:root {
  --bg: #0b0d12;
  --bg-soft: #12151d;
  --panel: #171b24;
  --panel-2: #1e2330;
  --border: #262c3a;
  --text: #e7ebf3;
  --muted: #8b93a7;
  --accent: #6ee7b7;
  --accent-2: #38bdf8;
  --danger: #f87171;
  --warn: #fbbf24;
  --radius: 14px;
  --shadow: 0 10px 40px rgba(0,0,0,.45);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: radial-gradient(1200px 600px at 70% -10%, #16324a33, transparent),
              radial-gradient(900px 500px at 10% 10%, #1f4d3a2e, transparent),
              var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1040px; margin: 0 auto; padding: 28px 22px 64px; }
.wrap-narrow { max-width: 460px; margin: 0 auto; padding: 40px 22px; }

/* Top nav */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1040px; margin: 0 auto; padding: 20px 22px;
}
.brand { font-weight: 800; letter-spacing: -.02em; font-size: 20px; }
.brand span { color: var(--accent); }
.nav-links { display: flex; gap: 10px; align-items: center; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px; border-radius: 11px; font-weight: 650; font-size: 15px;
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  cursor: pointer; transition: transform .05s ease, border-color .15s, background .15s;
}
.btn:hover { text-decoration: none; border-color: #37405400; background: #232838; }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(180deg, var(--accent), #34d399);
  color: #062018; border: none;
}
.btn-primary:hover { background: linear-gradient(180deg, #7ff0c4, #34d399); }
.btn-ghost { background: transparent; }
.btn-sm { padding: 7px 12px; font-size: 13px; border-radius: 9px; }
.btn-danger { color: var(--danger); }

/* Hero */
.hero { text-align: center; padding: 70px 0 40px; }
.hero h1 {
  font-size: clamp(30px, 6vw, 54px); line-height: 1.05; letter-spacing: -.03em;
  margin: 0 0 18px; font-weight: 850;
  background: linear-gradient(180deg, #fff, #b7c0d4);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p { color: var(--muted); font-size: clamp(16px, 2.4vw, 20px); max-width: 640px; margin: 0 auto 30px; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* Cards / panels */
.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow);
}
.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* Model price chips */
.models { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); margin-top: 34px; }
.model {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 18px;
}
.model h3 { margin: 0 0 6px; font-family: var(--mono); font-size: 15px; color: var(--accent); }
.model .price { font-size: 22px; font-weight: 750; }
.model .price small { color: var(--muted); font-weight: 500; font-size: 13px; }

/* Forms */
label { display: block; font-size: 13px; color: var(--muted); margin: 14px 0 6px; }
input[type=text], input[type=password], input[type=number], select {
  width: 100%; padding: 12px 14px; border-radius: 11px; font-size: 15px;
  background: var(--bg-soft); border: 1px solid var(--border); color: var(--text);
  font-family: var(--sans);
}
input:focus, select:focus { outline: none; border-color: var(--accent-2); }

.title { font-size: 26px; font-weight: 800; letter-spacing: -.02em; margin: 0 0 6px; }
.sub { color: var(--muted); margin: 0 0 22px; }

.error { background: #3a1b1f; border: 1px solid #6b2b31; color: #ffc9cd; padding: 10px 14px; border-radius: 10px; font-size: 14px; margin: 12px 0; }
.notice { background: #15352b; border: 1px solid #245a45; color: #b7f5da; padding: 12px 14px; border-radius: 10px; margin: 12px 0; }

/* Balance pill */
.balance {
  display: inline-flex; align-items: baseline; gap: 8px;
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 12px;
  padding: 10px 16px;
}
.balance .amt { font-size: 26px; font-weight: 800; color: var(--accent); }

/* Code block */
pre.code {
  background: #0a0c11; border: 1px solid var(--border); border-radius: 11px;
  padding: 16px; overflow-x: auto; font-family: var(--mono); font-size: 13px;
  color: #cbd5e1; line-height: 1.6;
}
.key-reveal { font-family: var(--mono); font-size: 14px; word-break: break-all; color: var(--accent); }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
td.mono, th.mono { font-family: var(--mono); }
.tag { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.tag-ok { background: #12352a; color: var(--accent); }
.tag-off { background: #3a1b1f; color: var(--danger); }
.bar { height: 6px; background: var(--panel-2); border-radius: 999px; overflow: hidden; margin-top: 4px; }
.bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.row { display: flex; gap: 8px; align-items: center; }
.section { margin-top: 34px; }
.section h2 { font-size: 18px; margin: 0 0 14px; }
.muted { color: var(--muted); }
.right { text-align: right; }
.inline-form { display: inline-flex; gap: 6px; align-items: center; }
.inline-form input { width: 90px; padding: 6px 9px; }