:root {
  --bg: #0a0a0a;
  --bg-elev: #0f0f0f;
  --fg: #f5f3ee;
  --muted: #8a8378;
  --accent: #b8915a;
  --accent-dim: #8a6c44;
  --hairline: rgba(245,243,238,0.08);
  --hairline-strong: rgba(245,243,238,0.16);
  --danger: #c2735c;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; background: var(--bg); color: var(--fg); }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

code, pre { font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 12.5px; }
pre { background: rgba(245,243,238,0.04); border: 1px solid var(--hairline); border-radius: 6px; padding: 12px 16px; overflow-x: auto; }

input, button, textarea, select {
  font: inherit;
  color: inherit;
  background: transparent;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  padding: 8px 12px;
  outline: none;
}
input:focus, textarea:focus { border-color: var(--accent); }

button {
  cursor: pointer;
  background: var(--accent);
  color: var(--bg);
  border: none;
  font-weight: 500;
  padding: 9px 16px;
}
button:hover { background: var(--accent-dim); }
button.secondary {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--hairline);
}
button.secondary:hover { border-color: var(--accent); color: var(--accent); background: transparent; }
button.danger { background: var(--danger); }
button.danger:hover { background: #a05c47; }
button:disabled { opacity: 0.4; cursor: not-allowed; }

.brand-mono {
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  height: 56px;
  padding: 0 32px;
  border-bottom: 1px solid var(--hairline);
}
.topbar .brand {
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-right: 32px;
  font-weight: 500;
}
.topbar nav { display: flex; gap: 4px; flex: 1; }
.topbar nav a {
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 13px;
  text-decoration: none;
}
.topbar nav a:hover { color: var(--fg); background: rgba(245,243,238,0.03); text-decoration: none; }
.topbar nav a.active { color: var(--fg); }
.topbar .right { display: flex; align-items: center; gap: 16px; }
.topbar .user-email { color: var(--muted); font-size: 13px; }

/* Page */
main {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 32px;
}

h1 {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}
h2 {
  font-size: 18px;
  font-weight: 600;
  margin-top: 40px;
  margin-bottom: 12px;
}
p.lede { font-size: 15px; color: var(--muted); margin-bottom: 24px; }

/* Auth forms (signup/login) */
.auth-wrap {
  max-width: 380px;
  margin: 80px auto;
  padding: 0 24px;
}
.auth-wrap .brand-mono { margin-bottom: 24px; text-align: center; }
.auth-wrap h1 { font-size: 22px; margin-bottom: 24px; text-align: center; }
.auth-wrap form { display: flex; flex-direction: column; gap: 12px; }
.auth-wrap input { width: 100%; }
.auth-wrap button { width: 100%; padding: 10px; }
.auth-wrap .alt {
  margin-top: 16px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}
.auth-wrap .err {
  color: var(--danger);
  font-size: 13px;
  margin-top: 6px;
  min-height: 18px;
}

/* Stat strip */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--hairline);
  border-radius: 8px;
  margin-bottom: 32px;
  overflow: hidden;
}
.stat {
  padding: 16px 20px;
  border-right: 1px solid var(--hairline);
}
.stat:last-child { border-right: none; }
.stat-label { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 6px; }
.stat-value { font-size: 20px; font-weight: 600; font-family: 'JetBrains Mono', ui-monospace, monospace; }
.stat-sub { color: var(--muted); font-size: 11px; margin-top: 4px; }

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table th, table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--hairline);
}
table th {
  font-weight: 500;
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--hairline-strong);
}
table td { color: var(--fg); }
table td.num { text-align: right; font-variant-numeric: tabular-nums; font-family: 'JetBrains Mono', ui-monospace, monospace; }
table tr:hover td { background: rgba(245,243,238,0.02); }

/* Inline section header */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-top: 40px;
  margin-bottom: 12px;
}
.section-head h2 { margin: 0; }
.section-head .actions { display: flex; gap: 8px; }

/* Inline form bar (e.g., create key) */
.form-bar {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 12px 0;
  margin-bottom: 8px;
}
.form-bar input { flex: 1; }

/* Period selector */
.period-tabs { display: flex; gap: 4px; }
.period-tabs button {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--hairline);
  padding: 4px 10px;
  font-size: 12px;
  border-radius: 4px;
  font-weight: 400;
}
.period-tabs button.active { color: var(--fg); border-color: var(--accent); }
.period-tabs button:hover { color: var(--fg); }

/* Toast / banner */
.banner {
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--accent);
  padding: 14px 18px;
  border-radius: 4px;
  font-size: 13px;
  color: var(--fg);
  margin-bottom: 16px;
  background: rgba(184,145,90,0.06);
}
.banner.danger { border-left-color: var(--danger); background: rgba(194,115,92,0.06); }

/* Bar chart (CSS-only) */
.bar-chart {
  display: flex;
  align-items: flex-end;
  height: 120px;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 24px;
}
.bar-chart .bar {
  flex: 1;
  background: var(--accent);
  opacity: 0.7;
  position: relative;
  min-height: 2px;
  border-radius: 1px 1px 0 0;
}
.bar-chart .bar:hover { opacity: 1; }
.bar-chart .bar::after {
  content: attr(data-label);
  position: absolute;
  bottom: -18px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 10px;
  color: var(--muted);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}

/* Reveal-once key */
.key-reveal {
  background: rgba(184,145,90,0.08);
  border: 1px solid var(--accent);
  padding: 16px;
  border-radius: 6px;
  margin-bottom: 16px;
}
.key-reveal .label { font-size: 11px; color: var(--accent); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 8px; }
.key-reveal .value {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 13px;
  word-break: break-all;
  background: var(--bg);
  padding: 10px 12px;
  border-radius: 4px;
  border: 1px solid var(--hairline);
}
.key-reveal .warn { color: var(--accent); font-size: 12px; margin-top: 8px; }

/* Empty state */
.empty {
  padding: 32px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--hairline);
  border-radius: 6px;
}

footer {
  margin-top: 80px;
  padding: 24px 32px;
  border-top: 1px solid var(--hairline);
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}