/* ---------------------------------------------------------------------
   Design tokens
   Palette: ink (#12141A), paper (#FAFAF8), rule (#E4E1D8),
            ledger green (#1F7A4D), ledger amber (#C08A2E), signal red (#B3432C)
   Type: system sans for UI, ui-monospace for every figure/code/reference
   Signature: everything financial is set in monospace with tabular numbers,
   like entries in a physical ledger book. Rank markers are right-aligned
   monospace, top three get a thin colored rule instead of badges.
------------------------------------------------------------------------ */
:root {
  --ink: #12141a;
  --ink-soft: #454a54;
  --paper: #fafaf8;
  --paper-raised: #ffffff;
  --rule: #e4e1d8;
  --green: #1f7a4d;
  --green-soft: #e7f2ec;
  --amber: #c08a2e;
  --amber-soft: #faf1df;
  --red: #b3432c;
  --red-soft: #fbeae6;
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.5;
}

a { color: inherit; }

.mono, .num, code {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------------- Shell layout (app pages) ---------------- */
.shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--ink);
  color: #f4f3ef;
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar .brand {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: #fff;
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar .brand .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); display: inline-block; }

.sidebar nav { display: flex; flex-direction: column; gap: 2px; margin-top: 8px; }
.sidebar a.nav-link {
  color: #c7c9d1;
  text-decoration: none;
  padding: 9px 10px;
  border-radius: 6px;
  font-size: 13.5px;
}
.sidebar a.nav-link:hover { background: rgba(255,255,255,0.06); color: #fff; }
.sidebar a.nav-link.active { background: rgba(31,122,77,0.25); color: #fff; }

.sidebar .sidebar-footer {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 12px;
  color: #9a9ca6;
}
.sidebar .sidebar-footer button {
  background: none; border: 1px solid rgba(255,255,255,0.2); color: #e6e6e6;
  border-radius: 6px; padding: 6px 10px; font-size: 12px; cursor: pointer; margin-top: 8px;
}
.sidebar .sidebar-footer button:hover { border-color: #fff; }

.main { padding: 28px 34px; max-width: 1120px; }

.page-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 22px; flex-wrap: wrap; gap: 10px; }
.page-header h1 { font-size: 20px; margin: 0; }
.page-header p { color: var(--ink-soft); margin: 2px 0 0; font-size: 13.5px; }

/* ---------------- Cards / stat blocks ---------------- */
.grid { display: grid; gap: 14px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid.cols-4, .grid.cols-3 { grid-template-columns: repeat(2, 1fr); } .shell { grid-template-columns: 1fr; } .sidebar { display:none; } }

.card {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 18px 18px;
}

.stat .label { font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-soft); margin-bottom: 6px; }
.stat .value { font-family: var(--font-mono); font-size: 24px; font-weight: 600; }
.stat .sub { font-size: 12px; color: var(--ink-soft); margin-top: 4px; }

.section-title { font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-soft); margin: 26px 0 10px; }

/* ---------------- Tables (ledger style) ---------------- */
table.ledger { width: 100%; border-collapse: collapse; }
table.ledger th {
  text-align: left; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--ink-soft); border-bottom: 1px solid var(--rule); padding: 8px 10px; font-weight: 600;
}
table.ledger td { padding: 10px 10px; border-bottom: 1px solid var(--rule); font-size: 13.5px; }
table.ledger tbody tr:hover { background: #fbfbf9; }
table.ledger td.num, table.ledger th.num { font-family: var(--font-mono); text-align: right; }

/* Leaderboard signature: rank column monospace, top 3 get a left rule accent */
.leaderboard tr td:first-child { font-family: var(--font-mono); text-align: right; width: 40px; color: var(--ink-soft); }
.leaderboard tr.rank-1 { border-left: 3px solid var(--amber); }
.leaderboard tr.rank-2 { border-left: 3px solid #9aa0ab; }
.leaderboard tr.rank-3 { border-left: 3px solid #a56a3c; }
.leaderboard tr.rank-1, .leaderboard tr.rank-2, .leaderboard tr.rank-3 { background: #fffdf8; }

/* ---------------- Badges ---------------- */
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11.5px; font-family: var(--font-mono); font-weight: 600; }
.badge.pending { background: var(--amber-soft); color: var(--amber); }
.badge.approved { background: var(--green-soft); color: var(--green); }
.badge.paid { background: var(--green-soft); color: var(--green); }
.badge.rejected { background: var(--red-soft); color: var(--red); }
.badge.active { background: var(--green-soft); color: var(--green); }
.badge.suspended { background: var(--red-soft); color: var(--red); }

/* ---------------- Buttons / forms ---------------- */
button, .btn {
  font-family: var(--font-ui); font-size: 13.5px; font-weight: 600; cursor: pointer;
  border-radius: 7px; border: 1px solid var(--ink); background: var(--ink); color: #fff;
  padding: 9px 14px; display: inline-flex; align-items: center; gap: 6px;
}
button:hover, .btn:hover { opacity: 0.88; }
button.secondary, .btn.secondary { background: transparent; color: var(--ink); border-color: var(--rule); }
button.danger, .btn.danger { background: var(--red); border-color: var(--red); }
button.small { padding: 5px 10px; font-size: 12px; border-radius: 6px; }
button:disabled { opacity: 0.45; cursor: not-allowed; }

input, select, textarea {
  font-family: var(--font-ui); font-size: 13.5px; padding: 9px 11px; border-radius: 7px;
  border: 1px solid var(--rule); background: #fff; width: 100%;
}
label { font-size: 12.5px; color: var(--ink-soft); display: block; margin-bottom: 5px; margin-top: 12px; }
label:first-child { margin-top: 0; }

.form-row { display: flex; gap: 12px; }
.form-row > div { flex: 1; }

.copy-field { display: flex; gap: 8px; }
.copy-field input { font-family: var(--font-mono); background: #f5f4f0; }

.msg { padding: 10px 12px; border-radius: 8px; font-size: 13px; margin-bottom: 14px; }
.msg.error { background: var(--red-soft); color: var(--red); }
.msg.success { background: var(--green-soft); color: var(--green); }

.empty { color: var(--ink-soft); font-size: 13px; padding: 18px 0; text-align: center; }

/* ---------------- Public storefront ---------------- */
.storefront-header {
  border-bottom: 1px solid var(--rule); padding: 18px 34px; display: flex;
  align-items: center; justify-content: space-between;
}
.storefront-header .brand { font-family: var(--font-mono); font-weight: 700; display: flex; align-items: center; gap: 8px; }
.storefront-header .brand .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); display: inline-block; }
.storefront-wrap { max-width: 960px; margin: 0 auto; padding: 40px 24px 80px; }
.hero { margin-bottom: 34px; }
.hero .eyebrow { font-family: var(--font-mono); font-size: 12px; color: var(--green); letter-spacing: 0.04em; margin-bottom: 8px; }
.hero h1 { font-size: 30px; margin: 0 0 10px; max-width: 640px; }
.hero p { color: var(--ink-soft); max-width: 560px; }
.ref-banner {
  margin-top: 14px; font-size: 13px; padding: 9px 12px; border-radius: 8px;
  background: var(--green-soft); color: var(--green); display: inline-block; font-family: var(--font-mono);
}
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 800px) { .products-grid { grid-template-columns: 1fr; } }
.product-card { border: 1px solid var(--rule); border-radius: 10px; padding: 20px; background: var(--paper-raised); display: flex; flex-direction: column; }
.product-card h3 { margin: 0 0 6px; font-size: 16px; }
.product-card p.desc { color: var(--ink-soft); font-size: 13px; flex: 1; }
.product-card .price { font-family: var(--font-mono); font-size: 22px; font-weight: 700; margin: 12px 0 4px; }
.product-card .rate { font-family: var(--font-mono); font-size: 11.5px; color: var(--green); margin-bottom: 12px; }

.center-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card { width: 380px; background: var(--paper-raised); border: 1px solid var(--rule); border-radius: 12px; padding: 30px; }
.auth-card h1 { font-size: 19px; margin: 0 0 4px; }
.auth-card p.sub { color: var(--ink-soft); font-size: 13px; margin: 0 0 18px; }
.auth-card .switch { margin-top: 16px; font-size: 13px; text-align: center; color: var(--ink-soft); }
.auth-card .switch a { color: var(--green); font-weight: 600; text-decoration: none; }

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(18,20,26,0.5); display: flex; align-items: center; justify-content: center; z-index: 50;
}
.modal { background: #fff; border-radius: 12px; padding: 24px; width: 420px; max-width: 92vw; }
.modal h2 { margin: 0 0 4px; font-size: 17px; }
.modal p.sub { color: var(--ink-soft); font-size: 13px; margin: 0 0 16px; }
.modal .actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 18px; }

.tag-hint { font-size: 12px; color: var(--ink-soft); margin-top: 6px; }