@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root {
  --bg: #F2F4FA;
  --surface: #FFFFFF;
  --surface-alt: #E9EDF9;
  --border: #DCE1F0;

  --ink: #12172E;
  --ink-muted: #5C6584;
  --ink-faint: #98A0BC;

  --accent: #12317E;
  --accent-dark: #0B2159;
  --accent-soft: #E7ECFA;

  --status-critical: #E3342E;
  --status-critical-soft: #FBEAE9;
  --status-warning: #C07A00;
  --status-warning-soft: #FBF0DC;
  --status-ok: #16794D;
  --status-ok-soft: #E5F5EC;

  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

  --radius-box: 10px;
  --radius-control: 8px;
  --radius-panel: 14px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(18,23,46,0.06);
  --shadow-md: 0 10px 28px rgba(18,23,46,0.12);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { font-family: var(--font-display); }

/* ---------- Header / top nav ---------- */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
}
.brand:hover { text-decoration: none; }
.brand-logo { height: 36px; width: auto; }
.brand-sub {
  display: block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--ink-faint);
  text-transform: lowercase;
  letter-spacing: 0.02em;
}
.topnav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}
.topnav a {
  color: var(--ink-muted);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-control);
  border-bottom: 2px solid transparent;
}
.topnav a:hover { text-decoration: none; color: var(--accent); background: var(--accent-soft); }
.topnav-user {
  color: var(--ink-muted);
  font-size: 0.85rem;
  padding: 0.3rem 0.75rem;
  background: var(--surface-alt);
  border-radius: var(--radius-pill);
}

/* ---------- Layout ---------- */
.page {
  flex: 1;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}
.footer {
  text-align: center;
  padding: 1rem;
  color: var(--ink-faint);
  font-size: 0.8rem;
}

/* ---------- Panels / cards ---------- */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-box);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}
.panel-narrow { max-width: 480px; margin: 2rem auto; }

h1 { font-size: 1.6rem; margin: 0 0 1rem; color: var(--ink); font-weight: 700; }
h2 { font-size: 1.1rem; margin: 0 0 0.75rem; color: var(--ink); font-weight: 600; }

/* ---------- Forms ---------- */
.form-group { margin-bottom: 1rem; }
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
  color: var(--ink-muted);
}
input[type=text], input[type=password], input[type=number], select {
  width: 100%;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  font-size: 16px;
  background: var(--surface);
  color: var(--ink);
  font-family: var(--font-body);
}
input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.input-row { display: flex; gap: 0.5rem; }
.input-row input { flex: 1; }

/* ---------- Buttons ---------- */
.btn, .btn-primary, .btn-outline, .btn-caution, .btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 40px;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-control);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn, .btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn:hover, .btn-primary:hover { background: var(--accent-dark); }
.btn:disabled, .btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
  background: var(--accent-soft);
  color: var(--accent);
}
.btn-secondary:hover { background: #dbe3f7; }

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--ink);
}
.btn-outline:hover { background: var(--surface-alt); }

.btn-caution {
  background: transparent;
  border: 1.5px solid var(--status-warning);
  color: var(--status-warning);
}
.btn-caution:hover { background: var(--status-warning-soft); }

.btn-outline-sm, .btn-caution-sm {
  min-height: 32px;
  padding: 0.3rem 0.75rem;
  font-size: 0.82rem;
  border-radius: var(--radius-control);
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-body);
}
.btn-outline-sm {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--ink);
}
.btn-outline-sm:hover { background: var(--surface-alt); text-decoration: none; }
.btn-caution-sm {
  background: transparent;
  border: 1.5px solid var(--status-warning);
  color: var(--status-warning);
}
.btn-caution-sm:hover { background: var(--status-warning-soft); }

.btn-block { width: 100%; }
.btn-camera {
  background: var(--surface);
  border: 1.5px solid var(--border);
  color: var(--ink);
  min-height: 40px;
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-control);
  cursor: pointer;
  font-size: 1rem;
}
.btn-camera:hover { border-color: var(--accent); background: var(--accent-soft); }

/* ---------- Balance display ---------- */
.balance-card {
  text-align: center;
  padding: 2rem 1rem;
}
.balance-amount {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--accent);
  margin: 0.5rem 0;
}
.balance-amount.zero { color: var(--status-critical); }
.balance-sub { color: var(--ink-muted); font-size: 0.95rem; }

/* ---------- Tables ---------- */
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td {
  text-align: left;
  padding: 0.65rem 0.7rem;
  border-bottom: 1px solid var(--border);
}
th {
  color: var(--ink-muted);
  font-weight: 600;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--surface-alt);
}
tr:hover td { background: var(--bg); }
.table-wrap { overflow-x: auto; }
.mono { font-family: var(--font-mono); }

/* ---------- Status dot ---------- */
.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.5rem;
  flex-shrink: 0;
}
.dot-ok { background: var(--status-ok); }
.dot-warning { background: var(--status-warning); }
.dot-critical { background: var(--status-critical); }

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-pill);
  font-size: 0.76rem;
  font-weight: 700;
}
.badge-ok { background: var(--status-ok-soft); color: var(--status-ok); }
.badge-zero { background: var(--status-critical-soft); color: var(--status-critical); }
.badge-low { background: var(--status-warning-soft); color: var(--status-warning); }

/* ---------- Flash messages ---------- */
.flash-container { margin-bottom: 1rem; }
.flash {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-control);
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  font-weight: 500;
}
.flash-error { background: var(--status-critical-soft); color: var(--status-critical); }
.flash-success { background: var(--status-ok-soft); color: var(--status-ok); }

/* ---------- Camera / QR scan modal ---------- */
.scan-modal-backdrop {
  display: none;
  position: fixed; inset: 0;
  background: rgba(18,23,46,0.72);
  z-index: 100;
  align-items: center;
  justify-content: center;
}
.scan-modal-backdrop.open { display: flex; }
.scan-modal {
  background: #000;
  border-radius: var(--radius-panel);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  width: min(420px, 94vw);
  position: relative;
}
.scan-modal video { width: 100%; display: block; }
.scan-modal-close {
  position: absolute; top: 0.5rem; right: 0.5rem;
  background: rgba(255,255,255,0.92);
  border: none; border-radius: 50%;
  width: 36px; height: 36px;
  font-size: 1.1rem; cursor: pointer;
}
.scan-hint {
  position: absolute; bottom: 0.6rem; left: 0; right: 0;
  text-align: center; color: #fff; font-size: 0.85rem;
  text-shadow: 0 1px 2px rgba(0,0,0,0.8);
}

/* ---------- Search hero (public balance check) ---------- */
.search-hero { text-align: center; padding: 2.5rem 1rem 1rem; }
.search-hero h1 { font-size: 1.8rem; }
.search-hero p { color: var(--ink-muted); margin-bottom: 1.5rem; }

/* ---------- Misc ---------- */
.text-muted { color: var(--ink-muted); }
.text-right { text-align: right; }
.mt-1 { margin-top: 1rem; }
.card-list-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.75rem 0; border-bottom: 1px solid var(--border);
}
.card-list-item:last-child { border-bottom: none; }

/* ---------- Mobile ---------- */
@media (max-width: 768px) {
  .topbar-inner { flex-direction: column; align-items: flex-start; }
  .topnav { width: 100%; flex-direction: column; align-items: stretch; gap: 0.15rem; }
  .topnav a { padding: 0.6rem 0.5rem; }
  .balance-amount { font-size: 2.1rem; }
  .panel { padding: 1.1rem; }
}