/* ================================
   NADA EXTRAORDINÁRIO, GRAÇAS A DEUS
   Landing Page Styles - Premium Edition
   ================================ */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500&display=swap');

:root {
    /* Paleta Premium */
    --bg-dark: #1a1613;
    --bg-warm: #2a2320;
    --bg-light: #f7f5f2;
    --bg-cream: #ede8e0;
    --bg-paper: #faf8f5;

    --text-light: #f0ebe4;
    --text-muted: #a89f94;
    --text-dark: #2a2320;
    --text-warm: #6b5d52;
    --text-body: #3d3632;

    /* Accent Colors - Dourado Antigo & Bordô */
    --accent: #c4a77d;
    --accent-soft: #d4c4a8;
    --accent-gold: #b8956e;
    --accent-deep: #8b5a3c;
    --accent-burgundy: #6b3a3a;

    /* Typography */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Spectral', Georgia, serif;
    --font-sans: 'Montserrat', -apple-system, sans-serif;

    /* Spacing - Premium (120px base) */
    --section-padding: clamp(100px, 15vh, 160px);
    --section-padding-sm: clamp(60px, 10vh, 100px);
    --container-width: min(90%, 1100px);

    /* Shadows */
    --shadow-book:
        0 30px 60px -20px rgba(0, 0, 0, 0.5),
        0 50px 100px -30px rgba(0, 0, 0, 0.3),
        -20px 20px 40px -20px rgba(0, 0, 0, 0.2);
    --shadow-card:
        0 4px 20px rgba(42, 35, 32, 0.06),
        0 1px 3px rgba(42, 35, 32, 0.08);
    --shadow-card-hover:
        0 20px 40px rgba(42, 35, 32, 0.12),
        0 8px 16px rgba(42, 35, 32, 0.08);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-light);
    color: var(--text-body);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ================================
   TEXTURES & OVERLAYS
   ================================ */
.grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Paper/Linen Texture for sections */
.texture-paper {
    background-image:
        url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100' height='100' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
}

/* Container */
.container {
    width: var(--container-width);
    margin: 0 auto;
}

/* ================================
   TYPOGRAPHY PREMIUM
   ================================ */
h1, h2, h3 {
    font-family: var(--font-display);
    letter-spacing: -0.02em;
    font-weight: 400;
}

.section-label {
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-warm);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    text-align: center;
}

/* ================================
   HERO SECTION - Premium
   ================================ */
.hero {
    min-height: 100vh;
    background-color: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* Linen texture background */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(ellipse at 70% 20%, rgba(196, 167, 125, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 30% 80%, rgba(196, 167, 125, 0.06) 0%, transparent 40%),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c4a77d' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

/* Vignette effect */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at center, transparent 40%, rgba(26, 22, 19, 0.4) 100%),
        linear-gradient(180deg, transparent 70%, rgba(26, 22, 19, 0.6) 100%);
    pointer-events: none;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(4rem, 10vw, 8rem);
    padding: 2rem;
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1200px;
}

@media (max-width: 900px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 3rem;
        padding-top: 4rem;
    }
}

/* Book Cover - Premium with deep shadow */
.hero-book {
    flex-shrink: 0;
    opacity: 0;
    animation: fadeInUp 1.2s ease-out 0.2s forwards;
    perspective: 1000px;
}

.book-cover {
    width: clamp(220px, 30vw, 340px);
    height: auto;
    border-radius: 4px;
    box-shadow: var(--shadow-book);
    transition: transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
    transform-style: preserve-3d;
}

.book-cover:hover {
    transform: translateY(-12px) rotateY(-5deg) rotateX(2deg);
}

/* Hero Text */
.hero-text {
    text-align: left;
    max-width: 480px;
}

@media (max-width: 900px) {
    .hero-text {
        text-align: center;
        max-width: 100%;
    }
}

.hero-pretitle {
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.5s forwards;
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 300;
    line-height: 1.05;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.title-line {
    display: block;
    font-size: clamp(2.2rem, 5.5vw, 3.8rem);
    color: var(--text-light);
    opacity: 0;
    animation: fadeInUp 1s ease-out forwards;
}

.title-line:nth-child(1) { animation-delay: 0.6s; }
.title-line:nth-child(2) { animation-delay: 0.75s; }
.title-line:nth-child(3) { animation-delay: 0.9s; }

.title-line.accent {
    color: var(--accent);
    font-style: italic;
    font-weight: 400;
}

.hero-author {
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 2.2vw, 1.4rem);
    font-weight: 400;
    color: var(--accent-soft);
    letter-spacing: 0.03em;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 1s ease-out 1.1s forwards;
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    font-weight: 300;
    color: var(--text-muted);
    line-height: 1.9;
    opacity: 0;
    animation: fadeInUp 1s ease-out 1.3s forwards;
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: fadeIn 1s ease-out 2s forwards;
}

.scroll-indicator span {
    display: block;
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollPulse 2.5s ease-in-out infinite;
}

/* ================================
   PARA QUEM É - Premium Cards
   ================================ */
.para-quem {
    background-color: var(--bg-paper);
    padding: var(--section-padding) 0;
    position: relative;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 4rem;
}

@media (max-width: 768px) {
    .cards-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
}

/* Premium Cards with icons */
.card {
    background: var(--bg-cream);
    padding: 2rem 2rem 2rem 3.5rem;
    border-radius: 8px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

/* Decorative icon */
.card::before {
    content: '';
    position: absolute;
    top: 2rem;
    left: 1.5rem;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.6;
}

/* Accent line on hover */
.card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-gold), var(--accent));
    transition: width 0.4s ease;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
}

.card:hover::after {
    width: 100%;
}

.card-text {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 300;
    color: var(--text-body);
    line-height: 1.85;
}

.card-text em {
    color: var(--text-warm);
    font-style: italic;
}

.section-note {
    font-family: var(--font-display);
    font-size: clamp(1.15rem, 2.5vw, 1.5rem);
    font-weight: 400;
    font-style: italic;
    color: var(--text-warm);
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
    letter-spacing: -0.01em;
}

/* ================================
   EXCERPT - Premium Blockquotes
   ================================ */
.excerpt {
    background-color: var(--bg-warm);
    padding: var(--section-padding) 0;
    position: relative;
    overflow: hidden;
}

.excerpt::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(ellipse at 20% 50%, rgba(196, 167, 125, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.excerpt-content {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 0 2rem;
}

/* Large decorative quote */
.quote-mark {
    font-family: var(--font-display);
    font-size: clamp(6rem, 15vw, 12rem);
    color: var(--accent);
    opacity: 0.08;
    line-height: 0.4;
    display: block;
    user-select: none;
}

.quote-mark.closing {
    text-align: right;
    margin-top: -2rem;
}

blockquote {
    padding: 1.5rem 0;
    position: relative;
}

blockquote p {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 3.2vw, 1.85rem);
    font-weight: 300;
    color: var(--text-light);
    line-height: 1.85;
    margin-bottom: 1.25rem;
    letter-spacing: -0.01em;
}

blockquote p:last-child {
    margin-bottom: 0;
}

.excerpt-source {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-top: 2rem;
    text-align: center;
    text-transform: uppercase;
}

.excerpt.secondary {
    background-color: var(--bg-dark);
}

.excerpt.secondary blockquote p:last-child {
    color: var(--accent);
    font-style: italic;
}

/* ================================
   EXPECTATIVAS - Lists with X icons
   ================================ */
.expectativas {
    background-color: var(--bg-cream);
    padding: var(--section-padding) 0;
}

.expect-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    max-width: 900px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .expect-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

.expect-col h3 {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 3vw, 1.7rem);
    font-weight: 400;
    color: var(--text-dark);
    margin-bottom: 1.75rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(42, 35, 32, 0.12);
    letter-spacing: -0.02em;
}

.expect-col h3 em {
    color: var(--accent-burgundy);
    font-style: italic;
}

.expect-col ul {
    list-style: none;
}

.expect-col li {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 300;
    color: var(--text-warm);
    padding: 0.85rem 0;
    padding-left: 2rem;
    position: relative;
    border-bottom: 1px solid rgba(42, 35, 32, 0.05);
}

/* Negative list: X icons */
.expect-col:first-child li::before {
    content: '×';
    position: absolute;
    left: 0;
    font-size: 1.1rem;
    color: var(--accent-burgundy);
    opacity: 0.7;
    font-weight: 300;
}

/* Positive list: check marks */
.expect-col:last-child li::before {
    content: '✓';
    position: absolute;
    left: 0;
    font-size: 0.9rem;
    color: var(--accent-gold);
}

/* ================================
   AUTORA - Premium Card
   ================================ */
.autora {
    background-color: var(--bg-light);
    padding: var(--section-padding) 0;
}

.autora-content {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-paper);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow-card);
}

@media (max-width: 768px) {
    .autora-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
        padding: 2rem;
    }
}

.autora-image {
    position: relative;
}

.image-placeholder {
    aspect-ratio: 1/1;
    background: var(--bg-cream);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    filter: sepia(0.1) saturate(0.9);
}

.image-placeholder span {
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Decorative ring */
.image-placeholder::after {
    content: '';
    position: absolute;
    top: -8px;
    left: -8px;
    right: -8px;
    bottom: -8px;
    border: 1px solid var(--accent);
    border-radius: 50%;
    opacity: 0.3;
}

.autora-text .section-label {
    text-align: left;
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    .autora-text .section-label {
        text-align: center;
    }
}

.autora-name {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    font-weight: 400;
    color: var(--text-dark);
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

@media (max-width: 768px) {
    .autora-name {
        text-align: center;
    }
}

.autora-bio {
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 300;
    color: var(--text-body);
    line-height: 1.9;
    margin-bottom: 1.25rem;
}

/* Handwritten signature style */
.autora-signature {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-style: italic;
    color: var(--accent);
    margin-top: 1.5rem;
    opacity: 0.9;
}

/* ================================
   COMUNIDADE - Social Proof
   ================================ */
.comunidade {
    background-color: var(--bg-cream);
    padding: var(--section-padding-sm) 0;
    position: relative;
}

.comunidade::before,
.comunidade::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.comunidade::before { top: 0; }
.comunidade::after { bottom: 0; }

.comunidade-content {
    text-align: center;
}

.comunidade-number {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 300;
    color: var(--accent-gold);
    line-height: 1;
    margin-bottom: 0.75rem;
    letter-spacing: -0.03em;
}

.comunidade-text {
    font-family: var(--font-body);
    font-size: clamp(1rem, 2vw, 1.15rem);
    font-weight: 300;
    color: var(--text-warm);
    line-height: 1.7;
}

.comunidade-text em {
    display: block;
    margin-top: 0.75rem;
    color: var(--text-dark);
    font-style: italic;
    font-size: 1.1em;
}

/* ================================
   PRODUTO - Details Grid
   ================================ */
.produto {
    background-color: var(--bg-light);
    padding: var(--section-padding) 0;
}

.produto .section-label {
    margin-bottom: 3rem;
}

.produto-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

@media (max-width: 900px) {
    .produto-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .produto-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}

.produto-item {
    text-align: center;
    padding: 2rem 1.25rem;
    background: var(--bg-paper);
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-card);
}

.produto-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.produto-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    color: var(--accent-gold);
}

.produto-icon svg {
    width: 26px;
    height: 26px;
}

.produto-label {
    display: block;
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.produto-value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 400;
    color: var(--text-dark);
}

/* ================================
   CTA SECTION - Premium
   ================================ */
.cta {
    background-color: var(--bg-dark);
    padding: var(--section-padding) 0;
    padding-bottom: calc(var(--section-padding) + 80px); /* Space for sticky button */
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(ellipse at 50% 0%, rgba(196, 167, 125, 0.12) 0%, transparent 50%);
    pointer-events: none;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 2;
    max-width: 500px;
    margin: 0 auto;
}

.cta-text {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 300;
    font-style: italic;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    font-weight: 300;
    color: var(--text-light);
    line-height: 1.25;
    margin-bottom: 2.5rem;
    letter-spacing: -0.02em;
}

.cta-title span {
    color: var(--accent);
    font-style: italic;
}

/* Premium Button with gradient */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.1rem 2.25rem;
    background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent) 100%);
    border: none;
    border-radius: 4px;
    color: var(--bg-dark);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-decoration: none;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(196, 167, 125, 0.3);
}

.cta-button:hover::before {
    opacity: 1;
}

.cta-button span,
.cta-button svg {
    position: relative;
    z-index: 1;
}

.cta-button svg {
    transition: transform 0.3s ease;
}

.cta-button:hover svg {
    transform: translateX(3px);
}

/* ================================
   WAITLIST FORM
   ================================ */
.waitlist-form {
    max-width: 380px;
    margin: 0 auto;
}

.form-intro {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 300;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.email-form {
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.form-group {
    position: relative;
}

.form-group input {
    width: 100%;
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(196, 167, 125, 0.25);
    border-radius: 4px;
    color: var(--text-light);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 300;
    transition: all 0.3s ease;
}

.form-group input::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.09);
}

.email-form .cta-button {
    width: 100%;
    margin-top: 0.5rem;
}

.form-privacy {
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--text-muted);
    margin-top: 1rem;
    opacity: 0.6;
}

/* Success State */
.waitlist-success {
    text-align: center;
    padding: 2rem 0;
}

.success-icon {
    color: var(--accent-gold);
    margin-bottom: 1.5rem;
    animation: successPulse 0.6s ease-out;
}

.success-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--text-light);
    margin-bottom: 0.75rem;
}

.success-text {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 300;
    color: var(--text-muted);
}

/* ================================
   WHATSAPP FLOATING BUTTON
   ================================ */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-decoration: none;
    z-index: 999;
    box-shadow:
        0 4px 12px rgba(37, 211, 102, 0.4),
        0 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    animation: whatsappPulse 2s ease-in-out infinite;
}

.whatsapp-float svg {
    width: 28px;
    height: 28px;
    transition: transform 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow:
        0 6px 20px rgba(37, 211, 102, 0.5),
        0 4px 8px rgba(0, 0, 0, 0.15);
    animation: none;
}

.whatsapp-float:hover svg {
    transform: rotate(-10deg) scale(1.1);
}

/* Tooltip */
.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: var(--bg-dark);
    color: var(--text-light);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: var(--bg-dark);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

@keyframes whatsappPulse {
    0%, 100% {
        box-shadow:
            0 4px 12px rgba(37, 211, 102, 0.4),
            0 2px 4px rgba(0, 0, 0, 0.1);
    }
    50% {
        box-shadow:
            0 4px 12px rgba(37, 211, 102, 0.4),
            0 2px 4px rgba(0, 0, 0, 0.1),
            0 0 0 8px rgba(37, 211, 102, 0.15);
    }
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .whatsapp-float {
        bottom: 90px; /* Above sticky CTA */
        right: 16px;
        width: 52px;
        height: 52px;
    }

    .whatsapp-float svg {
        width: 26px;
        height: 26px;
    }

    .whatsapp-tooltip {
        display: none;
    }
}

/* ================================
   STICKY CTA (Mobile)
   ================================ */
.sticky-cta {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-dark);
    padding: 1rem 1.5rem;
    z-index: 1000;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.sticky-cta.visible {
    transform: translateY(0);
}

.sticky-cta .cta-button {
    width: 100%;
}

@media (max-width: 768px) {
    .sticky-cta {
        display: block;
    }

    .cta {
        padding-bottom: var(--section-padding);
    }
}

/* ================================
   FOOTER
   ================================ */
.footer {
    background-color: var(--bg-dark);
    padding: 2.5rem 0;
    border-top: 1px solid rgba(168, 159, 148, 0.08);
}

.footer p {
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    text-align: center;
    opacity: 0.5;
}

/* ================================
   ANIMATIONS
   ================================ */
@keyframes fadeIn {
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.2; transform: scaleY(1); }
    50% { opacity: 0.8; transform: scaleY(1.15); }
}

@keyframes successPulse {
    0% { transform: scale(0); opacity: 0; }
    50% { transform: scale(1.15); }
    100% { transform: scale(1); opacity: 1; }
}

/* Scroll-triggered animations */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children */
.stagger-children .fade-in:nth-child(1) { transition-delay: 0.1s; }
.stagger-children .fade-in:nth-child(2) { transition-delay: 0.2s; }
.stagger-children .fade-in:nth-child(3) { transition-delay: 0.3s; }
.stagger-children .fade-in:nth-child(4) { transition-delay: 0.4s; }

/* ================================
   ACCESSIBILITY
   ================================ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 1rem 2rem;
    background: var(--accent);
    color: var(--bg-dark);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    text-decoration: none;
    z-index: 10000;
    border-radius: 0 0 4px 4px;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 0;
}

*:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

/* ================================
   RESPONSIVE
   ================================ */
@media (max-width: 480px) {
    :root {
        --section-padding: 80px;
        --section-padding-sm: 50px;
    }

    .card {
        padding: 1.5rem 1.5rem 1.5rem 3rem;
    }

    .expect-grid {
        gap: 2.5rem;
    }

    .form-group input {
        padding: 0.9rem 1rem;
        font-size: 16px;
    }

    .autora-content {
        padding: 1.5rem;
    }
}