:root {
  --bg: #f4f6fa;
  --surface: #ffffff;
  --surface-2: #f0f3f8;
  --text: #15202f;
  --muted: #5d6b80;
  --border: #dde3ec;
  --primary: #2453d6;
  --primary-ink: #ffffff;
  --whatsapp: #128c4a;
  --call: #2453d6;
  --emergency: #c62f2f;
  --success-bg: #e5f6ec; --success: #146c3a;
  --error-bg: #fde8e8;   --error: #a52222;
  --info-bg: #e8effd;    --info: #1d44ad;
  --warn-bg: #fff4dc;    --warn: #8a5a00;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 4px 16px rgba(16, 24, 40, .06);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f141c; --surface: #18202b; --surface-2: #1f2935; --text: #e8edf4; --muted: #9aa8bb;
    --border: #2b3746; --primary: #5b86ff; --call: #5b86ff; --whatsapp: #22a862; --emergency: #e5534b;
    --success-bg: #12301f; --success: #6fd69a; --error-bg: #3a1a1a; --error: #ff9a9a;
    --info-bg: #182a4d; --info: #a9c1ff; --warn-bg: #3a2e12; --warn: #f0c46a;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .25);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.55 var(--font); min-height: 100vh; display: flex; flex-direction: column; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .5rem; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.2rem; }
p { margin: 0 0 1rem; }
code, .mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; }
[hidden] { display: none !important; }

/* Layout */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding: .75rem 1.25rem; background: var(--surface); border-bottom: 1px solid var(--border); }
.brand { display: inline-flex; align-items: center; gap: .5rem; font-weight: 700; font-size: 1.05rem; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand svg { width: 26px; height: 26px; color: var(--primary); }
.nav { display: flex; align-items: center; gap: .25rem; flex-wrap: wrap; }
.nav a, .nav button { padding: .4rem .7rem; border-radius: 8px; color: var(--muted); font-weight: 500; background: none; border: 0; font: inherit; cursor: pointer; }
.nav a:hover, .nav button:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.nav a.active { color: var(--primary); background: var(--info-bg); }
.nav form { margin: 0; }
.container { width: 100%; max-width: 1080px; margin: 0 auto; padding: 1.5rem 1rem 3rem; flex: 1; }
.container.narrow { max-width: 480px; }
.footer { text-align: center; color: var(--muted); font-size: .85rem; padding: 1.25rem 1rem 2rem; }

.page-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.25rem; }
.page-head p { color: var(--muted); margin: 0; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.25rem; }
.card + .card { margin-top: 1rem; }
.card h2 { display: flex; align-items: center; gap: .5rem; }
.step { display: inline-grid; place-items: center; width: 1.6rem; height: 1.6rem; border-radius: 50%; background: var(--primary); color: var(--primary-ink); font-size: .85rem; font-weight: 700; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.register-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 1rem; align-items: start; }
@media (max-width: 820px) { .register-grid, .grid-2 { grid-template-columns: 1fr; } }

/* Forms */
.field { margin-bottom: 1rem; }
label { display: block; font-weight: 600; margin-bottom: .3rem; font-size: .92rem; }
.hint { color: var(--muted); font-size: .82rem; margin-top: .25rem; }
.field-error { color: var(--error); font-size: .82rem; margin-top: .25rem; }
input[type=text], input[type=email], input[type=tel], input[type=password], input[type=number], textarea, select {
  width: 100%; padding: .65rem .8rem; border: 1px solid var(--border); border-radius: 10px; background: var(--surface);
  color: var(--text); font: inherit; transition: border-color .15s, box-shadow .15s; }
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 22%, transparent); }
.has-error input { border-color: var(--error); }
.checkbox { display: flex; align-items: center; gap: .45rem; font-weight: 500; margin-top: .4rem; font-size: .88rem; }
.otp-input { font-size: 1.6rem !important; letter-spacing: .5em; text-align: center; font-family: ui-monospace, Consolas, monospace; }
.input-row { display: flex; gap: .5rem; }
.input-row input { flex: 1; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .45rem; padding: .65rem 1.1rem; border-radius: 10px;
  border: 1px solid transparent; background: var(--primary); color: var(--primary-ink); font: inherit; font-weight: 600; cursor: pointer;
  transition: filter .15s, transform .05s; text-decoration: none; white-space: nowrap; }
.btn:hover { filter: brightness(1.07); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .6; cursor: wait; }
.btn-block { width: 100%; }
.btn-ghost { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn-danger { background: var(--emergency); }
.btn-sm { padding: .35rem .7rem; font-size: .85rem; border-radius: 8px; }
.btn-link { background: none; border: 0; color: var(--primary); padding: 0; font: inherit; cursor: pointer; }
.inline { display: inline; margin: 0; }

/* Flash / alerts */
.flashes { margin-bottom: 1rem; display: grid; gap: .5rem; }
.alert { padding: .7rem .9rem; border-radius: 10px; font-size: .92rem; }
.alert-success { background: var(--success-bg); color: var(--success); }
.alert-error { background: var(--error-bg); color: var(--error); }
.alert-info, .alert-message { background: var(--info-bg); color: var(--info); }
.alert-warn { background: var(--warn-bg); color: var(--warn); }

/* Tables & badges */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: .65rem .6rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }
tr:last-child td { border-bottom: 0; }
.actions { display: flex; gap: .4rem; flex-wrap: wrap; }
.badge { display: inline-block; padding: .15rem .55rem; border-radius: 999px; font-size: .75rem; font-weight: 600; text-transform: capitalize; }
.badge-active, .badge-sent, .badge-verified { background: var(--success-bg); color: var(--success); }
.badge-pending, .badge-queued { background: var(--warn-bg); color: var(--warn); }
.badge-unassigned { background: var(--surface-2); color: var(--muted); }
.badge-disabled, .badge-failed { background: var(--error-bg); color: var(--error); }
.badge-role-admin { background: var(--error-bg); color: var(--error); }
.badge-role-super_agent { background: var(--info-bg); color: var(--info); }
.badge-role-agent { background: var(--surface-2); color: var(--muted); }
.empty { text-align: center; color: var(--muted); padding: 2rem 1rem; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.1rem; }
.stat .num { font-size: 1.7rem; font-weight: 700; }
.stat .lbl { color: var(--muted); font-size: .85rem; }

/* QR scanner (agent) */
.scanner-box { border: 2px dashed var(--border); border-radius: var(--radius); padding: 1rem; text-align: center; background: var(--surface-2); }
#reader { width: 100%; max-width: 360px; margin: .75rem auto 0; border-radius: 10px; overflow: hidden; }
#reader video { border-radius: 10px; }
.tag-status { margin-top: .5rem; font-size: .88rem; }
.tag-status.ok { color: var(--success); }
.tag-status.bad { color: var(--error); }
.or { display: flex; align-items: center; gap: .75rem; color: var(--muted); font-size: .8rem; margin: 1rem 0; }
.or::before, .or::after { content: ""; flex: 1; height: 1px; background: var(--border); }

/* Public scan page */
.scan-page { max-width: 460px; }
.plate-card { text-align: center; padding: 1.5rem 1.25rem; }
.plate-card .label { color: var(--muted); font-size: .85rem; margin-bottom: .6rem; }
.plate { display: inline-block; padding: .45rem 1.1rem; border: 3px solid #1a1a1a; border-radius: 8px; background: #fff; color: #111;
  font: 700 1.6rem/1.2 ui-monospace, "Cascadia Mono", Consolas, monospace; letter-spacing: .08em; box-shadow: inset 0 0 0 2px #fff, inset 0 0 0 3px #999; }
.verified-chip { display: inline-flex; align-items: center; gap: .35rem; margin-top: .9rem; padding: .25rem .7rem; border-radius: 999px; background: var(--success-bg); color: var(--success); font-size: .8rem; font-weight: 600; }
.action-list { display: grid; gap: .75rem; margin: 1rem 0; }
.action-btn { display: flex; align-items: center; gap: 1rem; width: 100%; padding: 1rem 1.1rem; border: 0; border-radius: var(--radius);
  color: #fff; font: inherit; text-align: left; cursor: pointer; box-shadow: var(--shadow); transition: filter .15s, transform .05s; }
.action-btn:hover { filter: brightness(1.08); }
.action-btn:active { transform: translateY(1px); }
.action-btn .icon { flex: none; display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px; background: rgba(255, 255, 255, .18); }
.action-btn .icon svg { width: 26px; height: 26px; }
.action-btn strong { display: block; font-size: 1.05rem; }
.action-btn span.sub { display: block; font-size: .82rem; opacity: .9; }
.action-whatsapp { background: var(--whatsapp); }
.action-call { background: var(--call); }
.action-emergency { background: var(--emergency); }
.panel h2 { font-size: 1.1rem; }
.panel .back { margin-top: .75rem; text-align: center; }
.chips { display: flex; flex-wrap: wrap; gap: .45rem; margin-bottom: .9rem; }
.chip { padding: .45rem .75rem; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font: inherit; font-size: .85rem; cursor: pointer; }
.chip[aria-pressed=true] { background: var(--whatsapp); border-color: var(--whatsapp); color: #fff; }
.privacy-note { display: flex; gap: .6rem; align-items: flex-start; font-size: .83rem; color: var(--muted); background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: .8rem .9rem; }
.privacy-note svg { flex: none; width: 20px; height: 20px; color: var(--success); margin-top: .1rem; }
.result-icon { width: 56px; height: 56px; margin: 0 auto .75rem; display: grid; place-items: center; border-radius: 50%; background: var(--success-bg); color: var(--success); }
.result-icon.fail { background: var(--error-bg); color: var(--error); }
.center { text-align: center; }
.card.center h2, .card .center h2 { justify-content: center; }
.muted { color: var(--muted); }

/* Landing */
.hero { text-align: center; padding: 2rem 0 1rem; }
.hero h1 { font-size: 2rem; }
.hero p { color: var(--muted); max-width: 560px; margin: 0 auto 1.5rem; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; margin-top: 1.5rem; }

/* Printable stickers */
.sheet { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1rem; }
.sticker { background: #fff; color: #111; border: 1px dashed #bbb; border-radius: 12px; padding: .9rem; text-align: center; break-inside: avoid; }
.sticker .title { font-weight: 800; font-size: .95rem; }
.sticker .sub { font-size: .72rem; color: #444; }
.sticker svg { width: 100%; height: auto; max-width: 180px; display: block; margin: .4rem auto; }
.sticker .code { font: 700 .85rem ui-monospace, Consolas, monospace; letter-spacing: .1em; }
@media print {
  .topbar, .footer, .no-print, .flashes { display: none !important; }
  body { background: #fff; }
  .container { max-width: none; padding: 0; }
  .sheet { grid-template-columns: repeat(3, 1fr); gap: 6mm; }
}