:root {
  color-scheme: dark;
  --bg: #07110f;
  --panel: rgba(16, 31, 27, 0.88);
  --panel-strong: #132a24;
  --border: rgba(166, 214, 194, 0.13);
  --text: #effaf5;
  --muted: #8fa99f;
  --green: #52e0a1;
  --green-dark: #163f32;
  --red: #ff7d75;
  --amber: #ffc96b;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 0%, rgba(33, 119, 88, .22), transparent 30rem),
    radial-gradient(circle at 95% 20%, rgba(194, 142, 51, .08), transparent 28rem),
    var(--bg);
}
button, input { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .42; }

.topbar {
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(24px, calc((100vw - 1240px) / 2));
  border-bottom: 1px solid var(--border);
  background: rgba(7, 17, 15, .82);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand, .top-actions, .status-line, .section-heading { display: flex; align-items: center; }
.brand { gap: 12px; }
.brand div { display: grid; }
.brand span:not(.brand-mark) { color: var(--muted); font-size: 10px; letter-spacing: .18em; margin-top: 2px; }
.brand-mark {
  width: 54px; height: 54px; display: grid; place-items: center;
  border: 1px solid rgba(82, 224, 161, .45); border-radius: 17px;
  color: var(--green); font-size: 24px; font-weight: 800;
  background: linear-gradient(145deg, rgba(82, 224, 161, .18), rgba(82, 224, 161, .03));
  box-shadow: inset 0 1px rgba(255,255,255,.08);
}
.brand-mark.small { width: 38px; height: 38px; border-radius: 12px; font-size: 17px; }
.top-actions { gap: 16px; }
.status-dot { color: var(--muted); font-size: 13px; }
.status-dot::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: #66736e; margin-right: 8px; }
.status-dot.connected::before { background: var(--green); box-shadow: 0 0 14px var(--green); }

.dashboard { max-width: 1240px; margin: 0 auto; padding: 30px 24px 64px; display: grid; gap: 18px; }
.panel { border: 1px solid var(--border); background: linear-gradient(145deg, rgba(19, 42, 36, .82), rgba(11, 25, 22, .9)); border-radius: 20px; box-shadow: var(--shadow); }
.hero { padding: 32px; display: flex; justify-content: space-between; gap: 32px; align-items: flex-end; overflow: hidden; position: relative; }
.hero::after { content: ""; position: absolute; width: 330px; height: 330px; border: 1px solid rgba(82,224,161,.08); border-radius: 50%; right: 22%; top: -240px; }
.hero h1 { font-size: clamp(28px, 4vw, 48px); margin: 12px 0 8px; letter-spacing: -.035em; }
.hero-copy { color: var(--muted); margin: 0; max-width: 650px; line-height: 1.6; }
.eyebrow { color: var(--green); font-size: 11px; font-weight: 750; letter-spacing: .2em; margin: 0; }
.status-line { gap: 12px; }
.runtime-pill, .tag { border-radius: 999px; padding: 7px 11px; font-size: 12px; border: 1px solid var(--border); background: rgba(255,255,255,.04); }
.runtime-pill.running { color: var(--green); background: rgba(82,224,161,.09); border-color: rgba(82,224,161,.22); }
.runtime-pill.error, .runtime-pill.recovery_required { color: var(--red); }
.runtime-pill.starting, .runtime-pill.pausing { color: var(--amber); }
.muted { color: var(--muted); }
.control-cluster { min-width: 215px; display: grid; gap: 10px; }
.control-button { padding: 14px 20px; }
.control-hint { text-align: center; color: var(--muted); font-size: 11px; }
.primary, .danger, .ghost { border-radius: 12px; padding: 12px 16px; border: 1px solid transparent; font-weight: 700; }
.primary { color: #062117; background: var(--green); box-shadow: 0 10px 28px rgba(82,224,161,.14); }
.danger { color: #ffd7d4; background: rgba(255,125,117,.1); border-color: rgba(255,125,117,.28); }
.ghost { color: var(--text); background: rgba(255,255,255,.035); border-color: var(--border); }
.small-button { padding: 7px 11px; font-size: 12px; }
.alert { padding: 14px 18px; border-radius: 14px; background: rgba(255,201,107,.09); border: 1px solid rgba(255,201,107,.2); color: #ffe4ae; }
.alert.critical { background: rgba(255,125,117,.09); border-color: rgba(255,125,117,.2); color: #ffd0cd; }
.hidden { display: none; }

.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.metric { padding: 22px; display: grid; gap: 8px; }
.metric span, .metric small { color: var(--muted); }
.metric span { font-size: 13px; }
.metric strong { font-size: 25px; letter-spacing: -.025em; }
.metric small { font-size: 12px; }
.positive { color: var(--green); }
.negative { color: var(--red); }
.two-column { display: grid; grid-template-columns: 1.35fr 1fr; gap: 18px; }
.two-column > .panel, main > .panel:not(.hero) { padding: 24px; }
.section-heading { justify-content: space-between; margin-bottom: 20px; }
.section-heading h2 { margin: 5px 0 0; font-size: 19px; }
.tag.live { color: var(--amber); background: rgba(255,201,107,.08); }
.config-list { margin: 0; display: grid; }
.config-list div { display: flex; justify-content: space-between; padding: 11px 0; border-bottom: 1px solid var(--border); }
.config-list div:last-child { border: 0; }
.config-list dt { color: var(--muted); }
.config-list dd { margin: 0; font-weight: 650; }
.position-list, .audit-list { display: grid; gap: 8px; }
.position-row { display: grid; grid-template-columns: 1fr 1fr; padding: 16px; border-radius: 14px; background: rgba(255,255,255,.026); border: 1px solid rgba(255,255,255,.04); }
.position-row > div { display: grid; grid-template-columns: auto 1fr; align-items: baseline; gap: 6px 10px; }
.position-row > div:last-child { text-align: right; }
.position-row small { color: var(--muted); grid-column: 2; }
.side { width: 27px; height: 27px; display: grid; place-items: center; border-radius: 8px; font-size: 12px; font-weight: 800; grid-row: 1 / 3; }
.side.long { color: var(--green); background: rgba(82,224,161,.1); }
.side.short { color: var(--red); background: rgba(255,125,117,.1); }
.audit-row { display: grid; grid-template-columns: 150px 220px 1fr; gap: 14px; padding: 11px 4px; border-bottom: 1px solid var(--border); font-size: 13px; }
.audit-row time, .audit-row span { color: var(--muted); }
.empty { color: var(--muted); padding: 28px 4px; text-align: center; }

.login-page { display: grid; place-items: center; }
.login-shell { width: min(440px, calc(100vw - 32px)); }
.login-card { padding: 38px; border: 1px solid var(--border); background: rgba(12,29,24,.94); box-shadow: var(--shadow); border-radius: 24px; }
.login-card h1 { font-size: 30px; margin: 22px 0 8px; }
.login-form { display: grid; gap: 16px; margin-top: 28px; }
label { display: grid; gap: 8px; color: var(--muted); font-size: 13px; }
input { width: 100%; border: 1px solid var(--border); border-radius: 11px; background: rgba(255,255,255,.045); color: var(--text); padding: 12px 14px; outline: none; }
input:focus { border-color: rgba(82,224,161,.55); box-shadow: 0 0 0 3px rgba(82,224,161,.08); }
.form-error { min-height: 18px; color: var(--red); margin: 0; font-size: 13px; }
.security-note { color: var(--muted); font-size: 11px; line-height: 1.6; margin: 22px 0 0; }
dialog { width: min(430px, calc(100vw - 30px)); border: 1px solid var(--border); border-radius: 20px; padding: 0; color: var(--text); background: #10241f; box-shadow: var(--shadow); }
dialog::backdrop { background: rgba(1,7,6,.76); backdrop-filter: blur(6px); }
dialog form { padding: 26px; display: grid; gap: 16px; }
dialog h2, dialog p { margin: 0; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 10px; }

@media (max-width: 840px) {
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .two-column { grid-template-columns: 1fr; }
  .hero { align-items: stretch; flex-direction: column; }
  .control-cluster { grid-template-columns: 1fr 1fr; }
  .control-hint { grid-column: 1 / 3; }
}
@media (max-width: 560px) {
  .dashboard { padding: 18px 12px 44px; }
  .topbar { padding: 0 14px; }
  .status-dot { font-size: 0; }
  .metric-grid { gap: 10px; }
  .metric { padding: 17px; }
  .metric strong { font-size: 20px; }
  .hero { padding: 24px 20px; }
  .position-row { grid-template-columns: 1fr; gap: 14px; }
  .position-row > div:last-child { text-align: left; }
  .audit-row { grid-template-columns: 1fr; gap: 4px; }
}