:root {
  --primary: #0b4a8b;
  --accent: #0a7d5a;
  --ink: #1a2230;
  --muted: #5a6472;
  --line: #e2e6ec;
  --bg: #f4f6f9;
  --card: #ffffff;
  --danger: #b3261e;
  --warn: #8a6d00;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(16,24,40,.06), 0 1px 2px rgba(16,24,40,.04);
  --shadow-lg: 0 12px 32px rgba(16,24,40,.12);
  --maxw: 960px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.container-wide { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 20;
}
.site-header .bar { display: flex; align-items: center; gap: 16px; height: 66px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand .logo {
  width: 40px; height: 40px; border-radius: 9px; flex: none;
  background: var(--primary); color:#fff; display:grid; place-items:center; font-weight:800;
  overflow:hidden;
}
.brand .logo img { width:100%; height:100%; object-fit: contain; background:#fff; }
.brand small { display:block; font-weight: 500; color: var(--muted); font-size: 12.5px; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.nav a { color: var(--muted); padding: 8px 12px; border-radius: 8px; font-weight: 600; font-size: 14.5px; }
.nav a:hover { background: var(--bg); text-decoration: none; color: var(--ink); }
.nav .lang { border: 1px solid var(--line); }

/* Hero */
.hero { background: linear-gradient(180deg, color-mix(in srgb, var(--primary) 8%, #fff), var(--bg)); border-bottom: 1px solid var(--line); }
.hero .container { padding-top: 42px; padding-bottom: 42px; }
.hero h1 { font-size: 30px; line-height: 1.25; margin: 0 0 10px; }
.hero p.lead { font-size: 17px; color: var(--muted); margin: 0; max-width: 70ch; }

/* Layout blocks */
main { padding: 34px 0 60px; }
.grid { display: grid; grid-template-columns: 1fr; gap: 22px; }
@media (min-width: 860px){ .grid.cols-2 { grid-template-columns: 1.4fr .9fr; } }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 24px;
}
.card h2 { font-size: 18px; margin: 0 0 12px; }
.card h3 { font-size: 15.5px; margin: 18px 0 6px; }
.card + .card { margin-top: 22px; }
.prose p { margin: 0 0 12px; }
.prose p:last-child { margin-bottom: 0; }

.section-title { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 700; margin: 0 0 10px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content:center; gap: 8px;
  padding: 12px 20px; border-radius: 10px; border: 1px solid transparent;
  font-weight: 700; font-size: 15px; cursor: pointer; transition: .15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { filter: brightness(.94); text-decoration: none; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { filter: brightness(.94); text-decoration:none; }
.btn-ghost { background: #fff; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { background: var(--bg); text-decoration:none; }
.btn-block { width: 100%; }
.btn-lg { padding: 15px 26px; font-size: 16px; }

/* Contact list */
.contact dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0; }
.contact dt { color: var(--muted); font-weight: 600; }
.contact dd { margin: 0; }

/* Info list of channels */
.channels { list-style: none; margin: 0; padding: 0; }
.channels li { display:flex; gap:12px; padding: 12px 0; border-top: 1px solid var(--line); }
.channels li:first-child { border-top: 0; }
.channels .ic { width: 34px; height: 34px; flex:none; border-radius: 8px; background: color-mix(in srgb, var(--primary) 12%, #fff); color: var(--primary); display:grid; place-items:center; font-weight:800; }

/* Forms */
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 650; margin-bottom: 6px; font-size: 14.5px; }
.field .hint { color: var(--muted); font-size: 13.5px; margin-top: 4px; }
.input, .textarea, select.input {
  width: 100%; padding: 11px 13px; border: 1px solid #cfd6e0; border-radius: 9px;
  font: inherit; color: var(--ink); background: #fff;
}
.input:focus, .textarea:focus, select.input:focus { outline: 3px solid color-mix(in srgb, var(--primary) 30%, #fff); border-color: var(--primary); }
.textarea { min-height: 150px; resize: vertical; }
.error-text { color: var(--danger); font-size: 13.5px; margin-top: 5px; }
.checkbox { display:flex; gap:10px; align-items:flex-start; }
.checkbox input { margin-top: 4px; }

/* Mode toggle */
.modes { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
.mode {
  border: 1.5px solid var(--line); border-radius: 11px; padding: 14px; cursor: pointer; background:#fff;
}
.mode input { position: absolute; opacity: 0; }
.mode.selected { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, #fff); }
.mode strong { display:block; }
.mode span { color: var(--muted); font-size: 13px; }

/* Receipt */
.receipt-code {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 26px; letter-spacing: 3px; font-weight: 700; text-align:center;
  background: #0e1726; color: #fff; padding: 20px; border-radius: 12px; word-break: break-all;
}
.alert { border-radius: 10px; padding: 13px 16px; font-size: 14.5px; margin-bottom: 18px; }
.alert-warn { background: #fff7e0; border: 1px solid #f0dfa0; color: #6b5400; }
.alert-danger { background: #fdeceb; border: 1px solid #f3c6c2; color: var(--danger); }
.alert-ok { background: #e8f6ef; border: 1px solid #b7e3cd; color: #0a6b48; }
.alert-info { background: #eaf1fb; border: 1px solid #c4d7f2; color: #244a7a; }

/* Tor box */
.tor {
  border: 1px dashed color-mix(in srgb, var(--primary) 40%, #fff);
  background: color-mix(in srgb, var(--primary) 5%, #fff);
  border-radius: 12px; padding: 20px; margin-top: 22px;
}
.tor code { display:block; background:#0e1726; color:#7ee2b8; padding:12px 14px; border-radius:8px; margin:10px 0; word-break: break-all; font-size: 13.5px; }

/* Chat / messages */
.msg-list { display: flex; flex-direction: column; gap: 12px; margin: 4px 0 18px; }
.msg { max-width: 78%; padding: 11px 14px; border-radius: 12px; font-size: 14.5px; }
.msg .meta { font-size: 12px; color: var(--muted); margin-bottom: 3px; }
.msg.them { background: #eef2f7; border: 1px solid var(--line); align-self: flex-start; border-bottom-left-radius: 4px; }
.msg.you { background: color-mix(in srgb, var(--primary) 12%, #fff); border: 1px solid color-mix(in srgb, var(--primary) 25%, #fff); align-self: flex-end; border-bottom-right-radius: 4px; }

/* Badges */
.badge { display:inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 700; }
.badge-received { background:#eaf1fb; color:#244a7a; }
.badge-acknowledged { background:#e8f0ff; color:#1f4bb8; }
.badge-in_progress { background:#fff2da; color:#8a6d00; }
.badge-closed { background:#e8f6ef; color:#0a6b48; }
.badge-rejected { background:#f2e9e9; color:#7a4a4a; }

/* Tables */
.table { width: 100%; border-collapse: collapse; background:#fff; }
.table th, .table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); font-size: 14.5px; }
.table th { color: var(--muted); font-size: 12.5px; text-transform: uppercase; letter-spacing: .04em; }
.table tr:hover td { background: var(--bg); }
.table-wrap { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }

/* Stat cards */
.stats { display:grid; grid-template-columns: repeat(2,1fr); gap: 12px; margin-bottom: 22px; }
@media(min-width:760px){ .stats { grid-template-columns: repeat(5,1fr);} }
.stat { background:#fff; border:1px solid var(--line); border-radius: 10px; padding: 14px; box-shadow: var(--shadow); }
.stat .n { font-size: 24px; font-weight: 800; }
.stat .l { color: var(--muted); font-size: 12.5px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: var(--card); padding: 26px 0; color: var(--muted); font-size: 13.5px; }
.site-footer .container { display:flex; flex-wrap:wrap; gap: 10px; justify-content: space-between; }

/* Admin shell */
.admin-body { background: #eef1f5; }
.admin-top { background: #0e1726; color:#fff; }
.admin-top .bar { display:flex; align-items:center; gap:16px; height:60px; }
.admin-top a { color:#c7d2e2; }
.admin-top .brand { color:#fff; }
.admin-top .brand .logo { background: var(--primary); }
.admin-top .nav a { color:#c7d2e2; }
.admin-top .nav a:hover { background: rgba(255,255,255,.08); color:#fff; }

.helper { color: var(--muted); font-size: 13.5px; }
.row-split { display:flex; gap: 16px; flex-wrap: wrap; align-items: center; justify-content: space-between; }
hr.sep { border:0; border-top:1px solid var(--line); margin: 20px 0; }
.pagination { display:flex; gap:6px; list-style:none; padding:0; margin: 18px 0 0; flex-wrap:wrap; }
.pagination a, .pagination span { padding:7px 12px; border:1px solid var(--line); border-radius:8px; background:#fff; font-size:14px; }