:root {
  color-scheme: dark;
  --bg: #06131c;
  --surface: #0c212c;
  --surface-2: #112e3a;
  --surface-3: #163947;
  --line: #204754;
  --text: #ecf4f3;
  --muted: #a1b9bc;
  --brand: #25bda6;
  --brand-light: #63e5cf;
  --amber: #ffc667;
  --red: #f47772;
  --green: #44d69b;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(circle at 86% -12%, rgba(37,189,166,.22), transparent 32%), var(--bg);
  color: var(--text);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}
a { color: inherit; text-decoration: none; }
.site-header {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 0 max(calc((100% - 1220px) / 2), 28px);
  border-bottom: 1px solid rgba(32,71,84,.65);
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(6,19,28,.88);
  backdrop-filter: blur(14px);
}
.brand img { display: block; width: min(218px, 38vw); max-height: 55px; object-fit: contain; }
nav { display: flex; align-items: center; gap: 27px; color: var(--muted); font-size: 14px; }
nav a:hover { color: var(--brand-light); }
#accountActions, .hero-buttons, .actions, .auth-tabs { display: flex; gap: 10px; align-items: center; }
.account-name { font-size: 14px; color: var(--text); }
button, .button {
  border: 0;
  background: var(--brand);
  color: #04201d;
  border-radius: 10px;
  padding: 12px 19px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform .18s, background .18s;
}
button:hover, .button:hover { transform: translateY(-1px); background: var(--brand-light); }
button.ghost, .button.secondary {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
}
button.danger { background: rgba(244,119,114,.17); color: #ffaaa5; border: 1px solid rgba(244,119,114,.36); }
button:disabled { opacity: .48; cursor: not-allowed; transform: none; }
main { max-width: 1220px; margin: 0 auto; padding: 0 28px 50px; }
.hero {
  min-height: 565px;
  display: grid;
  grid-template-columns: minmax(420px, 1fr) 385px;
  align-items: center;
  gap: 66px;
}
.eyebrow {
  margin: 0 0 13px;
  color: var(--brand-light);
  letter-spacing: .15em;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}
h1 { margin: 0 0 19px; max-width: 720px; font-size: clamp(44px, 5.1vw, 66px); line-height: 1.03; letter-spacing: -.055em; }
h2 { font-size: clamp(28px, 3vw, 38px); line-height: 1.1; margin: 0; letter-spacing: -.035em; }
h3 { font-size: 20px; margin: 0 0 17px; letter-spacing: -.02em; }
.lead { margin: 0 0 31px; color: var(--muted); font-size: 18px; line-height: 1.65; max-width: 650px; }
.trust-row { display: flex; gap: 22px; color: var(--muted); font-size: 13px; margin-top: 33px; }
.trust-row span:before { content: "✓"; color: var(--green); margin-right: 8px; font-weight: 800; }
.rate-card, .panel, .cards article {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(17,46,58,.96), rgba(9,26,36,.96));
  border-radius: 18px;
}
.rate-card { padding: 29px; box-shadow: 0 28px 70px rgba(0,0,0,.22); }
.rate { padding: 18px 0 22px; border-bottom: 1px solid var(--line); display: grid; gap: 5px; }
.rate strong { color: var(--text); font-size: 57px; line-height: 1; letter-spacing: -.07em; }
.rate span { color: var(--muted); }
.rate.sensor strong { font-size: 44px; color: var(--brand-light); }
.small { font-size: 13px; color: var(--muted); line-height: 1.6; margin: 18px 0 0; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 70px; }
.cards article { padding: 25px; }
.cards h2 { margin-bottom: 11px; color: var(--text); }
.cards p:last-child { color: var(--muted); line-height: 1.6; margin: 0; }
.section { border-top: 1px solid var(--line); padding: 62px 0; }
.two-col { display: grid; grid-template-columns: .9fr 1.1fr; gap: 74px; }
.steps { list-style: none; padding: 0; margin: 0; counter-reset: count; display: grid; gap: 15px; }
.steps li { padding: 17px 18px 17px 63px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; position: relative; }
.steps li:before { counter-increment: count; content: counter(count); position: absolute; left: 18px; top: 19px; color: var(--brand-light); font-size: 24px; font-weight: 800; }
.steps strong { display: block; margin-bottom: 6px; }
.steps span { color: var(--muted); font-size: 14px; }
.privacy { display: grid; gap: 36px; }
.privacy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.privacy-grid p { color: var(--muted); line-height: 1.65; margin: 0; }
.privacy-grid strong { color: var(--text); display: block; margin-bottom: 7px; }
.workspace { border-top: 1px solid var(--line); margin-top: 24px; padding: 52px 0 20px; scroll-margin-top: 84px; }
.workspace-head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 25px; }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.metric { padding: 16px; border-radius: 13px; border: 1px solid var(--line); background: var(--surface); }
.metric span { color: var(--muted); font-size: 12px; display: block; margin-bottom: 9px; }
.metric strong { font-size: 29px; letter-spacing: -.04em; }
.workspace-grid { display: grid; grid-template-columns: 1.1fr .9fr .85fr; gap: 14px; }
.panel { padding: 21px; }
.panel-head { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; }
.pill { background: rgba(68,214,155,.12); color: var(--green); border-radius: 30px; padding: 6px 10px; font-size: 12px; }
label { display: grid; gap: 7px; font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 12px; }
label.check { display: flex; gap: 10px; align-items: flex-start; line-height: 1.45; margin: 15px 0; }
input, select, textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: #061a24;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 11px 12px;
}
input[type=checkbox] { width: 17px; margin-top: 1px; accent-color: var(--brand); }
textarea { resize: vertical; }
form { margin-top: 17px; }
.tracking-rate { margin: 20px 0; padding: 16px; border-radius: 12px; background: var(--surface-3); color: var(--muted); display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.tracking-rate strong { color: var(--brand-light); font-size: 32px; }
.tracking-rate span { margin-left: auto; }
.status { min-height: 21px; color: var(--muted); font-size: 13px; line-height: 1.5; margin: 14px 0 0; }
.status.error { color: #ffaaa5; }
.status.success { color: var(--green); }
.history-grid, .admin-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 14px; }
.data-list { display: grid; gap: 9px; }
.item { padding: 12px; border: 1px solid var(--line); background: rgba(6,19,28,.5); border-radius: 10px; font-size: 13px; }
.item-head { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 7px; }
.item strong { color: var(--text); }
.item span, .item p { color: var(--muted); margin: 3px 0; line-height: 1.45; }
.tag { color: var(--brand-light) !important; text-transform: capitalize; }
.item .review { display: flex; gap: 7px; margin-top: 9px; }
.item .review button { padding: 7px 11px; font-size: 12px; }
.empty { color: var(--muted); padding: 15px 0; font-size: 13px; }
.hidden { display: none !important; }
.site-footer { max-width: 1220px; margin: 45px auto 0; padding: 25px 28px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 15px; color: var(--muted); font-size: 13px; }
dialog {
  width: min(450px, calc(100% - 32px));
  padding: 29px;
  border: 1px solid var(--line);
  border-radius: 18px;
  color: var(--text);
  background: #091d27;
  box-shadow: 0 34px 100px rgba(0,0,0,.5);
}
dialog::backdrop { background: rgba(2,10,15,.7); backdrop-filter: blur(4px); }
.close { position: absolute; top: 12px; right: 12px; padding: 7px 12px; color: var(--muted); background: transparent; font-size: 22px; }
.auth-tabs { margin-bottom: 20px; }
.auth-tabs button { flex: 1; background: var(--surface-2); color: var(--muted); font-size: 13px; padding: 10px; }
.auth-tabs button.active { color: #031f1b; background: var(--brand); }
.auth-form h2 { font-size: 26px; margin: 0 0 20px; }
.auth-form button { width: 100%; margin-top: 5px; }
@media (max-width: 980px) {
  .site-header { padding: 0 18px; }
  nav { display: none; }
  main { padding: 0 18px 40px; }
  .hero { display: block; min-height: 0; padding: 60px 0 45px; }
  .rate-card { margin-top: 38px; }
  .cards, .privacy-grid, .workspace-grid, .history-grid, .admin-grid { grid-template-columns: 1fr; }
  .two-col { display: block; }
  .steps { margin-top: 30px; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .site-header { height: 68px; }
  #accountActions button:first-child { display: none; }
  .account-name { display: none; }
  h1 { font-size: 41px; }
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .trust-row { display: grid; gap: 10px; }
  .cards { margin-bottom: 46px; }
  .section { padding: 46px 0; }
  .workspace-head, .site-footer { display: block; }
  .workspace-head button { margin-top: 18px; }
}