:root {
  --bg: #0a0507;
  --panel: rgba(17, 7, 9, 0.88);
  --panel-solid: #110709;
  --field: #1c0b10;
  --raised: #2a0d15;
  --hover: #45121f;
  --border: #4a1622;
  --accent: #e3123f;
  --accent-hot: #ff2a57;
  --accent-dark: #8e0f2a;
  --text: #ecdde0;
  --muted: #a08389;
  --ok: #2bb567;
  --warn: #e0a030;
  --radius: 10px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  background: var(--bg) url("/static/background.jpg") center top / cover fixed no-repeat;
  font: 15px/1.6 "Inter", "Segoe UI", system-ui, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

footer { margin-top: auto; }

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 5, 7, 0.35), rgba(10, 5, 7, 0.75) 60%, rgba(10, 5, 7, 0.92));
  z-index: -1;
}

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

h1, h2, h3 { font-family: "Rajdhani", "Segoe UI", sans-serif; letter-spacing: 0.02em; line-height: 1.15; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.2rem, 6vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.2rem); }
h3 { font-size: 1.25rem; }

.wrap { width: min(1100px, 100% - 32px); margin: 0 auto; }

/* nav */
.nav { position: sticky; top: 0; z-index: 10; background: rgba(10, 5, 7, 0.82); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.nav .wrap { display: flex; align-items: center; gap: 20px; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font: 700 1.25rem "Rajdhani", sans-serif; }
.brand img { width: 36px; height: 36px; }
.brand:hover { text-decoration: none; }
.nav-links { margin-left: auto; display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.nav-links a { color: var(--text); font-weight: 500; }
.nav-links a:hover { color: var(--accent-hot); text-decoration: none; }

/* buttons */
.btn { display: inline-block; padding: 10px 22px; border-radius: 8px; border: 1px solid var(--border); background: var(--raised);
  color: var(--text); font: 600 15px "Inter", sans-serif; cursor: pointer; transition: background 0.15s, transform 0.15s; }
.btn:hover { background: var(--hover); text-decoration: none; }
.btn-accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-hot); transform: translateY(-1px); }
.btn-small { padding: 5px 11px; font-size: 13px; }
.btn-danger { border-color: var(--accent-dark); color: #ffb3c1; }

/* hero */
.hero { padding: 90px 0 70px; text-align: center; }
.hero img.logo { width: 132px; height: 132px; filter: drop-shadow(0 0 28px rgba(227, 18, 63, 0.45)); }
.hero h1 span { color: var(--accent); }
.hero p.lead { color: var(--muted); font-size: 1.15rem; max-width: 640px; margin: 0 auto 28px; }
.hero .actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

section { padding: 56px 0; }
.section-title { text-align: center; margin-bottom: 34px; }
.section-title p { color: var(--muted); margin: 0; }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }

.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.feature h3 { color: var(--accent); }
.feature p { margin: 0; color: var(--muted); }
.feature .icon { font-size: 26px; margin-bottom: 6px; }

.screenshot { display: block; width: 100%; max-width: 920px; margin: 0 auto; border-radius: var(--radius);
  border: 1px solid var(--border); box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6); }

/* pricing */
.plan { text-align: center; display: flex; flex-direction: column; gap: 8px; }
.plan .price { font: 700 2.6rem "Rajdhani", sans-serif; color: var(--text); }
.plan .period { color: var(--muted); margin-bottom: 12px; }
.plan.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 10px 40px rgba(227, 18, 63, 0.2); }
.plan .btn { margin-top: auto; }

.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li { counter-increment: step; display: flex; gap: 14px; align-items: flex-start; }
.steps li::before { content: counter(step); flex: none; width: 30px; height: 30px; border-radius: 50%; background: var(--accent);
  color: #fff; display: grid; place-items: center; font-weight: 700; }

details { border-bottom: 1px solid var(--border); padding: 12px 0; }
details summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 8px 0 0; }

/* forms */
.form-card { max-width: 560px; margin: 60px auto; }
label { display: block; font-weight: 600; margin: 12px 0 6px; }
input[type=text], input[type=password], input[type=number], select {
  width: 100%; padding: 11px 13px; border-radius: 8px; border: 1px solid var(--border); background: var(--field);
  color: var(--text); font: 15px "Inter", sans-serif; }
input:focus, select:focus { outline: none; border-color: var(--accent); }
.mono { font-family: "Consolas", "Cascadia Mono", monospace; letter-spacing: 0.03em; }
.row { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; }
.row > * { flex: 1 1 140px; }
.row > .btn { flex: 0 0 auto; }

.alert { padding: 11px 14px; border-radius: 8px; margin: 14px 0; border: 1px solid; }
.alert-error { background: rgba(227, 18, 63, 0.12); border-color: var(--accent-dark); color: #ffc2cf; }
.alert-ok { background: rgba(43, 181, 103, 0.12); border-color: #1e8f4e; color: #b9f3d0; }

.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; margin: 14px 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 99px; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; }
.badge-active { background: rgba(43, 181, 103, 0.18); color: #7ee2a8; }
.badge-unused { background: rgba(160, 131, 137, 0.18); color: var(--muted); }
.badge-expired { background: rgba(224, 160, 48, 0.18); color: #f2c46b; }
.badge-revoked { background: rgba(227, 18, 63, 0.2); color: #ff8aa3; }

/* admin */
.admin-wrap { width: min(1400px, 100% - 32px); margin: 24px auto 60px; }
.stats { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); margin-bottom: 18px; }
.stat { text-align: center; padding: 14px; }
.stat b { display: block; font: 700 1.9rem "Rajdhani", sans-serif; }
.stat span { color: var(--muted); font-size: 13px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; vertical-align: middle; }
th { color: var(--muted); font-weight: 600; position: sticky; top: 0; background: var(--panel-solid); }
tr:hover td { background: rgba(69, 18, 31, 0.35); }
td form { display: inline-flex; gap: 4px; margin: 0; }
td input[type=number] { width: 64px; padding: 5px 7px; font-size: 13px; }
.created-keys { background: var(--field); border: 1px dashed var(--accent); border-radius: 8px; padding: 12px 14px; white-space: pre; overflow-x: auto; }
.muted { color: var(--muted); }

footer { border-top: 1px solid var(--border); padding: 28px 0 40px; color: var(--muted); font-size: 13px; background: rgba(10, 5, 7, 0.7); }
footer .wrap { display: flex; gap: 16px; justify-content: space-between; flex-wrap: wrap; }

@media (max-width: 640px) {
  .nav .wrap { height: auto; padding: 10px 0; flex-wrap: wrap; }
  .nav-links { margin-left: 0; gap: 12px; }
  .hero { padding: 56px 0 40px; }
  .kv { grid-template-columns: 1fr; }
}