { background: #0f2e28; color: var(--ok); }
.badge.off { background: #3a1520; color: var(--danger); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.check { display: flex; align-items: center; gap: 8px; color: var(--text); margin-top: 12px; }
.check input { width: auto; }
.help { font-size: 13px; color: var(--muted); line-height: 1.5; }
code { background: #0d1524; padding: 2px 6px; border-radius: 6px; color: #7dd3fc; font-size: 12px; }
.steps { display: flex; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
.steps span { padding: 6px 10px; border-radius: 999px; background: #152033; color: var(--muted); font-size: 13px; }
.steps span.on { background: var(--accent); color: #04221c; font-weight: 700; }
@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .side { position: relative; height: auto; }
  .cards, .row, .row3 { grid-template-columns: 1fr; }
}

.phone-app { max-width: 430px; margin: 0 auto; min-height: 100vh; background: #0a101c; display: flex; flex-direction: column; }
.phone-top { padding: 22px 20px 10px; }
.dial { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; padding: 16px 28px; }
.dial button {
  height: 68px; border-radius: 50%; border: 1px solid var(--line); background: #152033;
  color: var(--text); font-size: 24px; cursor: pointer;
}
.phone-input {
  width: calc(100% - 40px); margin: 10px 20px; text-align: center; font-size: 28px;
  background: transparent; border: 0; color: var(--text);
}
.phone-nav { display: flex; justify-content: space-around; padding: 12px; border-top: 1px solid var(--line); margin-top: auto; }
.phone-nav button { background: none; border: 0; color: var(--muted); cursor: pointer; font: inherit; }
.phone-nav button.on { color: var(--accent); }
.incoming {
  position: fixed; inset: 0; background: #0a101cee; display: none; place-items: center; text-align: center; padding: 24px;
}
.incoming.show { display: grid; }
.incoming .actions { display: flex; gap: 24px; justify-content: center; margin-top: 24px; }
.accept, .reject { width: 72px; height: 72px; border-radius: 50%; border: 0; font-size: 28px; cursor: pointer; }
.accept { background: var(--ok); }
.reject { background: var(--danger); }