/* =============================================
   ApkBooks - Main Stylesheet
   Modern, Fast, SEO-Optimized Design
   ============================================= */

/* ── CSS Custom Properties ── */
:root {
    --clr-primary:    #2563eb;
    --clr-primary-d:  #1d4ed8;
    --clr-primary-l:  #dbeafe;
    --clr-secondary:  #7c3aed;
    --clr-accent:     #f59e0b;
    --clr-success:    #10b981;
    --clr-danger:     #ef4444;
    --clr-dark:       #0f172a;
    --clr-dark-2:     #1e293b;
    --clr-dark-3:     #334155;
    --clr-muted:      #64748b;
    --clr-light:      #f8fafc;
    --clr-border:     #e2e8f0;
    --clr-white:      #ffffff;
    --font-body:      'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading:   'Playfair Display', Georgia, serif;
    --radius-sm:      6px;
    --radius-md:      12px;
    --radius-lg:      20px;
    --shadow-sm:      0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md:      0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
    --shadow-lg:      0 10px 25px rgba(0,0,0,.10), 0 4px 6px rgba(0,0,0,.05);
    --shadow-xl:      0 20px 40px rgba(0,0,0,.12);
    --transition:     all .25s ease;
    --header-h:       70px;
    --container-w:    1280px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--clr-dark);
    background: var(--clr-light);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

a { color: var(--clr-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--clr-primary-d); }

ul, ol { list-style: none; }

h1, h2, h3, h4, h5 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--clr-dark);
}

/* ── Accessibility ── */
.skip-link {
    position: absolute;
    top: -999px;
    left: -999px;
    background: var(--clr-primary);
    color: #fff;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    z-index: 9999;
}
.skip-link:focus { top: 10px; left: 10px; }

/* ── Container ── */
.container {
    width: 100%;
    max-width: var(--container-w);
    margin-inline: auto;
    padding-inline: 20px;
}

/* ── Section ── */
.section { padding: 64px 0; }
.section-sm { padding: 40px 0; }

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 36px;
    gap: 16px;
    flex-wrap: wrap;
}

.section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--clr-dark);
    position: relative;
    padding-left: 16px;
}

.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 80%;
    background: linear-gradient(to bottom, var(--clr-primary), var(--clr-secondary));
    border-radius: 4px;
}

.view-all {
    font-size: .875rem;
    font-weight: 600;
    color: var(--clr-primary);
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}
.view-all:hover { gap: 8px; }
.view-all i { font-size: .75rem; }

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: .875rem;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    white-space: nowrap;
    line-height: 1.4;
}

.btn-primary {
    background: var(--clr-primary);
    color: #fff;
    border-color: var(--clr-primary);
}
.btn-primary:hover {
    background: var(--clr-primary-d);
    border-color: var(--clr-primary-d);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37,99,235,.35);
}

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

.btn-success {
    background: var(--clr-success);
    color: #fff;
    border-color: var(--clr-success);
}
.btn-success:hover {
    background: #059669;
    border-color: #059669;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16,185,129,.35);
}

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

.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-sm { padding: 7px 14px; font-size: .8rem; }
.btn-block { width: 100%; justify-content: center; }
.btn[disabled] { opacity: .6; cursor: not-allowed; }

/* ── Badges ── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 50px;
    font-size: .7rem;
    font-weight: 700;
    letter-spacing: .03em;
    text-transform: uppercase;
}
.badge-primary  { background: var(--clr-primary-l); color: var(--clr-primary-d); }
.badge-success  { background: #d1fae5; color: #065f46; }
.badge-accent   { background: #fef3c7; color: #92400e; }
.badge-hot      { background: linear-gradient(135deg, #ef4444, #f97316); color: #fff; }
.badge-new      { background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary)); color: #fff; }
.badge-free     { background: linear-gradient(135deg, var(--clr-success), #059669); color: #fff; }

/* ── Ad Wrappers ── */
.ad-header-bar {
    background: var(--clr-dark-2);
    padding: 8px 0;
    text-align: center;
}
.ad-wrapper, .ad-sidebar-box, .ad-between {
    margin: 24px 0;
    text-align: center;
    overflow: hidden;
}
.ad-label {
    display: block;
    font-size: .65rem;
    color: var(--clr-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: .05em;
}

/* ── HEADER ── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--clr-white);
    border-bottom: 1px solid var(--clr-border);
    box-shadow: var(--shadow-sm);
    height: var(--header-h);
}

.navbar {
    display: flex;
    align-items: center;
    height: var(--header-h);
    gap: 24px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--clr-dark);
    flex-shrink: 0;
}
.navbar-brand:hover { color: var(--clr-primary); }
.logo-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.1rem;
}

.header-search {
    flex: 1;
    max-width: 480px;
    display: flex;
    border: 2px solid var(--clr-border);
    border-radius: 50px;
    overflow: hidden;
    transition: var(--transition);
}
.header-search:focus-within {
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px var(--clr-primary-l);
}
.header-search input {
    flex: 1;
    border: none;
    outline: none;
    padding: 8px 16px;
    font-family: var(--font-body);
    font-size: .9rem;
    background: transparent;
    color: var(--clr-dark);
}
.header-search button {
    border: none;
    background: var(--clr-primary);
    color: #fff;
    padding: 8px 18px;
    cursor: pointer;
    transition: var(--transition);
    font-size: .9rem;
}
.header-search button:hover { background: var(--clr-primary-d); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 14px;
    color: var(--clr-dark-3);
    font-weight: 500;
    font-size: .9rem;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 5px;
}
.nav-link:hover, .nav-link.active {
    background: var(--clr-primary-l);
    color: var(--clr-primary);
}
.nav-link i { font-size: .7rem; transition: var(--transition); }

.nav-dropdown {
    position: relative;
}
.nav-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown:hover .nav-link i { transform: rotate(180deg); }

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: var(--clr-white);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    z-index: 999;
}
.dropdown-menu a {
    padding: 8px 12px;
    color: var(--clr-dark-3);
    font-size: .85rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}
.dropdown-menu a:hover { background: var(--clr-primary-l); color: var(--clr-primary); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-left: auto;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--clr-dark);
    transition: var(--transition);
    border-radius: 2px;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-search-bar {
    display: none;
    background: var(--clr-white);
    border-bottom: 1px solid var(--clr-border);
    padding: 10px 0;
}
.mobile-search-bar form {
    display: flex;
    border: 2px solid var(--clr-border);
    border-radius: 50px;
    overflow: hidden;
}
.mobile-search-bar input {
    flex: 1;
    border: none;
    outline: none;
    padding: 8px 16px;
    font-family: var(--font-body);
    font-size: .9rem;
}
.mobile-search-bar button {
    border: none;
    background: var(--clr-primary);
    color: #fff;
    padding: 8px 16px;
    cursor: pointer;
}

/* ── HERO SECTION ── */
.hero {
    background: linear-gradient(135deg, var(--clr-dark) 0%, var(--clr-dark-2) 50%, #1e1b4b 100%);
    color: #fff;
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.15);
    color: #fff;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: .8rem;
    font-weight: 600;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}
.hero-badge .dot {
    width: 6px;
    height: 6px;
    background: var(--clr-accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: .5; transform: scale(1.5); }
}

.hero h1 {
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    color: #fff;
    margin-bottom: 20px;
    line-height: 1.15;
}
.hero h1 span { color: var(--clr-accent); }

.hero-text {
    font-size: 1.05rem;
    color: rgba(255,255,255,.75);
    margin-bottom: 32px;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}
.hero-stat h3 {
    font-size: 1.8rem;
    color: #fff;
    font-family: var(--font-body);
    font-weight: 800;
}
.hero-stat p { font-size: .8rem; color: rgba(255,255,255,.6); }

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}
.hero-books-stack {
    display: flex;
    gap: -10px;
    position: relative;
}
.hero-book-card {
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: var(--radius-md);
    padding: 16px;
    width: 160px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}
.hero-book-card:nth-child(1) { transform: rotate(-5deg) translateX(20px); z-index: 1; }
.hero-book-card:nth-child(2) { transform: rotate(0deg); z-index: 2; }
.hero-book-card:nth-child(3) { transform: rotate(5deg) translateX(-20px); z-index: 1; }
.hero-book-cover {
    width: 100%;
    aspect-ratio: 2/3;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: rgba(255,255,255,.5);
    margin-bottom: 10px;
}
.hero-book-title { font-size: .7rem; color: rgba(255,255,255,.8); font-family: var(--font-body); }

/* ── SEARCH BAR (Homepage) ── */
.hero-search {
    background: var(--clr-white);
    border-radius: var(--radius-lg);
    padding: 8px 8px 8px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: var(--shadow-xl);
}
.hero-search input {
    flex: 1;
    border: none;
    outline: none;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--clr-dark);
    background: transparent;
}
.hero-search button {
    border: none;
    background: var(--clr-primary);
    color: #fff;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}
.hero-search button:hover { background: var(--clr-primary-d); }

/* ── BOOK CARDS ── */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 24px;
}

.book-card {
    background: var(--clr-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
}
.book-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.book-card:hover .book-cover img { transform: scale(1.05); }

.book-cover {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
    background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
}
.book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}
.book-cover-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--clr-primary-l), #ede9fe);
    gap: 8px;
}
.book-cover-placeholder i {
    font-size: 2.5rem;
    color: var(--clr-primary);
    opacity: .5;
}
.book-cover-placeholder span {
    font-size: .65rem;
    color: var(--clr-muted);
    text-align: center;
    padding: 0 8px;
}

.book-badges {
    position: absolute;
    top: 10px;
    left: 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.book-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15,23,42,.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    backdrop-filter: blur(2px);
}
.book-card:hover .book-overlay { opacity: 1; }
.book-overlay-btn {
    background: #fff;
    color: var(--clr-primary);
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: .85rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}
.book-overlay-btn:hover { background: var(--clr-primary); color: #fff; }

.book-info {
    padding: 14px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.book-category {
    font-size: .7rem;
    color: var(--clr-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
}

.book-title {
    font-family: var(--font-heading);
    font-size: .95rem;
    color: var(--clr-dark);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.book-title:hover { color: var(--clr-primary); }

.book-author {
    font-size: .8rem;
    color: var(--clr-muted);
}

.book-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: .75rem;
    color: var(--clr-muted);
    margin-top: auto;
}
.book-meta i { color: var(--clr-accent); }

.book-footer {
    padding: 12px 14px;
    border-top: 1px solid var(--clr-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

/* ── BOOK DETAIL PAGE ── */
.book-detail {
    padding: 48px 0;
}
.book-detail-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 48px;
    align-items: start;
}
.book-detail-cover {
    position: sticky;
    top: calc(var(--header-h) + 24px);
}
.book-detail-cover img, .book-detail-cover-placeholder {
    width: 100%;
    aspect-ratio: 2/3;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    object-fit: cover;
}
.book-detail-cover-placeholder {
    background: linear-gradient(135deg, var(--clr-primary-l), #ede9fe);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: var(--clr-primary);
    opacity: .4;
}
.book-detail-actions {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.book-detail-title {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    margin-bottom: 8px;
}
.book-detail-author { font-size: 1rem; color: var(--clr-muted); margin-bottom: 16px; }
.book-detail-author a { color: var(--clr-primary); font-weight: 600; }

.book-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    background: var(--clr-light);
    border-radius: var(--radius-md);
    padding: 20px;
    margin: 24px 0;
}
.book-spec { display: flex; flex-direction: column; gap: 4px; }
.book-spec-label { font-size: .7rem; color: var(--clr-muted); text-transform: uppercase; letter-spacing: .06em; font-weight: 600; }
.book-spec-value { font-size: .9rem; font-weight: 600; color: var(--clr-dark); }

.book-description { font-size: .95rem; color: var(--clr-dark-3); line-height: 1.8; }
.book-description h2, .book-description h3 { margin: 20px 0 12px; font-size: 1.2rem; }
.book-description p { margin-bottom: 12px; }

/* ── FEATURED / HERO Books ── */
.featured-book {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 24px;
    background: var(--clr-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition);
    padding: 0;
}
.featured-book:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.featured-book-cover {
    aspect-ratio: 2/3;
    overflow: hidden;
    position: relative;
}
.featured-book-cover img { width: 100%; height: 100%; object-fit: cover; }
.featured-book-info {
    padding: 24px 24px 24px 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.featured-book-title { font-size: 1.2rem; margin-bottom: 8px; }
.featured-book-author { color: var(--clr-muted); font-size: .875rem; margin-bottom: 12px; }
.featured-book-desc  { font-size: .85rem; color: var(--clr-dark-3); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 16px; }

/* ── CATEGORY CARDS ── */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 16px;
}

.category-card {
    background: var(--clr-white);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    padding: 24px 16px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-sm);
}
.category-card:hover {
    border-color: var(--clr-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.category-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--clr-primary-l);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--clr-primary);
    transition: var(--transition);
}
.category-card:hover .category-icon {
    background: var(--clr-primary);
    color: #fff;
    transform: scale(1.1);
}

.category-name {
    font-weight: 600;
    font-size: .9rem;
    color: var(--clr-dark);
    font-family: var(--font-body);
}
.category-count { font-size: .75rem; color: var(--clr-muted); }

/* ── BLOG CARDS ── */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
    gap: 28px;
}

.blog-card {
    background: var(--clr-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.blog-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.blog-card:hover .blog-cover img { transform: scale(1.05); }

.blog-cover {
    aspect-ratio: 16/9;
    overflow: hidden;
    position: relative;
    background: var(--clr-border);
}
.blog-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.blog-cover-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--clr-primary-l), #ede9fe);
    font-size: 3rem;
    color: var(--clr-primary);
    opacity: .4;
}
.blog-category-tag {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: var(--clr-primary);
    color: #fff;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: .7rem;
    font-weight: 600;
}

.blog-info { padding: 20px; flex: 1; display: flex; flex-direction: column; gap: 10px; }
.blog-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: .75rem;
    color: var(--clr-muted);
    flex-wrap: wrap;
}
.blog-meta i { color: var(--clr-primary); }

.blog-title {
    font-size: 1.1rem;
    line-height: 1.35;
    color: var(--clr-dark);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.blog-title:hover { color: var(--clr-primary); }

.blog-excerpt { font-size: .85rem; color: var(--clr-muted); line-height: 1.6; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.blog-read-more { display: flex; align-items: center; gap: 6px; font-weight: 600; font-size: .85rem; color: var(--clr-primary); margin-top: auto; }
.blog-read-more:hover { gap: 10px; }

/* ── BLOG FEATURED (large) ── */
.blog-featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    background: var(--clr-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    margin-bottom: 40px;
}
.blog-featured-cover { aspect-ratio: auto; min-height: 360px; overflow: hidden; }
.blog-featured-cover img { width: 100%; height: 100%; object-fit: cover; }
.blog-featured-info { padding: 48px; display: flex; flex-direction: column; justify-content: center; gap: 16px; }
.blog-featured-title { font-size: 1.8rem; }

/* ── BLOG SINGLE POST ── */
.post-wrapper {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 48px;
    align-items: start;
    padding: 48px 0;
}

.post-article { background: var(--clr-white); border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow-sm); }
.post-header { margin-bottom: 32px; }
.post-category { color: var(--clr-primary); font-weight: 600; font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; display: block; margin-bottom: 12px; }
.post-title { font-size: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 16px; }
.post-meta { display: flex; align-items: center; gap: 20px; color: var(--clr-muted); font-size: .85rem; flex-wrap: wrap; }
.post-meta i { color: var(--clr-primary); }

.post-cover {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin: 24px 0;
}
.post-cover img { width: 100%; height: 100%; object-fit: cover; }

.post-content { font-size: 1rem; color: var(--clr-dark-3); line-height: 1.85; }
.post-content h2 { font-size: 1.6rem; margin: 36px 0 16px; color: var(--clr-dark); }
.post-content h3 { font-size: 1.25rem; margin: 28px 0 12px; color: var(--clr-dark); }
.post-content p  { margin-bottom: 18px; }
.post-content ul, .post-content ol { margin: 0 0 18px 24px; list-style: disc; }
.post-content li { margin-bottom: 8px; }
.post-content blockquote {
    background: var(--clr-primary-l);
    border-left: 4px solid var(--clr-primary);
    padding: 20px 24px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 24px 0;
    font-style: italic;
    color: var(--clr-dark-3);
}
.post-content img { border-radius: var(--radius-md); margin: 20px 0; }
.post-content a { color: var(--clr-primary); border-bottom: 1px solid var(--clr-primary-l); }
.post-content a:hover { border-bottom-color: var(--clr-primary); }

.post-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; }
.post-tag { background: var(--clr-light); color: var(--clr-dark-3); padding: 5px 14px; border-radius: 50px; font-size: .8rem; border: 1px solid var(--clr-border); }
.post-tag:hover { background: var(--clr-primary-l); color: var(--clr-primary); border-color: var(--clr-primary-l); }

/* ── SIDEBAR ── */
.sidebar { display: flex; flex-direction: column; gap: 28px; position: sticky; top: calc(var(--header-h) + 24px); }

.sidebar-widget {
    background: var(--clr-white);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}
.sidebar-widget-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--clr-dark);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--clr-primary-l);
    font-family: var(--font-body);
    display: flex;
    align-items: center;
    gap: 8px;
}
.sidebar-widget-title i { color: var(--clr-primary); }

.sidebar-book { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 16px; }
.sidebar-book-cover { width: 50px; min-width: 50px; aspect-ratio: 2/3; border-radius: 4px; overflow: hidden; background: var(--clr-border); }
.sidebar-book-cover img { width: 100%; height: 100%; object-fit: cover; }
.sidebar-book-info { flex: 1; }
.sidebar-book-title { font-size: .85rem; font-weight: 600; line-height: 1.3; color: var(--clr-dark); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sidebar-book-title:hover { color: var(--clr-primary); }
.sidebar-book-meta { font-size: .75rem; color: var(--clr-muted); margin-top: 4px; }

.sidebar-post { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--clr-border); }
.sidebar-post:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }
.sidebar-post-thumb { width: 64px; min-width: 64px; height: 48px; border-radius: var(--radius-sm); overflow: hidden; background: var(--clr-border); }
.sidebar-post-thumb img { width: 100%; height: 100%; object-fit: cover; }
.sidebar-post-title { font-size: .82rem; font-weight: 600; color: var(--clr-dark); line-height: 1.35; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sidebar-post-title:hover { color: var(--clr-primary); }
.sidebar-post-date { font-size: .73rem; color: var(--clr-muted); margin-top: 4px; }

.sidebar-cats a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--clr-dark-3);
    font-size: .875rem;
    margin-bottom: 4px;
    transition: var(--transition);
}
.sidebar-cats a:hover { background: var(--clr-primary-l); color: var(--clr-primary); padding-left: 16px; }
.sidebar-cats .count {
    background: var(--clr-light);
    color: var(--clr-muted);
    font-size: .7rem;
    padding: 2px 8px;
    border-radius: 50px;
    font-weight: 600;
}

/* ── SEARCH PAGE ── */
.search-bar-lg {
    background: var(--clr-dark-2);
    padding: 48px 0;
}
.search-bar-lg form {
    display: flex;
    border-radius: 50px;
    overflow: hidden;
    max-width: 700px;
    margin: 0 auto;
    box-shadow: var(--shadow-xl);
}
.search-bar-lg input {
    flex: 1;
    border: none;
    padding: 16px 28px;
    font-size: 1.05rem;
    font-family: var(--font-body);
    outline: none;
}
.search-bar-lg button {
    background: var(--clr-primary);
    color: #fff;
    border: none;
    padding: 16px 32px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.search-bar-lg button:hover { background: var(--clr-primary-d); }

.search-heading {
    font-size: 1.1rem;
    color: var(--clr-muted);
    margin-bottom: 24px;
}
.search-heading strong { color: var(--clr-dark); }

/* ── BREADCRUMB ── */
.breadcrumb {
    padding: 12px 0;
    margin-bottom: 0;
}
.breadcrumb ol {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    list-style: none;
    font-size: .85rem;
}
.breadcrumb li {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--clr-muted);
}
.breadcrumb li::after { content: '/'; }
.breadcrumb li:last-child::after { content: ''; }
.breadcrumb li:last-child, .breadcrumb li.active { color: var(--clr-dark); font-weight: 500; }
.breadcrumb a { color: var(--clr-primary); }
.breadcrumb a:hover { text-decoration: underline; }

/* ── PAGE HEADER BANNER ── */
.page-banner {
    background: linear-gradient(135deg, var(--clr-dark) 0%, var(--clr-dark-2) 100%);
    color: #fff;
    padding: 48px 0 40px;
    margin-bottom: 0;
}
.page-banner .breadcrumb li,
.page-banner .breadcrumb a { color: rgba(255,255,255,.7); }
.page-banner .breadcrumb li:last-child,
.page-banner .breadcrumb li.active { color: #fff; }
.page-banner h1 { color: #fff; font-size: clamp(1.5rem, 3vw, 2.4rem); margin-top: 12px; }
.page-banner p { color: rgba(255,255,255,.7); margin-top: 8px; }

/* ── COUNTDOWN / DOWNLOAD PAGE ── */
.countdown-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--clr-dark) 0%, #1e1b4b 100%);
    padding: 40px 20px;
}
.countdown-box {
    background: var(--clr-white);
    border-radius: var(--radius-lg);
    padding: 48px;
    max-width: 560px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-xl);
}
.countdown-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
    margin: 0 auto 24px;
}
.countdown-box h1 { font-size: 1.6rem; margin-bottom: 8px; }
.countdown-box .book-name { color: var(--clr-primary); font-weight: 700; font-size: 1.1rem; margin-bottom: 24px; }
.countdown-disclaimer { font-size: .8rem; color: var(--clr-muted); margin-top: 20px; line-height: 1.6; }

.countdown-timer {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--clr-light);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto 28px;
    position: relative;
    box-shadow: inset 0 0 0 6px var(--clr-border);
}
.countdown-timer svg {
    position: absolute;
    inset: 0;
    transform: rotate(-90deg);
}
.countdown-timer svg circle.track { fill: none; stroke: var(--clr-border); stroke-width: 6; }
.countdown-timer svg circle.progress {
    fill: none;
    stroke: var(--clr-primary);
    stroke-width: 6;
    stroke-linecap: round;
    transition: stroke-dashoffset .9s linear;
}
.countdown-number { font-size: 2.5rem; font-weight: 800; color: var(--clr-dark); line-height: 1; z-index: 1; }
.countdown-label  { font-size: .7rem; color: var(--clr-muted); z-index: 1; }

.countdown-progress {
    width: 100%;
    background: var(--clr-border);
    border-radius: 50px;
    height: 6px;
    margin-bottom: 28px;
    overflow: hidden;
}
.countdown-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--clr-primary), var(--clr-secondary));
    border-radius: 50px;
    transition: width 1s linear;
}

.download-btn-wrapper { display: none; }
.download-btn-wrapper.visible { display: block; animation: fadeInUp .5s ease; }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── STATS BAR ── */
.stats-bar {
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
    padding: 40px 0;
    color: #fff;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}
.stat-item h3 { font-size: 2.2rem; font-family: var(--font-body); font-weight: 800; margin-bottom: 4px; }
.stat-item p  { font-size: .875rem; opacity: .85; }

/* ── NEWSLETTER ── */
.newsletter-section {
    background: linear-gradient(135deg, var(--clr-dark-2), #1e1b4b);
    padding: 64px 0;
    color: #fff;
    text-align: center;
}
.newsletter-inner { max-width: 520px; margin: 0 auto; }
.newsletter-inner h2 { font-size: 2rem; color: #fff; margin-bottom: 12px; }
.newsletter-inner p  { color: rgba(255,255,255,.75); margin-bottom: 28px; }
.newsletter-form {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}
.newsletter-form input {
    flex: 1;
    min-width: 220px;
    border: none;
    border-radius: var(--radius-sm);
    padding: 12px 18px;
    font-size: .95rem;
    font-family: var(--font-body);
    outline: none;
}
.newsletter-form button {
    border: none;
    background: var(--clr-accent);
    color: var(--clr-dark);
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}
.newsletter-form button:hover { background: #d97706; }

/* ── PAGINATION ── */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 48px;
    flex-wrap: wrap;
}
.page-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--clr-white);
    color: var(--clr-dark-3);
    font-weight: 600;
    font-size: .875rem;
    transition: var(--transition);
    border: 1px solid var(--clr-border);
    box-shadow: var(--shadow-sm);
}
.page-btn:hover { background: var(--clr-primary-l); color: var(--clr-primary); border-color: var(--clr-primary-l); }
.page-btn.active { background: var(--clr-primary); color: #fff; border-color: var(--clr-primary); }
.page-btn.prev, .page-btn.next { width: auto; padding: 0 14px; }
.page-ellipsis { color: var(--clr-muted); font-size: .875rem; }

/* ── ALERTS ── */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    font-size: .9rem;
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.alert i { flex-shrink: 0; margin-top: 2px; }
.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-danger   { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-info     { background: var(--clr-primary-l); color: var(--clr-primary-d); border: 1px solid #bfdbfe; }
.alert-warning  { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }

/* ── FORMS ── */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: .875rem; font-weight: 600; margin-bottom: 6px; color: var(--clr-dark); }
.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--clr-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: .9rem;
    color: var(--clr-dark);
    background: var(--clr-white);
    transition: var(--transition);
    outline: none;
}
.form-control:focus { border-color: var(--clr-primary); box-shadow: 0 0 0 3px var(--clr-primary-l); }

/* ── RATING STARS ── */
.stars { color: var(--clr-accent); font-size: .875rem; letter-spacing: 1px; }

/* ── BACK TO TOP ── */
.back-to-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--clr-primary);
    color: #fff;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .9rem;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--clr-primary-d); transform: translateY(-3px); }

/* ── SITE FOOTER ── */
.site-footer {
    background: var(--clr-dark);
    color: rgba(255,255,255,.75);
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding: 64px 0 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}
.footer-logo i {
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
    padding: 8px;
    border-radius: var(--radius-sm);
}

.footer-about p { font-size: .875rem; line-height: 1.7; margin-bottom: 20px; }

.footer-social {
    display: flex;
    gap: 10px;
}
.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,.08);
    color: rgba(255,255,255,.75);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .9rem;
    transition: var(--transition);
}
.footer-social a:hover { background: var(--clr-primary); color: #fff; }

.footer-heading {
    font-family: var(--font-body);
    font-size: .9rem;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer-links li { margin-bottom: 10px; }
.footer-links a {
    font-size: .875rem;
    color: rgba(255,255,255,.6);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-links a i { font-size: .7rem; color: var(--clr-primary); }

.footer-cpa { padding: 24px 0; border-top: 1px solid rgba(255,255,255,.08); text-align: center; }

.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid rgba(255,255,255,.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-bottom p { font-size: .8rem; color: rgba(255,255,255,.5); }
.footer-disclaimer { font-size: .75rem; color: rgba(255,255,255,.4) !important; text-align: center; flex: 1 1 100%; }
.footer-disclaimer a { color: rgba(255,255,255,.6); text-decoration: underline; }

/* ── EMPTY STATE ── */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--clr-muted);
}
.empty-state i { font-size: 4rem; margin-bottom: 16px; opacity: .3; display: block; }
.empty-state h3 { font-size: 1.2rem; color: var(--clr-dark); margin-bottom: 8px; }
.empty-state p { font-size: .9rem; }

/* ── LOADING SPINNER ── */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--clr-border);
    border-top-color: var(--clr-primary);
    border-radius: 50%;
    animation: spin .8s linear infinite;
    margin: 40px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── ADMIN STYLES ── */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
    background: var(--clr-light);
}

.admin-sidebar {
    width: 260px;
    min-width: 260px;
    background: var(--clr-dark);
    color: #fff;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.admin-logo {
    padding: 24px 20px;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
    border-bottom: 1px solid rgba(255,255,255,.08);
    display: flex;
    align-items: center;
    gap: 10px;
}
.admin-logo i { color: var(--clr-primary); }

.admin-nav { padding: 16px 12px; flex: 1; }
.admin-nav-section { font-size: .65rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.3); padding: 8px 10px; margin-top: 16px; }
.admin-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    color: rgba(255,255,255,.7);
    border-radius: var(--radius-sm);
    font-size: .875rem;
    margin-bottom: 2px;
    transition: var(--transition);
}
.admin-nav a:hover, .admin-nav a.active { background: rgba(255,255,255,.08); color: #fff; }
.admin-nav a.active { background: var(--clr-primary); color: #fff; }
.admin-nav a i { width: 18px; text-align: center; }

.admin-main { flex: 1; overflow-x: auto; }
.admin-topbar {
    background: var(--clr-white);
    border-bottom: 1px solid var(--clr-border);
    padding: 0 32px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}
.admin-topbar h1 { font-size: 1.2rem; font-family: var(--font-body); }
.admin-content { padding: 32px; }

.admin-card {
    background: var(--clr-white);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
}
.admin-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--clr-border);
}
.admin-card-title { font-size: 1rem; font-weight: 700; font-family: var(--font-body); }

.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}
.admin-stat-card {
    background: var(--clr-white);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 16px;
    border-left: 4px solid var(--clr-primary);
}
.admin-stat-card.purple { border-left-color: var(--clr-secondary); }
.admin-stat-card.green  { border-left-color: var(--clr-success); }
.admin-stat-card.orange { border-left-color: var(--clr-accent); }
.admin-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--clr-primary-l);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--clr-primary);
    flex-shrink: 0;
}
.admin-stat-info h3 { font-size: 1.8rem; font-family: var(--font-body); }
.admin-stat-info p  { font-size: .8rem; color: var(--clr-muted); }

/* Table styles */
.data-table { width: 100%; border-collapse: collapse; font-size: .875rem; }
.data-table th { background: var(--clr-light); padding: 12px 16px; text-align: left; font-weight: 700; color: var(--clr-dark); border-bottom: 2px solid var(--clr-border); white-space: nowrap; }
.data-table td { padding: 14px 16px; border-bottom: 1px solid var(--clr-border); color: var(--clr-dark-3); vertical-align: middle; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--clr-light); }
.table-actions { display: flex; gap: 8px; align-items: center; }

/* ── RESPONSIVE ── */
@media (max-width: 1200px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual   { display: none; }
    .blog-featured { grid-template-columns: 1fr; }
    .blog-featured-cover { min-height: 260px; }
    .post-wrapper  { grid-template-columns: 1fr; }
    .sidebar       { position: static; }
    .book-detail-grid { grid-template-columns: 240px 1fr; gap: 32px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    :root { --header-h: 60px; }

    .header-search { display: none; }
    .mobile-search-bar { display: block; }

    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: var(--clr-white);
        flex-direction: column;
        padding: 16px;
        gap: 4px;
        border-bottom: 1px solid var(--clr-border);
        box-shadow: var(--shadow-lg);
        max-height: calc(100vh - var(--header-h));
        overflow-y: auto;
        z-index: 999;
    }
    .nav-links.open { display: flex; }
    .nav-dropdown .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: var(--clr-light);
        grid-template-columns: 1fr;
        display: none;
        padding: 8px;
    }
    .nav-dropdown.open .dropdown-menu { display: grid; }

    .hero { padding: 48px 0 60px; }
    .hero-stats { gap: 20px; }
    .hero-stat h3 { font-size: 1.4rem; }

    .books-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 16px; }
    .blog-grid  { grid-template-columns: 1fr; }
    .categories-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }

    .featured-book { grid-template-columns: 120px 1fr; }
    .featured-book-cover { aspect-ratio: auto; min-height: unset; }
    .featured-book-info { padding: 16px; }
    .featured-book-title { font-size: 1rem; }

    .book-detail-grid { grid-template-columns: 1fr; }
    .book-detail-cover { position: static; max-width: 260px; }
    .book-specs { grid-template-columns: 1fr 1fr; }

    .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 40px 0 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }

    .admin-sidebar { width: 220px; min-width: 220px; }
    .countdown-box { padding: 32px 24px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .section { padding: 40px 0; }
    .books-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .categories-grid { grid-template-columns: repeat(3, 1fr); }
    .hero-actions .btn-lg { padding: 11px 20px; font-size: .9rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .admin-wrapper { flex-direction: column; }
    .admin-sidebar { width: 100%; height: auto; position: static; }
}

/* ── PRINT STYLES ── */
@media print {
    .site-header, .site-footer, .back-to-top, .ad-wrapper, .sidebar { display: none !important; }
    body { font-size: 12pt; }
    a[href]::after { content: " (" attr(href) ")"; font-size: .8em; }
}