:root {
  --bg: #f4f6f9; --card: #fff; --ink: #1f2933; --muted: #7b8794;
  --line: #e4e7eb; --primary: #2563eb; --primary-d: #1d4ed8;
  --ok: #047857; --ok-bg: #d1fae5; --warn: #b45309; --warn-bg: #fef3c7;
  --danger: #b91c1c; --radius: 8px;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--ink); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); font-size: .9em; }
.center { text-align: center; }

/* Topbar */
.topbar { display: flex; align-items: center; gap: 1.5rem; padding: .75rem 1.5rem;
  background: var(--card); border-bottom: 1px solid var(--line); }
.brand a { font-weight: 700; font-size: 1.2rem; color: var(--ink); }
.topnav { display: flex; gap: 1rem; flex: 1; }
.topnav a { padding: .35rem .6rem; border-radius: 6px; color: var(--ink); }
.topnav a.active { background: var(--primary); color: #fff; }
.account { display: flex; align-items: center; gap: .75rem; }
.account .who { font-size: .9rem; }
.account .who em { color: var(--muted); font-style: normal; }

/* Layout */
.container { max-width: 960px; margin: 1.5rem auto; padding: 0 1.5rem; }
.page-head { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.page-head h1 { margin: 0; font-size: 1.5rem; flex: 1; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.25rem; margin-bottom: 1.25rem; }
.card.narrow { max-width: 480px; margin: 3rem auto; }
.card h3 { margin-top: 0; }

/* Forms */
label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .25rem; }
input, select { width: 100%; padding: .5rem .6rem; border: 1px solid var(--line);
  border-radius: 6px; font-size: .95rem; background: #fff; color: var(--ink); }
.form-row { display: flex; gap: 1rem; align-items: flex-end; flex-wrap: wrap; }
.form-row > label { flex: 1; min-width: 160px; margin-bottom: 0; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; align-items: end; }
.form-grid > button { grid-column: 1 / -1; justify-self: start; }
.form-stack { margin: 0 0 .75rem; }
.form-stack label { margin-bottom: .5rem; }

/* Buttons */
.btn { display: inline-block; padding: .5rem .9rem; border: 1px solid var(--line);
  background: #fff; border-radius: 6px; cursor: pointer; font-size: .9rem; color: var(--ink); }
.btn:hover { text-decoration: none; border-color: var(--muted); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-d); }
.btn-danger { color: var(--danger); border-color: #f0c4c4; }
.btn-danger:hover { background: #fdeaea; }
.btn-sm { padding: .3rem .6rem; font-size: .8rem; }
.btn-block { width: 100%; margin-top: .5rem; }
.btn-link { background: none; border: none; color: var(--primary); cursor: pointer; padding: 0; font-size: .9rem; }

/* Tables */
.table { width: 100%; border-collapse: collapse; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.table th, .table td { text-align: left; padding: .6rem .75rem; border-bottom: 1px solid var(--line); font-size: .9rem; }
.table th { background: #fafbfc; color: var(--muted); font-weight: 600; }
.table tr:last-child td { border-bottom: none; }
.actions details { position: relative; }
.actions summary { list-style: none; }
.popover { position: absolute; right: 0; z-index: 10; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1rem; width: 240px; box-shadow: 0 8px 24px rgba(0,0,0,.12); }

/* Badges */
.badge { display: inline-block; padding: .15rem .5rem; border-radius: 999px; font-size: .75rem; font-weight: 600; }
.badge-ok { background: var(--ok-bg); color: var(--ok); }
.badge-warn { background: var(--warn-bg); color: var(--warn); }

/* Flashes */
.flashes { margin-bottom: 1rem; }
.flash { padding: .6rem .9rem; border-radius: 6px; margin-bottom: .5rem; font-size: .9rem; }
.flash-error { background: #fdeaea; color: var(--danger); }
.flash-success { background: var(--ok-bg); color: var(--ok); }
.flash-info { background: #e0edff; color: var(--primary-d); }

/* Auth */
.auth-card { max-width: 360px; margin: 4rem auto; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 2rem; }
.auth-card h1 { margin: 0 0 .25rem; }
.auth-card label { margin: 1rem 0 .25rem; }

/* Dashboard feature cards */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; }
.feature-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem; }
.feature-card.disabled { opacity: .7; }
.feature-card h3 { margin: 0 0 .4rem; font-size: 1rem; }
.feature-card p { margin: 0 0 .6rem; font-size: .85rem; color: var(--muted); }
.feature-card .soon { font-size: .7rem; text-transform: uppercase; letter-spacing: .04em;
  color: var(--warn); background: var(--warn-bg); padding: .15rem .5rem; border-radius: 999px; }
a.feature-card { color: var(--ink); }
a.feature-card:hover { text-decoration: none; border-color: var(--primary); box-shadow: 0 2px 10px rgba(0,0,0,.06); }

/* Stat row */
.stat-row { display: flex; gap: 1rem; margin-bottom: 1.25rem; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem 1.25rem; flex: 1; }
.stat-n { display: block; font-size: 1.6rem; font-weight: 700; }
.stat-l { color: var(--muted); font-size: .8rem; }

/* Filters / totals */
.filter-bar { display: flex; gap: .75rem; align-items: flex-end; flex-wrap: wrap; }
.filter-bar > label { margin-bottom: 0; }
.filter-bar input, .filter-bar select { min-width: 130px; }
.totals-line { margin: .25rem 0 1rem; color: var(--muted); }

/* Tables: numeric + status */
.table th.num, .table td.num { text-align: right; }
.badge-err { background: #fdeaea; color: var(--danger); }

/* Cards sizing */
.card.narrow-md { max-width: 560px; }
.report-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
@media (max-width: 720px) { .report-cols { grid-template-columns: 1fr; } }

/* Key/value lists */
dl.kv { display: grid; grid-template-columns: 160px 1fr; gap: .4rem .75rem; margin: 0; }
dl.kv dt { color: var(--muted); font-size: .85rem; }
dl.kv dd { margin: 0; }

.btn-row { display: flex; gap: .75rem; margin-top: 1rem; }
label.inline { display: flex; align-items: center; gap: .4rem; }
label.inline input { width: auto; }

/* Payment-method logo tiles */
.field-label { font-size: .85rem; color: var(--muted); margin: 0 0 .4rem; }
.method-tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: .6rem; margin-bottom: 1.1rem; }
.method-tile { position: relative; display: flex; flex-direction: column; align-items: center;
  gap: .45rem; padding: .9rem .5rem; border: 2px solid var(--line); border-radius: var(--radius);
  cursor: pointer; background: #fff; text-align: center; transition: border-color .12s, box-shadow .12s; }
.method-tile:hover { border-color: var(--muted); }
.method-tile input { position: absolute; opacity: 0; width: 0; height: 0; }
.method-tile img { width: 100%; max-width: 96px; height: 48px; object-fit: contain; display: block; }
.method-tile span { font-size: .8rem; font-weight: 600; color: var(--ink); }
.method-tile.selected { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.14); }
.field-group { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field-group > label { margin-bottom: 0; }
.danger-zone { border-color: #f0c4c4; }
.danger-zone h3 { color: var(--danger); }

/* Detail page: action bar + side-by-side panels */
.action-bar { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; margin-bottom: 1rem; }
.action-bar form { margin: 0; }
.block-details { margin-bottom: 1.25rem; }
.block-details > summary { display: inline-block; list-style: none; cursor: pointer; }
.block-details > summary::-webkit-details-marker { display: none; }
.detail-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; align-items: start; }
@media (max-width: 760px) { .detail-cols { grid-template-columns: 1fr; } }

/* Service row actions (services list) */
.row-actions { display: flex; gap: .4rem; align-items: center; }
.row-actions form { margin: 0; }
.row-actions details { position: relative; }

/* Sales item picker */
.item-picker { position: relative; max-width: 480px; }
.svc-results { list-style: none; margin: .25rem 0 0; padding: 0; border: 1px solid var(--line);
  border-radius: 6px; background: #fff; position: absolute; left: 0; right: 0; z-index: 20;
  box-shadow: 0 6px 18px rgba(0,0,0,.1); display: none; max-height: 240px; overflow: auto; }
.svc-results li { padding: .5rem .7rem; cursor: pointer; font-size: .9rem; }
.svc-results li:hover { background: #f1f5fb; }
.add-row { display: flex; align-items: flex-end; gap: .75rem; margin-top: .9rem; }
.add-row .add-name { font-weight: 600; flex: 1; }
.add-row .add-qty { margin-bottom: 0; }
.add-row .add-qty input { width: 5rem; }
@media (max-width: 520px) {
  .method-tiles { grid-template-columns: repeat(2, 1fr); }
  .field-group { grid-template-columns: 1fr; }
}