:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --ink: #0f172a;
  --text: #334155;
  --muted: #64748b;
  --line: #e2e8f0;
  --accent: #111827;
  --green: #15803d;
  --green-bg: #dcfce7;
  --amber: #b45309;
  --amber-bg: #fef3c7;
  --red: #b91c1c;
  --red-bg: #fee2e2;
  --radius: 10px;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.45 Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--ink); }
svg { width: 1em; height: 1em; flex: none; }
h1 { font-size: 22px; color: var(--ink); margin: 0; letter-spacing: -0.01em; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
h2 { font-size: 15px; color: var(--ink); margin: 0 0 12px; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.pad { padding: 18px 20px; }

/* shell */
.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side { background: #fff; border-right: 1px solid var(--line); padding: 20px 14px; display: flex; flex-direction: column; gap: 18px; position: sticky; top: 0; height: 100vh; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 16px; color: var(--ink); text-decoration: none; padding: 0 8px; }
.brand.center { justify-content: center; margin-bottom: 8px; }
.brand-mark { width: 28px; height: 28px; border-radius: 8px; background: var(--accent); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 16px; }
.side nav { display: flex; flex-direction: column; gap: 2px; }
.side nav a { padding: 8px 10px; border-radius: 8px; color: var(--text); text-decoration: none; font-weight: 500; }
.side nav a:hover { background: var(--bg); }
.side nav a.on { background: var(--bg); color: var(--ink); font-weight: 600; }
.side-foot { margin-top: auto; padding: 0 10px; }
.main { padding: 28px 32px 60px; max-width: 1180px; width: 100%; }
.page-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }

/* cards & stats */
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; margin-bottom: 18px; }
.card-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px 0; }
.card-head h2 { margin: 0; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.stat { padding: 16px 18px; margin: 0; display: flex; flex-direction: column; gap: 4px; }
.stat span { color: var(--muted); font-size: 13px; }
.stat strong { font-size: 24px; color: var(--ink); letter-spacing: -0.01em; }
.empty { text-align: center; padding: 40px 20px; }
.empty p { color: var(--muted); margin: 0 0 16px; }

/* tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-weight: 500; color: var(--muted); font-size: 12.5px; padding: 12px 16px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
.row-link { cursor: pointer; }
.row-link:hover td { background: #fafbfc; }
.thumb-cell { width: 56px; }
.thumb { width: 40px; height: 40px; border-radius: 8px; object-fit: cover; border: 1px solid var(--line); display: block; background: var(--bg); }
.thumb.contain { object-fit: contain; }
.actions { text-align: right; }

.pill { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; background: #f1f5f9; color: var(--muted); text-transform: capitalize; }
.pill.paid { background: var(--green-bg); color: var(--green); }
.pill.pending { background: var(--amber-bg); color: var(--amber); }
.pill.failed { background: var(--red-bg); color: var(--red); }

.linkbox { display: flex; align-items: center; gap: 4px; min-width: 260px; }
.linkbox input { flex: 1; font: inherit; font-size: 12.5px; padding: 6px 8px; border: 1px solid var(--line); border-radius: 7px; background: var(--bg); color: var(--text); min-width: 0; }
.icon-btn { width: 30px; height: 30px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 7px; background: #fff; cursor: pointer; color: var(--text); font-size: 15px; }
.icon-btn:hover { background: var(--bg); }
.icon-btn.done { background: var(--green-bg); color: var(--green); border-color: #bbf7d0; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 9px 14px; border-radius: 8px; border: 1px solid var(--line); background: #fff; color: var(--ink); font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn:hover { background: var(--bg); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #1f2937; }
.btn.danger { color: var(--red); border-color: #fecaca; }
.btn.danger:hover { background: var(--red-bg); }
.btn.small { padding: 6px 10px; font-size: 13px; }
.btn.block { width: 100%; justify-content: center; padding: 11px; }
.link { background: none; border: 0; padding: 0; color: var(--muted); font: inherit; cursor: pointer; text-decoration: underline; }

/* forms */
.form-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 18px; align-items: start; }
.form-grid .card { margin: 0; }
label { display: block; font-weight: 500; color: var(--ink); margin-bottom: 14px; font-size: 13.5px; }
label .muted { font-weight: 400; }
input:not([type=checkbox]):not([type=file]):not([type=radio]), select, textarea {
  display: block; width: 100%; margin-top: 6px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px;
  font: inherit; font-weight: 400; color: var(--ink); background: #fff; outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--ink); box-shadow: 0 0 0 1px var(--ink); }
textarea { resize: vertical; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.check { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.image-field { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; margin: -6px 0 16px; }
.image-field img { width: 140px; height: 140px; object-fit: cover; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); }
.image-field img.contain { object-fit: contain; height: 80px; width: 200px; }
.form-actions { display: flex; gap: 8px; margin-top: 6px; }
.danger-zone { margin-top: 18px; }
.connected { display: flex; align-items: center; gap: 8px; background: var(--green-bg); color: var(--green); padding: 10px 12px; border-radius: 8px; margin-bottom: 14px; }

.flash { padding: 11px 14px; border-radius: 8px; margin-bottom: 16px; font-weight: 500; }
.flash.ok { background: var(--green-bg); color: var(--green); }
.flash.error { background: var(--red-bg); color: var(--red); }

.tabs { display: flex; gap: 4px; margin-bottom: 14px; }
.tabs a { padding: 7px 12px; border-radius: 8px; text-decoration: none; color: var(--muted); font-weight: 500; }
.tabs a.on { background: #fff; color: var(--ink); border: 1px solid var(--line); }

.dl { display: grid; grid-template-columns: 130px 1fr; gap: 8px 12px; margin: 0; }
.dl dt { color: var(--muted); }
.dl dd { margin: 0; color: var(--ink); word-break: break-word; }

/* login */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 16px; }
.login { width: 100%; max-width: 380px; padding: 28px; }
.login h1 { justify-content: center; font-size: 18px; margin-bottom: 18px; }

@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: static; height: auto; flex-direction: row; align-items: center; padding: 12px 16px; overflow-x: auto; }
  .side nav { flex-direction: row; }
  .side-foot { margin: 0 0 0 auto; }
  .main { padding: 20px 16px 48px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .form-grid, .two { grid-template-columns: 1fr; }
}