@import url('https://fonts.googleapis.com/css2?family=Pixelify+Sans:wght@400..700&family=Press+Start+2P&family=Silkscreen:wght@400;700&family=Space+Mono:ital,wght@0,400;0,700;1,400&family=VT323&display=swap');

:root {
  --qr-font-pixel: 'Press Start 2P', monospace;
  --qr-font-retro: 'Silkscreen', 'Press Start 2P', monospace;
  --qr-font-text: 'Space Mono', 'Pixelify Sans', monospace;
  --qr-font-display: 'Pixelify Sans', monospace;

  /* Light Monochrome Theme */
  --qr-bg: #f4f4f4;
  --qr-surface: #ffffff;
  --qr-surface-2: #e5e5e5;
  --qr-surface-3: #d4d4d4;
  --qr-border: #000000;
  --qr-border-subtle: #444444;
  --qr-text: #0a0a0a;
  --qr-muted: #555555;
  --qr-primary: #000000;
  --qr-primary-contrast: #ffffff;
  --qr-primary-soft: rgba(0, 0, 0, 0.08);
  --qr-accent: #222222;
  --qr-success: #111111;
  --qr-warning: #333333;
  --qr-danger: #000000;
  --qr-radius: 0px;
  --qr-shadow: 4px 4px 0px #000000;
  --qr-shadow-sm: 2px 2px 0px #000000;
  --qr-shadow-lg: 6px 6px 0px #000000;
  --qr-grid-color: rgba(0, 0, 0, 0.08);
  --qr-grid-color-dense: rgba(0, 0, 0, 0.15);
}

[data-theme="dark"], html[data-bs-theme="dark"] {
  /* Dark Monochrome Theme */
  --qr-bg: #050505;
  --qr-surface: #0e0e0e;
  --qr-surface-2: #161616;
  --qr-surface-3: #222222;
  --qr-border: #ffffff;
  --qr-border-subtle: #444444;
  --qr-text: #ffffff;
  --qr-muted: #999999;
  --qr-primary: #ffffff;
  --qr-primary-contrast: #000000;
  --qr-primary-soft: rgba(255, 255, 255, 0.12);
  --qr-accent: #e5e5e5;
  --qr-success: #ffffff;
  --qr-warning: #cccccc;
  --qr-danger: #ffffff;
  --qr-radius: 0px;
  --qr-shadow: 4px 4px 0px #ffffff;
  --qr-shadow-sm: 2px 2px 0px #ffffff;
  --qr-shadow-lg: 6px 6px 0px #ffffff;
  --qr-grid-color: rgba(255, 255, 255, 0.08);
  --qr-grid-color-dense: rgba(255, 255, 255, 0.15);
}

/* ------------------------------------------------------------- Base & Grid */
* {
  -webkit-font-smoothing: antialiased;
  image-rendering: pixelated;
  box-sizing: border-box;
}

body {
  background-color: var(--qr-bg);
  background-image: 
    linear-gradient(to right, var(--qr-grid-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--qr-grid-color) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: 0 0;
  color: var(--qr-text);
  font-family: var(--qr-font-text);
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: -0.01em;
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6, .display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
  font-family: var(--qr-font-pixel);
  letter-spacing: -0.02em;
  line-height: 1.4;
  color: var(--qr-text);
  text-transform: uppercase;
}

h1 { font-size: clamp(18px, 3.2vw, 30px); }
h2 { font-size: clamp(15px, 2.5vw, 22px); }
h3 { font-size: clamp(13px, 1.8vw, 17px); }
h4, h5, h6 { font-size: 13px; }

a {
  color: var(--qr-text);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: all 0.1s ease;
}
a:hover {
  color: var(--qr-text);
  background-color: var(--qr-primary-soft);
  text-decoration: none;
}

.text-muted-2, .text-muted {
  color: var(--qr-muted) !important;
}

/* ---------------------------------------------------------------- surfaces */
.qr-card {
  background-color: var(--qr-surface);
  background-image: 
    linear-gradient(to right, var(--qr-grid-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--qr-grid-color) 1px, transparent 1px);
  background-size: 14px 14px;
  border: 2px solid var(--qr-border);
  border-radius: 0px !important;
  box-shadow: var(--qr-shadow);
  position: relative;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.qr-card::before, .qr-card::after {
  content: "+";
  position: absolute;
  font-family: var(--qr-font-pixel);
  font-size: 10px;
  color: var(--qr-text);
  opacity: 0.6;
  pointer-events: none;
}
.qr-card::before { top: 2px; left: 4px; }
.qr-card::after { bottom: 2px; right: 4px; }

.qr-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--qr-shadow-lg);
}

.qr-card-body {
  padding: 24px;
}

.qr-stat-label {
  font-family: var(--qr-font-retro);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--qr-muted);
  font-weight: 700;
}

.qr-stat-value {
  font-family: var(--qr-font-pixel);
  font-size: 18px;
  font-weight: 700;
  margin-top: 10px;
  letter-spacing: -0.03em;
  color: var(--qr-text);
}

.qr-stat-hint {
  font-family: var(--qr-font-text);
  font-size: 12px;
  color: var(--qr-muted);
}

/* ------------------------------------------------------------------ layout */
.qr-shell {
  display: flex;
  min-height: 100vh;
}

.qr-sidebar {
  width: 260px;
  flex: 0 0 260px;
  background: var(--qr-surface);
  background-image: 
    linear-gradient(to right, var(--qr-grid-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--qr-grid-color) 1px, transparent 1px);
  background-size: 20px 20px;
  border-right: 2px solid var(--qr-border);
  padding: 20px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 30;
}

.qr-main {
  flex: 1 1 auto;
  min-width: 0;
}

.qr-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--qr-surface);
  border-bottom: 2px solid var(--qr-border);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: 0 4px 0px rgba(0, 0, 0, 0.2);
}

.qr-content {
  padding: 28px;
  max-width: 1440px;
}

/* Brand */
.qr-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--qr-font-pixel);
  font-weight: 700;
  font-size: 14px;
  color: var(--qr-text);
  padding: 6px 8px 16px;
  letter-spacing: -0.03em;
  text-decoration: none !important;
}

.qr-brand:hover {
  background: transparent;
}

.qr-brand-img {
  height: 36px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  display: block;
}

.qr-brand-mark-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  display: block;
}

/* Dynamic theme logo switching */
[data-theme="dark"] .qr-brand-img-light,
html[data-bs-theme="dark"] .qr-brand-img-light {
  display: none !important;
}

[data-theme="dark"] .qr-brand-img-dark,
html[data-bs-theme="dark"] .qr-brand-img-dark {
  display: block !important;
}

[data-theme="light"] .qr-brand-img-dark,
html[data-bs-theme="light"] .qr-brand-img-dark {
  display: none !important;
}

[data-theme="light"] .qr-brand-img-light,
html[data-bs-theme="light"] .qr-brand-img-light {
  display: block !important;
}

.qr-brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 0px;
  background: var(--qr-text);
  color: var(--qr-bg);
  border: 2px solid var(--qr-border);
  box-shadow: var(--qr-shadow-sm);
  display: grid;
  place-items: center;
  font-family: var(--qr-font-pixel);
  font-size: 13px;
  font-weight: 800;
}

.qr-nav-title {
  font-family: var(--qr-font-pixel);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--qr-muted);
  font-weight: 700;
  padding: 18px 10px 8px;
}

.qr-nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 2px solid transparent;
  border-radius: 0px;
  color: var(--qr-text);
  font-family: var(--qr-font-retro);
  font-size: 12px;
  margin-bottom: 4px;
  text-decoration: none !important;
  transition: all 0.1s ease;
}

.qr-nav-link:hover {
  background: var(--qr-surface-2);
  border-color: var(--qr-border-subtle);
  transform: translate(-1px, -1px);
}

.qr-nav-link.active {
  background: var(--qr-text);
  color: var(--qr-bg);
  border: 2px solid var(--qr-border);
  box-shadow: var(--qr-shadow-sm);
  font-weight: 700;
}
.qr-nav-link.active i {
  color: var(--qr-bg);
}

/* ------------------------------------------------------------------ tables */
.qr-table-wrap {
  overflow-x: auto;
  border: 2px solid var(--qr-border);
  box-shadow: var(--qr-shadow);
  background: var(--qr-surface);
}

.qr-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--qr-font-text);
  font-size: 13px;
  margin-bottom: 0;
}

.qr-table th {
  font-family: var(--qr-font-pixel);
  text-align: left;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--qr-text);
  background: var(--qr-surface-2);
  font-weight: 700;
  padding: 14px 16px;
  border-bottom: 2px solid var(--qr-border);
  border-right: 1px solid var(--qr-border-subtle);
}
.qr-table th:last-child { border-right: none; }

.qr-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--qr-border-subtle);
  border-right: 1px solid var(--qr-border-subtle);
  vertical-align: middle;
  color: var(--qr-text);
}
.qr-table td:last-child { border-right: none; }

.qr-table tbody tr:hover {
  background: var(--qr-surface-2);
}

/* ------------------------------------------------------------------ badges */
.qr-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 0px;
  font-family: var(--qr-font-pixel);
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  border: 2px solid var(--qr-border);
  background: var(--qr-surface);
  color: var(--qr-text);
  box-shadow: var(--qr-shadow-sm);
}

.qr-badge::before {
  content: "[";
  font-weight: 700;
}
.qr-badge::after {
  content: "]";
  font-weight: 700;
}

.qr-badge-success {
  background: var(--qr-text);
  color: var(--qr-bg);
  border-color: var(--qr-border);
}
.qr-badge-warning {
  background: var(--qr-surface-2);
  color: var(--qr-text);
  border-color: var(--qr-border);
  border-style: dashed;
}
.qr-badge-danger {
  background: var(--qr-text);
  color: var(--qr-bg);
  border-color: var(--qr-border);
  text-decoration: line-through;
}
.qr-badge-muted {
  background: var(--qr-surface-2);
  color: var(--qr-muted);
  border-color: var(--qr-border-subtle);
}
.qr-badge-info {
  background: var(--qr-surface);
  color: var(--qr-text);
  border-color: var(--qr-border);
}

/* ------------------------------------------------------------------ inputs */
.form-control, .form-select {
  background: var(--qr-surface);
  border: 2px solid var(--qr-border);
  color: var(--qr-text);
  border-radius: 0px !important;
  padding: 12px 14px;
  font-family: var(--qr-font-text);
  font-size: 14px;
  box-shadow: var(--qr-shadow-sm);
  transition: all 0.1s ease;
}

.form-control:focus, .form-select:focus {
  background: var(--qr-surface);
  color: var(--qr-text);
  border-color: var(--qr-border);
  box-shadow: var(--qr-shadow);
  outline: none;
  transform: translate(-1px, -1px);
}

.form-control::placeholder {
  color: var(--qr-muted);
}

.form-label {
  font-family: var(--qr-font-retro);
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--qr-text);
}

.form-text {
  font-family: var(--qr-font-text);
  color: var(--qr-muted);
  font-size: 12px;
  margin-top: 6px;
}

/* Buttons */
.btn {
  border-radius: 0px !important;
  font-family: var(--qr-font-pixel);
  font-weight: 700;
  font-size: 11px;
  padding: 12px 20px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  border: 2px solid var(--qr-border);
  box-shadow: var(--qr-shadow);
  transition: all 0.1s ease;
  position: relative;
  cursor: pointer;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--qr-shadow-lg);
  color: inherit;
}

.btn:active {
  transform: translate(2px, 2px) !important;
  box-shadow: 0px 0px 0px var(--qr-border) !important;
}

.btn-primary {
  background: var(--qr-text);
  border-color: var(--qr-border);
  color: var(--qr-bg) !important;
}
.btn-primary:hover {
  background: var(--qr-text);
  border-color: var(--qr-border);
  filter: brightness(0.9);
}

.btn-soft {
  background: var(--qr-surface);
  color: var(--qr-text) !important;
  border-color: var(--qr-border);
}
.btn-soft:hover {
  background: var(--qr-surface-2);
  color: var(--qr-text) !important;
}

.btn-sm {
  padding: 7px 12px;
  font-size: 9px;
  box-shadow: var(--qr-shadow-sm);
}

.btn-lg {
  padding: 16px 28px;
  font-size: 11px;
  box-shadow: var(--qr-shadow-lg);
}

/* ------------------------------------------------------------------- misc */
.qr-code-block {
  background: #000000;
  color: #ffffff;
  border: 2px solid var(--qr-border);
  border-radius: 0px;
  padding: 18px 20px;
  font-family: var(--qr-font-text);
  font-size: 13px;
  line-height: 1.7;
  overflow-x: auto;
  position: relative;
  box-shadow: var(--qr-shadow);
}

.qr-code-block .qr-copy {
  position: absolute;
  top: 10px;
  right: 10px;
  background: #ffffff;
  color: #000000;
  border: 1px solid #ffffff;
  border-radius: 0px;
  font-family: var(--qr-font-pixel);
  font-size: 9px;
  padding: 5px 10px;
  cursor: pointer;
  box-shadow: 2px 2px 0px rgba(255, 255, 255, 0.4);
}

.qr-code-block .qr-copy:hover {
  background: #cccccc;
}

.qr-empty {
  text-align: center;
  padding: 50px 20px;
  color: var(--qr-muted);
  font-family: var(--qr-font-retro);
}

.qr-empty-icon {
  font-size: 36px;
  opacity: 0.8;
  margin-bottom: 12px;
}

.qr-toast-stack {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 1080;
  display: grid;
  gap: 12px;
}

.qr-toast {
  background: var(--qr-surface);
  border: 2px solid var(--qr-border);
  border-radius: 0px;
  padding: 14px 18px;
  box-shadow: var(--qr-shadow);
  min-width: 280px;
  font-family: var(--qr-font-retro);
  font-size: 12px;
  color: var(--qr-text);
  position: relative;
}

.qr-toast.success::before {
  content: "[OK] ";
  font-family: var(--qr-font-pixel);
  font-size: 10px;
}

.qr-toast.error::before {
  content: "[ERR] ";
  font-family: var(--qr-font-pixel);
  font-size: 10px;
}

/* ------------------------------------------------------------- public site */
.qr-hero {
  padding: 100px 0 80px;
  background-color: var(--qr-bg);
  background-image: 
    radial-gradient(circle at 50% 50%, var(--qr-primary-soft) 0%, transparent 70%),
    linear-gradient(to right, var(--qr-grid-color-dense) 1px, transparent 1px),
    linear-gradient(to bottom, var(--qr-grid-color-dense) 1px, transparent 1px);
  background-size: 100% 100%, 32px 32px, 32px 32px;
  border-bottom: 2px solid var(--qr-border);
  position: relative;
}

.qr-hero::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--qr-border) 0 8px, transparent 8px 16px);
}

.qr-section {
  padding: 80px 0;
  border-bottom: 1px dashed var(--qr-border-subtle);
  position: relative;
}

.qr-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--qr-surface);
  color: var(--qr-text);
  border: 2px solid var(--qr-border);
  border-radius: 0px;
  padding: 6px 14px;
  font-family: var(--qr-font-pixel);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  box-shadow: var(--qr-shadow-sm);
}

.qr-docs-shell {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.qr-docs-nav {
  position: sticky;
  top: 90px;
  width: 250px;
  flex: 0 0 250px;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
  border: 2px solid var(--qr-border);
  background: var(--qr-surface);
  padding: 16px;
  box-shadow: var(--qr-shadow);
}

.qr-docs-nav a {
  display: block;
  padding: 8px 12px;
  border-radius: 0px;
  color: var(--qr-muted);
  font-family: var(--qr-font-retro);
  font-size: 12px;
  border: 1px solid transparent;
  margin-bottom: 4px;
  text-decoration: none !important;
}

.qr-docs-nav a:hover, .qr-docs-nav a.active {
  background: var(--qr-text);
  color: var(--qr-bg) !important;
  border-color: var(--qr-border);
  box-shadow: var(--qr-shadow-sm);
}

.qr-docs-body {
  flex: 1 1 auto;
  min-width: 0;
}

.qr-docs-body h2 {
  margin-top: 48px;
  font-size: 20px;
  border-bottom: 2px solid var(--qr-border);
  padding-bottom: 10px;
}

.qr-docs-body h3 {
  margin-top: 32px;
  font-size: 15px;
}

/* --------------------------------------------------------------- checkout */
.qr-pay-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
  background-color: var(--qr-bg);
  background-image: 
    linear-gradient(to right, var(--qr-grid-color-dense) 1px, transparent 1px),
    linear-gradient(to bottom, var(--qr-grid-color-dense) 1px, transparent 1px);
  background-size: 32px 32px;
}

.qr-pay-card {
  width: 100%;
  max-width: 480px;
}

.qr-qr-frame {
  background: #ffffff;
  border: 3px solid #000000;
  border-radius: 0px;
  padding: 20px;
  display: grid;
  place-items: center;
  box-shadow: 4px 4px 0px rgba(0, 0, 0, 0.4);
  position: relative;
}

.qr-qr-frame::before {
  content: "[ SCAN QRIS ]";
  position: absolute;
  top: -12px;
  background: #000000;
  color: #ffffff;
  font-family: var(--qr-font-pixel);
  font-size: 9px;
  padding: 2px 8px;
  border: 1px solid #ffffff;
}

.qr-qr-frame img, .qr-qr-frame canvas {
  width: 100%;
  max-width: 300px;
  height: auto;
  image-rendering: pixelated;
}

.qr-countdown {
  font-family: var(--qr-font-pixel);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.05em;
  background: var(--qr-surface);
  border: 2px solid var(--qr-border);
  padding: 6px 12px;
  box-shadow: var(--qr-shadow-sm);
}

/* ------------------------------------------------------------- Alerts & Modals */
.alert {
  border-radius: 0px !important;
  border: 2px solid var(--qr-border) !important;
  background: var(--qr-surface) !important;
  color: var(--qr-text) !important;
  box-shadow: var(--qr-shadow-sm) !important;
  font-family: var(--qr-font-text);
  font-size: 13px;
  position: relative;
}

.alert-success { border-left-width: 6px !important; }
.alert-danger { border-left-width: 6px !important; }
.alert-warning { border-left-width: 6px !important; }
.alert-info { border-left-width: 6px !important; }

.modal-content {
  border-radius: 0px !important;
  border: 2px solid var(--qr-border) !important;
  background: var(--qr-surface) !important;
  box-shadow: var(--qr-shadow-lg) !important;
}

.dropdown-menu {
  border-radius: 0px !important;
  border: 2px solid var(--qr-border) !important;
  background: var(--qr-surface) !important;
  box-shadow: var(--qr-shadow) !important;
  font-family: var(--qr-font-retro);
  font-size: 12px;
  padding: 6px 0;
}

.dropdown-item {
  color: var(--qr-text) !important;
  padding: 8px 16px;
}
.dropdown-item:hover {
  background: var(--qr-surface-2) !important;
  color: var(--qr-text) !important;
}

/* Accordion */
.accordion-item {
  border-radius: 0px !important;
  border: 2px solid var(--qr-border) !important;
  margin-bottom: 12px;
  box-shadow: var(--qr-shadow-sm);
}

.accordion-button {
  border-radius: 0px !important;
  font-family: var(--qr-font-retro);
  font-size: 13px;
  font-weight: 700;
  background: var(--qr-surface) !important;
  color: var(--qr-text) !important;
  box-shadow: none !important;
  border-bottom: 1px solid var(--qr-border-subtle);
}
.accordion-button:not(.collapsed) {
  background: var(--qr-surface-2) !important;
  border-bottom: 2px solid var(--qr-border);
}
.accordion-button::after {
  filter: grayscale(1) invert(var(--accordion-invert, 0));
}
[data-theme="dark"] .accordion-button::after {
  --accordion-invert: 1;
}

/* ------------------------------------------------------------- responsive */
@media (max-width: 991.98px) {
  .qr-sidebar {
    position: fixed;
    z-index: 1050;
    left: 0;
    top: 0;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    box-shadow: 10px 0 0px rgba(0, 0, 0, 0.5);
  }
  .qr-sidebar.open {
    transform: translateX(0);
  }
  .qr-docs-shell {
    flex-direction: column;
  }
  .qr-docs-nav {
    position: static;
    width: 100%;
    flex: none;
  }
}

@media (max-width: 575.98px) {
  .qr-content {
    padding: 16px;
  }
  .qr-stat-value {
    font-size: 16px;
  }
  .btn {
    font-size: 10px;
    padding: 10px 14px;
  }
}

.qr-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1040;
}
.qr-backdrop.show {
  display: block;
}