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

:root {
    --primary-color: #2563eb;
    --secondary-color: #0ea5e9;
    --accent-color: #f59e0b;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --gray-color: #64748b;
    --success-color: #10b981;
    --border-radius: 12px;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--dark-color);
    background-color: #ffffff;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header and Navigation */
.header {
    background-color: #ffffff;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    padding: 1rem 0;
}

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

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.logo a:hover {
    color: var(--secondary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu li a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

.nav-menu li a:hover::after {
    width: 100%;
}

.nav-menu li a:hover {
    color: var(--primary-color);
}

/* Burger Menu */
.burger-menu {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.burger-menu span {
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    border-radius: 3px;
    transition: var(--transition);
}

.burger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 4rem 0;
    text-align: center;
    color: white;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(90deg, #fbbf24, #f59e0b, #fbbf24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-image {
    margin: 2rem 0;
    display: flex;
    justify-content: center;
}

.hero-image img {
    max-width: 500px;
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

.hero-image img:hover {
    transform: scale(1.05);
}

/* CTA Buttons */
.cta-button, .cta-button-large {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--accent-color), #ef4444);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: var(--shadow);
    text-align: center;
}

.cta-button:hover, .cta-button-large:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #ef4444, var(--accent-color));
}

.cta-button-large {
    font-size: 1.3rem;
    padding: 1.3rem 3rem;
}

/* Social Share Section */
.social-share {
    background-color: var(--light-color);
    padding: 2rem 0;
    border-bottom: 1px solid #e2e8f0;
}

.share-text {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--gray-color);
}

.share-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    color: white;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.share-btn.facebook { background-color: #1877f2; }
.share-btn.twitter { background-color: #1da1f2; }
.share-btn.linkedin { background-color: #0a66c2; }
.share-btn.pinterest { background-color: #e60023; }

/* Main Content */
.main-content {
    padding: 4rem 0;
}

.content-section {
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: var(--dark-color);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subsection-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 2.5rem 0 1.5rem;
    color: var(--primary-color);
}

.content-section p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: #334155;
}

.content-section a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.content-section a:hover {
    border-bottom-color: var(--primary-color);
}

.highlight {
    color: var(--accent-color);
}

/* Image Showcase */
.image-showcase {
    margin: 3rem 0;
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.showcase-item {
    text-align: center;
}

.showcase-item img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.showcase-item img:hover {
    transform: scale(1.03);
}

.image-caption {
    margin-top: 1rem;
    font-style: italic;
    color: var(--gray-color);
}

/* Features Table */
.features-table-section {
    margin: 4rem 0;
}

.table-wrapper {
    overflow-x: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.features-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

.features-table thead {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.features-table th, .features-table td {
    padding: 1.2rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.features-table th {
    font-weight: 700;
    font-size: 1.1rem;
}

.features-table tbody tr:hover {
    background-color: var(--light-color);
}

.features-table tbody tr:last-child td {
    border-bottom: none;
}

/* Facts Section */
.facts-section {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 4rem 2rem;
    border-radius: var(--border-radius);
    margin: 4rem 0;
}

.facts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.fact-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.fact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.fact-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.fact-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.fact-card p {
    color: var(--gray-color);
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 4rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    margin: 4rem 0;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* FAQ Section */
.faq-section {
    margin: 4rem 0;
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--light-color);
    transition: var(--transition);
}

.faq-question:hover {
    background: #e2e8f0;
}

.faq-question h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark-color);
    margin: 0;
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 1.5rem;
    margin: 0;
    color: var(--gray-color);
    line-height: 1.8;
}

/* Reviews Section */
.reviews-section {
    margin: 4rem 0;
    background: var(--light-color);
    padding: 4rem 2rem;
    border-radius: var(--border-radius);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.review-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.review-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.review-rating {
    color: var(--accent-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.review-text {
    font-style: italic;
    color: var(--gray-color);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.review-author {
    font-weight: 600;
    color: var(--dark-color);
}

/* Author Section */
.author-section {
    margin: 4rem 0;
    padding: 3rem;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-radius: var(--border-radius);
}

.author-card {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    max-width: 900px;
    margin: 0 auto;
}

.author-image img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow);
}

.author-info {
    flex: 1;
}

.author-name {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.author-title {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.author-bio {
    color: var(--gray-color);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.author-social {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.5rem;
    background: white;
    color: var(--dark-color);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.social-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: var(--primary-color);
    color: white;
}

/* Footer */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

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

.footer-section ul li {
    margin-bottom: 0.7rem;
}

.footer-section a {
    color: #94a3b8;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: white;
}

.footer-social {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #475569;
    color: #94a3b8;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .burger-menu {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
        gap: 1rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .subsection-title {
        font-size: 1.4rem;
    }

    .content-section p {
        font-size: 1rem;
    }

    .author-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .features-table th, .features-table td {
        padding: 0.8rem;
        font-size: 0.9rem;
    }

    .facts-grid, .reviews-grid {
        grid-template-columns: 1fr;
    }

    .cta-button-large {
        font-size: 1.1rem;
        padding: 1rem 2rem;
    }

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .logo a {
        font-size: 1.2rem;
    }

    .cta-button, .cta-button-large {
        width: 100%;
        padding: 1rem 1.5rem;
    }
}

/* Author Profile Main */
.author-profile-main {
    margin: 3rem 0;
}

.author-profile-card {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
    max-width: 1000px;
    margin: 0 auto;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.author-profile-image img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow-lg);
    border: 5px solid white;
}

.author-profile-info {
    flex: 1;
}

.author-profile-name {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.author-profile-title {
    font-size: 1.4rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 2rem;
}

.author-profile-social {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .author-profile-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 2rem;
    }
}

/* Contact Form */
.contact-form-section {
    margin: 3rem 0;
}

.form-container {
    max-width: 700px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
    font-size: 1rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.9rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.contact-form button[type="submit"] {
    margin-top: 1rem;
    cursor: pointer;
    border: none;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

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

.content-section, .fact-card, .review-card {
    animation: fadeIn 0.6s ease-out;
}