:root {
  --bg: #060606;
  --paper: #0d0d0d;
  --ink: #f2f2f2;
  --ink-soft: #d6d6d6;
  --line: #232323;
  --rule: #2b2b2b;
  --line-strong: #3a3a3a;
  --muted: #9c9c9c;
  --faint: #6f6f6f;
  --danger: #ff6b6b;
  --accent: #7c5cff;
  --radius: 12px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
  --font-sans: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  color-scheme: dark;
}

/* ---------- Login ---------- */
#login {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: radial-gradient(1200px 700px at 50% -10%, #141414, var(--bg));
}
.card {
  background: var(--paper);
  border: 1.5px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.login-card {
  width: 100%;
  max-width: 360px;
  padding: 34px 30px;
  text-align: center;
}
.lock-logo { color: var(--ink); margin-bottom: 16px; }
.lock-logo svg { width: 52px; height: 34px; }
.login-card h1 {
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.login-card p { font-size: 12px; color: var(--muted); margin-top: 8px; line-height: 1.6; }
.login-card form { margin-top: 24px; display: flex; flex-direction: column; gap: 12px; }
.login-card input {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  background: #151515;
  border: 1.5px solid var(--rule);
  border-radius: 8px;
  padding: 13px 14px;
  outline: none;
  text-align: center;
}
.login-card input:focus { background: #1a1a1a; border-color: var(--line-strong); }
.err {
  font-size: 11px;
  color: var(--danger);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  min-height: 14px;
}
.back-link {
  display: inline-block;
  margin-top: 18px;
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
}
.back-link:hover { color: var(--ink); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  border: 1.5px solid var(--rule);
  border-radius: 8px;
  padding: 11px 16px;
  cursor: pointer;
  transition: all 0.16s ease;
  white-space: nowrap;
  line-height: 1;
  text-decoration: none;
}
.btn:hover { background: var(--ink); color: #0a0a0a; border-color: var(--ink); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--ink); border-color: var(--ink); color: #0a0a0a; }
.btn.primary:hover { background: transparent; color: var(--ink); }
.btn.ghost { border-color: var(--line); color: var(--muted); }
.btn.ghost:hover { background: var(--ink); color: #0a0a0a; border-color: var(--ink); }
.btn.danger { border-color: #3a2a2a; color: var(--danger); }
.btn.danger:hover { background: var(--danger); color: #0a0a0a; border-color: var(--danger); }

/* ---------- Layout ---------- */
#app { max-width: 1200px; margin: 0 auto; padding: 28px 24px 72px; display: none; }
body.unlocked #app { display: block; }
header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.brand h1 { font-size: 20px; font-weight: 900; letter-spacing: -0.01em; text-transform: uppercase; }
.brand h1 span { color: var(--accent); }
.brand p {
  font-size: 11px;
  color: var(--muted);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-weight: 600;
}
.head-actions { margin-left: auto; display: flex; gap: 10px; }

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}
.stat {
  background: var(--paper);
  border: 1.5px solid var(--rule);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.stat-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
  font-weight: 700;
}
.stat-value {
  font-size: 30px;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-top: 8px;
  color: var(--ink);
}

/* ---------- Charts ---------- */
.charts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.chart-card { padding: 20px 22px; }
.canvas-wrap { position: relative; height: 260px; margin-top: 12px; }

/* ---------- Cards ---------- */
main > .card, .grid .card { padding: 20px 22px; margin-bottom: 20px; }
.grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 16px; align-items: start; }
.card h2 {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
}
.card h2 .sub { color: var(--muted); font-weight: 600; letter-spacing: 0.04em; }
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.card-actions { display: flex; gap: 8px; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th {
  text-align: left;
  padding: 10px 12px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  border-bottom: 1.5px solid var(--rule);
  white-space: nowrap;
}
td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  color: var(--ink-soft);
}
tbody tr:hover { background: #141414; }
.mono { font-family: var(--font-mono); font-size: 11px; color: var(--muted); }
.truncate { max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row-btn {
  font-family: inherit;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--danger);
  background: transparent;
  border: 1px solid #3a2a2a;
  border-radius: 6px;
  padding: 6px 9px;
  cursor: pointer;
}
.row-btn:hover { background: var(--danger); color: #0a0a0a; }
.empty { padding: 28px; text-align: center; color: var(--faint); }

/* ---------- PIN forms ---------- */
.pin-form { display: flex; flex-direction: column; gap: 10px; }
.pin-form label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-weight: 700;
  margin-top: 4px;
}
.pin-form input {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  background: #151515;
  border: 1.5px solid var(--rule);
  border-radius: 8px;
  padding: 12px 14px;
  outline: none;
}
.pin-form input:focus { background: #1a1a1a; border-color: var(--line-strong); }
.pin-form .btn { justify-content: center; }
hr { border: none; border-top: 1.5px solid var(--rule); margin: 22px 0; }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(90px);
  background: var(--ink);
  color: #0a0a0a;
  padding: 14px 20px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow: var(--shadow);
  transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
  z-index: 100;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ---------- Mobile ---------- */
@media (max-width: 900px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .charts, .grid { grid-template-columns: 1fr; }
}