:root {
  --bg: #0a0c0b;
  --panel: #121614;
  --panel-2: #171c1a;
  --border: #242b28;
  --text: #e9efec;
  --muted: #96a29d;
  --accent: #3ddc84;
  --accent-ink: #05130c;
  --danger: #ff6b6b;
  --warn: #ffc857;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0;
}
nav .brand { font-weight: 800; font-size: 20px; color: var(--text); letter-spacing: -0.02em; }
nav .brand span { color: var(--accent); }
nav .links { display: flex; gap: 18px; align-items: center; }
nav .links a { color: var(--muted); font-size: 15px; }
nav .links a:hover { color: var(--text); text-decoration: none; }

.btn {
  display: inline-block; border: 0; cursor: pointer;
  background: var(--accent); color: var(--accent-ink);
  font-weight: 700; font-size: 15px;
  padding: 11px 20px; border-radius: 9px;
  transition: filter .15s ease;
}
.btn:hover { filter: brightness(1.08); text-decoration: none; }
.btn.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn.secondary:hover { border-color: var(--muted); }
.btn.block { display: block; width: 100%; text-align: center; }
.btn:disabled { opacity: .55; cursor: default; }

.hero { padding: 70px 0 50px; text-align: center; }
.hero h1 {
  font-size: clamp(34px, 5.4vw, 58px);
  line-height: 1.08; letter-spacing: -0.03em;
  margin: 0 auto 18px; max-width: 850px; font-weight: 800;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p { color: var(--muted); font-size: 19px; max-width: 620px; margin: 0 auto 30px; }
.hero .cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero .fineprint { margin-top: 14px; font-size: 13px; color: var(--muted); }

.panel {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius);
}

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 40px 0; }
.step { padding: 24px; }
.step .num {
  display: inline-flex; width: 30px; height: 30px; align-items: center; justify-content: center;
  background: var(--accent); color: var(--accent-ink); border-radius: 50%; font-weight: 800; font-size: 14px;
  margin-bottom: 12px;
}
.step h3 { margin: 0 0 6px; font-size: 17px; }
.step p { margin: 0; color: var(--muted); font-size: 14.5px; }

.section-title { text-align: center; font-size: 30px; letter-spacing: -0.02em; margin: 60px 0 6px; }
.section-sub { text-align: center; color: var(--muted); margin: 0 0 28px; }

.pricing { max-width: 400px; margin: 0 auto; padding: 32px; text-align: center; }
.pricing .price { font-size: 46px; font-weight: 800; letter-spacing: -0.03em; }
.pricing .price small { font-size: 15px; color: var(--muted); font-weight: 500; }
.pricing ul { list-style: none; padding: 0; margin: 20px 0 26px; text-align: left; }
.pricing li { padding: 8px 0; color: var(--muted); font-size: 15px; border-bottom: 1px dashed var(--border); }
.pricing li::before { content: "✓"; color: var(--accent); font-weight: 800; margin-right: 10px; }

footer { border-top: 1px solid var(--border); margin-top: 70px; padding: 26px 0; color: var(--muted); font-size: 13.5px; text-align: center; }

.auth-box { max-width: 400px; margin: 60px auto; padding: 30px; }
.auth-box h1 { margin: 0 0 4px; font-size: 24px; letter-spacing: -0.02em; }
.auth-box .sub { color: var(--muted); font-size: 14.5px; margin-bottom: 22px; }

label { display: block; font-size: 13px; color: var(--muted); margin: 14px 0 6px; font-weight: 600; }
input[type=text], input[type=email], input[type=password], input[type=tel], input[type=url], textarea, select {
  width: 100%; background: var(--panel-2); border: 1px solid var(--border);
  color: var(--text); border-radius: 9px; padding: 11px 13px; font-size: 15px;
  font-family: inherit;
}
input:focus, textarea:focus { outline: none; border-color: var(--accent); }
textarea { min-height: 96px; resize: vertical; }

.error { color: var(--danger); font-size: 14px; margin-top: 12px; min-height: 18px; }
.muted { color: var(--muted); }
.tiny { font-size: 12.5px; }

.app-shell { display: grid; grid-template-columns: 1fr; gap: 18px; padding: 10px 0 50px; }
.app-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.app-head h1 { font-size: 24px; margin: 0; letter-spacing: -0.02em; }

.banner { padding: 14px 18px; border-radius: var(--radius); font-size: 14.5px; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.banner.warn { background: rgba(255, 200, 87, .1); border: 1px solid rgba(255, 200, 87, .35); color: var(--warn); }
.banner.ok { background: rgba(61, 220, 132, .08); border: 1px solid rgba(61, 220, 132, .3); color: var(--accent); }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.stat { padding: 18px 20px; }
.stat .v { font-size: 32px; font-weight: 800; letter-spacing: -0.03em; }
.stat .l { color: var(--muted); font-size: 13px; margin-top: 2px; }

.grid-2 { display: grid; grid-template-columns: 1.4fr 1fr; gap: 18px; align-items: start; }
.card { padding: 20px 22px; }
.card h2 { margin: 0 0 14px; font-size: 16px; letter-spacing: -0.01em; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; color: var(--muted); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: .04em; padding: 8px 10px; border-bottom: 1px solid var(--border); }
td { padding: 11px 10px; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: 0; }

.pill { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.pill.green { background: rgba(61,220,132,.14); color: var(--accent); }
.pill.gray { background: rgba(150,162,157,.14); color: var(--muted); }
.pill.yellow { background: rgba(255,200,87,.14); color: var(--warn); }

.thread { display: flex; flex-direction: column; gap: 8px; max-height: 380px; overflow-y: auto; }
.msg { padding: 10px 13px; border-radius: 10px; font-size: 14px; max-width: 88%; }
.msg.in { background: var(--panel-2); border: 1px solid var(--border); align-self: flex-start; }
.msg.out { background: rgba(61,220,132,.12); border: 1px solid rgba(61,220,132,.3); align-self: flex-end; }
.msg .meta { font-size: 11.5px; color: var(--muted); margin-bottom: 3px; }

.empty { color: var(--muted); font-size: 14px; padding: 14px 0; }

@media (max-width: 860px) {
  .steps, .stats, .grid-2 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
}