/* ============================================================
   GAMELIT.ES — MAIN STYLESHEET
   ============================================================ */

/* ── 1. CSS Variables ─────────────────────────────────────── */
:root[data-theme='dark'] {
    --bg-deep: #050510;
    --bg-card: #0d0d1a;
    --bg-glass: rgba(13, 13, 26, 0.75);
    --accent-cyan: #00f3ff;
    --accent-purple: #a855f7;
    --accent-pink: #ec4899;
    --accent-glow: rgba(0, 243, 255, 0.25);
    --accent-glow-purple: rgba(168, 85, 247, 0.25);
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border-subtle: rgba(255, 255, 255, 0.07);
    --hero-gradient-top: #00f3ff;
    --hero-gradient-mid: #a855f7;
    --hero-gradient-bottom: #ec4899;
    --card-shadow: rgba(0, 0, 0, 0.6);
    --btn-gradient: linear-gradient(135deg, #00f3ff 0%, #a855f7 100%);
    --btn-gradient-hover: linear-gradient(135deg, #a855f7 0%, #ec4899 100%);
    --tag-bg: rgba(168, 85, 247, 0.12);
    --tag-border: rgba(168, 85, 247, 0.35);
    --tag-text: #c084fc;
    --footer-border: linear-gradient(to right, transparent, rgba(168,85,247,0.5), rgba(0,243,255,0.5), transparent);
    --divider-gradient: linear-gradient(to right, transparent, rgba(168,85,247,0.4) 20%, rgba(0,243,255,0.4) 80%, transparent);
    --badge-bg: rgba(0, 243, 255, 0.07);
    --badge-border: rgba(0, 243, 255, 0.28);
    --orb-1: rgba(168, 85, 247, 0.18);
    --orb-2: rgba(0, 243, 255, 0.14);
    --orb-3: rgba(236, 72, 153, 0.10);
}

:root[data-theme='light'] {
    --bg-deep: #f0f4f8;
    --bg-card: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.85);
    --accent-cyan: #0284c7;
    --accent-purple: #7c3aed;
    --accent-pink: #db2777;
    --accent-glow: rgba(2, 132, 199, 0.15);
    --accent-glow-purple: rgba(124, 58, 237, 0.15);
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-subtle: rgba(0, 0, 0, 0.09);
    --hero-gradient-top: #0284c7;
    --hero-gradient-mid: #7c3aed;
    --hero-gradient-bottom: #db2777;
    --card-shadow: rgba(0, 0, 0, 0.08);
    --btn-gradient: linear-gradient(135deg, #0284c7 0%, #7c3aed 100%);
    --btn-gradient-hover: linear-gradient(135deg, #7c3aed 0%, #db2777 100%);
    --tag-bg: rgba(124, 58, 237, 0.07);
    --tag-border: rgba(124, 58, 237, 0.22);
    --tag-text: #7c3aed;
    --footer-border: linear-gradient(to right, transparent, rgba(124,58,237,0.4), rgba(2,132,199,0.4), transparent);
    --divider-gradient: linear-gradient(to right, transparent, rgba(124,58,237,0.3) 20%, rgba(2,132,199,0.3) 80%, transparent);
    --badge-bg: rgba(2, 132, 199, 0.07);
    --badge-border: rgba(2, 132, 199, 0.25);
    --orb-1: rgba(124, 58, 237, 0.07);
    --orb-2: rgba(2, 132, 199, 0.06);
    --orb-3: rgba(219, 39, 119, 0.05);
}

:root {
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}


/* ── 2. Base Reset ────────────────────────────────────────── */
* { margin: 0; padding: 0; box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-purple) var(--bg-deep);
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, var(--accent-purple), var(--accent-cyan));
    border-radius: 8px;
    border: 2px solid var(--bg-deep);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
    box-shadow: 0 0 8px var(--accent-glow);
}


/* ── 3. Body & Background ─────────────────────────────────── */
body {
    background-color: var(--bg-deep);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -3;
    background-color: var(--bg-deep);
}

/* Ambient Orb Elements */
.ambient-orbs {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
}

.orb-1 {
    width: 700px;
    height: 700px;
    top: -200px;
    left: -150px;
    background: var(--orb-1);
    animation: orbPulse1 20s ease-in-out infinite alternate;
}

.orb-2 {
    width: 600px;
    height: 600px;
    bottom: -150px;
    right: -100px;
    background: var(--orb-2);
    animation: orbPulse2 24s ease-in-out infinite alternate;
    animation-delay: -8s;
}

.orb-3 {
    width: 450px;
    height: 450px;
    top: 40%;
    left: 45%;
    background: var(--orb-3);
    animation: orbPulse1 17s ease-in-out infinite alternate;
    animation-delay: -5s;
}

@keyframes orbPulse1 {
    0%   { opacity: 0.7; transform: translate(0, 0) scale(1); }
    50%  { opacity: 1;   transform: translate(50px, 70px) scale(1.2); }
    100% { opacity: 0.6; transform: translate(-30px, 40px) scale(0.9); }
}

@keyframes orbPulse2 {
    0%   { opacity: 0.6; transform: translate(0, 0) scale(1); }
    50%  { opacity: 0.95; transform: translate(-60px, -50px) scale(1.18); }
    100% { opacity: 0.7; transform: translate(40px, -25px) scale(1.05); }
}


/* ── 4. Typography ────────────────────────────────────────── */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--text-main);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--text-main);
    filter: drop-shadow(0 0 6px var(--accent-cyan));
}


/* ── 5. Layout ────────────────────────────────────────────── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 0;
}


/* ── 6. Header & Navigation ──────────────────────────────── */
.site-header {
    padding: 1.1rem 0;
    background: var(--bg-glass);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    font-size: 1.7rem;
    font-weight: 900;
    letter-spacing: -0.04em;
    color: var(--text-main);
    display: flex;
    align-items: center;
}

.logo span {
    color: var(--accent-cyan);
    text-shadow: 0 0 20px var(--accent-glow);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.nav-links a:hover {
    color: var(--accent-cyan);
    filter: none;
    transform: translateY(-2px);
}

/* Nav Actions (theme toggle + hamburger) */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Theme Toggle Button */
.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-main);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    font-size: 1rem;
    flex-shrink: 0;
}

.theme-toggle:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    box-shadow: 0 0 14px var(--accent-glow);
}

.theme-toggle .light-icon,
[data-theme='light'] .theme-toggle .dark-icon {
    display: none;
}

[data-theme='light'] .theme-toggle .light-icon {
    display: block;
}

/* Hamburger Button */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 38px;
    height: 38px;
    background: transparent;
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    cursor: pointer;
    padding: 9px;
    transition: var(--transition-smooth);
}

.nav-hamburger span {
    display: block;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: var(--transition-smooth);
    transform-origin: center;
}

.nav-hamburger:hover {
    border-color: var(--accent-cyan);
}

.nav-hamburger.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.is-open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.nav-hamburger.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Drawer */
.mobile-nav {
    display: flex;
    flex-direction: column;
    background: var(--bg-glass);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    padding: 0 2rem;
    position: absolute;
    top: 100%;
    left: -2rem;
    right: -2rem;
    z-index: 999;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    pointer-events: none;
}

.mobile-nav.is-open {
    max-height: 350px;
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border-subtle);
    pointer-events: auto;
}

.mobile-nav a {
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
    letter-spacing: 0.03em;
}

.mobile-nav a:last-child { border-bottom: none; }

.mobile-nav a:hover {
    color: var(--accent-cyan);
    filter: none;
    padding-left: 0.5rem;
}


/* ── 7. Hero Section ──────────────────────────────────────── */
.hero {
    padding: 9rem 0 6rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    animation: slideUp 0.9s cubic-bezier(0.23, 1, 0.32, 1) both;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 65%);
    z-index: -1;
    pointer-events: none;
}

/* Hero Badge / Eyebrow */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 1.1rem;
    border-radius: 999px;
    background: var(--badge-bg);
    border: 1px solid var(--badge-border);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-cyan);
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    animation: badgePulse 3s ease-in-out infinite, slideIn 0.6s 0.1s ease-out both;
}

.hero-badge i {
    font-size: 0.65rem;
    animation: spinStar 6s linear infinite;
}

.hero h1 {
    font-size: clamp(2.8rem, 10vw, 5.5rem);
    margin-bottom: 1.5rem;
    font-weight: 900;
    background: linear-gradient(135deg,
        var(--hero-gradient-top) 0%,
        var(--hero-gradient-mid) 50%,
        var(--hero-gradient-bottom) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.03em;
    animation: slideUp 0.8s 0.2s cubic-bezier(0.23, 1, 0.32, 1) both;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 680px;
    margin: 0 auto 3.5rem;
    font-weight: 300;
    line-height: 1.85;
    animation: slideIn 0.7s 0.35s ease-out both;
}

.btn-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: slideIn 0.6s 0.5s ease-out both;
}


/* ── 8. Page Headers ──────────────────────────────────────── */
.page-header {
    padding: 5rem 0 3rem;
    text-align: center;
    background: radial-gradient(ellipse 80% 60% at 50% 0%, var(--accent-glow-purple) 0%, transparent 70%);
    margin-bottom: 4rem;
    animation: slideUp 0.8s 0.1s ease-out both;
}

.page-header h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    margin-bottom: 1.5rem;
    font-weight: 900;
    background: linear-gradient(135deg,
        var(--hero-gradient-top) 0%,
        var(--hero-gradient-mid) 55%,
        var(--hero-gradient-bottom) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header p {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
}


/* ── 9. Grid & Cards ──────────────────────────────────────── */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 3rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 18px;
    overflow: hidden;
    transition: var(--transition-smooth);
    position: relative;
    display: flex;
    flex-direction: column;
    opacity: 0;
    animation: slideUp 0.7s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

.card:nth-child(1) { animation-delay: 0.10s; }
.card:nth-child(2) { animation-delay: 0.18s; }
.card:nth-child(3) { animation-delay: 0.26s; }
.card:nth-child(4) { animation-delay: 0.34s; }
.card:nth-child(5) { animation-delay: 0.42s; }
.card:nth-child(6) { animation-delay: 0.50s; }
.card:nth-child(7) { animation-delay: 0.55s; }
.card:nth-child(8) { animation-delay: 0.60s; }

.card:hover {
    transform: translateY(-14px) scale(1.02);
    border-color: var(--accent-purple);
    box-shadow:
        0 30px 60px var(--card-shadow),
        0 0 0 1px rgba(168, 85, 247, 0.3),
        0 0 50px var(--accent-glow-purple);
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, var(--bg-card));
    opacity: 0.9;
    z-index: 1;
    pointer-events: none;
}

.card-img {
    aspect-ratio: 2/3;
    overflow: hidden;
}

.card-img img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    transition: var(--transition-smooth);
}

.card:hover .card-img img {
    transform: scale(1.08);
}

.card-content {
    padding: 2rem 2.5rem 3rem;
    position: relative;
    z-index: 2;
    margin-top: -80px;
    background: linear-gradient(to top, var(--bg-card) 65%, transparent);
    display: flex;
    flex-direction: column;
}

/* Genre Tag Pill */
.genre-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.22rem 0.8rem;
    border-radius: 999px;
    background: var(--tag-bg);
    border: 1px solid var(--tag-border);
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--tag-text);
    margin-bottom: 0.9rem;
    width: fit-content;
}

.genre-tag i { font-size: 0.6rem; }

.card-title {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    line-height: 1.2;
}

.card-author {
    color: var(--accent-purple);
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.76rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-cyan);
    transition: var(--transition-smooth);
    margin-top: auto;
}

.card-link:hover {
    gap: 0.75rem;
    filter: none;
    color: var(--accent-cyan);
    text-shadow: 0 0 10px var(--accent-glow);
}

/* Author Cards */
.author-card {
    text-align: center;
    padding: 3rem 2rem 2.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
}

.author-card:hover {
    border-color: var(--accent-purple);
    box-shadow:
        0 20px 50px var(--card-shadow),
        0 0 35px var(--accent-glow-purple);
}

.author-card .author-img {
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 50%;
    width: 140px;
    height: 140px;
    margin-bottom: 1.75rem;
    border: 3px solid var(--accent-purple);
    padding: 4px;
    background: var(--bg-card);
    transition: var(--transition-smooth);
    flex-shrink: 0;
}

.author-card:hover .author-img {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 22px var(--accent-glow);
}

.author-card .author-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    border-radius: 50%;
}

.author-card .card-content {
    margin-top: 0;
    background: transparent;
    padding: 0 0.5rem 0;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.author-rank {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--accent-purple);
    margin-bottom: 1.5rem;
}


/* ── 10. Section Typography ──────────────────────────────── */
.section-eyebrow {
    display: block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--accent-cyan);
    margin-bottom: 0.6rem;
}

.heading-gradient {
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Section Divider */
.section-divider {
    height: 1px;
    border: none;
    background: var(--divider-gradient);
    margin: 0;
}

.section-separator {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

[data-theme='light'] .section-separator {
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}


/* ── 11. Individual Book Page ────────────────────────────── */
.book-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 6rem;
    align-items: start;
    padding-top: 3rem;
}

.book-layout aside {
    position: sticky;
    top: 110px;
    align-self: start;
}

.book-cover {
    border-radius: 18px;
    box-shadow: 0 40px 80px var(--card-shadow), 0 0 30px var(--accent-glow-purple);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}


/* ── 12. Buttons ─────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 2.2rem;
    border-radius: 12px;
    font-weight: 800;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--btn-gradient);
    color: #fff;
    box-shadow: 0 4px 20px rgba(168, 85, 247, 0.3), 0 2px 8px rgba(0, 243, 255, 0.2);
}

.btn-primary:hover {
    background: var(--btn-gradient-hover);
    color: #fff;
    filter: none;
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 8px 30px rgba(168, 85, 247, 0.45), 0 4px 12px rgba(236, 72, 153, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-subtle);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: rgba(0, 243, 255, 0.05);
    filter: none;
    transform: translateY(-3px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-full { width: 100%; }


/* ── 13. Glassmorphism & Prose ───────────────────────────── */
.glass {
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.prose {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.15rem;
    color: var(--text-muted);
    font-weight: 400;
    line-height: 1.95;
}

.prose h1, .prose h2, .prose h3 {
    color: var(--text-main);
    margin-top: 3.5rem;
    margin-bottom: 1.25rem;
    scroll-margin-top: 120px;
}

.prose p { margin-bottom: 1.75rem; }
.prose strong { color: var(--text-main); font-weight: 600; }


/* ── 14. Footer ──────────────────────────────────────────── */
.site-footer {
    margin-top: 6rem;
    padding: 5rem 0 2.5rem;
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--footer-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand .logo {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    display: inline-flex;
}

.footer-brand p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.85;
    max-width: 280px;
    margin-bottom: 1.75rem;
}

.footer-social {
    display: flex;
    gap: 0.65rem;
}

.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: var(--transition-smooth);
}

.footer-social a:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: rgba(0, 243, 255, 0.07);
    box-shadow: 0 0 12px var(--accent-glow);
    filter: none;
    transform: translateY(-2px);
}

.footer-col h5 {
    font-family: var(--font-heading);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.footer-col ul li a {
    font-size: 0.88rem;
    color: var(--text-muted);
    transition: var(--transition-smooth);
}

.footer-col ul li a:hover {
    color: var(--text-main);
    filter: none;
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid var(--border-subtle);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0.65;
}


/* ── 15. Ficha Técnica ───────────────────────────────────── */
.ficha-tecnica {
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: 2.5rem;
    animation: slideIn 0.7s 0.3s ease-out both;
}

.ficha-tecnica h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--text-muted);
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 1.25rem;
}

.ficha-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.ficha-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.88rem;
}

.ficha-label {
    color: var(--accent-cyan);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ficha-label i { font-size: 0.75rem; opacity: 0.8; }

.ficha-value { color: var(--text-main); text-align: right; }

.ficha-value a { color: var(--text-main); border-bottom: 1px solid transparent; }
.ficha-value a:hover { color: var(--accent-cyan); filter: none; border-bottom-color: var(--accent-cyan); }


/* ── 16. Utilities ───────────────────────────────────────── */
.text-cyan    { color: var(--accent-cyan); text-shadow: 0 0 10px var(--accent-glow); }
.text-purple  { color: var(--accent-purple); }
.text-muted   { color: var(--text-muted); }
.uppercase    { text-transform: uppercase; }
.tracking-widest { letter-spacing: 0.2rem; }
.font-bold    { font-weight: 700; }
.opacity-70   { opacity: 0.7; }
.w-full       { width: 100%; }

/* Spacing */
.mb-2  { margin-bottom: 0.5rem; }
.mb-4  { margin-bottom: 1rem; }
.mb-6  { margin-bottom: 1.5rem; }
.mb-8  { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mt-8  { margin-top: 2rem; }
.mt-16 { margin-top: 4rem; }
.mt-20 { margin-top: 5rem; }
.pt-20 { padding-top: 5rem; }
.p-10  { padding: 2.5rem; }
.ml-2  { margin-left: 0.5rem; }
.mr-2  { margin-right: 0.5rem; }


/* ── 17. Animations ──────────────────────────────────────── */
@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes badgePulse {
    0%, 100% { box-shadow: 0 0 0 0 transparent; }
    50%       { box-shadow: 0 0 16px 2px var(--badge-border); }
}

@keyframes spinStar {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

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


/* ── 18. Responsive ──────────────────────────────────────── */
@media (max-width: 992px) {
    .book-layout { grid-template-columns: 1fr; gap: 3rem; }
    .nav-links { gap: 1.5rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .section { padding: 4rem 0; }
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }
    .hero { padding: 6rem 0 4rem; }
    .hero h1 { font-size: 2.6rem; letter-spacing: -0.02em; }
    .hero p { font-size: 1.1rem; }
    .grid { gap: 2rem; }
    .page-header { padding: 6rem 0 3rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .btn-group { flex-direction: column; align-items: center; }
    .btn-group .btn { width: 100%; max-width: 320px; }
}