/* ============================================================
   TeknoGraf — Professional Engineering-Focused Design System
   ============================================================ */

/* --- Design Tokens --- */
:root {
    --primary:       #0057FF;
    --primary-light: #3B82F6;
    --primary-glow:  rgba(0, 87, 255, 0.15);
    --accent:        #00C2FF;

    --bg-body:       #F4F6FB;
    --bg-nav:        #FFFFFF;
    --bg-card:       #FFFFFF;
    --bg-footer:     #0A0F1E;

    --text-primary:  #0D1117;
    --text-secondary:#4B5563;
    --text-muted:    #9CA3AF;

    --border:        rgba(0, 0, 0, 0.07);
    --shadow-sm:     0 2px 12px rgba(0, 0, 0, 0.06);
    --shadow-md:     0 8px 32px rgba(0, 0, 0, 0.10);
    --shadow-hover:  0 20px 48px rgba(0, 87, 255, 0.12);

    --radius-card:   18px;
    --radius-badge:  8px;
    --nav-h:         68px;

    --transition:    all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Tokens */
[data-theme="dark"] {
    --bg-body:       #060C18;
    --bg-nav:        #080E1E;
    --bg-card:       #111827;
    --bg-footer:     #050912;

    --text-primary:  #F1F5F9;
    --text-secondary:#9CA3AF;
    --text-muted:    #6B7280;

    --border:        rgba(255, 255, 255, 0.06);
    --shadow-sm:     0 2px 12px rgba(0, 0, 0, 0.30);
    --shadow-md:     0 8px 32px rgba(0, 0, 0, 0.40);
    --shadow-hover:  0 20px 48px rgba(0, 87, 255, 0.20);
}

/* --- Base Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    transition: background 0.35s ease, color 0.35s ease;
    min-height: 100vh;
}

a { text-decoration: none; color: inherit; }

/* ============================================================
   NAVBAR
   ============================================================ */
.site-navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-h);
    z-index: 1000;
    background: var(--bg-nav);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.site-navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

.navbar-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 32px;
}

/* Logo */
.navbar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    color: var(--text-primary);
    transition: var(--transition);
}
.navbar-logo:hover { opacity: 0.8; }

.logo-icon {
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    border-radius: 10px;
    overflow: hidden;
    transition: var(--transition);
}

.navbar-logo:hover .logo-icon {
    box-shadow: 0 4px 20px rgba(79, 70, 229, 0.45);
    transform: translateY(-1px);
}

.logo-svg {
    width: 40px;
    height: 40px;
    display: block;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), filter 0.35s ease;
}

/* Gündüz modunda üst menüdeki logoyu mavi (primary) renge çevir */
.site-navbar .logo-svg {
    filter: brightness(0) invert(26%) sepia(89%) saturate(4605%) hue-rotate(219deg) brightness(101%) contrast(104%);
}

/* Gece modunda logoyu tekrar orijinal beyaz rengine döndür */
[data-theme="dark"] .site-navbar .logo-svg {
    filter: none;
}

.navbar-logo:hover .logo-svg {
    transform: scale(1.06);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-accent { color: var(--primary); }

/* Category Nav Links */
.nav-categories {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
}

.nav-cat-link {
    padding: 7px 16px;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
}

.nav-cat-link:hover {
    color: var(--primary);
    background: var(--primary-glow);
}

.nav-cat-link.active {
    color: var(--primary);
    background: var(--primary-glow);
    font-weight: 600;
}

.nav-cat-link::after {
    content: '';
    position: absolute;
    bottom: 2px; left: 50%; right: 50%;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-cat-link.active::after,
.nav-cat-link:hover::after {
    left: 12px; right: 12px;
}

/* Action Icons */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.nav-action-btn {
    width: 38px; height: 38px;
    border-radius: 10px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition);
}

.nav-action-btn:hover {
    background: var(--primary-glow);
    color: var(--primary);
    transform: scale(1.05);
}

/* ============================================================
   NAVBAR INLINE SEARCH BOX
   ============================================================ */
.nav-search-box {
    position: relative;
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
}

/* Mobil arama butonu - sadece mobil cihazlarda göster */
.mobile-search-btn {
    display: none !important;
}

.nav-search-input {
    height: 30px;
    width: 170px;
    padding: 0 28px 0 30px;
    border-radius: 8px;
    border: 1.5px solid var(--border);
    background: var(--bg-body);
    color: var(--text-primary) !important;
    font-family: 'Inter', sans-serif !important;
    font-size: 12.5px !important;
    font-weight: 400 !important;
    line-height: 30px !important;
    text-transform: none !important;
    outline: none;
    transition: width 0.3s cubic-bezier(0.4,0,0.2,1),
                border-color 0.25s ease,
                box-shadow 0.25s ease;
}

.nav-search-input::placeholder {
    color: var(--text-muted) !important;
    font-weight: 400 !important;
    font-size: 12.5px !important;
}

.nav-search-input:focus {
    width: 200px;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.nav-search-box:focus-within .nav-search-icon {
    color: var(--primary);
}

/* Temizle butonu — input içinde sağda, dikey ortalı */
.nav-search-clear {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px; height: 18px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.6rem;
    cursor: pointer;
    display: none;
    align-items: center; justify-content: center;
    transition: background 0.2s ease, color 0.2s ease;
}

.nav-search-clear.visible {
    display: flex;
}

.nav-search-clear:hover {
    background: var(--primary-glow);
    color: var(--primary);
}

/* Mobil arama modu: navbar'da arama kutusunu genişlet */
.site-navbar.mobile-search-active .nav-search-box {
    display: flex !important;
    flex: 1;
    position: absolute;
    left: 12px;
    right: 120px;
    z-index: 100;
}

.site-navbar.mobile-search-active .nav-search-input {
    width: 100% !important;
}

.site-navbar.mobile-search-active .nav-search-input:focus {
    width: 100%;
}

.site-navbar.mobile-search-active .navbar-logo,
.site-navbar.mobile-search-active .nav-categories,
.site-navbar.mobile-search-active .nav-actions,
.site-navbar.mobile-search-active .mobile-menu-btn {
    display: none !important;
}

.site-navbar.mobile-search-active .mobile-search-btn {
    position: absolute;
    right: 12px;
    display: flex !important;
}

/* ============================================================
   ARAMA ETİKETLERİ BAR
   ============================================================ */
.search-tags-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 260px;
    overflow-x: auto;
    overflow-y: hidden;
    flex-shrink: 0;
    padding: 2px 4px;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-light) transparent;
}

.search-tags-bar:empty {
    display: none;
}

/* Webkit scrollbar */
.search-tags-bar::-webkit-scrollbar {
    height: 3px;
}
.search-tags-bar::-webkit-scrollbar-track {
    background: transparent;
}
.search-tags-bar::-webkit-scrollbar-thumb {
    background: var(--primary-light);
    border-radius: 4px;
}

.search-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px 5px 12px;
    background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(56,189,248,0.10));
    border: 1px solid rgba(99,102,241,0.30);
    border-radius: 20px;
    color: var(--primary-light);
    font-size: 0.78rem;
    font-weight: 600;
    white-space: nowrap;
    cursor: default;
    animation: tagSlideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transition: border-color 0.2s ease, background 0.2s ease;
}

.search-tag:hover {
    border-color: rgba(99,102,241,0.55);
    background: linear-gradient(135deg, rgba(99,102,241,0.25), rgba(56,189,248,0.18));
}

.search-tag-icon {
    font-size: 0.65rem;
    opacity: 0.6;
}

.search-tag-text {
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-tag-close {
    width: 18px; height: 18px;
    border-radius: 50%;
    border: none;
    background: rgba(255,255,255,0.08);
    color: var(--primary-light);
    font-size: 0.6rem;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s ease, color 0.2s ease, transform 0.15s ease;
    flex-shrink: 0;
}

.search-tag-close:hover {
    background: var(--primary);
    color: white;
    transform: scale(1.15);
}

@keyframes tagSlideIn {
    from { opacity: 0; transform: translateX(-8px) scale(0.92); }
    to   { opacity: 1; transform: translateX(0) scale(1); }
}

/* Mobile */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    border: none;
    background: transparent;
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
    transition: var(--transition);
    margin-left: auto;
}

.mobile-menu-btn span {
    display: block;
    width: 22px; height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-drawer {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--bg-nav);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    flex-direction: column;
    gap: 4px;
    z-index: 999;
    box-shadow: var(--shadow-md);
}

.mobile-drawer.open { display: flex; }

/* ============================================================
   SEARCH OVERLAY
   ============================================================ */
.search-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(6, 12, 24, 0.85);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.search-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.search-overlay-inner {
    width: 100%;
    max-width: 680px;
    padding: 24px;
    position: relative;
    transform: translateY(-20px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.search-overlay.active .search-overlay-inner {
    transform: translateY(0);
}

.close-search-btn {
    position: absolute;
    top: -10px; right: 24px;
    width: 40px; height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.7);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition);
}

.close-search-btn:hover {
    background: rgba(255,255,255,0.15);
    color: white;
}

.search-overlay-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-overlay-icon {
    position: absolute;
    left: 20px;
    color: var(--primary-light);
    font-size: 1.1rem;
    pointer-events: none;
}

#searchInput {
    width: 100%;
    padding: 18px 20px 18px 52px;
    font-size: 1.25rem;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    border: 1.5px solid rgba(255,255,255,0.12);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.07);
    color: white;
    outline: none;
    transition: var(--transition);
}

#searchInput::placeholder { color: rgba(255,255,255,0.35); }

#searchInput:focus {
    border-color: var(--primary-light);
    background: rgba(255, 255, 255, 0.10);
    box-shadow: 0 0 0 4px rgba(0, 87, 255, 0.20);
}

.search-hint {
    margin-top: 14px;
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.35);
    letter-spacing: 0.3px;
    transition: color 0.2s ease;
}

#searchPreviewCount {
    margin-top: 8px;
    font-size: 0.85rem;
    min-height: 22px;
}

#searchPreviewCount kbd {
    display: inline-block;
    padding: 1px 7px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 5px;
    font-family: 'Inter', sans-serif;
    font-size: 0.78rem;
    color: rgba(255,255,255,0.8);
}

/* ============================================================
   PAGE HEADER / HERO
   ============================================================ */
.page-header {
    margin-top: var(--nav-h);
    padding: 56px 24px 44px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -100px; left: 50%;
    transform: translateX(-50%);
    width: 700px; height: 400px;
    background: radial-gradient(ellipse, rgba(0, 87, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.page-header-inner {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.header-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    background: var(--primary-glow);
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 20px;
}

.live-dot {
    width: 7px; height: 7px;
    background: #22C55E;
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5);
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%   { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5); }
    70%  { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
    100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.header-title {
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: 900;
    letter-spacing: -1.5px;
    line-height: 1.15;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.title-gradient {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-sub {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.6;
    font-weight: 400;
}

/* ============================================================
   NEWS GRID
   ============================================================ */
.news-main {
    padding: 0 24px 80px;
}

.news-main-inner {
    max-width: 1280px;
    margin: 0 auto;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

/* Loader */
.grid-loader {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 0;
    gap: 16px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.loader-spinner {
    width: 40px; height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Empty State */
.empty-state {
    text-align: center;
    padding: 80px 24px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
    color: var(--text-muted);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-state p { font-size: 0.95rem; }

/* ============================================================
   NEWS CARDS
   ============================================================ */
.news-card {
    background: var(--bg-card);
    border-radius: var(--radius-card);
    border: 1px solid var(--border);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
    animation: cardReveal 0.5s ease forwards;
}

@keyframes cardReveal {
    to { opacity: 1; transform: translateY(0); }
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(0, 87, 255, 0.15);
}

/* Card Image */
.card-img-wrapper {
    position: relative;
    overflow: hidden;
    height: 210px;
    flex-shrink: 0;
}

.news-img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
    display: block;
}

.news-card:hover .news-img { transform: scale(1.06); }

/* Category Badge on image */
.category-badge {
    position: absolute;
    bottom: 14px; left: 14px;
    background: rgba(0, 0, 0, 0.52);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: white;
    padding: 5px 11px;
    border-radius: var(--radius-badge);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    border: 1px solid rgba(255,255,255,0.12);
    transition: var(--transition);
}

.badge-ai     { background: rgba(0, 87, 255, 0.65); }
.badge-sw     { background: rgba(16, 185, 129, 0.65); }
.badge-sec    { background: rgba(239, 68, 68, 0.65); }

/* Card Body */
.card-content {
    padding: 22px 22px 18px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.card-source-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.card-source {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.card-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.card-title {
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.45;
    color: var(--text-primary);
    margin-bottom: 10px;
    letter-spacing: -0.3px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
    margin-bottom: 18px;
}

.card-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--primary);
    border-top: 1px solid var(--border);
    padding-top: 16px;
    transition: var(--transition);
    width: fit-content;
}

.card-cta i {
    transition: transform 0.2s ease;
    font-size: 0.75rem;
}

.card-cta:hover { color: var(--primary-light); }
.card-cta:hover i { transform: translateX(4px); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
    background: var(--bg-footer);
    padding: 40px 24px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-logo .logo-icon,
.footer-logo .logo-svg {
    width: 55px;
    height: 55px;
}

.footer-logo .logo-text {
    color: white;
    font-size: 1.3rem;
}

.footer-copy {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.35);
    margin: 0;
}

.footer-socials {
    display: flex;
    gap: 14px;
}

.footer-socials a {
    width: 36px; height: 36px;
    border-radius: 9px;
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.45);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.95rem;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.08);
}

.footer-socials a:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* ============================================================
   CARD ANIMATION STAGGER
   ============================================================ */
.news-card:nth-child(1) { animation-delay: 0.05s; }
.news-card:nth-child(2) { animation-delay: 0.10s; }
.news-card:nth-child(3) { animation-delay: 0.15s; }
.news-card:nth-child(4) { animation-delay: 0.20s; }
.news-card:nth-child(5) { animation-delay: 0.25s; }
.news-card:nth-child(6) { animation-delay: 0.30s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .nav-categories { display: none; }
    .mobile-menu-btn { display: flex; }
}

@media (max-width: 640px) {
    .news-grid { grid-template-columns: 1fr; gap: 16px; }
    .page-header { padding: 40px 16px 32px; }
    .news-main { padding: 0 16px 60px; }
    .footer-inner { flex-direction: column; text-align: center; }
    .navbar-container { gap: 12px; padding: 0 8px; }
    
    /* Mobil cihazlarda inline arama kutusunu gizle */
    .nav-search-box { display: none !important; }
    
    /* Mobil cihazlarda arama butonunu göster */
    .mobile-search-btn { display: flex !important; }
    
    /* Navbar eğer küçükse, logoyu küçült */
    .navbar-logo .logo-icon,
    .navbar-logo .logo-svg {
        width: 32px;
        height: 32px;
    }
    
    .navbar-logo .logo-text {
        font-size: 1rem;
    }
    
    /* Action butonlarını daha kompakt yap */
    .nav-action-btn {
        width: 32px;
        height: 32px;
    }
}

/* ============================================================
   LOAD MORE BUTTON
   ============================================================ */
.load-more-btn {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 12px 32px;
    border-radius: var(--radius-badge);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    font-family: inherit;
}

.load-more-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================================
   WOW FEATURES (Skeletons, Scroll Top, Bookmarks, Share)
   ============================================================ */
/* Skeleton Loader */
.skeleton-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    width: 100%;
}
.skeleton-card {
    background: var(--bg-card);
    border-radius: var(--radius-card);
    overflow: hidden;
    border: 1px solid var(--border);
}
.skel-img {
    height: 200px;
    background: linear-gradient(90deg, var(--border) 25%, rgba(0,0,0,0.05) 50%, var(--border) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}
[data-theme="dark"] .skel-img {
    background: linear-gradient(90deg, var(--border) 25%, rgba(255,255,255,0.05) 50%, var(--border) 75%);
    background-size: 200% 100%;
}
.skel-content { padding: 24px; }
.skel-line {
    height: 12px;
    border-radius: 4px;
    margin-bottom: 12px;
    background: linear-gradient(90deg, var(--border) 25%, rgba(0,0,0,0.05) 50%, var(--border) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}
[data-theme="dark"] .skel-line {
    background: linear-gradient(90deg, var(--border) 25%, rgba(255,255,255,0.05) 50%, var(--border) 75%);
    background-size: 200% 100%;
}
.w-30 { width: 30%; }
.w-40 { width: 40%; }
.w-60 { width: 60%; }
.w-80 { width: 80%; }
.mt-3 { margin-top: 16px; }

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Scroll to Top Button */
.scroll-top-btn {
    position: fixed;
    bottom: -60px;
    right: 24px;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    z-index: 999;
    opacity: 0;
}
.scroll-top-btn.visible {
    bottom: 24px;
    opacity: 1;
}
.scroll-top-btn:hover {
    background: var(--primary-light);
    transform: translateY(-3px);
}

/* Bookmark & Share */
.card-actions-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 20px;
    border-top: 1px solid var(--border);
    padding-top: 16px;
}
.share-links {
    display: flex;
    gap: 8px;
}
.share-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: var(--bg-body);
    color: var(--text-secondary);
    transition: var(--transition);
    font-size: 0.9rem;
}
.share-btn:hover {
    background: var(--primary-glow);
    color: var(--primary);
}
.share-btn.whatsapp:hover { color: #25D366; background: rgba(37,211,102,0.1); }
.share-btn.twitter:hover { color: #1DA1F2; background: rgba(29,161,242,0.1); }

.bookmark-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border: none;
    border-radius: 50%;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 2;
}
.bookmark-btn:hover {
    background: rgba(0,0,0,0.8);
    transform: scale(1.1);
}
.bookmark-btn.active {
    color: #F59E0B;
}

@media (max-width: 1024px) {
    .skeleton-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .skeleton-grid { grid-template-columns: 1fr; }
}