:root {
  --navy: #0B3D91;
  --navy-dark: #082B69;
  --gold: #FFD23F;
  --ink: #1A1F2B;
  --muted: #6B7280;
  --bg: #F4F6FB;
  --panel: #FFFFFF;
  --border: #E2E6F0;
  --green: #1E7E34;
  --green-bg: #EAF7EE;
  --amber: #92660A;
  --amber-bg: #FFF6E0;
  --red: #C0392B;
  --red-bg: #FDECEC;
  --radius: 10px;
  --shadow: 0 2px 10px rgba(11, 61, 145, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

a { color: var(--navy); }

.topbar {
  background: var(--navy);
  border-bottom: 3px solid var(--gold);
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.brand { display: flex; align-items: center; gap: 8px; }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px; height: 26px;
  background: var(--gold);
  color: var(--navy-dark);
  font-weight: 800;
  border-radius: 6px;
  font-size: 15px;
}
.brand-name { color: white; font-weight: 700; letter-spacing: 0.04em; font-size: 16px; }
.topbar-sub { color: #CFE0FF; font-size: 13px; }
.logout-link { margin-left: auto; color: #CFE0FF; font-size: 13px; text-decoration: none; }
.logout-link:hover { text-decoration: underline; }

.container {
  max-width: 1200px;
  margin: 28px auto;
  padding: 0 24px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
h1 { font-size: 22px; margin: 0; }
h2 { font-size: 16px; margin: 0 0 14px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary { background: var(--navy); color: white; }
.btn-primary:hover { opacity: 0.92; }
.btn-accent { background: var(--gold); color: var(--navy-dark); }
.btn-accent:hover { opacity: 0.92; }
.btn-danger { background: var(--red-bg); color: var(--red); }
.btn-danger:hover { opacity: 0.85; }
.btn-secondary { background: white; color: var(--ink); border: 1px solid var(--border); }
.btn-secondary:hover { background: #F5F7FB; }
.btn-sm { padding: 6px 12px; font-size: 12px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; font-size: 13px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; }
tr:hover td { background: #FAFBFE; }
td a { text-decoration: none; font-weight: 600; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge-active { background: var(--green-bg); color: var(--green); }
.badge-suspended { background: var(--red-bg); color: var(--red); }
.badge-warning { background: var(--amber-bg); color: var(--amber); }
.badge-working { background: var(--green-bg); color: var(--green); }
.badge-scan { background: var(--amber-bg); color: var(--amber); }
.badge-stopped { background: #EEF0F4; color: var(--muted); }
.badge-failed { background: var(--red-bg); color: var(--red); }
.badge-unknown { background: #EEF0F4; color: var(--muted); }

.text-input, select.text-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  color: var(--ink);
  background: white;
}
.text-input:focus { outline: none; border-color: var(--navy); box-shadow: 0 0 0 3px rgba(11,61,145,0.12); }
.field-label { display: block; font-size: 13px; font-weight: 600; margin: 16px 0 6px; }
.field-label:first-of-type { margin-top: 0; }
.field-hint { font-size: 12px; color: var(--muted); margin-top: 4px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

.status-msg { margin-top: 14px; padding: 10px 14px; border-radius: 8px; font-size: 13px; }
.status-msg.error { background: var(--red-bg); color: var(--red); }
.status-msg.success { background: var(--green-bg); color: var(--green); }

.login-layout { max-width: 400px; margin: 80px auto; padding: 0 24px; }
.login-form { display: flex; flex-direction: column; gap: 12px; margin-top: 18px; }
.lede { color: var(--muted); font-size: 14px; line-height: 1.5; margin: 0 0 18px; }

.kv-grid { display: grid; grid-template-columns: 160px 1fr; gap: 10px 16px; font-size: 13px; }
.kv-grid dt { color: var(--muted); font-weight: 600; }
.kv-grid dd { margin: 0; }

.key-reveal {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px;
  background: #F5F7FB;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  word-break: break-all;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.copy-btn {
  background: var(--navy);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 11px;
  cursor: pointer;
  flex-shrink: 0;
}

.qr-box {
  text-align: center;
  padding: 20px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: #FAFBFE;
}
.qr-box img { max-width: 220px; border-radius: 8px; }

.actions-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }

.waha-warning {
  background: var(--red-bg);
  color: var(--red);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 18px;
}

.empty-state { text-align: center; padding: 40px 20px; color: var(--muted); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .container { margin: 16px auto; padding: 0 14px; }
  .panel { padding: 16px; }
  .topbar-inner { padding: 12px 14px; flex-wrap: wrap; gap: 8px; }
  .topbar-sub { display: none; }

  /* Side-by-side detail panels collapse to single column */
  div[style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }

  .page-header { flex-direction: column; align-items: flex-start; gap: 10px; }
  .page-header > div { width: 100%; display: flex; flex-wrap: wrap; gap: 8px; }

  .kv-grid { grid-template-columns: 1fr; gap: 4px 0; }
  .kv-grid dt { margin-top: 10px; }

  .form-row { grid-template-columns: 1fr; }

  .key-reveal { flex-direction: column; align-items: stretch; }
  .key-reveal span { word-break: break-all; }
}

/* Customer list table: switch to horizontal scroll on narrow screens
   instead of overflowing the page or squashing columns unreadably. */
@media (max-width: 700px) {
  .table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .table-scroll table {
    min-width: 560px;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 19px; }
  .btn { padding: 8px 12px; font-size: 12.5px; }
  .login-layout { margin: 40px auto; padding: 0 16px; }
  .qr-box img { max-width: 180px; }
}

/* Pending payments review cards: stack screenshot above details on mobile */
@media (max-width: 700px) {
  .pending-card { flex-direction: column !important; }
  .pending-card img { max-width: 100% !important; }
}