:root {
  --bg-cream: #faf6f0;
  --bg-card: #ffffff;
  --bg-subtle: #f3ece1;
  --bg-dark: #1d1410;
  --text-main: #1f1612;
  --text-muted: #66554b;
  --border-warm: #e5d8c7;
  --brand-primary: #8f2d1e;
  --brand-primary-hover: #732114;
  --brand-crust: #c8862e;
  --brand-olive: #2b6e44;
  --status-active-bg: #e7f6ec;
  --status-active-fg: #186337;
  --status-redeemed-bg: #eef2ff;
  --status-redeemed-fg: #2c439e;
  --status-expired-bg: #fcebe9;
  --status-expired-fg: #9c2b23;
  --status-blocked-bg: #fff5e5;
  --status-blocked-fg: #945600;
  --shadow-sm: 0 2px 8px rgba(31, 22, 18, 0.06);
  --shadow-md: 0 10px 28px rgba(31, 22, 18, 0.09);
  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.25rem;
  accent-color: var(--brand-primary);
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  color: var(--text-main);
  background-color: var(--bg-cream);
  text-align: start;
  overflow-wrap: break-word;
}

h1, h2, h3, h4 {
  margin-top: 0;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.balance-heading {
  text-wrap: balance;
}

p {
  margin-top: 0;
  text-wrap: pretty;
  max-width: 75ch;
}

/* Top Navigation Bar */
.topbar {
  background: var(--bg-dark);
  color: #ffffff;
  border-bottom: 3px solid var(--brand-crust);
  position: sticky;
  top: 0;
  z-index: 40;
}

.topbar-inner {
  max-width: 82rem;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: #ffffff;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.125rem;
}

.brand-badge-icon {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.6rem;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-crust));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
}

.topbar-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.nav-pill {
  color: #f4ebe1;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  transition: background 0.15s ease, border-color 0.15s ease;
}

.nav-pill:hover, .nav-pill.active {
  background: var(--brand-primary);
  border-color: var(--brand-primary);
  color: #ffffff;
}

.nav-pill-accent {
  background: var(--brand-crust);
  color: #1c130e;
  border-color: var(--brand-crust);
}

.nav-pill-accent:hover {
  background: #dda047;
  color: #1c130e;
}

/* Containers */
.container {
  max-width: 82rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3.5rem;
}

.container-narrow {
  max-width: 48rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3.5rem;
}

/* Hero Banner */
.hero-banner {
  background: linear-gradient(135deg, #261813 0%, #5c2016 55%, #8f2d1e 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.75rem);
  box-shadow: var(--shadow-md);
  margin-bottom: 1.75rem;
  position: relative;
  overflow: hidden;
}

.hero-eyebrow {
  display: inline-block;
  background: rgba(200, 134, 46, 0.28);
  border: 1px solid rgba(255, 214, 153, 0.45);
  color: #ffe2b8;
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 0.85rem;
}

.hero-title {
  color: #ffffff;
  font-size: clamp(1.65rem, 1.2rem + 2.2vw, 2.65rem);
  margin-bottom: 0.65rem;
}

.hero-subtitle {
  color: #f2e5d8;
  font-size: clamp(1rem, 0.95rem + 0.35vw, 1.15rem);
  margin-bottom: 1.25rem;
}

.hero-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.hero-step {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
}

.hero-step strong {
  display: block;
  color: #ffd9a0;
  font-size: 0.9375rem;
  margin-bottom: 0.15rem;
}

/* Grid & Cards */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(21rem, 1fr));
  gap: 1.5rem;
  align-items: start;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 1.25rem;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13.5rem, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  box-shadow: var(--shadow-sm);
}

.card-highlight {
  border: 2px solid var(--brand-primary);
  box-shadow: var(--shadow-md);
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.25rem;
  box-shadow: var(--shadow-sm);
}

.kpi-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
}

.kpi-value {
  font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  font-weight: 800;
  color: var(--text-main);
  margin: 0.25rem 0;
}

.kpi-sub {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Promo Cards */
.promo-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
}

.promo-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.promo-card.selected {
  border: 2px solid var(--brand-primary);
  background: #fffdf9;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
}

.badge-promo {
  background: #fde8e4;
  color: var(--brand-primary);
}

.badge-active {
  background: var(--status-active-bg);
  color: var(--status-active-fg);
}

.badge-redeemed {
  background: var(--status-redeemed-bg);
  color: var(--status-redeemed-fg);
}

.badge-expired {
  background: var(--status-expired-bg);
  color: var(--status-expired-fg);
}

.badge-blocked {
  background: var(--status-blocked-bg);
  color: var(--status-blocked-fg);
}

.badge-source {
  background: var(--bg-subtle);
  color: var(--text-main);
  border: 1px solid var(--border-warm);
}

/* Forms */
.form-group {
  margin-bottom: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 0.85rem;
}

label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-main);
}

input[type="text"],
input[type="tel"],
input[type="email"],
input[type="number"],
input[type="password"],
input[type="url"],
input[type="datetime-local"],
select,
textarea {
  width: 100%;
  font: inherit;
  font-size: 0.95rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid #cbb9a6;
  background: #ffffff;
  color: var(--text-main);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(143, 45, 30, 0.16);
}

input:user-invalid,
textarea:user-invalid {
  border-color: #c92a2a;
}

/* Channel Selector Pills */
.channel-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.channel-option {
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.5rem;
  text-align: center;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--bg-subtle);
}

.channel-option:has(input:checked) {
  border-color: var(--brand-primary);
  background: #fde8e4;
  color: var(--brand-primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 700;
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, transform 0.1s ease;
}

.btn:active {
  transform: scale(0.99);
}

.btn-primary {
  background: var(--brand-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--brand-primary-hover);
}

.btn-success {
  background: var(--brand-olive);
  color: #ffffff;
}

.btn-success:hover {
  background: #215735;
}

.btn-outline {
  background: #ffffff;
  color: var(--text-main);
  border-color: var(--border-warm);
}

.btn-outline:hover {
  background: var(--bg-subtle);
}

.btn-sm {
  font-size: 0.8125rem;
  padding: 0.4rem 0.75rem;
}

.btn-block {
  width: 100%;
}

/* Tables */
.table-wrap {
  width: 100%;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

th, td {
  padding: 0.75rem 0.85rem;
  text-align: start;
  border-bottom: 1px solid var(--border-warm);
  vertical-align: middle;
}

th {
  background: var(--bg-subtle);
  font-weight: 700;
  color: var(--text-muted);
  font-size: 0.78rem;
}

tr:hover td {
  background: #fdfaf5;
}

/* Admin Tabs */
.tabs-bar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--border-warm);
  padding-bottom: 0.75rem;
}

.tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-warm);
  color: var(--text-main);
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
}

.tab-btn.active {
  background: var(--brand-primary);
  color: #ffffff;
  border-color: var(--brand-primary);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* QR Box & Scanner */
.qr-showcase {
  background: #ffffff;
  border: 2px dashed var(--brand-crust);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
}

.voucher-code-pill {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  background: var(--bg-subtle);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-sm);
  margin: 0.5rem 0;
}

.scanner-viewport {
  position: relative;
  width: 100%;
  max-width: 26rem;
  margin: 0 auto;
  aspect-ratio: 1 / 1;
  background: #120d0a;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 3px solid var(--brand-crust);
  display: flex;
  align-items: center;
  justify-content: center;
}

.scanner-viewport video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scanner-reticle {
  position: absolute;
  inset: 16%;
  border: 2px solid rgba(255, 216, 155, 0.85);
  border-radius: 1rem;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.38);
  pointer-events: none;
}

.quick-amounts {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

/* Popover Toast Notifications (Modern Web Guidance compliant) */
.toast-popover {
  position: fixed;
  inset: auto 1.25rem 1.25rem auto;
  margin: 0;
  padding: 0.9rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-warm);
  background: var(--bg-dark);
  color: #ffffff;
  box-shadow: var(--shadow-md);
  max-width: 24rem;
  z-index: 9999;
}

[popover]:is(:popover-open, .\:popover-open) {
  display: flex;
  align-items: center;
   justify-content: space-between;
  gap: 0.85rem;
}

.alert-box {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  font-weight: 600;
}

.alert-success {
  background: var(--status-active-bg);
  color: var(--status-active-fg);
  border: 1px solid #b5e2c5;
}

.alert-error {
  background: var(--status-expired-bg);
  color: var(--status-expired-fg);
  border: 1px solid #f2b9b5;
}

@media (max-width: 640px) {
  .channel-options {
    grid-template-columns: 1fr;
  }
}