/* =====================================================
   LEXIREAD — DISEÑO MINIMALISTA PROFESIONAL
   Paleta: Azul (#0F3460), Negro (#0D0D0D), Blanco (#FFFFFF)
   Tipografía: Playfair Display + DM Sans
   ===================================================== */

:root {
    --blue-dark:    #0F3460;
    --blue-mid:     #1a4a8a;
    --blue-light:   #E8F0FE;
    --blue-accent:  #2563EB;
    --black:        #0D0D0D;
    --gray-900:     #1A1A1A;
    --gray-800:     #2D2D2D;
    --gray-700:     #404040;
    --gray-500:     #737373;
    --gray-300:     #D4D4D4;
    --gray-100:     #F5F5F5;
    --white:        #FFFFFF;
    --gold:         #F59E0B;
    --green:        #16A34A;
    --red:          #DC2626;

    --nav-h: 64px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.15);
    --transition: 0.18s ease;
    --container: 1280px;
}

/* ─── RESET ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
    font-family: 'DM Sans', sans-serif;
    color: var(--gray-900);
    background: var(--white);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }
ul { list-style: none; }

/* ─── CONTENEDOR ─── */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ─── NAVBAR ─── */
.navbar {
    position: sticky; top: 0; z-index: 1000;
    background: var(--white);
    border-bottom: 1px solid var(--gray-300);
    box-shadow: var(--shadow-sm);
}
.nav-inner {
    max-width: var(--container); margin: 0 auto; padding: 0 24px;
    height: var(--nav-h);
    display: flex; align-items: center; gap: 24px;
}
.nav-logo {
    display: flex; align-items: center; gap: 10px;
    flex-shrink: 0;
}
.nav-logo-img {
    height: 46px;
    width: 46px;
    display: block;
    object-fit: cover;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.logo-icon { font-size: 22px; }
.logo-text {
    font-family: 'Playfair Display', serif;
    font-size: 22px; font-weight: 700;
    color: var(--blue-dark);
    letter-spacing: -0.3px;
}
.nav-search { flex: 1; max-width: 520px; }
.search-box {
    display: flex; align-items: center; gap: 10px;
    background: var(--gray-100);
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm);
    padding: 8px 14px;
    transition: var(--transition);
}
.search-box:focus-within {
    border-color: var(--blue-accent);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.search-box svg { width: 17px; height: 17px; color: var(--gray-500); flex-shrink: 0; }
.search-box input {
    border: none; background: none; outline: none;
    width: 100%; font-size: 14px; color: var(--gray-900);
}
.search-box input::placeholder { color: var(--gray-500); }
.search-submit-btn {
    display: flex; align-items: center; justify-content: center;
    background: var(--blue-dark); color: white;
    border: none; border-radius: 5px;
    width: 28px; height: 28px;
    cursor: pointer; flex-shrink: 0;
    transition: background .18s;
}
.search-submit-btn:hover { background: var(--blue-mid); }

/* Sugerencias en tiempo real */
.search-form { position: relative; }
.search-suggestions {
    position: absolute; top: calc(100% + 6px); left: 0; right: 0;
    background: white;
    border: 1.5px solid var(--gray-300);
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0,0,0,.13);
    z-index: 999;
    overflow: hidden;
    display: none;
}
.search-suggestions.open { display: block; }
.sug-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px;
    text-decoration: none;
    transition: background .15s;
    border-bottom: 1px solid var(--gray-100);
}
.sug-item:last-child { border-bottom: none; }
.sug-item:hover { background: var(--blue-light); }
.sug-thumb {
    width: 34px; height: 46px; flex-shrink: 0;
    border-radius: 3px; object-fit: cover;
    background: var(--gray-200);
}
.sug-thumb-placeholder {
    width: 34px; height: 46px; flex-shrink: 0;
    border-radius: 3px; background: var(--gray-200);
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
}
.sug-title { font-size: 13.5px; font-weight: 600; color: var(--gray-900); line-height: 1.3; }
.sug-meta  { font-size: 11.5px; color: var(--gray-500); margin-top: 2px; }
.sug-footer {
    display: block; text-align: center;
    padding: 9px; font-size: 13px;
    color: var(--blue-accent); font-weight: 600;
    background: var(--gray-100);
    transition: background .15s;
}
.sug-footer:hover { background: var(--blue-light); }
.nav-links { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.nav-link {
    font-size: 14px; font-weight: 500;
    color: var(--gray-700);
    padding: 7px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--blue-dark); background: var(--blue-light); }

/* User menu */
.nav-user-menu { position: relative; }
.user-trigger {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 14px; font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition);
}
.user-trigger:hover { background: var(--gray-100); }
.user-avatar {
    width: 30px; height: 30px;
    background: var(--blue-dark); color: var(--white);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 600;
}
.user-dropdown {
    position: absolute; top: calc(100% + 8px); right: 0;
    width: 210px;
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 6px;
    opacity: 0; pointer-events: none;
    transform: translateY(-6px);
    transition: var(--transition);
    z-index: 100;
}
.nav-user-menu:hover .user-dropdown,
.nav-user-menu:focus-within .user-dropdown {
    opacity: 1; pointer-events: all; transform: translateY(0);
}
.user-dropdown a {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 12px;
    font-size: 13.5px; color: var(--gray-700);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.user-dropdown a:hover { background: var(--gray-100); color: var(--blue-dark); }
.dropdown-divider { height: 1px; background: var(--gray-300); margin: 4px 0; }
.logout-link { color: var(--red) !important; }
.logout-link:hover { background: #FEF2F2 !important; }

/* Buttons */
.btn-primary-sm {
    background: var(--blue-dark); color: var(--white);
    padding: 8px 18px; border-radius: var(--radius-sm);
    font-size: 13.5px; font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-primary-sm:hover { background: var(--blue-mid); }
.btn-primary {
    background: var(--blue-dark); color: var(--white);
    padding: 12px 28px; border-radius: var(--radius-sm);
    font-size: 15px; font-weight: 600;
    transition: var(--transition);
    display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary:hover { background: var(--blue-mid); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-secondary {
    background: var(--white); color: var(--blue-dark);
    border: 1.5px solid var(--blue-dark);
    padding: 11px 26px; border-radius: var(--radius-sm);
    font-size: 15px; font-weight: 600;
    transition: var(--transition);
    display: inline-flex; align-items: center; gap: 8px;
}
.btn-secondary:hover { background: var(--blue-light); }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 6px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--gray-900); border-radius: 2px; transition: var(--transition); }
.mobile-menu { display: none; flex-direction: column; padding: 12px 24px 16px; border-top: 1px solid var(--gray-300); background: var(--white); gap: 2px; }
.mobile-menu a { padding: 10px 0; font-size: 15px; color: var(--gray-700); border-bottom: 1px solid var(--gray-100); }
.mobile-search { display: flex; gap: 8px; margin-bottom: 12px; }
.mobile-search input { flex: 1; padding: 9px 12px; border: 1.5px solid var(--gray-300); border-radius: var(--radius-sm); font-size: 14px; outline: none; }
.mobile-search button { background: var(--blue-dark); color: var(--white); padding: 9px 16px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; }
.mobile-menu.open { display: flex; }

/* ─── HERO ─── */
.hero {
    background: #080f1e;
    color: var(--white);
    position: relative;
    overflow: hidden;
    padding: 0;
}
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 50%, rgba(30,64,175,0.55) 0%, transparent 60%),
        radial-gradient(ellipse 60% 80% at 80% 20%, rgba(37,99,235,0.25) 0%, transparent 55%),
        radial-gradient(ellipse 50% 60% at 60% 90%, rgba(14,165,233,0.12) 0%, transparent 50%),
        linear-gradient(160deg, #080f1e 0%, #0d1f4e 50%, #080f1e 100%);
    z-index: 0;
}
.hero::after {
    content: '';
    position: absolute;
    width: 700px; height: 700px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, transparent 70%);
    top: -150px; right: -150px;
    z-index: 0;
    animation: heroOrb 10s ease-in-out infinite alternate;
}
@keyframes heroOrb {
    from { transform: scale(1) translate(0,0); }
    to   { transform: scale(1.2) translate(-40px, 50px); }
}

/* ── Hero top: text + carousel ── */
.hero-inner {
    position: relative; z-index: 1;
    max-width: var(--container); margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
    padding: 80px 24px 64px;
}

/* Left col */
.hero-text-col {
    display: flex; flex-direction: column;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(59,130,246,0.15);
    border: 1px solid rgba(59,130,246,0.35);
    border-radius: 100px;
    padding: 7px 18px;
    font-size: 11.5px; font-weight: 700; letter-spacing: 1.5px;
    text-transform: uppercase; color: #93C5FD;
    margin-bottom: 28px;
    backdrop-filter: blur(8px);
    width: fit-content;
}
.hero-badge-dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: #60A5FA;
    box-shadow: 0 0 6px #60A5FA;
    animation: pulse 2s ease-in-out infinite;
    flex-shrink: 0;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.5; transform: scale(0.7); }
}
.hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(36px, 4vw, 58px);
    font-weight: 700; line-height: 1.1;
    margin-bottom: 22px;
    letter-spacing: -0.5px;
}
.hero h1 em {
    font-style: normal;
    background: linear-gradient(90deg, #60A5FA 0%, #93C5FD 50%, #38BDF8 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-desc {
    font-size: 16.5px; line-height: 1.75;
    color: #94A3B8;
    margin-bottom: 36px;
    max-width: 420px;
}
.hero-actions {
    display: flex; gap: 12px; flex-wrap: wrap;
    margin-bottom: 40px;
}
.hero-btn-primary {
    background: linear-gradient(135deg, #2563EB, #1d4ed8);
    color: var(--white);
    padding: 14px 32px; border-radius: 9px;
    font-weight: 700; font-size: 15px;
    transition: all 0.22s ease;
    box-shadow: 0 4px 20px rgba(37,99,235,0.4);
}
.hero-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(37,99,235,0.55);
    background: linear-gradient(135deg, #3b82f6, #2563EB);
}
.hero-btn-outline {
    border: 1.5px solid rgba(255,255,255,0.22); color: var(--white);
    padding: 14px 32px; border-radius: 9px;
    font-weight: 600; font-size: 15px;
    transition: all 0.22s ease;
    background: rgba(255,255,255,0.04);
    backdrop-filter: blur(6px);
}
.hero-btn-outline:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.5); }

.hero-stats {
    display: flex; gap: 0;
}
.hero-stat {
    padding: 0 32px;
    border-right: 1px solid rgba(255,255,255,0.1);
}
.hero-stat:first-child { padding-left: 0; }
.hero-stat:last-child  { border-right: none; }
.hero-stat strong {
    display: block; font-size: 30px; font-weight: 800; line-height: 1;
    background: linear-gradient(135deg, #fff 40%, #93C5FD);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-stat span { font-size: 12.5px; color: #64748B; margin-top: 5px; display: block; }

/* ── Right col: book carousel ── */
.hero-carousel-col {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.hero-carousel-label {
    font-size: 11px; font-weight: 700; letter-spacing: 2px;
    text-transform: uppercase; color: #475569;
    margin-bottom: 4px;
}
.hero-carousel-track-wrap {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
}
/* Fade edges */
.hero-carousel-track-wrap::before,
.hero-carousel-track-wrap::after {
    content: '';
    position: absolute;
    top: 0; bottom: 0; width: 48px;
    z-index: 2; pointer-events: none;
}
.hero-carousel-track-wrap::before {
    left: 0;
    background: linear-gradient(to right, #080f1e, transparent);
}
.hero-carousel-track-wrap::after {
    right: 0;
    background: linear-gradient(to left, #080f1e, transparent);
}

.hero-carousel-track {
    display: flex;
    gap: 14px;
    transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    padding: 8px 4px;
}

.hero-carousel-card {
    flex-shrink: 0;
    width: 150px;
    cursor: pointer;
    transition: transform 0.25s ease;
    text-decoration: none;
}
.hero-carousel-card:hover { transform: translateY(-6px) scale(1.03); }
.hero-carousel-card:hover .hcc-overlay { opacity: 1; }

.hcc-cover {
    width: 150px; height: 220px;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5), 0 2px 6px rgba(0,0,0,0.3);
    background: linear-gradient(135deg, #1e3a5f, #0d1f4e);
}
.hcc-cover img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
}
.hcc-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 50%);
    border-radius: 10px;
    opacity: 0;
    transition: opacity 0.25s ease;
    display: flex; align-items: flex-end;
    padding: 10px;
}
.hcc-overlay-text {
    font-size: 11px; font-weight: 600; color: #fff;
    line-height: 1.3;
}
.hcc-badge {
    position: absolute; top: 7px; left: 7px;
    background: rgba(37,99,235,0.9);
    backdrop-filter: blur(4px);
    color: #fff; font-size: 9px; font-weight: 700;
    padding: 2px 7px; border-radius: 20px;
    text-transform: uppercase; letter-spacing: 0.5px;
}
.hcc-info {
    margin-top: 9px;
}
.hcc-cat {
    font-size: 10px; font-weight: 600;
    color: #60A5FA; text-transform: uppercase;
    letter-spacing: 0.5px; margin-bottom: 3px;
}
.hcc-title {
    font-size: 12.5px; font-weight: 600; color: #E2E8F0;
    line-height: 1.35;
    display: -webkit-box; -webkit-line-clamp: 2;
    -webkit-box-orient: vertical; overflow: hidden;
}

/* Carousel controls */
.hero-carousel-controls {
    display: flex; align-items: center; justify-content: space-between;
    margin-top: 4px;
}
.hero-carousel-dots {
    display: flex; gap: 6px; align-items: center;
}
.hc-dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: rgba(255,255,255,0.2);
    transition: all 0.25s ease;
    cursor: pointer;
    border: none;
    padding: 0;
}
.hc-dot.active {
    background: #60A5FA;
    width: 20px;
    border-radius: 3px;
}
.hero-carousel-btns {
    display: flex; gap: 8px;
}
.hc-btn {
    width: 34px; height: 34px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.06);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    backdrop-filter: blur(6px);
}
.hc-btn:hover { background: rgba(59,130,246,0.3); border-color: rgba(59,130,246,0.5); }
.hc-btn svg { pointer-events: none; }

/* Bottom wave */
.hero-wave {
    position: relative; z-index: 1;
    line-height: 0; display: block;
    margin-top: -1px;
}
.hero-wave svg { display: block; width: 100%; }
.hero-book-card {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-md);
    padding: 16px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}
.hero-book-card:hover { background: rgba(255,255,255,0.13); }
.hbc-cover {
    width: 100%; height: 100px;
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.12);
    margin-bottom: 10px; font-size: 36px;
    display: flex; align-items: center; justify-content: center;
}
.hbc-title { font-size: 12.5px; font-weight: 600; line-height: 1.4; color: var(--white); }
.hbc-cat { font-size: 11px; color: #93C5FD; margin-top: 4px; }

/* ─── SECCIÓN GENÉRICA ─── */
.section { padding: 56px 24px; }
.section-inner { max-width: var(--container); margin: 0 auto; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 32px; }
.section-head h2 { font-family: 'Playfair Display', serif; font-size: clamp(22px, 2.5vw, 30px); font-weight: 700; color: var(--black); }
.section-head a { font-size: 14px; font-weight: 600; color: var(--blue-accent); }
.section-head a:hover { text-decoration: underline; }
.section-subtitle { font-size: 15px; color: var(--gray-500); margin-top: 4px; }

/* ─── BOOK GRID ─── */
.book-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(175px, 1fr)); gap: 20px; }
.book-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid transparent;
}
.book-card:hover { box-shadow: var(--shadow-md); border-color: var(--gray-300); transform: translateY(-3px); }
.book-cover {
    width: 100%; aspect-ratio: 2/3;
    background: linear-gradient(135deg, var(--blue-light), #DBEAFE);
    display: flex; align-items: center; justify-content: center;
    font-size: 48px; position: relative; overflow: hidden;
}
.book-cover img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.book-badge {
    position: absolute; top: 8px; left: 8px;
    background: var(--blue-dark); color: var(--white);
    font-size: 10px; font-weight: 700; padding: 3px 8px;
    border-radius: 20px; text-transform: uppercase; letter-spacing: 0.5px;
}
.book-info { padding: 12px; }
.book-category { font-size: 11px; font-weight: 600; color: var(--blue-accent); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 5px; }
.book-title { font-size: 14px; font-weight: 600; color: var(--gray-900); line-height: 1.4; margin-bottom: 4px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.book-author { font-size: 12.5px; color: var(--gray-500); margin-bottom: 8px; }
.book-rating { display: flex; align-items: center; gap: 4px; font-size: 12px; }
.stars { color: var(--gold); }
.rating-count { color: var(--gray-500); }

/* ─── CATEGORÍAS GRID (texto) ─── */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.cat-card {
    display: flex; align-items: center; gap: 14px;
    padding: 16px 18px;
    background: var(--white);
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
}
.cat-card:hover { border-color: var(--blue-dark); background: var(--blue-light); }
.cat-icon { font-size: 24px; flex-shrink: 0; }
.cat-name { font-size: 14px; font-weight: 600; color: var(--gray-800); }
.cat-count { font-size: 12px; color: var(--gray-500); margin-top: 2px; }

/* ─── CATEGORÍAS CON IMAGEN ─── */
.cat-img-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}
.cat-img-card {
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    display: block;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.cat-img-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.cat-img-card:hover .cat-img-overlay { opacity: .55; }
.cat-img-card:hover .cat-img-info { background: rgba(15,52,96,0.92); }
.cat-img-wrap {
    position: relative;
    width: 100%;
    height: 160px;
    overflow: hidden;
}
.cat-img-wrap img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}
.cat-img-card:hover .cat-img-wrap img { transform: scale(1.06); }
.cat-img-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to bottom, transparent 30%, rgba(10,20,40,0.65) 100%);
    opacity: .45;
    transition: var(--transition);
}
.cat-img-info {
    background: rgba(15,52,96,0.82);
    padding: 12px 14px;
    transition: var(--transition);
}
.cat-img-name {
    font-size: 13.5px; font-weight: 700;
    color: var(--white);
    line-height: 1.3;
    margin-bottom: 3px;
}
.cat-img-count {
    font-size: 12px;
    color: #93C5FD;
}
@media (max-width: 1024px) { .cat-img-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px)  { .cat-img-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px)  { .cat-img-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .cat-img-wrap { height: 120px; } }

/* ─── BANNER SUSCRIPCIÓN ─── */
.sub-banner {
    background: var(--black);
    color: var(--white);
    padding: 56px 24px;
    text-align: center;
}
.sub-banner h2 { font-family: 'Playfair Display', serif; font-size: clamp(24px, 3vw, 38px); margin-bottom: 14px; }
.sub-banner p { color: var(--gray-300); font-size: 17px; max-width: 560px; margin: 0 auto 28px; }
.plans-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; max-width: 640px; margin: 0 auto 32px; }
.plan-card {
    background: var(--gray-900);
    border: 1.5px solid var(--gray-800);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    text-align: left;
    transition: var(--transition);
    position: relative;
}
.plan-card.featured { border-color: var(--blue-accent); }
.plan-badge-top { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--blue-accent); color: var(--white); font-size: 11px; font-weight: 700; padding: 3px 14px; border-radius: 20px; white-space: nowrap; }
.plan-name { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: #93C5FD; margin-bottom: 8px; }
.plan-price { font-size: 34px; font-weight: 700; line-height: 1; margin-bottom: 4px; }
.plan-price sup { font-size: 18px; vertical-align: super; }
.plan-period { font-size: 13px; color: var(--gray-500); margin-bottom: 16px; }
.plan-features { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.plan-features li { font-size: 13.5px; color: var(--gray-300); display: flex; align-items: center; gap: 8px; }
.plan-features li::before { content: '✓'; color: var(--blue-accent); font-weight: 700; }
.plan-btn { width: 100%; padding: 11px; text-align: center; background: var(--blue-dark); color: var(--white); border-radius: var(--radius-sm); font-size: 14px; font-weight: 700; transition: var(--transition); }
.plan-btn:hover { background: var(--blue-mid); }
.plan-card.featured .plan-btn { background: var(--blue-accent); }

/* ══════════════════════════════════════════════
   CATÁLOGO — layout ancho + sidebar + 3 columnas
   ══════════════════════════════════════════════ */

/* Page header del catálogo */
.cat-page-header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-300);
    padding: 20px 0;
}
.cat-page-header-inner {
    max-width: 1440px; margin: 0 auto; padding: 0 32px;
}
.cat-page-header-row {
    display: flex; align-items: center;
    justify-content: space-between; gap: 20px;
    flex-wrap: wrap; margin-top: 8px;
}
.cat-page-header-row h1 {
    font-family: 'Playfair Display', serif;
    font-size: 26px; font-weight: 700; color: var(--black);
}
.cat-search-form {
    display: flex; align-items: center;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm);
    overflow: hidden; transition: var(--transition);
}
.cat-search-form:focus-within {
    border-color: var(--blue-accent);
    box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}
.cat-search-form input {
    padding: 9px 14px; border: none; outline: none;
    font-size: 13.5px; color: var(--gray-900);
    background: var(--white); width: 260px;
}
.cat-search-form button {
    padding: 9px 14px; background: var(--blue-dark);
    color: white; border: none; cursor: pointer;
    display: flex; align-items: center;
    transition: var(--transition);
}
.cat-search-form button:hover { background: var(--blue-mid); }

/* Layout principal */
.cat-layout {
    max-width: 1440px; margin: 0 auto;
    padding: 28px 32px 56px;
    display: grid;
    grid-template-columns: 210px 1fr;
    gap: 32px;
    align-items: start;
}

/* ── SIDEBAR ── */
.cat-sidebar {
    position: sticky;
    top: calc(var(--nav-h) + 16px);
    align-self: start;
}
.csb-block { margin-bottom: 24px; }
.csb-title {
    font-size: 11px; font-weight: 800;
    text-transform: uppercase; letter-spacing: 1.2px;
    color: var(--gray-500); margin-bottom: 10px;
}
.csb-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.csb-chip-active {
    display: inline-flex; align-items: center; gap: 5px;
    background: var(--blue-dark); color: white;
    font-size: 11.5px; padding: 4px 10px;
    border-radius: 20px; transition: var(--transition);
}
.csb-chip-active:hover { background: var(--blue-mid); }
.csb-nav { display: flex; flex-direction: column; gap: 1px; }
.csb-nav-item {
    display: flex; align-items: center;
    justify-content: space-between;
    padding: 7px 10px;
    border-radius: 5px;
    font-size: 13px; color: var(--gray-700);
    transition: var(--transition);
    border-left: 2px solid transparent;
}
.csb-nav-item:hover { background: var(--gray-100); color: var(--blue-dark); }
.csb-nav-item.active {
    background: var(--blue-light);
    color: var(--blue-dark);
    font-weight: 700;
    border-left-color: var(--blue-dark);
}
.csb-nav-label { flex: 1; line-height: 1.3; }
.csb-nav-count {
    font-size: 11px; color: var(--gray-500);
    background: var(--gray-100);
    padding: 1px 7px; border-radius: 10px;
    flex-shrink: 0; margin-left: 6px;
}
.csb-nav-item.active .csb-nav-count {
    background: rgba(15,52,96,.12);
    color: var(--blue-dark);
}
/* Promo sidebar */
.csb-promo {
    background: var(--blue-dark); border-radius: 10px;
    padding: 20px 16px; text-align: center; color: white;
    margin-top: 8px;
}
.csb-promo-icon { font-size: 28px; margin-bottom: 8px; }
.csb-promo-title { font-weight: 700; font-size: 14px; margin-bottom: 5px; }
.csb-promo-text { font-size: 12.5px; color: #CBD5E1; line-height: 1.5; margin-bottom: 14px; }
.csb-promo-btn {
    display: block; background: white; color: var(--blue-dark);
    padding: 9px; border-radius: 5px;
    font-size: 13px; font-weight: 700;
    transition: var(--transition);
}
.csb-promo-btn:hover { background: var(--blue-light); }

/* ── TOOLBAR ── */
.cat-toolbar {
    display: flex; align-items: center;
    justify-content: space-between; flex-wrap: wrap; gap: 12px;
    padding-bottom: 16px;
    margin-bottom: 24px;
    border-bottom: 1.5px solid var(--gray-300);
}
.cat-toolbar-count { font-size: 15px; color: var(--gray-700); }
.cat-toolbar-count strong { color: var(--gray-900); font-size: 16px; }
.cat-toolbar-query { font-size: 13.5px; color: var(--gray-500); }
.cat-toolbar-sort { display: flex; align-items: center; gap: 8px; }
.cat-toolbar-sort label { font-size: 13px; color: var(--gray-500); }
.cat-toolbar-sort select {
    padding: 8px 12px;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 13.5px; color: var(--gray-700);
    background: white; outline: none; cursor: pointer;
    transition: var(--transition);
}
.cat-toolbar-sort select:focus { border-color: var(--blue-accent); }

/* ── GRILLA CATÁLOGO ── */
.cat-grid-3col {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
    align-items: start;
}
}

/* ── Tarjeta de libro profesional ── */
.cat3-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: visible;
    display: flex;
    flex-direction: column;
    transition: transform .22s ease;
    border: none;
    box-shadow: none;
}
.cat3-card:hover {
    border-color: transparent;
    box-shadow: none;
    transform: translateY(-5px);
}

/* Portada con sombra de libro real — proporción 2:3 */
.cat3-cover {
    position: relative;
    width: 100%;
    aspect-ratio: 2 / 3;
    overflow: hidden;
    background: #1a1a2e;
    flex-shrink: 0;
    border-radius: 4px 6px 6px 4px;
    box-shadow:
        -3px 3px 6px rgba(0,0,0,.18),
        -6px 6px 14px rgba(0,0,0,.12),
        inset -3px 0 6px rgba(0,0,0,.08);
}
.cat3-cover img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    display: block;
    transition: transform .35s ease;
}
.cat3-card:hover .cat3-cover {
    box-shadow:
        -5px 5px 12px rgba(0,0,0,.22),
        -10px 10px 24px rgba(0,0,0,.15),
        inset -3px 0 6px rgba(0,0,0,.08);
}
.cat3-card:hover .cat3-cover img { transform: scale(1.03); }


/* Badge destacado */
.cat3-badge {
    position: absolute; top: 8px; left: 8px;
    background: var(--blue-dark); color: white;
    font-size: 10px; font-weight: 700;
    padding: 3px 9px; border-radius: 3px;
    letter-spacing: .3px;
    z-index: 2;
}

/* Overlay hover con CTA */
.cat3-hover-cta {
    position: absolute; inset: 0;
    background: rgba(13, 25, 63, 0.52);
    display: flex; align-items: center; justify-content: center;
    opacity: 0;
    transition: opacity .22s ease;
    border-radius: 4px 6px 6px 4px;
}
.cat3-card:hover .cat3-hover-cta { opacity: 1; }
.cat3-hover-cta span {
    display: inline-flex; align-items: center; gap: 7px;
    background: white; color: var(--blue-dark);
    font-size: 12.5px; font-weight: 700;
    padding: 9px 18px; border-radius: 5px;
    box-shadow: 0 4px 12px rgba(0,0,0,.25);
}

/* Info de la tarjeta */
.cat3-info {
    padding: 12px 2px 0;
    display: flex; flex-direction: column;
    gap: 4px; flex: 1;
}
.cat3-cat {
    font-size: 10px; font-weight: 700;
    text-transform: uppercase; letter-spacing: .8px;
    color: var(--blue-accent);
}
.cat3-title {
    font-size: 13.5px; font-weight: 700;
    color: var(--gray-900); line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 0;
}
.cat3-card:hover .cat3-title { color: var(--blue-dark); }
.cat3-author {
    font-size: 12px; color: var(--gray-500);
}
.cat3-footer {
    display: flex; align-items: center;
    justify-content: space-between;
    margin-top: auto; padding-top: 8px;
}
.cat3-stars { color: #F59E0B; font-size: 12px; letter-spacing: 1px; }
.cat3-reads { font-size: 11px; color: var(--gray-400); }
.cat3-sub-tag {
    display: inline-flex; align-items: center; gap: 4px;
    font-size: 10.5px; color: var(--gray-400);
    margin-top: 3px;
}

/* Responsive catálogo */
@media (max-width: 1200px) {
    .cat-layout { padding: 24px 24px 48px; }
    .cat-grid-3col { grid-template-columns: repeat(4, 1fr); gap: 20px; }
}
@media (max-width: 900px) {
    .cat-layout { grid-template-columns: 1fr; }
    .cat-sidebar { position: static; }
    .cat-grid-3col { grid-template-columns: repeat(4, 1fr); gap: 18px; }
}
@media (max-width: 600px) {
    .cat-grid-3col { grid-template-columns: repeat(3, 1fr); gap: 14px; }
}
@media (max-width: 520px) {
    .cat-layout { padding: 16px 16px 40px; }
    .cat-page-header-inner { padding: 0 16px; }
    .cat-grid-3col { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .cat-search-form input { width: 180px; }
}

/* ─── DETALLE DE LIBRO ─── */
.book-detail { max-width: var(--container); margin: 40px auto; padding: 0 24px; display: grid; grid-template-columns: 280px 1fr; gap: 48px; }
.book-detail-cover { position: sticky; top: calc(var(--nav-h) + 20px); align-self: start; }
.book-detail-cover .cover-img {
    width: 100%; aspect-ratio: 2/3;
    background: linear-gradient(135deg, var(--blue-light), #DBEAFE);
    border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    font-size: 80px; box-shadow: var(--shadow-lg);
    overflow: hidden;
}
.book-detail-cover .cover-img img { width: 100%; height: 100%; object-fit: cover; }
.book-detail-actions { margin-top: 16px; display: flex; flex-direction: column; gap: 10px; }
.book-detail-actions .btn-primary { justify-content: center; font-size: 16px; padding: 14px; }
.book-detail-actions .btn-secondary { justify-content: center; }
.bd-breadcrumb { font-size: 13px; color: var(--gray-500); margin-bottom: 12px; display: flex; align-items: center; gap: 6px; }
.bd-breadcrumb a:hover { color: var(--blue-accent); }
.bd-category { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--blue-accent); margin-bottom: 10px; }
.bd-title { font-family: 'Playfair Display', serif; font-size: clamp(26px, 3vw, 36px); font-weight: 700; line-height: 1.25; margin-bottom: 8px; }
.bd-author { font-size: 16px; color: var(--gray-500); margin-bottom: 16px; }
.bd-rating { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.bd-rating .stars { font-size: 18px; }
.bd-meta { display: flex; flex-wrap: wrap; gap: 20px; padding: 20px 0; border-top: 1px solid var(--gray-300); border-bottom: 1px solid var(--gray-300); margin-bottom: 24px; }
.bd-meta-item { text-align: center; }
.bd-meta-item strong { display: block; font-size: 15px; font-weight: 700; color: var(--gray-900); }
.bd-meta-item span { font-size: 12px; color: var(--gray-500); }
.bd-description { font-size: 15.5px; line-height: 1.8; color: var(--gray-700); }

/* ─── PÁGINAS DE AUTH ─── */
.auth-page { min-height: calc(100vh - var(--nav-h)); display: flex; align-items: center; justify-content: center; padding: 40px 24px; background: var(--gray-100); }
.auth-box { background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: 40px 36px; width: 100%; max-width: 420px; }
.auth-logo { text-align: center; margin-bottom: 24px; }
.auth-logo-img { height: 64px; width: 64px; display: inline-block; object-fit: cover; border-radius: 50%; box-shadow: 0 4px 16px rgba(0,0,0,0.12); }
.auth-logo .logo-text { font-size: 26px; }
.auth-box h1 { font-family: 'Playfair Display', serif; font-size: 22px; font-weight: 700; text-align: center; margin-bottom: 6px; }
.auth-box .auth-subtitle { text-align: center; font-size: 14px; color: var(--gray-500); margin-bottom: 28px; }
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 13.5px; font-weight: 600; color: var(--gray-700); margin-bottom: 6px; }
.form-control {
    width: 100%; padding: 11px 14px;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 14.5px; color: var(--gray-900);
    outline: none; transition: var(--transition);
    background: var(--white);
}
.form-control:focus { border-color: var(--blue-accent); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.form-submit { width: 100%; padding: 13px; background: var(--blue-dark); color: var(--white); border-radius: var(--radius-sm); font-size: 15px; font-weight: 700; transition: var(--transition); margin-top: 6px; }
.form-submit:hover { background: var(--blue-mid); }
.auth-footer { text-align: center; margin-top: 20px; font-size: 14px; color: var(--gray-500); }
.auth-footer a { color: var(--blue-accent); font-weight: 600; }

/* ─── GOOGLE AUTH BUTTON ─── */
.btn-google-auth {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--white);
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 14.5px;
    font-weight: 600;
    color: var(--gray-800);
    cursor: pointer;
    transition: background .18s, border-color .18s, box-shadow .18s;
    margin-bottom: 4px;
}
.btn-google-auth:hover {
    background: var(--gray-100);
    border-color: var(--gray-400);
    box-shadow: 0 2px 8px rgba(0,0,0,.07);
}
.btn-google-auth:disabled { opacity: .6; cursor: not-allowed; }

/* ─── AUTH DIVIDER ─── */
.auth-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 18px 0;
    color: var(--gray-400);
    font-size: 13px;
}
.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-200);
}

/* ─── ALERTS ─── */
.alert { padding: 12px 16px; border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.alert-success { background: #F0FDF4; border: 1px solid #BBF7D0; color: #166534; }
.alert-error { background: #FEF2F2; border: 1px solid #FECACA; color: #991B1B; }
.alert-info { background: var(--blue-light); border: 1px solid #BFDBFE; color: var(--blue-dark); }

/* ─── SUBSCRIPTION LOCK ─── */
.lock-banner {
    background: var(--blue-dark); color: var(--white);
    border-radius: var(--radius-lg); padding: 28px 32px;
    text-align: center; margin-top: 20px;
}
.lock-banner svg { width: 36px; height: 36px; margin: 0 auto 12px; }
.lock-banner h3 { font-family: 'Playfair Display', serif; font-size: 20px; margin-bottom: 8px; }
.lock-banner p { color: #CBD5E1; font-size: 14.5px; margin-bottom: 18px; }

/* ─── READER ─── */
.reader-page { background: #F8F8F8; min-height: calc(100vh - var(--nav-h)); }
.reader-toolbar {
    background: var(--black); color: var(--white);
    padding: 12px 24px; display: flex; align-items: center; gap: 16px;
    font-size: 14px;
}
.reader-toolbar .book-title-bar { font-weight: 600; flex: 1; }
.reader-frame { max-width: 860px; margin: 32px auto; padding: 0 24px; background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); min-height: 500px; }
.reader-frame iframe { width: 100%; height: 80vh; border: none; border-radius: var(--radius-lg); }

/* ─── BIBLIOTECA ─── */
.library-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; }
.library-card { border: 1.5px solid var(--gray-300); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition); }
.library-card:hover { box-shadow: var(--shadow-md); border-color: var(--blue-dark); }
.library-cover { height: 160px; background: linear-gradient(135deg, var(--blue-light), #DBEAFE); display: flex; align-items: center; justify-content: center; font-size: 52px; position: relative; }
.progress-bar-outer { position: absolute; bottom: 0; left: 0; right: 0; height: 4px; background: rgba(0,0,0,0.15); }
.progress-bar-inner { height: 100%; background: var(--blue-accent); transition: width 0.4s ease; }
.library-info { padding: 14px; }
.library-info h4 { font-size: 14px; font-weight: 600; line-height: 1.4; margin-bottom: 4px; }
.library-info .progress-text { font-size: 12px; color: var(--gray-500); }

/* ─── BREADCRUMB / PAGE HEADER ─── */
.page-header { background: var(--gray-100); border-bottom: 1px solid var(--gray-300); padding: 22px 24px; }
.page-header-inner { max-width: var(--container); margin: 0 auto; }
.page-header h1 { font-family: 'Playfair Display', serif; font-size: 26px; font-weight: 700; color: var(--black); }
.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--gray-500); margin-bottom: 6px; }
.breadcrumb a { color: var(--blue-accent); }
.breadcrumb a:hover { text-decoration: underline; }

/* ─── EMPTY STATE ─── */
.empty-state { text-align: center; padding: 64px 24px; color: var(--gray-500); }
.empty-state svg { width: 56px; height: 56px; margin: 0 auto 16px; opacity: .4; }
.empty-state h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: var(--gray-700); }
.empty-state p { font-size: 14.5px; }

/* ─── PAGINATION ─── */
.pagination { display: flex; align-items: center; gap: 4px; margin-top: 36px; justify-content: center; }
.pagination a, .pagination span {
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    border: 1.5px solid var(--gray-300); border-radius: var(--radius-sm);
    font-size: 14px; color: var(--gray-700); transition: var(--transition);
}
.pagination a:hover { border-color: var(--blue-dark); color: var(--blue-dark); background: var(--blue-light); }
.pagination .current { background: var(--blue-dark); border-color: var(--blue-dark); color: var(--white); font-weight: 700; }

/* ─── ADMIN ─── */
.admin-layout { display: grid; grid-template-columns: 220px 1fr; min-height: calc(100vh - var(--nav-h)); }
.admin-sidebar { background: var(--black); color: var(--white); padding: 24px 0; }
.admin-sidebar nav a { display: flex; align-items: center; gap: 10px; padding: 11px 24px; font-size: 14px; color: #CBD5E1; transition: var(--transition); }
.admin-sidebar nav a:hover, .admin-sidebar nav a.active { background: rgba(255,255,255,0.08); color: var(--white); }
.admin-sidebar .sidebar-logo { padding: 0 24px 24px; font-family: 'Playfair Display', serif; font-size: 18px; font-weight: 700; border-bottom: 1px solid var(--gray-800); margin-bottom: 8px; }
.admin-content { padding: 32px; background: var(--gray-100); }
.admin-card { background: var(--white); border-radius: var(--radius-md); padding: 24px; box-shadow: var(--shadow-sm); }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--white); border-radius: var(--radius-md); padding: 20px 24px; box-shadow: var(--shadow-sm); border-left: 4px solid var(--blue-accent); }
.stat-card h3 { font-size: 28px; font-weight: 700; color: var(--gray-900); }
.stat-card p { font-size: 13px; color: var(--gray-500); margin-top: 4px; }
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; padding: 11px 14px; background: var(--gray-100); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--gray-500); border-bottom: 1px solid var(--gray-300); }
td { padding: 12px 14px; border-bottom: 1px solid var(--gray-100); color: var(--gray-700); }
tr:hover td { background: var(--gray-100); }
.badge { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 20px; font-size: 11.5px; font-weight: 600; }
.badge-green { background: #DCFCE7; color: #166534; }
.badge-red { background: #FEF2F2; color: #991B1B; }
.badge-blue { background: var(--blue-light); color: var(--blue-dark); }
.action-btn { padding: 5px 12px; border-radius: var(--radius-sm); font-size: 12.5px; font-weight: 600; transition: var(--transition); border: 1.5px solid; }
.action-btn-edit { color: var(--blue-accent); border-color: var(--blue-accent); }
.action-btn-edit:hover { background: var(--blue-light); }
.action-btn-del { color: var(--red); border-color: var(--red); }
.action-btn-del:hover { background: #FEF2F2; }

/* ─── FOOTER ─── */
.footer { background: var(--black); color: var(--white); margin-top: auto; }
.footer-inner { max-width: var(--container); margin: 0 auto; padding: 52px 24px 40px; display: grid; grid-template-columns: 1fr 2fr; gap: 60px; }
.footer-brand .footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-brand .footer-logo span:last-child { font-family: 'Playfair Display', serif; font-size: 20px; font-weight: 700; }
.footer-logo-img { height: 44px; width: 44px; display: block; object-fit: cover; border-radius: 50%; opacity: 0.92; }
.footer-brand p { font-size: 14px; color: #9CA3AF; line-height: 1.7; max-width: 280px; }
.footer-social { display: flex; gap: 12px; margin-top: 18px; }
.footer-social a { width: 36px; height: 36px; border: 1px solid #374151; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #9CA3AF; transition: var(--transition); }
.footer-social a:hover { border-color: var(--white); color: var(--white); }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col h4 { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: #9CA3AF; margin-bottom: 14px; }
.footer-col a { display: block; font-size: 14px; color: #D1D5DB; margin-bottom: 8px; transition: var(--transition); }
.footer-col a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid #1F2937; padding: 18px 24px; max-width: var(--container); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: #6B7280; }

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; padding: 60px 20px 48px; gap: 40px; }
    .hero-carousel-col { display: none; }
    .hero h1 { font-size: clamp(34px, 9vw, 50px); }
    .hero-stats { gap: 0; }
    .hero-stat { padding: 0 20px; }
    .book-detail { grid-template-columns: 200px 1fr; gap: 32px; }
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
    .footer-links { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .nav-search, .nav-links { display: none; }
    .hamburger { display: flex; }
    .book-detail { grid-template-columns: 1fr; }
    .book-detail-cover { position: static; max-width: 200px; }
    .footer-links { grid-template-columns: repeat(2, 1fr); }
    .admin-layout { grid-template-columns: 1fr; }
    .admin-sidebar { display: none; }
}
@media (max-width: 480px) {
    .book-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-links { grid-template-columns: 1fr; }
    .plans-row { grid-template-columns: 1fr; }
}
/* ══════════════════════════════════════════════
   LIBRO — hero de portada
   ══════════════════════════════════════════════ */
.libro-hero {
    position: relative;
    min-height: 420px;
    display: flex; align-items: flex-end;
    overflow: hidden;
}
.libro-hero-bg {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    filter: blur(20px) brightness(.35) saturate(1.4);
    transform: scale(1.08);
}
.libro-hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to right, rgba(8,20,50,.75) 0%, rgba(8,20,50,.55) 60%, transparent 100%);
}
.libro-hero-inner {
    position: relative; z-index: 2;
    max-width: var(--container); margin: 0 auto;
    width: 100%; padding: 48px 24px 40px;
    display: flex; gap: 40px; align-items: flex-end;
}
.libro-hero-cover {
    flex-shrink: 0;
    width: 190px;
    position: relative;
}
.libro-hero-cover img {
    width: 100%; aspect-ratio: 2/3;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0,0,0,.6);
}
.libro-hero-badge {
    position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
    background: var(--blue-accent); color: white;
    font-size: 11px; font-weight: 700;
    padding: 3px 14px; border-radius: 20px; white-space: nowrap;
}
.libro-hero-info { flex: 1; color: white; }
.libro-hero-breadcrumb {
    display: flex; align-items: center; flex-wrap: wrap; gap: 5px;
    font-size: 12px; color: #94A3B8; margin-bottom: 14px;
}
.libro-hero-breadcrumb a { color: #93C5FD; transition: var(--transition); }
.libro-hero-breadcrumb a:hover { color: white; }
.libro-hero-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(22px, 3.5vw, 38px);
    font-weight: 700; line-height: 1.2;
    color: white; margin-bottom: 8px;
}
.libro-hero-author { font-size: 15px; color: #CBD5E1; margin-bottom: 12px; }
.libro-hero-rating { margin-bottom: 14px; display: flex; align-items: center; gap: 6px; }
.libro-hero-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.lh-chip {
    display: inline-flex; align-items: center; gap: 5px;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.2);
    color: #E2E8F0; font-size: 12.5px;
    padding: 5px 12px; border-radius: 20px;
}
.libro-hero-cta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.lh-btn-read {
    display: inline-flex; align-items: center; gap: 8px;
    background: white; color: var(--blue-dark);
    padding: 12px 24px; border-radius: 5px;
    font-size: 14.5px; font-weight: 800;
    transition: var(--transition);
    border: none; cursor: pointer;
}
.lh-btn-read:hover { background: var(--blue-light); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,0,0,.25); }
.lh-btn-fav {
    display: inline-flex; align-items: center; gap: 7px;
    background: rgba(255,255,255,.1);
    border: 1.5px solid rgba(255,255,255,.3);
    color: white; padding: 12px 18px;
    border-radius: 5px; font-size: 14px; font-weight: 600;
    transition: var(--transition); cursor: pointer;
}
.lh-btn-fav:hover { background: rgba(255,255,255,.2); }
.lh-btn-fav.active { color: #FCA5A5; border-color: #FCA5A5; }
.libro-hero-progress { margin-top: 4px; max-width: 420px; }

/* ── CUERPO ── */
.libro-body {
    max-width: var(--container); margin: 0 auto;
    padding: 40px 24px;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    align-items: start;
}
.libro-section { margin-bottom: 36px; }
.libro-section:last-child { margin-bottom: 0; }
.libro-section-title {
    font-family: 'Playfair Display', serif;
    font-size: 20px; font-weight: 700;
    color: var(--black);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--blue-light);
}
.libro-desc {
    font-size: 15.5px; line-height: 1.85;
    color: var(--gray-700);
}
.libro-autor-box {
    display: flex; gap: 16px; align-items: flex-start;
    background: var(--gray-100); border-radius: 10px; padding: 20px;
}
.libro-autor-avatar {
    width: 48px; height: 48px; flex-shrink: 0;
    background: var(--blue-dark); color: white;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; font-weight: 700;
}
/* Aside */
.libro-aside { display: flex; flex-direction: column; gap: 16px; position: sticky; top: calc(var(--nav-h) + 20px); }
.libro-aside-box {
    background: var(--white);
    border: 1.5px solid var(--gray-300);
    border-radius: 10px; padding: 20px;
}
.libro-aside-title {
    font-size: 13px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 1px;
    color: var(--gray-500); margin-bottom: 14px;
}
.libro-ficha { display: flex; flex-direction: column; gap: 10px; }
.libro-ficha > div {
    display: flex; justify-content: space-between;
    align-items: flex-start; gap: 10px;
    font-size: 13.5px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--gray-100);
}
.libro-ficha > div:last-child { border-bottom: none; padding-bottom: 0; }
.libro-ficha dt { color: var(--gray-500); flex-shrink: 0; }
.libro-ficha dd { font-weight: 600; color: var(--gray-800); text-align: right; }

/* Responsive libro */
@media (max-width: 1024px) {
    .libro-body { grid-template-columns: 1fr; }
    .libro-aside { position: static; flex-direction: row; flex-wrap: wrap; }
    .libro-aside-box { flex: 1; min-width: 260px; }
}
@media (max-width: 768px) {
    .libro-hero-inner { flex-direction: column; align-items: flex-start; gap: 20px; }
    .libro-hero-cover { width: 130px; }
    .libro-hero-title { font-size: 22px; }
    .libro-aside { flex-direction: column; }
}
/* ══════════════════════════════════════════════
   ADMIN — Upload zones
   ══════════════════════════════════════════════ */
.upload-zone {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-md);
    padding: 20px 16px;
    text-align: center;
    cursor: pointer;
    transition: all .2s ease;
    background: var(--gray-100);
    min-height: 110px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--blue-accent);
    background: var(--blue-light);
}
.upload-zone-icon { font-size: 26px; line-height: 1; }
.upload-zone-label { font-size: 12.5px; color: var(--gray-500); }
.upload-zone-existing {
    font-size: 12.5px; color: var(--blue-dark);
    font-weight: 600; margin-bottom: 6px;
    background: white; padding: 6px 12px;
    border-radius: 4px; border: 1px solid var(--blue-light);
}