/**
 * Dark Mode & Reading Preferences
 * TCB — The Conservative Bugler
 *
 * Dark scheme: deep navy/charcoal backgrounds with warm amber accents
 * for comfortable nighttime reading.
 */

/* ===========================
   DARK THEME VARIABLES
   =========================== */
html.dark {
    --tcb-bg:            #121928;
    --tcb-bg-surface:    #1a2336;
    --tcb-bg-card:       #1e2840;
    --tcb-bg-hover:       #232e47;
    --tcb-border:        #2a3448;
    --tcb-border-light:  #222d40;
    --tcb-text-primary:   #e8edf5;
    --tcb-text-secondary: #8a9bb8;
    --tcb-text-muted:     #5a6a80;
    --tcb-text-invert:    #0D1B2A;

    /* Keep brand colors intact */
    --tcb-navy:    #0D1B2A;
    --tcb-red:     #C41E3A;
    --tcb-gold:    #F4B942;
}

/* ===========================
   BASE DARK OVERRIDES
   =========================== */
html.dark body {
    background: var(--tcb-bg);
    color: var(--tcb-text-primary);
}

/* ===========================
   NAV (all pages)
   =========================== */
html.dark nav {
    background: rgba(18, 25, 40, 0.97);
    border-bottom-color: var(--tcb-border);
}

html.dark .nav-name,
html.dark .nav-tag {
    color: var(--tcb-text-primary);
}

html.dark .nav-icon {
    background: var(--tcb-red);
}

html.dark .nav-refresh {
    border-color: var(--tcb-border);
    color: var(--tcb-text-secondary);
}

html.dark .nav-refresh:hover {
    background: var(--tcb-bg-hover);
    border-color: var(--tcb-text-muted);
}

html.dark .nav-opinion-link {
    color: var(--tcb-red);
    border-color: var(--tcb-red);
}

html.dark .nav-opinion-link:hover {
    background: var(--tcb-red);
    color: white;
}

html.dark .nav-bookmark-btn {
    border-color: var(--tcb-border);
    color: var(--tcb-text-secondary);
}

html.dark .nav-bookmark-btn:hover {
    background: var(--tcb-bg-hover);
    border-color: var(--tcb-text-muted);
    color: var(--tcb-red);
}

html.dark .nav-stats,
html.dark .nav-stat {
    color: var(--tcb-text-muted);
}

html.dark .nav-stat strong {
    color: var(--tcb-text-secondary);
}

/* ===========================
   THEME SWITCHER BUTTON
   =========================== */
html.dark .theme-btn {
    color: var(--tcb-text-secondary);
    border-color: var(--tcb-border);
}

html.dark .theme-btn:hover {
    background: var(--tcb-bg-hover);
    border-color: var(--tcb-text-muted);
    color: var(--tcb-text-primary);
}

/* Theme dropdown */
.theme-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--tcb-bg-card, #1e2840);
    border: 1px solid var(--tcb-border, #2a3448);
    border-radius: 12px;
    padding: 6px;
    min-width: 160px;
    z-index: 200;
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
    display: none;
    flex-direction: column;
    gap: 2px;
}

.theme-dropdown.open {
    display: flex;
}

/* Theme dropdown dark variant */
html.dark .theme-dropdown {
    background: #1e2840;
    border-color: #2a3448;
}

.theme-dropdown-header {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--tcb-text-muted, #5a6a80);
    padding: 4px 10px 6px;
}

html.dark .theme-dropdown-header {
    color: #5a6a80;
}

.theme-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 8px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 500;
    font-family: 'DM Sans', sans-serif;
    color: var(--gray-700, #3A4556);
    width: 100%;
    text-align: left;
    transition: background 0.15s ease, color 0.15s ease;
}

.theme-option:hover {
    background: var(--gray-100, #F1F3F5);
}

html.dark .theme-option:hover {
    background: #232e47;
}

.theme-option.active {
    color: var(--tcb-red, #C41E3A);
    font-weight: 700;
}

html.dark .theme-option.active {
    color: #E8324A;
}

.theme-option .option-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.theme-divider {
    height: 1px;
    background: var(--tcb-border, #E2E6EA);
    margin: 4px 0;
}

html.dark .theme-divider {
    background: #2a3448;
}

/* ===========================
   FEED / INDEX PAGE
   =========================== */

/* Search section */
html.dark .search-section {
    background: #1a2336;
    border-bottom-color: #2a3448;
}

html.dark .search-input {
    background: #121928;
    border-color: #2a3448;
    color: #e8edf5;
}

html.dark .search-input::placeholder {
    color: #5a6a80;
}

html.dark .search-input:focus {
    border-color: var(--tcb-red, #C41E3A);
}

/* Source filter bar */
html.dark .filter-bar {
    background: #1a2336;
    border-bottom-color: #2a3448;
}

html.dark .filter-chip {
    border-color: #2a3448;
    background: #1a2336;
    color: #8a9bb8;
}

html.dark .filter-chip:hover {
    border-color: #5a6a80;
    background: #232e47;
}

html.dark .filter-chip.active {
    background: #0D1B2A;
    color: white;
    border-color: #0D1B2A;
}

/* Search header */
html.dark .search-header {
    background: #1a2336;
    border-color: #2a3448;
    color: #8a9bb8;
}

html.dark .search-header strong {
    color: #e8edf5;
}

/* Search clear button */
html.dark .search-clear {
    color: #5a6a80;
}

/* Search clear hover */
html.dark .search-clear:hover {
    color: #E8324A;
}

/* Highlight (search match) */
html.dark .highlight {
    background: linear-gradient(120deg, rgba(196,30,58,0.3) 0%, rgba(196,30,58,0.45) 100%);
    color: #e8edf5;
}

/* ===========================
   ARTICLE CARDS
   =========================== */
html.dark .article-card {
    background: #1e2840;
    border-color: #2a3448;
}

html.dark .article-card:hover {
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

html.dark .card-title {
    color: #e8edf5;
}

html.dark .card-excerpt {
    color: #8a9bb8;
}

html.dark .card-meta {
    color: #5a6a80;
}

html.dark .card-image-wrap {
    background: #232e47;
}

/* Placeholder initials */
html.dark .card-image-placeholder {
    border: 1px solid #2a3448;
}

/* Bookmark button on cards */
html.dark .bookmark-btn {
    background: rgba(26, 35, 54, 0.92);
    color: #5a6a80;
}

html.dark .bookmark-btn:hover {
    background: #1a2336;
    color: var(--tcb-red, #C41E3A);
}

html.dark .bookmark-btn.bookmarked {
    background: var(--tcb-red, #C41E3A);
    color: white;
}

/* ===========================
   SKELETON LOADING
   =========================== */
html.dark .skeleton-card {
    background: #1e2840;
    border-color: #2a3448;
}

html.dark .skeleton-image {
    background: linear-gradient(90deg, #232e47 25%, #2a3448 50%, #232e47 75%);
    background-size: 200% 100%;
}

html.dark .skeleton-line {
    background: linear-gradient(90deg, #232e47 25%, #2a3448 50%, #232e47 75%);
    background-size: 200% 100%;
}

html.dark .spinner {
    border-color: #2a3448;
    border-top-color: var(--tcb-red, #C41E3A);
}

/* ===========================
   LOAD MORE / EMPTY STATE
   =========================== */
html.dark .load-more-btn {
    border-color: #2a3448;
    background: #1e2840;
    color: #8a9bb8;
}

html.dark .load-more-btn:hover {
    background: #0D1B2A;
    color: white;
    border-color: #0D1B2A;
}

html.dark .empty-state h2 {
    color: #e8edf5;
}

html.dark .empty-state p {
    color: #5a6a80;
}

/* ===========================
   OPINION STRIP (home/feed)
   =========================== */
html.dark .opinion-strip {
    background: #0a1020;
    border-bottom-color: #1a2336;
}

/* Opinion cards already have dark backgrounds - keep them but adjust text */
html.dark .opinion-card {
    background: rgba(255,255,255,0.04);
    border-color: rgba(255,255,255,0.08);
}

html.dark .opinion-card-title {
    color: #e8edf5;
}

html.dark .opinion-card-meta {
    color: rgba(138,155,184,0.7);
}

html.dark .opinion-strip-label,
html.dark .opinion-card-read {
    color: #F4B942;
}

/* ===========================
   SAVED PAGE
   =========================== */
html.dark .saved-empty h2,
html.dark .saved-empty p {
    color: var(--tcb-text-primary);
}

html.dark .saved-delete-all {
    border-color: #2a3448;
    color: #8a9bb8;
}

html.dark .saved-delete-all:hover {
    background: #2a1010;
    border-color: #C41E3A;
    color: #C41E3A;
}

/* ===========================
   OPINION PAGE
   =========================== */
html.dark .opinion-page-hero {
    background: #121928;
}

html.dark .opinion-page-hero h1 {
    color: #e8edf5;
}

html.dark .opinion-page-hero p {
    color: #8a9bb8;
}

html.dark .editorial-article {
    border-bottom-color: #2a3448;
}

html.dark .editorial-title {
    color: #e8edf5;
}

html.dark .editorial-meta {
    color: #5a6a80;
}

html.dark .editorial-excerpt {
    color: #8a9bb8;
}

/* ===========================
   COMPACT DENSITY MODE
   =========================== */

/* Compact: smaller card spacing, tighter padding */
html.dense .card-grid {
    gap: 12px;
}

html.dense .article-card .card-content {
    padding: 12px 14px 14px;
}

html.dense .article-card .card-title {
    font-size: 0.9rem;
    -webkit-line-clamp: 2;
}

html.dense .article-card .card-excerpt {
    display: none;
}

html.dense .card-image-wrap {
    height: 140px;
}

html.dense .article-card:first-child .card-image-wrap {
    height: 200px;
}

html.dense .article-card:first-child .card-title {
    font-size: 1.05rem;
}

html.dense .feed-container {
    padding: 16px 1.5rem 40px;
}

/* Dense + dark mode */
html.dark.dense .article-card {
    background: #1e2840;
    border-color: #2a3448;
}

html.dark.dense .card-title {
    color: #e8edf5;
}

html.dark.dense .card-excerpt {
    color: #8a9bb8;
}

html.dark.dense .card-meta {
    color: #5a6a80;
}

/* ===========================
   LANDING PAGE (index.html)
   =========================== */
html.dark .hero {
    background: var(--tcb-bg, #121928);
}

html.dark .hero-text h1 {
    color: var(--tcb-text-primary, #e8edf5);
}

html.dark .hero-text p {
    color: var(--tcb-text-secondary, #8a9bb8);
}

html.dark .hero-badge {
    background: rgba(196,30,58,0.15);
    color: #E8324A;
}

html.dark .mock-card {
    background: #1e2840;
    border-color: #2a3448;
}

html.dark .mock-card .card-source {
    color: #E8324A;
}

html.dark .mock-card .card-title {
    color: #e8edf5;
}

html.dark .mock-card .card-meta {
    color: #5a6a80;
}

html.dark .section-line {
    border-color: #2a3448;
}

html.dark .problem-section h2 {
    color: var(--tcb-text-primary, #e8edf5);
}

html.dark .problem-section p {
    color: var(--tcb-text-secondary, #8a9bb8);
}

html.dark .sources-section {
    background: #0a1020;
}

html.dark .feature-card {
    background: #1e2840;
    border-color: #2a3448;
}

html.dark .feature-card h3 {
    color: var(--tcb-text-primary, #e8edf5);
}

html.dark .feature-card p {
    color: var(--tcb-text-secondary, #8a9bb8);
}

html.dark .how-section {
    background: #121928;
}

html.dark .how-step h4 {
    color: var(--tcb-text-primary, #e8edf5);
}

html.dark .how-step p {
    color: var(--tcb-text-secondary, #8a9bb8);
}

html.dark .closing h2 {
    color: var(--tcb-text-primary, #e8edf5);
}

html.dark .closing p {
    color: var(--tcb-text-secondary, #8a9bb8);
}

html.dark footer {
    background: #0a1020;
}

html.dark .cta-btn {
    background: var(--tcb-red, #C41E3A);
    color: white;
}

/* ===========================
   FOOTER
   =========================== */
html.dark .footer-sub {
    color: #5a6a80;
}

html.dark .footer-legal p {
    color: #3a4560;
}