/* Linear-inspired dark theme */
:root {
  --canvas: #010102;
  --surface-1: #0e0f11;
  --surface-2: #16171a;
  --surface-3: #1c1d21;
  --surface-4: #232529;
  --hairline: #23252a;
  --hairline-strong: #2e3035;
  --ink: #f7f8f8;
  --ink-muted: #d0d6e0;
  --ink-subtle: #8a8f98;
  --ink-tertiary: #62666d;
  --primary: #5e6ad2;
  --primary-hover: #828fff;
  --primary-focus: #5e69d1;
  --success: #27a644;
  --danger: #d25e5e;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--canvas);
  color: var(--ink);
  font: 400 16px/1.5 Inter, "SF Pro Display", -apple-system, system-ui, "Segoe UI", Roboto, sans-serif;
  letter-spacing: -0.05px;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  height: 56px; display: flex; align-items: center; gap: 24px;
  padding: 0 24px; background: rgba(1,1,2,.85); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--hairline);
}
.nav .brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; letter-spacing: -0.3px; }
.nav .brand .dot { width: 18px; height: 18px; border-radius: 5px; background: var(--primary); display: inline-block; }
.nav .links { display: flex; gap: 4px; flex: 1; }
.nav .links a {
  font-size: 14px; color: var(--ink-subtle); padding: 6px 12px; border-radius: 8px;
}
.nav .links a:hover { color: var(--ink); background: var(--surface-2); }
.nav .links a.active { color: var(--ink); background: var(--surface-2); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  font: 500 14px/1.2 inherit; padding: 8px 14px; border-radius: 8px;
  border: 1px solid transparent; color: var(--ink); background: transparent;
  transition: background .12s, border-color .12s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--surface-1); border-color: var(--hairline); }
.btn-secondary:hover { background: var(--surface-2); border-color: var(--hairline-strong); }
.btn-danger { color: var(--danger); }
.btn-danger:hover { background: var(--surface-2); }
.btn:focus-visible { outline: 2px solid rgba(94,105,209,.5); outline-offset: 1px; }

/* Layout */
.wrap { max-width: 1280px; margin: 0 auto; padding: 32px 24px 96px; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.page-head h1 { font-size: 28px; font-weight: 600; letter-spacing: -0.6px; }
.page-head .sub { color: var(--ink-subtle); font-size: 14px; margin-top: 4px; }
.eyebrow { font-size: 13px; font-weight: 500; letter-spacing: .4px; text-transform: uppercase; color: var(--primary-hover); }

/* Summary chips */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 24px; }
.stat {
  background: var(--surface-1); border: 1px solid var(--hairline); border-radius: 12px;
  padding: 16px 20px;
  border-top-color: var(--hairline-strong);
}
.stat .v { font-size: 26px; font-weight: 600; letter-spacing: -0.8px; }
.stat .l { font-size: 12px; color: var(--ink-subtle); margin-top: 2px; }
.stat.accent .v { color: var(--primary-hover); }
.stat.green .v { color: var(--success); }

/* Table panel */
.panel {
  background: var(--surface-1); border: 1px solid var(--hairline);
  border-radius: 16px; overflow: hidden;
  border-top-color: var(--hairline-strong);
}
.table-scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th {
  text-align: left; font-weight: 500; font-size: 12px; color: var(--ink-subtle);
  padding: 10px 12px; border-bottom: 1px solid var(--hairline); white-space: nowrap;
  background: var(--surface-2); position: sticky; top: 0;
}
td { padding: 10px 12px; border-bottom: 1px solid var(--hairline); vertical-align: middle; color: var(--ink-muted); white-space: nowrap; }
td.grow { white-space: normal; min-width: 220px; }
tr:hover td { background: var(--surface-2); }
tr:last-child td { border-bottom: 0; }
.empty { padding: 48px; text-align: center; color: var(--ink-tertiary); font-size: 14px; }

/* Checkbox */
.chk {
  width: 18px; height: 18px; border-radius: 4px; cursor: pointer;
  border: 1px solid var(--hairline-strong); background: var(--surface-2);
  display: inline-flex; align-items: center; justify-content: center;
  transition: background .12s, border-color .12s;
  color: transparent; font-size: 12px; line-height: 1;
}
.chk.on { background: var(--success); border-color: var(--success); color: #fff; }
.chk:hover { border-color: var(--primary); }

.pill {
  display: inline-block; padding: 2px 8px; border-radius: 9999px;
  background: var(--surface-2); color: var(--ink-muted); font-size: 12px;
}
.pill.green { color: var(--success); }

.row-actions { display: flex; gap: 4px; }
.icon-btn {
  background: none; border: 0; cursor: pointer; color: var(--ink-tertiary);
  padding: 4px 6px; border-radius: 6px; font-size: 14px; line-height: 1;
}
.icon-btn:hover { color: var(--ink); background: var(--surface-3); }

/* Modal */
.overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.7); z-index: 100;
  display: none; align-items: flex-start; justify-content: center; padding: 64px 16px;
}
.overlay.open { display: flex; }
.modal {
  background: var(--surface-2); border: 1px solid var(--hairline-strong);
  border-radius: 12px; padding: 24px; width: 100%; max-width: 640px;
}
.modal h2 { font-size: 20px; font-weight: 600; letter-spacing: -0.4px; margin-bottom: 16px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: 12px; color: var(--ink-subtle); margin-bottom: 4px; }
input, textarea, select {
  width: 100%; background: var(--surface-1); border: 1px solid var(--hairline);
  color: var(--ink); font: 400 14px/1.4 inherit; padding: 8px 12px; border-radius: 8px;
}
input:focus, textarea:focus { outline: 2px solid rgba(94,105,209,.5); border-color: var(--primary-focus); }
textarea { resize: vertical; min-height: 70px; }
input[type="date"] { color-scheme: dark; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }

/* Login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.login-card {
  background: var(--surface-1); border: 1px solid var(--hairline);
  border-radius: 12px; padding: 40px; width: 100%; max-width: 380px; text-align: center;
}
.login-card .dot { width: 40px; height: 40px; border-radius: 12px; background: var(--primary); margin: 0 auto 16px; }
.login-card h1 { font-size: 22px; font-weight: 600; letter-spacing: -0.4px; margin-bottom: 4px; }
.login-card p { color: var(--ink-subtle); font-size: 14px; margin-bottom: 24px; }
.login-card form { text-align: left; }
.err { color: var(--danger); font-size: 13px; margin-top: 10px; }

/* Dashboard cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.card {
  background: var(--surface-1); border: 1px solid var(--hairline); border-radius: 12px;
  padding: 24px; display: block; transition: background .12s, border-color .12s;
  border-top-color: var(--hairline-strong);
}
.card:hover { background: var(--surface-2); border-color: var(--hairline-strong); }
.card h3 { font-size: 18px; font-weight: 600; letter-spacing: -0.3px; margin-bottom: 4px; }
.card .meta { color: var(--ink-subtle); font-size: 13px; margin-bottom: 16px; }
.card .nums { display: flex; gap: 20px; }
.card .nums div span { display: block; }
.card .nums .n { font-size: 22px; font-weight: 600; letter-spacing: -0.5px; }
.card .nums .t { font-size: 11px; color: var(--ink-tertiary); }

/* Toggle switch */
.switch {
  display: inline-flex; align-items: center; width: 34px; height: 20px;
  border-radius: 9999px; background: var(--surface-3); border: 1px solid var(--hairline-strong);
  cursor: pointer; padding: 2px; transition: background .15s;
}
.switch .knob {
  width: 14px; height: 14px; border-radius: 50%; background: var(--ink-tertiary);
  transition: transform .15s, background .15s;
}
.switch.on { background: var(--success); border-color: var(--success); }
.switch.on .knob { transform: translateX(14px); background: #fff; }
.disabled-row td { opacity: .45; }
.disabled-row td:nth-child(2) { opacity: 1; }

.masked { font-family: ui-monospace, "JetBrains Mono", Menlo, monospace; font-size: 13px; letter-spacing: 1px; }
.revealed { font-family: ui-monospace, "JetBrains Mono", Menlo, monospace; font-size: 13px; color: var(--success); }

@media (max-width: 768px) {
  .nav .links { overflow-x: auto; }
  .form-grid { grid-template-columns: 1fr; }
  .page-head h1 { font-size: 22px; }
}