/* ==========================================================================
   Matrix Theme for chiba.tw — Bootstrap 5.3.3 Override
   Replaces sticky-footer-navbar.css
   ========================================================================== */

/* --------------------------------------------------------------------------
   Google Font Import
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&display=swap');

/* --------------------------------------------------------------------------
   Design Tokens (CSS Custom Properties)
   -------------------------------------------------------------------------- */
:root {
    --matrix-bg: #0a0a0a;
    --matrix-primary: #00ff41;
    --matrix-dark: #008f11;
    --matrix-dim: #003b00;
    --matrix-danger: #ff0040;
    --matrix-bright: #33ff66;
    --matrix-card-bg: rgba(0, 255, 65, 0.03);
    --matrix-border: rgba(0, 255, 65, 0.3);
    --matrix-border-dim: rgba(0, 255, 65, 0.2);
    --matrix-glow: rgba(0, 255, 65, 0.5);
    --matrix-font: 'Share Tech Mono', monospace;
    --matrix-input-bg: #0d0d0d;
    --matrix-surface: #111;
    --matrix-footer-bg: #050505;
    --matrix-scanline: rgba(0, 0, 0, 0.15);
    --matrix-rain-opacity: 1;
    --matrix-flicker: matrixFlicker;
    --matrix-close-filter: invert(1);
    --matrix-toggler-filter: invert(56%) sepia(89%) saturate(1000%) hue-rotate(90deg) brightness(1.2);
    --matrix-content-bg: rgba(10, 10, 10, 0.88);
}

/* Light mode — terminal on paper */
body.matrix-light {
    --matrix-bg: #e8e8e0;
    --matrix-primary: #005500;
    --matrix-dark: #003300;
    --matrix-dim: #99bb99;
    --matrix-danger: #cc0033;
    --matrix-bright: #007700;
    --matrix-card-bg: rgba(0, 85, 0, 0.05);
    --matrix-border: rgba(0, 85, 0, 0.25);
    --matrix-border-dim: rgba(0, 85, 0, 0.15);
    --matrix-glow: rgba(0, 85, 0, 0.3);
    --matrix-input-bg: #f0f0e8;
    --matrix-surface: #ddddd5;
    --matrix-footer-bg: #d8d8d0;
    --matrix-scanline: rgba(0, 0, 0, 0.03);
    --matrix-rain-opacity: 0.08;
    --matrix-flicker: none;
    --matrix-close-filter: none;
    --matrix-toggler-filter: invert(20%) sepia(90%) saturate(1000%) hue-rotate(90deg);
    --matrix-content-bg: transparent;
}

/* --------------------------------------------------------------------------
   Keyframes
   -------------------------------------------------------------------------- */
@keyframes matrixFlicker {
    0%   { opacity: 0.97; }
    50%  { opacity: 1; }
    100% { opacity: 0.97; }
}

/* FOUC prevention: set bg early via html class */
html.matrix-light-preload {
    background-color: #e8e8e0;
}

/* --------------------------------------------------------------------------
   1. Body & Scanline Effect
   -------------------------------------------------------------------------- */
body {
    background-color: var(--matrix-bg);
    font-family: var(--matrix-font);
    color: var(--matrix-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    animation: matrixFlicker 0.15s infinite;
}

body.matrix-light {
    animation: none;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    pointer-events: none;
    background: repeating-linear-gradient(
        0deg,
        var(--matrix-scanline) 0px,
        var(--matrix-scanline) 1px,
        transparent 1px,
        transparent 3px
    );
}

/* --------------------------------------------------------------------------
   2. Selection
   -------------------------------------------------------------------------- */
::selection {
    background: var(--matrix-primary);
    color: var(--matrix-bg);
}

::-moz-selection {
    background: var(--matrix-primary);
    color: var(--matrix-bg);
}

/* --------------------------------------------------------------------------
   3. Custom Scrollbar (WebKit)
   -------------------------------------------------------------------------- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--matrix-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--matrix-dark);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--matrix-primary);
}

/* --------------------------------------------------------------------------
   4. Layout (from sticky-footer-navbar.css)
   -------------------------------------------------------------------------- */
main {
    flex: 1 0 auto;
}

main > .container {
    padding: 60px 15px 0;
    background: var(--matrix-content-bg);
    border-radius: 4px;
}

/* --------------------------------------------------------------------------
   5. Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    color: var(--matrix-primary);
}

p {
    color: var(--matrix-primary);
}

/* --------------------------------------------------------------------------
   6. Links
   -------------------------------------------------------------------------- */
a {
    color: var(--matrix-primary);
    text-decoration: none;
}

a:hover {
    color: var(--matrix-bright);
    text-shadow: 0 0 5px rgba(0, 255, 65, 0.3);
}

/* --------------------------------------------------------------------------
   7. Horizontal Rule
   -------------------------------------------------------------------------- */
hr {
    border-color: var(--matrix-border-dim);
    opacity: 1;
}

/* --------------------------------------------------------------------------
   8. Navbar
   -------------------------------------------------------------------------- */
.navbar {
    background-color: var(--matrix-bg) !important;
    border-bottom: 1px solid var(--matrix-border);
}

.navbar-brand {
    color: var(--matrix-primary) !important;
    font-family: var(--matrix-font);
    text-shadow: 0 0 10px var(--matrix-glow), 0 0 20px rgba(0, 255, 65, 0.3);
}

.navbar-brand:hover {
    color: var(--matrix-bright) !important;
}

.nav-link {
    color: var(--matrix-primary) !important;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--matrix-bright) !important;
}

.nav-link.active {
    color: var(--matrix-bright) !important;
    text-shadow: 0 0 5px rgba(0, 255, 65, 0.3);
}

.navbar-toggler {
    border-color: var(--matrix-primary) !important;
}

.navbar-toggler-icon {
    filter: var(--matrix-toggler-filter);
}

/* --------------------------------------------------------------------------
   9. Cards
   -------------------------------------------------------------------------- */
.card {
    background-color: var(--matrix-card-bg);
    border: 1px solid var(--matrix-border);
    color: var(--matrix-primary);
}

.card-header {
    background-color: rgba(0, 255, 65, 0.08);
    border-bottom: 1px solid var(--matrix-border);
    color: var(--matrix-primary);
}

.card-body,
.card-title,
.card-text {
    color: var(--matrix-primary);
}

.card-footer {
    background-color: rgba(0, 255, 65, 0.05);
    border-top: 1px solid var(--matrix-border);
}

/* --------------------------------------------------------------------------
   10. Buttons — Primary
   -------------------------------------------------------------------------- */
.btn-primary {
    background-color: transparent;
    border: 2px solid var(--matrix-primary);
    color: var(--matrix-primary);
}

.btn-primary:hover {
    background-color: rgba(0, 255, 65, 0.1);
    border-color: var(--matrix-primary);
    color: var(--matrix-primary);
    box-shadow: 0 0 15px var(--matrix-glow);
}

.btn-primary:focus,
.btn-primary:focus-visible {
    background-color: rgba(0, 255, 65, 0.1);
    border-color: var(--matrix-primary);
    color: var(--matrix-primary);
    box-shadow: 0 0 15px var(--matrix-glow);
}

.btn-primary:active,
.btn-primary.active {
    background-color: rgba(0, 255, 65, 0.2);
    border-color: var(--matrix-primary);
    color: var(--matrix-primary);
}

/* --------------------------------------------------------------------------
   11. Buttons — Danger
   -------------------------------------------------------------------------- */
.btn-danger {
    background-color: transparent;
    border: 2px solid var(--matrix-danger);
    color: var(--matrix-danger);
}

.btn-danger:hover {
    background-color: rgba(255, 0, 64, 0.1);
    border-color: var(--matrix-danger);
    color: var(--matrix-danger);
    box-shadow: 0 0 15px rgba(255, 0, 64, 0.5);
}

.btn-danger:focus,
.btn-danger:focus-visible {
    background-color: rgba(255, 0, 64, 0.1);
    border-color: var(--matrix-danger);
    color: var(--matrix-danger);
    box-shadow: 0 0 15px rgba(255, 0, 64, 0.5);
}

.btn-danger:active,
.btn-danger.active {
    background-color: rgba(255, 0, 64, 0.2);
    border-color: var(--matrix-danger);
    color: var(--matrix-danger);
}

/* --------------------------------------------------------------------------
   12. Buttons — Secondary
   -------------------------------------------------------------------------- */
.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--matrix-dark);
    color: var(--matrix-dark);
}

.btn-secondary:hover {
    background-color: rgba(0, 143, 17, 0.1);
    border-color: var(--matrix-dark);
    color: var(--matrix-dark);
    box-shadow: 0 0 10px rgba(0, 143, 17, 0.5);
}

.btn-secondary:focus,
.btn-secondary:focus-visible {
    background-color: rgba(0, 143, 17, 0.1);
    border-color: var(--matrix-dark);
    color: var(--matrix-dark);
    box-shadow: 0 0 10px rgba(0, 143, 17, 0.5);
}

.btn-secondary:active,
.btn-secondary.active {
    background-color: rgba(0, 143, 17, 0.2);
    border-color: var(--matrix-dark);
    color: var(--matrix-dark);
}

/* --------------------------------------------------------------------------
   13. Buttons — Success
   -------------------------------------------------------------------------- */
.btn-success {
    background-color: transparent;
    border: 2px solid var(--matrix-bright);
    color: var(--matrix-bright);
}

.btn-success:hover {
    background-color: rgba(51, 255, 102, 0.1);
    border-color: var(--matrix-bright);
    color: var(--matrix-bright);
    box-shadow: 0 0 15px rgba(51, 255, 102, 0.5);
}

.btn-success:focus,
.btn-success:focus-visible {
    background-color: rgba(51, 255, 102, 0.1);
    border-color: var(--matrix-bright);
    color: var(--matrix-bright);
    box-shadow: 0 0 15px rgba(51, 255, 102, 0.5);
}

.btn-success:active,
.btn-success.active {
    background-color: rgba(51, 255, 102, 0.2);
    border-color: var(--matrix-bright);
    color: var(--matrix-bright);
}

/* --------------------------------------------------------------------------
   14. Buttons — Outline Variants
   -------------------------------------------------------------------------- */
.btn-outline-primary {
    border-color: var(--matrix-primary);
    color: var(--matrix-primary);
}

.btn-outline-primary:hover {
    background-color: var(--matrix-primary);
    color: var(--matrix-bg);
    box-shadow: 0 0 15px var(--matrix-glow);
}

.btn-outline-danger {
    border-color: var(--matrix-danger);
    color: var(--matrix-danger);
}

.btn-outline-danger:hover {
    background-color: var(--matrix-danger);
    color: #fff;
    box-shadow: 0 0 15px rgba(255, 0, 64, 0.5);
}

/* --------------------------------------------------------------------------
   15. Form Controls
   -------------------------------------------------------------------------- */
.form-control {
    background-color: var(--matrix-input-bg);
    border: 1px solid var(--matrix-border);
    color: var(--matrix-primary);
    caret-color: var(--matrix-primary);
    font-family: var(--matrix-font);
}

.form-control:focus {
    background-color: var(--matrix-input-bg);
    border-color: var(--matrix-primary);
    color: var(--matrix-primary);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
}

.form-control:disabled,
.form-control[readonly] {
    background-color: var(--matrix-surface);
    color: var(--matrix-dim);
    border-color: rgba(0, 255, 65, 0.15);
}

.form-select {
    background-color: var(--matrix-input-bg);
    border: 1px solid var(--matrix-border);
    color: var(--matrix-primary);
    font-family: var(--matrix-font);
}

.form-select:focus {
    background-color: var(--matrix-input-bg);
    border-color: var(--matrix-primary);
    color: var(--matrix-primary);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
}

.input-group-text {
    background-color: var(--matrix-surface);
    border: 1px solid var(--matrix-border);
    color: var(--matrix-primary);
    font-family: var(--matrix-font);
}

.form-label {
    color: var(--matrix-primary);
}

.form-text {
    color: var(--matrix-dark);
}

.form-check-input {
    background-color: var(--matrix-input-bg);
    border-color: var(--matrix-border);
}

.form-check-input:checked {
    background-color: var(--matrix-primary);
    border-color: var(--matrix-primary);
}

.form-check-label {
    color: var(--matrix-primary);
}

/* --------------------------------------------------------------------------
   16. Placeholders
   -------------------------------------------------------------------------- */
input::placeholder,
textarea::placeholder {
    color: var(--matrix-dim) !important;
    opacity: 1;
}

.form-control::placeholder {
    color: var(--matrix-dim) !important;
    opacity: 1;
}

/* --------------------------------------------------------------------------
   17. Modal
   -------------------------------------------------------------------------- */
.modal-content {
    background-color: var(--matrix-bg);
    border: 1px solid var(--matrix-border);
    color: var(--matrix-primary);
}

.modal-header {
    border-bottom: 1px solid var(--matrix-border-dim);
}

.modal-header .modal-title {
    color: var(--matrix-primary);
}

.modal-footer {
    border-top: 1px solid var(--matrix-border-dim);
}

.modal-backdrop.show {
    opacity: 0.8;
}

.btn-close {
    filter: var(--matrix-close-filter);
}

/* --------------------------------------------------------------------------
   18. Tables
   -------------------------------------------------------------------------- */
.table {
    color: var(--matrix-primary);
    border-color: var(--matrix-border-dim);
    --bs-table-bg: transparent;
    --bs-table-color: var(--matrix-primary);
}

.table thead {
    background-color: rgba(0, 255, 65, 0.1);
}

.table thead th {
    color: var(--matrix-primary);
    border-bottom-color: var(--matrix-border);
}

.table tbody tr {
    border-color: var(--matrix-border-dim);
}

.table tbody tr:hover {
    background-color: rgba(0, 255, 65, 0.05);
    color: var(--matrix-primary);
    --bs-table-hover-bg: rgba(0, 255, 65, 0.05);
    --bs-table-hover-color: var(--matrix-primary);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 255, 65, 0.03);
    --bs-table-striped-bg: rgba(0, 255, 65, 0.03);
    --bs-table-striped-color: var(--matrix-primary);
}

.table td,
.table th {
    border-color: var(--matrix-border-dim);
}

/* --------------------------------------------------------------------------
   19. Badges
   -------------------------------------------------------------------------- */
.badge.bg-primary,
.badge.bg-success {
    background-color: var(--matrix-primary) !important;
    color: var(--matrix-bg);
}

.badge.bg-danger {
    background-color: var(--matrix-danger) !important;
    color: #fff;
}

.badge.bg-secondary {
    background-color: var(--matrix-dark) !important;
    color: var(--matrix-bg);
}

.badge.bg-warning {
    background-color: #ffc800 !important;
    color: var(--matrix-bg);
}

.badge.bg-info {
    background-color: #00c8ff !important;
    color: var(--matrix-bg);
}

/* --------------------------------------------------------------------------
   20. Pagination
   -------------------------------------------------------------------------- */
.page-link {
    background-color: transparent;
    border-color: var(--matrix-border);
    color: var(--matrix-primary);
    font-family: var(--matrix-font);
}

.page-link:hover {
    background-color: rgba(0, 255, 65, 0.1);
    border-color: var(--matrix-border);
    color: var(--matrix-bright);
}

.page-item.active .page-link {
    background-color: var(--matrix-primary);
    border-color: var(--matrix-primary);
    color: var(--matrix-bg);
}

.page-item.disabled .page-link {
    background-color: transparent;
    border-color: rgba(0, 255, 65, 0.15);
    color: var(--matrix-dim);
}

/* --------------------------------------------------------------------------
   21. Dropdown
   -------------------------------------------------------------------------- */
.dropdown-menu {
    background-color: var(--matrix-bg);
    border: 1px solid var(--matrix-border);
}

.dropdown-item {
    color: var(--matrix-primary);
    font-family: var(--matrix-font);
}

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: rgba(0, 255, 65, 0.1);
    color: var(--matrix-bright);
}

.dropdown-item.active,
.dropdown-item:active {
    background-color: rgba(0, 255, 65, 0.2);
    color: var(--matrix-primary);
}

.dropdown-divider {
    border-color: var(--matrix-border-dim);
}

/* --------------------------------------------------------------------------
   22. Jumbotron (Bootstrap 5 custom replacement)
   -------------------------------------------------------------------------- */
.jumbotron {
    padding: 2rem 1rem;
    margin-bottom: 2rem;
    background-color: var(--matrix-card-bg);
    border: 1px solid var(--matrix-border);
    border-radius: 0.3rem;
    color: var(--matrix-primary);
}

@media (min-width: 576px) {
    .jumbotron {
        padding: 4rem 2rem;
    }
}

/* --------------------------------------------------------------------------
   23. Footer
   -------------------------------------------------------------------------- */
.footer {
    background-color: var(--matrix-footer-bg);
    border-top: 1px solid var(--matrix-border-dim);
    color: var(--matrix-dark);
    margin-top: auto;
}

.footer > .container {
    padding-right: 15px;
    padding-left: 15px;
}

.footer a {
    color: var(--matrix-primary);
}

.footer a:hover {
    color: var(--matrix-bright);
}

/* --------------------------------------------------------------------------
   24. Code & Pre
   -------------------------------------------------------------------------- */
code {
    font-family: var(--matrix-font);
    font-size: 80%;
    color: var(--matrix-primary);
    background-color: rgba(0, 255, 65, 0.05);
}

pre {
    font-family: var(--matrix-font);
    color: var(--matrix-primary);
    background-color: rgba(0, 255, 65, 0.05);
    border: 1px solid var(--matrix-border-dim);
    padding: 1rem;
    border-radius: 0.25rem;
}

pre code {
    background-color: transparent;
    font-size: inherit;
}

/* --------------------------------------------------------------------------
   25. Matrix Rain Canvas
   -------------------------------------------------------------------------- */
#matrix-rain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* --------------------------------------------------------------------------
   26. Text Utilities
   -------------------------------------------------------------------------- */
.text-muted {
    color: var(--matrix-dark) !important;
}

/* --------------------------------------------------------------------------
   27. Alerts
   -------------------------------------------------------------------------- */
.alert-success {
    background-color: rgba(0, 255, 65, 0.1);
    border-color: var(--matrix-border);
    color: var(--matrix-primary);
}

.alert-danger {
    background-color: rgba(255, 0, 64, 0.1);
    border-color: rgba(255, 0, 64, 0.3);
    color: var(--matrix-danger);
}

.alert-warning {
    background-color: rgba(255, 200, 0, 0.1);
    border-color: rgba(255, 200, 0, 0.3);
    color: #ffc800;
}

.alert-info {
    background-color: rgba(0, 200, 255, 0.1);
    border-color: rgba(0, 200, 255, 0.3);
    color: #00c8ff;
}

.alert a {
    color: inherit;
    text-decoration: underline;
}

/* --------------------------------------------------------------------------
   28. Tooltips & Popovers
   -------------------------------------------------------------------------- */
.tooltip-inner {
    background-color: var(--matrix-surface);
    color: var(--matrix-primary);
    border: 1px solid var(--matrix-border);
    font-family: var(--matrix-font);
}

.tooltip .tooltip-arrow::before {
    border-top-color: var(--matrix-surface);
}

.popover {
    background-color: var(--matrix-bg);
    border: 1px solid var(--matrix-border);
}

.popover-header {
    background-color: rgba(0, 255, 65, 0.08);
    border-bottom-color: var(--matrix-border-dim);
    color: var(--matrix-primary);
}

.popover-body {
    color: var(--matrix-primary);
}

/* --------------------------------------------------------------------------
   29. Breadcrumbs
   -------------------------------------------------------------------------- */
.breadcrumb {
    background-color: transparent;
}

.breadcrumb-item a {
    color: var(--matrix-primary);
}

.breadcrumb-item.active {
    color: var(--matrix-dark);
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--matrix-dim);
}

/* --------------------------------------------------------------------------
   30. List Groups
   -------------------------------------------------------------------------- */
.list-group-item {
    background-color: var(--matrix-card-bg);
    border-color: var(--matrix-border);
    color: var(--matrix-primary);
}

.list-group-item:hover {
    background-color: rgba(0, 255, 65, 0.08);
}

.list-group-item.active {
    background-color: var(--matrix-primary);
    border-color: var(--matrix-primary);
    color: var(--matrix-bg);
}

/* --------------------------------------------------------------------------
   31. Accordion
   -------------------------------------------------------------------------- */
.accordion-item {
    background-color: var(--matrix-card-bg);
    border-color: var(--matrix-border);
    color: var(--matrix-primary);
}

.accordion-button {
    background-color: rgba(0, 255, 65, 0.05);
    color: var(--matrix-primary);
}

.accordion-button:not(.collapsed) {
    background-color: rgba(0, 255, 65, 0.1);
    color: var(--matrix-primary);
    box-shadow: inset 0 calc(-1 * var(--bs-accordion-border-width)) 0 var(--matrix-border);
}

.accordion-button:focus {
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
}

/* --------------------------------------------------------------------------
   32. Progress Bars
   -------------------------------------------------------------------------- */
.progress {
    background-color: rgba(0, 255, 65, 0.1);
    border-radius: 0.25rem;
}

.progress-bar {
    background-color: var(--matrix-primary);
}

/* --------------------------------------------------------------------------
   33. Utility Classes
   -------------------------------------------------------------------------- */
.matrix-glow {
    text-shadow:
        0 0 10px rgba(0, 255, 65, 0.5),
        0 0 20px rgba(0, 255, 65, 0.3),
        0 0 30px rgba(0, 255, 65, 0.1);
}

.neon-text {
    color: #fff;
    text-shadow:
        0 0 7px #00ff41,
        0 0 10px #00ff41,
        0 0 21px #00ff41,
        0 0 42px #0fa,
        0 0 82px #0fa;
}

/* --------------------------------------------------------------------------
   34. Misc Bootstrap Overrides
   -------------------------------------------------------------------------- */
.bg-light {
    background-color: var(--matrix-surface) !important;
}

.bg-dark {
    background-color: var(--matrix-bg) !important;
}

.text-dark {
    color: var(--matrix-primary) !important;
}

.text-body {
    color: var(--matrix-primary) !important;
}

.border {
    border-color: var(--matrix-border) !important;
}

.shadow {
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.1) !important;
}

/* --------------------------------------------------------------------------
   35. Toast
   -------------------------------------------------------------------------- */
.toast {
    background-color: var(--matrix-surface);
    border-color: var(--matrix-border);
    color: var(--matrix-primary);
}

.toast-header {
    background-color: rgba(0, 255, 65, 0.08);
    border-bottom-color: var(--matrix-border-dim);
    color: var(--matrix-primary);
}

/* --------------------------------------------------------------------------
   36. Spinners
   -------------------------------------------------------------------------- */
.spinner-border {
    color: var(--matrix-primary);
}

.spinner-grow {
    color: var(--matrix-primary);
}

/* --------------------------------------------------------------------------
   37. Theme Toggle
   -------------------------------------------------------------------------- */
/* --------------------------------------------------------------------------
   37. QR Code Reveal Effect
   -------------------------------------------------------------------------- */
@keyframes qrScanline {
    0%   { top: 0; }
    100% { top: 100%; }
}

@keyframes qrReveal {
    0%   { clip-path: inset(0 0 100% 0); }
    100% { clip-path: inset(0 0 0 0); }
}

@keyframes qrGlowPulse {
    0%, 100% { box-shadow: 0 0 8px var(--matrix-glow); }
    50%      { box-shadow: 0 0 20px var(--matrix-glow), 0 0 40px rgba(0, 255, 65, 0.2); }
}

.qr-container {
    display: inline-block;
    position: relative;
    padding: 12px;
    margin: 16px auto;
    border: 1px solid var(--matrix-border);
    background: var(--matrix-input-bg);
    overflow: hidden;
}

.qr-container.qr-animating {
    animation: qrGlowPulse 1.5s ease-in-out;
}

/* Scanline sweep */
.qr-container.qr-animating::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 2px;
    background: var(--matrix-primary);
    box-shadow: 0 0 8px var(--matrix-primary), 0 0 20px var(--matrix-glow);
    animation: qrScanline 0.8s linear forwards;
    z-index: 2;
}

.qr-container img {
    display: block;
    max-width: 100%;
    height: auto;
    animation: qrReveal 0.8s linear forwards;
}

.qr-decode-text {
    font-family: var(--matrix-font);
    color: var(--matrix-primary);
    font-size: 0.85rem;
    margin-top: 8px;
    letter-spacing: 2px;
}

/* --------------------------------------------------------------------------
   38. Analytics Panel
   -------------------------------------------------------------------------- */
@keyframes analyticsFlicker {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.3; }
}

.analytics-panel {
    padding: 16px;
    border-top: 1px solid var(--matrix-border-dim);
}

.analytics-loading-text {
    font-family: var(--matrix-font);
    color: var(--matrix-primary);
    font-size: 0.85rem;
    letter-spacing: 3px;
    animation: analyticsFlicker 0.8s infinite;
}

.analytics-charts {
    animation: qrReveal 0.4s ease-out forwards;
}

.analytics-chart-title {
    font-family: var(--matrix-font);
    color: var(--matrix-primary);
    font-size: 0.8rem;
    letter-spacing: 2px;
    margin-bottom: 8px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--matrix-border-dim);
}

/* --------------------------------------------------------------------------
   39. Theme Toggle
   -------------------------------------------------------------------------- */
.theme-toggle {
    background: transparent;
    border: 1px solid var(--matrix-border);
    color: var(--matrix-primary);
    font-family: var(--matrix-font);
    font-size: 0.85rem;
    padding: 0.25rem 0.6rem;
    cursor: pointer;
    transition: box-shadow 0.2s, border-color 0.2s;
}

.theme-toggle:hover {
    border-color: var(--matrix-primary);
    box-shadow: 0 0 8px var(--matrix-glow);
}