/* ============================================
   UNIQUE 1S - Children Bible Activity Book
   Website Styles
   ============================================ */

/* CSS Variables */
:root {
    --teal: #00A3A3;
    --teal-dark: #008585;
    --teal-light: #E0F7F7;
    --coral: #FF6B6B;
    --coral-dark: #E85555;
    --coral-light: #FFE8E8;
    --yellow: #FFD93D;
    --yellow-dark: #E5C235;
    --yellow-light: #FFF8E0;
    --white: #FFFFFF;
    --cream: #FFFDF7;
    --text-dark: #2D3436;
    --text-light: #636E72;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', sans-serif;
    color: var(--text-dark);
    background: var(--cream);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Baloo 2', cursive;
}

img {
    max-width: 100%;
    height: auto;
}

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

/* ============================================
   NAVIGATION
   ============================================ */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 16px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Baloo 2', cursive;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--teal);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo span {
    color: var(--coral);
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--coral);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.98);
    z-index: 999;
    padding-top: 100px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    padding: 24px;
}

.mobile-nav-links a {
    font-family: 'Baloo 2', cursive;
    font-size: 1.3rem;
    color: var(--text-dark);
    text-decoration: none;
    transition: color 0.3s;
}

.mobile-nav-links a:hover {
    color: var(--coral);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 50px;
    font-family: 'Baloo 2', cursive;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--coral);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
}

.btn-primary:hover {
    background: var(--coral-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--teal);
    border: 3px solid var(--teal);
}

.btn-secondary:hover {
    background: var(--teal);
    color: white;
}

.btn-yellow {
    background: var(--yellow);
    color: var(--text-dark);
    box-shadow: 0 4px 15px rgba(255, 217, 61, 0.4);
}

.btn-yellow:hover {
    background: var(--yellow-dark);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--teal-light) 0%, var(--cream) 50%, var(--coral-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255, 217, 61, 0.2) 0%, transparent 70%);
    animation: float 8s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(5deg); }
}

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

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.hero-content h1 .highlight-teal {
    color: var(--teal);
}

.hero-content h1 .highlight-coral {
    color: var(--coral);
}

.hero-content h1 .highlight-yellow {
    background: var(--yellow);
    padding: 0 12px;
    border-radius: 8px;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.trust-badges {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.badge {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--text-light);
}

.badge-icon {
    width: 24px;
    height: 24px;
    background: var(--yellow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.book-mockup {
    width: 100%;
    max-width: 450px;
    position: relative;
    z-index: 2;
}

.book-wrapper {
    background: linear-gradient(145deg, var(--teal) 0%, var(--teal-dark) 100%);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 30px 60px rgba(0, 163, 163, 0.3);
    transform: rotate(-3deg);
    transition: transform 0.5s ease;
}

.book-wrapper:hover {
    transform: rotate(0deg) scale(1.02);
}

.book-cover-image {
    width: 100%;
    height: auto;
    border-radius: 12px;
    display: block;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.book-cover {
    background: white;
    border-radius: 12px;
    aspect-ratio: 3/4;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.book-cover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 8px;
    background: linear-gradient(90deg, var(--coral), var(--yellow), var(--teal), var(--coral));
}

.book-title {
    font-family: 'Baloo 2', cursive;
    font-size: 1.8rem;
    color: var(--teal);
    line-height: 1.2;
    margin-bottom: 12px;
}

.book-subtitle {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 20px;
}

.book-illustration {
    width: 120px;
    height: 120px;
    background: var(--yellow-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    margin-bottom: 20px;
    border: 4px dashed var(--yellow);
}

.book-author {
    font-weight: 700;
    color: var(--coral);
}

/* Floating Elements */
.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.floating-star {
    position: absolute;
    font-size: 2rem;
    animation: twinkle 2s ease-in-out infinite;
}

.floating-star:nth-child(1) { top: 10%; left: 10%; animation-delay: 0s; }
.floating-star:nth-child(2) { top: 20%; right: 5%; animation-delay: 0.5s; }
.floating-star:nth-child(3) { bottom: 30%; left: 5%; animation-delay: 1s; }
.floating-star:nth-child(4) { bottom: 10%; right: 15%; animation-delay: 1.5s; }

@keyframes twinkle {
    0%, 100% { opacity: 1; transform: scale(1) rotate(0deg); }
    50% { opacity: 0.5; transform: scale(0.8) rotate(180deg); }
}

/* ============================================
   PROBLEM SECTION
   ============================================ */
.problem-section {
    padding: 100px 0;
    background: white;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    background: var(--yellow);
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.section-header h2 {
    font-size: 2.8rem;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-light);
}

.pain-points {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.pain-card {
    background: var(--cream);
    padding: 32px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    border: 3px solid transparent;
}

.pain-card:hover {
    border-color: var(--coral);
    transform: translateY(-5px);
}

.pain-icon {
    width: 80px;
    height: 80px;
    background: var(--coral-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 20px;
}

.pain-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.pain-card p {
    color: var(--text-light);
    line-height: 1.6;
}

.solution-box {
    margin-top: 60px;
    background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
    border-radius: 24px;
    padding: 50px;
    display: flex;
    align-items: center;
    gap: 40px;
    color: white;
}

.solution-icon {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.solution-content h3 {
    font-size: 2rem;
    margin-bottom: 12px;
}

.solution-content p {
    font-size: 1.1rem;
    opacity: 0.9;
    line-height: 1.6;
}

/* ============================================
   ABOUT BOOK SECTION
   ============================================ */
.about-book-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--coral-light) 0%, var(--yellow-light) 50%, var(--teal-light) 100%);
    position: relative;
    overflow: hidden;
}

.about-book-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2300A3A3' fill-opacity='0.05'%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");
}

.about-book-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.about-book-visual {
    position: relative;
}

.origin-story-card {
    background: white;
    border-radius: 24px;
    padding: 50px 40px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 2;
}

.story-icon {
    font-size: 5rem;
    margin-bottom: 20px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.story-label {
    font-family: 'Baloo 2', cursive;
    font-size: 1.5rem;
    color: var(--coral);
}

.book-features-visual {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.feature-bubble {
    position: absolute;
    background: white;
    padding: 12px 20px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    animation: bobble 3s ease-in-out infinite;
}

.bubble-1 { top: -10px; left: -20px; animation-delay: 0s; background: var(--teal-light); color: var(--teal-dark); }
.bubble-2 { top: 30%; right: -30px; animation-delay: 0.5s; background: var(--coral-light); color: var(--coral-dark); }
.bubble-3 { bottom: 30%; left: -40px; animation-delay: 1s; background: var(--yellow-light); color: var(--text-dark); }
.bubble-4 { bottom: -10px; right: 10%; animation-delay: 1.5s; background: var(--coral); color: white; }

@keyframes bobble {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.about-book-content .section-tag {
    margin-bottom: 16px;
}

.about-book-content h2 {
    font-size: 2.8rem;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.about-book-content h2 .highlight-coral {
    color: var(--coral);
}

.origin-text {
    font-size: 1.3rem;
    color: var(--teal-dark);
    margin-bottom: 20px;
    line-height: 1.6;
}

.about-desc {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.7;
}

.mission-box {
    display: flex;
    align-items: center;
    gap: 20px;
    background: white;
    padding: 24px;
    border-radius: 16px;
    margin: 30px 0;
    border-left: 5px solid var(--teal);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.mission-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.mission-content h4 {
    font-family: 'Baloo 2', cursive;
    font-size: 1.2rem;
    color: var(--teal);
    margin-bottom: 4px;
}

.mission-content p {
    color: var(--text-dark);
    font-weight: 600;
}

.audience-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 30px;
}

.audience-tag {
    background: white;
    padding: 10px 18px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-dark);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.purpose-highlight {
    background: linear-gradient(135deg, var(--teal), var(--teal-dark));
    padding: 24px 30px;
    border-radius: 16px;
    color: white;
}

.purpose-highlight p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin: 0;
}

.purpose-highlight strong {
    color: var(--yellow);
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features-section {
    padding: 100px 0;
    background: var(--cream);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 36px;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--teal), var(--coral));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--teal-light), var(--yellow-light));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 24px;
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: var(--teal-dark);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ============================================
   AGE GROUPS SECTION
   ============================================ */
.ages-section {
    padding: 100px 0;
    background: white;
}

.ages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.age-card {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.age-card:hover {
    transform: scale(1.03);
}

.age-card:nth-child(1) .age-header { background: var(--coral); }
.age-card:nth-child(2) .age-header { background: var(--teal); }
.age-card:nth-child(3) .age-header { background: var(--yellow); }
.age-card:nth-child(3) .age-header h3 { color: var(--text-dark); }
.age-card:nth-child(3) .age-header .age-range { color: var(--text-dark); opacity: 0.7; }

.age-header {
    padding: 30px;
    text-align: center;
    color: white;
}

.age-emoji {
    font-size: 4rem;
    margin-bottom: 12px;
}

.age-header h3 {
    font-size: 1.8rem;
    margin-bottom: 4px;
}

.age-range {
    font-size: 1.1rem;
    opacity: 0.9;
}

.age-content {
    padding: 30px;
}

.age-content ul {
    list-style: none;
}

.age-content li {
    padding: 12px 0;
    border-bottom: 1px dashed #eee;
    display: flex;
    align-items: center;
    gap: 12px;
}

.age-content li:last-child {
    border-bottom: none;
}

.age-check {
    width: 24px;
    height: 24px;
    background: var(--teal-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--teal);
    flex-shrink: 0;
}

/* ============================================
   PREVIEW SECTION
   ============================================ */
.preview-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
    color: white;
}

.preview-section .section-header p {
    color: rgba(255, 255, 255, 0.8);
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.preview-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

.preview-card:hover {
    transform: scale(1.05) rotate(-2deg);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.preview-image {
    aspect-ratio: 4/5;
    background: var(--cream);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.preview-image .icon {
    font-size: 4rem;
    margin-bottom: 12px;
}

.preview-image span {
    font-weight: 700;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.preview-label {
    padding: 16px;
    text-align: center;
    font-weight: 700;
    color: var(--teal-dark);
    background: white;
}

/* ============================================
   BENEFITS SECTION
   ============================================ */
.benefits-section {
    padding: 100px 0;
    background: var(--cream);
}

.benefits-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.benefit-group {
    background: white;
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

.benefit-group-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 30px;
}

.benefit-group-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.benefit-group:nth-child(1) .benefit-group-icon {
    background: var(--coral-light);
}

.benefit-group:nth-child(2) .benefit-group-icon {
    background: var(--teal-light);
}

.benefit-group h3 {
    font-size: 1.6rem;
    color: var(--text-dark);
}

.benefit-list {
    list-style: none;
}

.benefit-item {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid #f0f0f0;
}

.benefit-item:last-child {
    border-bottom: none;
}

.benefit-bullet {
    width: 28px;
    height: 28px;
    background: var(--yellow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: 700;
    font-size: 0.8rem;
}

.benefit-text h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
    color: var(--text-dark);
}

.benefit-text p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ============================================
   VIDEO SECTION
   ============================================ */
.video-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--yellow-light) 0%, var(--coral-light) 100%);
}

.video-wrapper {
    max-width: 800px;
    margin: 0 auto;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    position: relative;
}

.video-wrapper::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: linear-gradient(135deg, var(--coral), var(--yellow), var(--teal));
    border-radius: 28px;
    z-index: -1;
}

.promo-video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 20px;
}

.sound-toggle {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--coral);
    border: none;
    border-radius: 50px;
    padding: 16px 32px;
    font-family: 'Baloo 2', cursive;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    cursor: pointer;
    box-shadow: 0 6px 25px rgba(255, 107, 107, 0.5);
    transition: all 0.3s ease;
    z-index: 10;
    animation: pulseButton 2s ease-in-out infinite;
}

@keyframes pulseButton {
    0%, 100% { transform: translateX(-50%) scale(1); box-shadow: 0 6px 25px rgba(255, 107, 107, 0.5); }
    50% { transform: translateX(-50%) scale(1.08); box-shadow: 0 8px 35px rgba(255, 107, 107, 0.7); }
}

.sound-toggle:hover {
    background: var(--coral-dark);
}

.sound-toggle.active {
    background: var(--teal);
    animation: none;
    box-shadow: 0 4px 15px rgba(0, 163, 163, 0.4);
}

.sound-toggle .sound-on {
    display: none;
}

.sound-toggle.active .sound-off {
    display: none;
}

.sound-toggle.active .sound-on {
    display: inline;
}

/* ============================================
   AUTHOR SECTION
   ============================================ */
.author-section {
    padding: 100px 0;
    background: white;
}

.author-section .section-header {
    margin-bottom: 60px;
}

.author-section .section-header h2 {
    color: var(--teal);
}

.author-wrapper {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 60px;
    align-items: start;
}

.author-image {
    position: relative;
    position: sticky;
    top: 120px;
}

.author-photo {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--coral-light), var(--yellow-light));
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.author-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.author-photo::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 30%;
    background: linear-gradient(to top, rgba(0, 163, 163, 0.2), transparent);
    pointer-events: none;
}

.author-badge {
    position: absolute;
    bottom: -15px;
    right: -15px;
    background: var(--yellow);
    padding: 12px 24px;
    border-radius: 50px;
    font-family: 'Baloo 2', cursive;
    font-weight: 700;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.author-content {
    text-align: left;
}

.author-intro {
    margin-bottom: 30px;
}

.author-lead {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--text-dark);
    font-weight: 500;
}

.author-credentials {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.credential-item {
    display: flex;
    gap: 20px;
    background: var(--cream);
    padding: 24px;
    border-radius: 16px;
    transition: all 0.3s ease;
}

.credential-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.credential-icon {
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.credential-text h4 {
    font-family: 'Baloo 2', cursive;
    font-size: 1.1rem;
    color: var(--teal-dark);
    margin-bottom: 4px;
}

.credential-text p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

.author-philosophy {
    background: linear-gradient(135deg, var(--teal-light), var(--yellow-light));
    padding: 30px;
    border-radius: 20px;
    margin-bottom: 30px;
}

.author-philosophy h4 {
    font-family: 'Baloo 2', cursive;
    font-size: 1.3rem;
    color: var(--teal-dark);
    margin-bottom: 16px;
}

.author-philosophy p {
    color: var(--text-dark);
    line-height: 1.7;
    margin-bottom: 12px;
}

.author-philosophy p:last-child {
    margin-bottom: 0;
}

.author-philosophy strong {
    color: var(--coral);
}

.author-quote {
    background: var(--teal);
    padding: 30px;
    border-radius: 20px;
    font-style: italic;
    color: white;
    font-size: 1.15rem;
    line-height: 1.7;
    position: relative;
    margin-bottom: 30px;
}

.quote-mark {
    font-family: 'Baloo 2', cursive;
    font-size: 4rem;
    position: absolute;
    top: 10px;
    left: 20px;
    opacity: 0.3;
    line-height: 1;
}

.author-roles {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.role-tag {
    background: white;
    border: 2px solid var(--coral);
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--coral);
    transition: all 0.3s ease;
}

.role-tag:hover {
    background: var(--coral);
    color: white;
}

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */
.testimonials-section {
    padding: 100px 0;
    background: var(--coral);
}

.testimonials-section .section-header h2,
.testimonials-section .section-header p {
    color: white;
}

.testimonials-section .section-tag {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: white;
    padding: 32px;
    border-radius: 24px;
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    right: 24px;
    font-family: 'Baloo 2', cursive;
    font-size: 5rem;
    color: var(--coral-light);
    line-height: 1;
}

.testimonial-text {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-light);
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    background: var(--yellow-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.testimonial-name {
    font-weight: 700;
    color: var(--text-dark);
}

.testimonial-role {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ============================================
   PURCHASE SECTION
   ============================================ */
.purchase-section {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--cream) 0%, white 100%);
}

.purchase-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.purchase-content h2 {
    font-size: 2.8rem;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.purchase-content > p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 40px;
}

.purchase-options {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.purchase-option {
    background: white;
    border: 3px solid #eee;
    border-radius: 20px;
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
}

.purchase-option:hover {
    border-color: var(--teal);
}

.purchase-option.featured {
    border-color: var(--coral);
    background: var(--coral-light);
}

.purchase-option.featured .option-badge {
    display: block;
}

.option-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.option-icon {
    width: 50px;
    height: 50px;
    background: var(--yellow-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.option-name {
    font-family: 'Baloo 2', cursive;
    font-size: 1.2rem;
    color: var(--text-dark);
}

.option-desc {
    font-size: 0.9rem;
    color: var(--text-light);
}

.option-badge {
    display: none;
    background: var(--coral);
    color: white;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
}

.option-price {
    font-family: 'Baloo 2', cursive;
    font-size: 1.5rem;
    color: var(--teal);
}

.purchase-visual {
    display: flex;
    justify-content: center;
}

.cta-box {
    background: linear-gradient(135deg, var(--teal), var(--teal-dark));
    border-radius: 30px;
    padding: 50px;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.cta-box h3 {
    font-size: 2rem;
    margin-bottom: 16px;
    position: relative;
}

.cta-box p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 30px;
    position: relative;
}

.cta-box .btn {
    position: relative;
}

.guarantee {
    margin-top: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.95rem;
    opacity: 0.9;
    position: relative;
}

/* ============================================
   FAQ SECTION
   ============================================ */
.faq-section {
    padding: 100px 0;
    background: white;
}

.faq-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 2px solid #f0f0f0;
    padding: 24px 0;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-family: 'Baloo 2', cursive;
    font-size: 1.3rem;
    color: var(--text-dark);
}

.faq-toggle {
    width: 40px;
    height: 40px;
    background: var(--teal-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--teal);
    font-size: 1.5rem;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-toggle {
    background: var(--teal);
    color: white;
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding-top: 16px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section {
    padding: 100px 0;
    background: var(--cream);
}

.contact-wrapper {
    max-width: 600px;
    margin: 0 auto;
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #eee;
    border-radius: 12px;
    font-family: 'Nunito', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--teal);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-status {
    margin-top: 16px;
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    display: none;
}

.form-status.success {
    display: block;
    background: var(--teal-light);
    color: var(--teal-dark);
}

.form-status.error {
    display: block;
    background: var(--coral-light);
    color: var(--coral-dark);
}

/* ============================================
   NEWSLETTER SECTION
   ============================================ */
.newsletter-section {
    padding: 80px 0;
    background: var(--yellow);
}

.newsletter-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.newsletter-content h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.newsletter-content p {
    color: var(--text-dark);
    opacity: 0.8;
}

.newsletter-form {
    display: flex;
    gap: 16px;
}

.newsletter-form input {
    padding: 16px 24px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    width: 300px;
    font-family: 'Nunito', sans-serif;
}

.newsletter-form input:focus {
    outline: 3px solid var(--teal);
}

.newsletter-status {
    width: 100%;
    text-align: center;
    padding: 12px;
    border-radius: 8px;
    display: none;
}

.newsletter-status.success {
    display: block;
    background: var(--teal-light);
    color: var(--teal-dark);
}

.newsletter-status.error {
    display: block;
    background: var(--coral-light);
    color: var(--coral-dark);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
    background: var(--text-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 16px;
}

.footer-brand .logo span {
    color: var(--coral);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-links h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    display: block;
    padding: 8px 0;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--coral);
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-link {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s;
    text-decoration: none;
}

.social-link:hover {
    background: var(--coral);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .hero .container,
    .author-wrapper,
    .purchase-wrapper,
    .about-book-wrapper {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-book-visual {
        order: -1;
        max-width: 400px;
        margin: 0 auto;
    }

    .audience-tags {
        justify-content: center;
    }

    .mission-box {
        flex-direction: column;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2.8rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .trust-badges {
        justify-content: center;
    }

    .features-grid,
    .ages-grid,
    .testimonials-grid {
        grid-template-columns: 1fr 1fr;
    }

    .preview-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pain-points {
        grid-template-columns: 1fr;
    }

    .benefits-wrapper {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .features-grid,
    .ages-grid,
    .testimonials-grid,
    .preview-grid {
        grid-template-columns: 1fr;
    }

    .solution-box {
        flex-direction: column;
        text-align: center;
    }

    .newsletter-wrapper {
        flex-direction: column;
        text-align: center;
    }

    .newsletter-form {
        flex-direction: column;
        width: 100%;
    }

    .newsletter-form input {
        width: 100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .author-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .author-image {
        position: relative;
        top: 0;
        max-width: 280px;
        margin: 0 auto;
    }

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

    .credential-item {
        flex-direction: column;
        text-align: center;
    }

    .credential-item:hover {
        transform: translateY(-5px);
    }

    .author-roles {
        justify-content: center;
    }

    .author-quote {
        text-align: left;
    }

    .contact-form {
        padding: 24px;
    }
}