:root {
  --bg: #0f1115;
  --panel: #161a22;
  --panel-2: #1d2230;
  --border: #2a3142;
  --text: #e6e9ef;
  --muted: #8b94a7;
  --accent: #4f8cff;
  --accent-2: #2dd4bf;
  --danger: #ef4444;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  position: sticky; top: 0; z-index: 5;
}
.topbar h1 {
  font-size: 18px; margin: 0; letter-spacing: 0.3px; font-weight: 600;
}
.topbar .right { display: flex; gap: 10px; align-items: center; }

.btn {
  background: var(--accent);
  color: white; border: 0; border-radius: 6px;
  padding: 9px 14px; font-size: 14px; cursor: pointer;
  font-weight: 500;
}
.btn:hover { filter: brightness(1.08); }
.btn.secondary { background: var(--panel-2); border: 1px solid var(--border); }
.btn.danger { background: transparent; border: 1px solid var(--border); color: var(--muted); }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 22px;
}

/* Login */
.login-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 20px;
}
.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  width: 100%;
  max-width: 360px;
  text-align: center;
}
.login-card h1 { margin: 0 0 6px; font-size: 22px; }
.login-card p { color: var(--muted); margin: 0 0 18px; font-size: 14px; }
.login-card input[type="password"] {
  width: 100%;
  padding: 11px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 15px;
  margin-bottom: 12px;
}
.login-card .btn { width: 100%; padding: 11px 14px; font-size: 15px; }
.login-card .err { color: var(--danger); font-size: 13px; min-height: 18px; margin-bottom: 8px; }

/* User accordion */
.user {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 14px;
  overflow: hidden;
}
.user-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; cursor: pointer;
  user-select: none;
}
.user-head:hover { background: var(--panel-2); }
.user-head .name { font-weight: 600; font-size: 16px; }
.user-head .meta {
  color: var(--muted);
  font-size: 13px;
  display: flex; align-items: center; gap: 12px;
}
.chev { transition: transform 0.18s ease; color: var(--muted); }
.user.open .chev { transform: rotate(90deg); }
.user-body { display: none; border-top: 1px solid var(--border); }
.user.open .user-body { display: block; }

/* Desktop table */
.tbl-wrap { overflow-x: auto; }
table.weeks {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
table.weeks th, table.weeks td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
table.weeks th {
  background: var(--panel-2);
  color: var(--muted);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
table.weeks tr:last-child td { border-bottom: 0; }
table.weeks td.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Mobile cards */
.cards { display: none; padding: 12px; }
.card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 10px;
}
.card .card-head {
  display: flex; justify-content: space-between; align-items: baseline;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
  margin-bottom: 8px;
}
.card .week { font-weight: 600; font-size: 15px; }
.card .dollars { color: var(--accent-2); font-weight: 600; font-variant-numeric: tabular-nums; }
.card dl { margin: 0; display: grid; grid-template-columns: 110px 1fr; row-gap: 4px; column-gap: 8px; font-size: 13.5px; }
.card dt { color: var(--muted); }
.card dd { margin: 0; }

@media (max-width: 720px) {
  .container { padding: 14px; }
  .topbar h1 { font-size: 16px; }
  .topbar { padding: 12px 14px; }
  .tbl-wrap { display: none; }
  .cards { display: block; }
  .user-head { padding: 12px 14px; }
}

/* Admin */
.admin-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px;
  max-width: 560px;
  margin: 30px auto;
}
.admin-card h2 { margin-top: 0; }
.admin-card input[type=file] { display: block; margin: 14px 0; color: var(--text); }
.admin-result {
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  font-size: 14px;
  white-space: pre-wrap;
  display: none;
}
.admin-result.ok { border-color: #1f6f4a; }
.admin-result.err { border-color: #7a2a2a; }

.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
}