/* ======================================================================
   CIO CODEX THEME – BOOK LANDING PAGE
   Estilo: Dark glassmorphism, cyan accents, moderno e premium.
   Alinhado ao design system do CIO Codex Theme.
   ====================================================================== */

/* ══════════════════════════════════════════
   SCROLL REVEAL ANIMATIONS
   ══════════════════════════════════════════ */

/* ── Base hidden state ── */
[data-anim] {
    opacity: 0;
    will-change: transform, opacity;
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── Direction-specific offsets ── */
[data-anim="fade-up"]    { transform: translateY(48px); }
[data-anim="fade-down"]  { transform: translateY(-48px); }
[data-anim="fade-right"] { transform: translateX(-48px); }
[data-anim="fade-left"]  { transform: translateX(48px); }
[data-anim="zoom-in"]    { transform: scale(0.92); }

/* ── Revealed state ── */
[data-anim].cio-anim-visible {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1);
}

/* ── Respect prefers-reduced-motion ── */
@media (prefers-reduced-motion: reduce) {
    [data-anim] {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ── Tokens ── */
:root {
    --bk-bg: #060a12;
    --bk-bg-alt: #0a0e17;
    --bk-surface: #0d1222;
    --bk-surface-hover: #111828;
    --bk-accent: #00c8ff;
    --bk-accent-dim: rgba(0, 200, 255, 0.12);
    --bk-accent-glow: rgba(0, 200, 255, 0.15);
    --bk-border: rgba(255, 255, 255, 0.06);
    --bk-border-accent: rgba(0, 200, 255, 0.18);
    --bk-text: #ffffff;
    --bk-text-muted: rgba(255, 255, 255, 0.6);
    --bk-text-subtle: rgba(255, 255, 255, 0.4);
    --bk-radius: 16px;
    --bk-radius-sm: 10px;
    --bk-radius-xs: 8px;
    --bk-transition: 0.4s cubic-bezier(0.22, 0.68, 0, 1.1);
    --bk-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ── Base ── */
.cio-book {
    background: var(--bk-bg);
    color: var(--bk-text);
    font-family: var(--bk-font);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}
.cio-book *, .cio-book *::before, .cio-book *::after {
    box-sizing: border-box;
}
.cio-book a { text-decoration: none; color: inherit; }

/* ── Container ── */
.cio-book-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Glass util ── */
.cio-book-glass {
    background: rgba(13, 18, 34, 0.65);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--bk-border);
    border-radius: var(--bk-radius);
}

/* ── Section ── */
.cio-book-section {
    padding: 80px 0;
    position: relative;
}

/* ── Section Header ── */
.cio-book-section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}
.cio-book-section-header h2 {
    font-size: 36px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.03em;
    margin: 12px 0 0;
}
.cio-book-section-subtitle {
    color: var(--bk-text-muted);
    font-size: 16px;
    line-height: 1.75;
    margin: 16px 0 0;
}

/* ── Prelabel ── */
.cio-book-prelabel {
    display: inline-block;
    color: var(--bk-accent);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2.5px;
    text-transform: uppercase;
}

/* ══════════════════════════════════════════
   HERO
   ══════════════════════════════════════════ */
.cio-book-hero {
    position: relative;
    padding: 100px 0 80px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.cio-book-hero__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.cio-book-hero__content { max-width: 560px; }

/* ── Hero brand (logo + title) ── */
.cio-book-hero__brand {
    text-align: center;
    margin-bottom: 4px;
}

/* ── Hero logo ── */
.cio-book-hero__logo-wrap {
    display: inline-block;
    margin-bottom: 8px;
}
.cio-book-hero__logo {
    display: block;
    height: 120px;
    width: auto;
}

.cio-book-hero__title {
    font-size: 56px;
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin: 12px 0 0;
    font-weight: 400;
}
.cio-book-hero__title-the {
    font-weight: 400;
    color: var(--bk-text-muted);
}
.cio-book-hero__title strong {
    font-weight: 800;
    color: var(--bk-text);
    display: block;
}
.cio-book-hero__subtitle {
    font-size: 20px;
    font-weight: 500;
    color: var(--bk-text-muted);
    margin: 20px 0 0;
    line-height: 1.5;
}
.cio-book-hero__desc {
    font-size: 16px;
    color: var(--bk-text-subtle);
    line-height: 1.7;
    margin: 16px 0 0;
}
.cio-book-hero__actions {
    display: flex;
    gap: 14px;
    margin: 36px 0 0;
    flex-wrap: wrap;
}
.cio-book-hero__author {
    margin: 24px 0 0;
    font-size: 14px;
    color: var(--bk-text-subtle);
}
.cio-book-hero__author strong {
    color: var(--bk-text);
}

/* ── Book cover visual ── */
.cio-book-hero__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}
.cio-book-hero__book-wrapper {
    position: relative;
    max-width: 380px;
    width: 100%;
    transition: transform 0.15s ease-out;
    transform-style: preserve-3d;
}
.cio-book-hero__book-glow {
    position: absolute;
    inset: -40px;
    background: radial-gradient(circle, rgba(0,200,255,0.14) 0%, transparent 65%);
    border-radius: 50%;
    pointer-events: none;
    animation: bookPulse 4s ease-in-out infinite;
}
@keyframes bookPulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50%      { opacity: 1; transform: scale(1.06); }
}
.cio-book-hero__cover {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow:
        0 32px 80px rgba(0,0,0,0.5),
        0 0 60px rgba(0,200,255,0.08);
    position: relative;
    z-index: 1;
}

/* ── Hero glow follows cursor ── */
.cio-book-hero__glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(0,200,255,0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transition: background 0.4s ease;
}

/* ══════════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════════ */
.cio-book-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border: none;
    border-radius: var(--bk-radius-sm);
    font-family: var(--bk-font);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    white-space: nowrap;
}
.cio-book-btn--primary {
    background: var(--bk-accent);
    color: #000;
}
.cio-book-btn--primary:hover {
    background: #fff;
    color: #000;
    box-shadow: 0 0 32px rgba(0,200,255,0.35);
    transform: translateY(-2px);
}
.cio-book-btn--outline {
    background: transparent;
    color: var(--bk-accent);
    border: 1px solid rgba(0,200,255,0.3);
}
.cio-book-btn--outline:hover {
    background: rgba(0,200,255,0.08);
    border-color: var(--bk-accent);
    color: #fff;
}
.cio-book-btn--lg {
    padding: 18px 44px;
    font-size: 17px;
}

/* ══════════════════════════════════════════
   VIDEO
   ══════════════════════════════════════════ */
.cio-book-video-section {
    background: var(--bk-bg-alt);
}
.cio-book-video {
    max-width: 860px;
    margin: 0 auto;
    border-radius: var(--bk-radius);
    overflow: hidden;
    border: 1px solid var(--bk-border-accent);
    box-shadow: 0 0 60px rgba(0,200,255,0.06);
}
.cio-book-video__player {
    width: 100%;
    display: block;
    background: #000;
    aspect-ratio: 16 / 9;
}

/* ══════════════════════════════════════════
   ABOUT CARDS
   ══════════════════════════════════════════ */
.cio-book-about__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.cio-book-about__card {
    padding: 36px 28px;
    text-align: center;
    transition: transform var(--bk-transition), border-color 0.3s ease, box-shadow 0.3s ease;
}
.cio-book-about__card:hover {
    transform: translateY(-6px);
    border-color: var(--bk-border-accent);
    box-shadow: 0 16px 48px rgba(0,200,255,0.1);
}
.cio-book-about__icon {
    margin-bottom: 20px;
}
.cio-book-about__card h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 0 0 12px;
}
.cio-book-about__card p {
    color: var(--bk-text-muted);
    font-size: 15px;
    line-height: 1.65;
    margin: 0;
}

/* ══════════════════════════════════════════
   FRAMEWORK (Golden Circle)
   ══════════════════════════════════════════ */
.cio-book-framework {
    background: var(--bk-bg-alt);
}
.cio-book-framework__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.cio-book-framework__card {
    padding: 40px 28px 36px;
    position: relative;
    overflow: hidden;
    transition: transform var(--bk-transition), border-color 0.3s ease, box-shadow 0.3s ease;
}
.cio-book-framework__card:hover {
    transform: translateY(-6px);
    border-color: var(--bk-border-accent);
    box-shadow: 0 16px 48px rgba(0,200,255,0.1);
}
.cio-book-framework__number {
    font-size: 64px;
    font-weight: 900;
    background: linear-gradient(135deg, rgba(0,200,255,0.2), rgba(0,200,255,0.04));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 16px;
}
.cio-book-framework__card h3 {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 12px;
}
.cio-book-framework__card p {
    color: var(--bk-text-muted);
    font-size: 15px;
    line-height: 1.65;
    margin: 0;
}

/* ══════════════════════════════════════════
   PARTS (Parte I / II)
   ══════════════════════════════════════════ */
.cio-book-parts__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}
.cio-book-parts__item {
    padding: 40px 32px;
    transition: transform var(--bk-transition), border-color 0.3s ease;
}
.cio-book-parts__item:hover {
    transform: translateY(-4px);
    border-color: var(--bk-border-accent);
}
.cio-book-parts__badge {
    display: inline-block;
    background: var(--bk-accent-dim);
    color: var(--bk-accent);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 20px;
}
.cio-book-parts__item h3 {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 16px;
}
.cio-book-parts__item p {
    color: var(--bk-text-muted);
    font-size: 15px;
    line-height: 1.7;
    margin: 0 0 12px;
}
.cio-book-parts__highlight {
    color: var(--bk-accent) !important;
    font-weight: 500;
    font-style: italic;
    border-left: 3px solid var(--bk-accent);
    padding-left: 16px;
    margin-top: 16px !important;
}

/* ══════════════════════════════════════════
   VALUES
   ══════════════════════════════════════════ */
.cio-book-values {
    background: var(--bk-bg-alt);
}
.cio-book-values__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 720px;
    margin: 0 auto 32px;
}
.cio-book-values__item {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--bk-surface);
    border: 1px solid var(--bk-border);
    border-radius: var(--bk-radius-sm);
    padding: 18px 24px;
    font-size: 15px;
    font-weight: 500;
    transition: border-color 0.3s ease, transform 0.3s ease;
}
.cio-book-values__item:hover {
    border-color: var(--bk-border-accent);
    transform: translateX(4px);
}
.cio-book-values__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--bk-accent);
    flex-shrink: 0;
    box-shadow: 0 0 12px rgba(0,200,255,0.4);
}
.cio-book-values__note {
    text-align: center;
    color: var(--bk-text-subtle);
    font-size: 15px;
    line-height: 1.7;
    max-width: 640px;
    margin: 0 auto;
}

/* ══════════════════════════════════════════
   AUDIENCE
   ══════════════════════════════════════════ */
.cio-book-audience__grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 32px;
}
.cio-book-audience__tag {
    background: var(--bk-accent-dim);
    border: 1px solid var(--bk-border-accent);
    color: var(--bk-accent);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 24px;
    border-radius: 100px;
    transition: background 0.3s ease, color 0.3s ease;
}
.cio-book-audience__tag:hover {
    background: var(--bk-accent);
    color: #000;
}
.cio-book-audience__text {
    text-align: center;
    color: var(--bk-text-muted);
    font-size: 16px;
    line-height: 1.7;
    max-width: 680px;
    margin: 0 auto;
}

/* ══════════════════════════════════════════
   CTA FINAL
   ══════════════════════════════════════════ */
.cio-book-cta {
    padding: 100px 0;
}
.cio-book-cta__inner {
    position: relative;
    text-align: center;
    padding: 72px 48px;
    overflow: hidden;
    border-color: var(--bk-border-accent);
}
.cio-book-cta__glow {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0,200,255,0.07) 0%, transparent 65%);
    pointer-events: none;
}
.cio-book-cta__inner h2 {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.2;
    max-width: 600px;
    margin: 16px auto 0;
}
.cio-book-cta__inner p {
    color: var(--bk-text-muted);
    font-size: 16px;
    line-height: 1.7;
    max-width: 560px;
    margin: 20px auto 0;
}
.cio-book-cta__inner .cio-book-btn {
    margin-top: 36px;
    position: relative;
    z-index: 1;
}

/* ══════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════ */
@media (max-width: 1024px) {
    .cio-book-hero__grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 48px;
    }
    .cio-book-hero__content {
        max-width: 100%;
    }
    .cio-book-hero__actions {
        justify-content: center;
    }
    .cio-book-hero__author {
        text-align: center;
    }
    .cio-book-hero__title {
        font-size: 44px;
    }
    .cio-book-hero__book-wrapper {
        max-width: 300px;
    }
    .cio-book-framework__grid,
    .cio-book-about__grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }
    .cio-book-parts__grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .cio-book-hero {
        padding: 60px 0 40px;
        min-height: auto;
    }
    .cio-book-hero__title {
        font-size: 36px;
    }
    .cio-book-hero__subtitle {
        font-size: 17px;
    }
    .cio-book-section {
        padding: 56px 0;
    }
    .cio-book-section-header h2 {
        font-size: 28px;
    }
    .cio-book-container {
        padding: 0 16px;
    }
    .cio-book-values__grid {
        grid-template-columns: 1fr;
    }
    .cio-book-cta__inner {
        padding: 48px 24px;
    }
    .cio-book-cta__inner h2 {
        font-size: 26px;
    }
    .cio-book-btn--lg {
        padding: 16px 32px;
        font-size: 15px;
    }
    .cio-book-video {
        border-radius: var(--bk-radius-sm);
    }
}

@media (max-width: 480px) {
    .cio-book-hero__title {
        font-size: 30px;
    }
    .cio-book-hero__actions {
        flex-direction: column;
        align-items: center;
    }
    .cio-book-audience__grid {
        gap: 8px;
    }
    .cio-book-audience__tag {
        font-size: 13px;
        padding: 8px 18px;
    }
}