/* ============================================================
   CodeGround Design System
   Professional / Institutional tone — Bootstrap 5.2.2 layer
   ============================================================ */

/* ----------------------------------------------------------
   Color tokens
   ---------------------------------------------------------- */
:root {
    --color-primary:       #0F2D52;
    --color-primary-hover: #1A4880;
    --color-accent:        #0AB5A0;
    --color-accent-light:  #E6FAF8;
    --color-success:       #059669;
    --color-warning:       #D97706;
    --color-danger:        #DC2626;
    --color-surface:       #FFFFFF;
    --color-bg:            #F1F5F9;
    --color-border:        #E2E8F0;
    --color-text:          #1E293B;
    --color-text-muted:    #64748B;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
    --font-size-base: 15px;
    --line-height-base: 1.6;

    /* Layout */
    --radius:    8px;
    --radius-sm: 4px;
    --shadow-sm:    0 1px 3px rgba(15, 45, 82, 0.08);
    --shadow-md:    0 4px 12px rgba(15, 45, 82, 0.12);
    --shadow-hover: 0 8px 24px rgba(15, 45, 82, 0.16);
}

/* Override Bootstrap 5 CSS variables so .text-primary, .bg-primary,
   .border-primary, focus rings etc. all use our design tokens */
:root {
    --bs-primary:           #0F2D52;
    --bs-primary-rgb:       15, 45, 82;
    --bs-success:           #059669;
    --bs-success-rgb:       5, 150, 105;
    --bs-warning:           #D97706;
    --bs-warning-rgb:       217, 119, 6;
    --bs-danger:            #DC2626;
    --bs-danger-rgb:        220, 38, 38;
    --bs-link-color:        #0F2D52;
    --bs-link-hover-color:  #1A4880;
}

/* ----------------------------------------------------------
   Base
   ---------------------------------------------------------- */
body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-bg);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--color-primary);
    font-weight: 600;
}

code, pre, kbd, samp {
    font-family: var(--font-mono);
}

/* ----------------------------------------------------------
   Navbar
   ---------------------------------------------------------- */
.navbar-cg {
    background-color: var(--color-primary) !important;
}

.navbar-cg .navbar-brand {
    color: #FFFFFF;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.navbar-cg .navbar-brand:hover {
    color: var(--color-accent);
}

.navbar-cg .nav-link {
    color: rgba(255, 255, 255, 0.82);
    padding: 0.5rem 0.75rem;
    border-bottom: 2px solid transparent;
    transition: color 0.15s, border-color 0.15s;
}

.navbar-cg .nav-link:hover,
.navbar-cg .nav-link:focus {
    color: #FFFFFF;
    border-bottom-color: var(--color-accent);
}

.navbar-cg .nav-link.active {
    color: #FFFFFF;
    border-bottom-color: var(--color-accent);
}

.navbar-cg .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.3);
}

.navbar-cg .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* User dropdown in navbar */
.navbar-cg .dropdown-toggle {
    color: rgba(255, 255, 255, 0.82);
    border-bottom: 2px solid transparent;
    transition: color 0.15s, border-color 0.15s;
}

.navbar-cg .dropdown-toggle:hover,
.navbar-cg .dropdown-toggle.show {
    color: #FFFFFF;
    border-bottom-color: var(--color-accent);
}

.navbar-cg .dropdown-toggle::after {
    vertical-align: 0.15em;
}

.navbar-cg .dropdown-menu {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    min-width: 180px;
}

.navbar-cg .dropdown-item {
    color: var(--color-text);
    font-size: 14px;
    padding: 0.45rem 1rem;
}

.navbar-cg .dropdown-item:hover {
    background-color: var(--color-accent-light);
    color: var(--color-primary);
}

.navbar-cg .dropdown-item.text-danger:hover {
    background-color: #FEF2F2;
    color: var(--color-danger);
}

/* ----------------------------------------------------------
   Cards
   ---------------------------------------------------------- */
.card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    background-color: var(--color-surface);
}

.card:hover {
    box-shadow: var(--shadow-hover);
    transition: box-shadow 0.2s ease;
}

/* Stack-line signature element: teal left-border on interactive cards */
.card-stack {
    border-left: 3px solid var(--color-accent);
}

.card-stack:hover {
    border-left-color: var(--color-primary);
}

/* ----------------------------------------------------------
   Buttons
   ---------------------------------------------------------- */
.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #FFFFFF;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: #FFFFFF;
}

.btn-primary:active {
    background-color: var(--color-primary);
}

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

.btn-outline-primary:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #FFFFFF;
}

.btn-success {
    background-color: var(--color-success);
    border-color: var(--color-success);
}

.btn-success:hover {
    background-color: #047857;
    border-color: #047857;
}

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

/* ----------------------------------------------------------
   Badges
   ---------------------------------------------------------- */
.badge {
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.badge.bg-primary {
    background-color: var(--color-primary) !important;
}

.badge.bg-success {
    background-color: var(--color-success) !important;
}

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

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

/* ----------------------------------------------------------
   Progress bars
   ---------------------------------------------------------- */
.progress-bar {
    background-color: var(--color-accent);
}

/* ----------------------------------------------------------
   Tables
   ---------------------------------------------------------- */
.table {
    color: var(--color-text);
}

.table thead th {
    color: var(--color-text-muted);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--color-border);
}

/* ----------------------------------------------------------
   Alerts / Toasts
   ---------------------------------------------------------- */
.alert {
    border-radius: var(--radius);
    border: 1px solid transparent;
}

/* ----------------------------------------------------------
   Hero section
   ---------------------------------------------------------- */
.hero-section {
    background-color: var(--color-primary);
    color: #FFFFFF;
}

.hero-eyebrow {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #FFFFFF;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.78);
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 768px) {
    .hero-title { font-size: 3rem; }
}

/* Accent CTA button (for use on dark hero backgrounds) */
.btn-accent {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: #FFFFFF;
    font-weight: 600;
}

.btn-accent:hover,
.btn-accent:focus {
    background-color: #089b89;
    border-color: #089b89;
    color: #FFFFFF;
}

/* Accent icon color */
.text-accent {
    color: var(--color-accent) !important;
}

/* ----------------------------------------------------------
   Section accent (stack-line on headings)
   ---------------------------------------------------------- */
.section-heading {
    padding-left: 0.75rem;
    border-left: 3px solid var(--color-accent);
    margin-bottom: 1.5rem;
}

/* ----------------------------------------------------------
   Lab detail page
   ---------------------------------------------------------- */
.lab-detail-title {
    font-size: 1.6rem;
}

/* ----------------------------------------------------------
   Text utilities
   ---------------------------------------------------------- */
.text-muted {
    color: var(--color-text-muted) !important;
}

/* ----------------------------------------------------------
   Auth pages (login, OAuth confirmation)
   ---------------------------------------------------------- */
.auth-wrapper {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 2.25rem 2rem;
}

.auth-brand {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    display: block;
    text-align: center;
    margin-bottom: 0.25rem;
}

.auth-brand:hover {
    color: var(--color-primary-hover);
}

.auth-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 0.25rem;
}

.auth-subtitle {
    font-size: 14px;
    color: var(--color-text-muted);
    text-align: center;
    margin-bottom: 1.75rem;
}

/* OAuth provider buttons */
.btn-oauth {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 11px 16px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 14px;
    border: 1px solid transparent;
    transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
    text-decoration: none;
    cursor: pointer;
    margin-bottom: 0.75rem;
}

.btn-oauth:last-child {
    margin-bottom: 0;
}

.btn-oauth-github {
    background: #24292E;
    color: #FFFFFF;
    border-color: #24292E;
}

.btn-oauth-github:hover {
    background: #1a1e22;
    color: #FFFFFF;
    box-shadow: var(--shadow-sm);
}

.btn-oauth-google {
    background: #FFFFFF;
    color: #3C4043;
    border-color: #DADCE0;
}

.btn-oauth-google:hover {
    background: #F8F9FA;
    border-color: #C6CAD0;
    color: #3C4043;
    box-shadow: var(--shadow-sm);
}

.btn-oauth-default {
    background: var(--color-primary);
    color: #FFFFFF;
    border-color: var(--color-primary);
}

.btn-oauth-default:hover {
    background: var(--color-primary-hover);
    color: #FFFFFF;
}

/* Auth divider */
.auth-divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1.25rem 0;
    color: var(--color-text-muted);
    font-size: 13px;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

/* Auth form fields */
.auth-field label {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.auth-field .form-control {
    border-color: var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    padding: 0.6rem 0.75rem;
}

.auth-field .form-control:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(10, 181, 160, 0.15);
}

/* Auth confirmation (OAuth redirect page) */
.auth-redirect-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* ----------------------------------------------------------
   How It Works section (homepage)
   ---------------------------------------------------------- */

.howto-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    height: 100%;
    transition: box-shadow 0.2s ease;
}

.howto-card:hover {
    box-shadow: var(--shadow-hover);
}

/* Browser chrome wrapper */
.howto-frame {
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
}

.howto-browser-bar {
    background: #e8e9ea;
    padding: 7px 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    border-bottom: 1px solid #d1d3d5;
    flex-shrink: 0;
}

.howto-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.howto-url {
    flex: 1;
    background: #fff;
    border-radius: 4px;
    padding: 2px 10px;
    font-size: 11px;
    color: #666;
    border: 1px solid #d1d3d5;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: var(--font-mono);
}

.howto-img {
    width: 100%;
    display: block;
    height: 220px;
    object-fit: cover;
    object-position: top left;
}

/* Step label + text */
.howto-body {
    padding: 1.25rem 1.25rem 1.5rem;
}

.howto-step-badge {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--color-accent);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
}

.howto-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.35rem;
}

.howto-desc {
    font-size: 14px;
    color: var(--color-text-muted);
    margin: 0;
    line-height: 1.55;
}

/* CSS terminal mockup (step 4) */
.howto-terminal {
    background: #1e1e1e;
    height: 220px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.howto-terminal-nav {
    background: #212529;
    padding: 6px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    color: #adb5bd;
    flex-shrink: 0;
    border-bottom: 1px solid #333;
    font-family: var(--font-mono);
}

.howto-terminal-body {
    padding: 12px 16px;
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: #d4d4d4;
    line-height: 1.75;
    flex: 1;
}

.howto-prompt {
    color: var(--color-accent);
    font-weight: 600;
    user-select: none;
}

.howto-cmd {
    color: #e2e8f0;
}

.howto-output {
    color: #8b9db5;
    display: block;
    padding-left: 0;
}

.howto-cursor {
    display: inline-block;
    width: 7px;
    height: 13px;
    background: var(--color-accent);
    vertical-align: text-bottom;
    animation: howto-blink 1.1s step-end infinite;
}

@keyframes howto-blink {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0; }
}

/* ----------------------------------------------------------
   My Playgrounds page
   ---------------------------------------------------------- */

/* Slot usage bar */
.pg-slot-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-sm);
}

.pg-slot-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 0.35rem;
}

.pg-slot-bar {
    height: 6px;
    background: var(--color-border);
    border-radius: 3px;
    overflow: hidden;
}

.pg-slot-bar-fill {
    height: 100%;
    border-radius: 3px;
    background: var(--color-accent);
    transition: width 0.4s ease, background 0.4s ease;
}

/* Playground cards */
.pg-card {
    transition: box-shadow 0.2s ease, transform 0.15s ease;
}

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

.pg-card-running {
    border-left: 3px solid var(--color-accent) !important;
}

.pg-card-stopped {
    border-left: 3px solid var(--color-border) !important;
    opacity: 0.88;
}

.pg-card-stopped:hover {
    opacity: 1;
}

/* Status pill */
.pg-status-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 3px 8px;
    border-radius: 99px;
}

.pg-status-running {
    background: rgba(5, 150, 105, 0.1);
    color: var(--color-success);
}

.pg-status-stopped {
    background: var(--color-bg);
    color: var(--color-text-muted);
}

.pg-status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
    background: currentColor;
}

.pg-status-running .pg-status-dot {
    animation: pg-pulse 2s infinite;
    box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.2);
}

@keyframes pg-pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.55; }
}

/* Resource icon (rounded logo on each card) */
.pg-resource-icon {
    width: 44px;
    height: 44px;
    object-fit: contain;
    background: #fff;
    border: 1px solid var(--color-border);
    padding: 5px;
    flex-shrink: 0;
}

/* Playground name link */
.pg-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
}

.pg-name:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

/* Resource meta */
.pg-meta {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-top: 2px;
}

/* Time display */
.pg-time-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
}

.pg-time-bar-track {
    height: 4px;
    background: var(--color-border);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 6px;
}

.pg-time-bar-fill {
    height: 100%;
    border-radius: 2px;
    background: var(--color-success);
    transition: width 0.6s ease, background 0.6s ease;
}

/* Delete button (×) */
.pg-delete-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 1.1rem;
    line-height: 1;
    padding: 2px 4px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    flex-shrink: 0;
    transition: color 0.12s, background 0.12s;
}

.pg-delete-btn:hover {
    color: var(--color-danger);
    background: rgba(220, 38, 38, 0.08);
}

/* Empty state */
.pg-empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--color-surface);
    border: 1.5px dashed var(--color-border);
    border-radius: var(--radius);
}

/* ----------------------------------------------------------
   Playgrounds catalog page  (/playgrounds/)
   ---------------------------------------------------------- */

/* Pill-style tab navigation */
.catalog-tabs .nav-link {
    border: 1px solid var(--color-border);
    border-radius: 99px;
    color: var(--color-text-muted);
    background: var(--color-surface);
    font-size: 13px;
    font-weight: 600;
    padding: 5px 14px;
    transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.catalog-tabs .nav-link:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-bg);
}

.catalog-tabs .nav-link.active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

/* Count badge inside each tab */
.catalog-tab-count {
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 99px;
    margin-left: 3px;
    background: rgba(100, 116, 139, 0.12);
    color: var(--color-text-muted);
    transition: background 0.15s, color 0.15s;
}

.catalog-tabs .nav-link.active .catalog-tab-count {
    background: rgba(255, 255, 255, 0.22);
    color: #fff;
}

/* Resource type badge (teal accent pill) */
.resource-type-badge {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 2px 7px;
    border-radius: var(--radius-sm);
    background: var(--color-accent-light);
    color: var(--color-accent);
}

/* Description — 3-line clamp */
.resource-description {
    font-size: 13.5px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ----------------------------------------------------------
   Footer
   ---------------------------------------------------------- */
.footer-cg {
    background-color: var(--color-primary);
    color: rgba(255, 255, 255, 0.75);
}

.footer-cg a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
}

.footer-cg a:hover {
    color: var(--color-accent);
}

/* ----------------------------------------------------------
   Dark mode
   ---------------------------------------------------------- */
[data-theme="dark"] {
    --color-bg:           #0F172A;
    --color-surface:      #1E293B;
    --color-border:       #334155;
    --color-text:         #E2E8F0;
    --color-text-muted:   #94A3B8;
    --color-accent-light: #0F2D3A;
    --color-primary-hover:#2563EB;
}

[data-theme="dark"] body {
    background-color: var(--color-bg);
    color: var(--color-text);
}

[data-theme="dark"] .card {
    background: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-text);
}

[data-theme="dark"] .card-stack {
    background: var(--color-surface);
}

[data-theme="dark"] .dropdown-menu {
    background: var(--color-surface);
    border-color: var(--color-border);
}

[data-theme="dark"] .dropdown-item {
    color: var(--color-text);
}

[data-theme="dark"] .dropdown-item:hover,
[data-theme="dark"] .dropdown-item:focus {
    background: var(--color-accent-light);
    color: var(--color-text);
}

[data-theme="dark"] .dropdown-divider {
    border-color: var(--color-border);
}

[data-theme="dark"] .text-muted,
[data-theme="dark"] .text-muted * {
    color: var(--color-text-muted) !important;
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-text);
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-accent);
}

[data-theme="dark"] .table {
    color: var(--color-text);
    border-color: var(--color-border);
}

[data-theme="dark"] .table > :not(caption) > * > * {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
}

[data-theme="dark"] .nav-tabs .nav-link {
    color: var(--color-text-muted);
}

[data-theme="dark"] .nav-tabs .nav-link.active {
    background: var(--color-surface);
    border-color: var(--color-border) var(--color-border) var(--color-surface);
    color: var(--color-text);
}

[data-theme="dark"] .tab-content {
    background: var(--color-bg);
}

[data-theme="dark"] .list-group-item {
    background: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-text);
}

[data-theme="dark"] hr {
    border-color: var(--color-border);
}

[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6,
[data-theme="dark"] .section-heading,
[data-theme="dark"] .card-title {
    color: var(--color-text);
}

[data-theme="dark"] .pg-card,
[data-theme="dark"] .pg-card-running,
[data-theme="dark"] .pg-card-stopped {
    background: var(--color-surface);
    color: var(--color-text);
}

[data-theme="dark"] .pg-time-bar-track {
    background: var(--color-border);
}

[data-theme="dark"] .alert-info {
    background: #0F2D3A;
    border-color: #164E63;
    color: #BAE6FD;
}

/* System preference fallback — only applies when no explicit data-theme is set */