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

:root {
    /* Colors */
    --primary-color: #0F172A;
    --secondary-color: #1E293B;
    --accent-color: #F97316;
    --accent-hover: #EA580C;
    --teal-color: #0D9488;
    --teal-hover: #0F766E;
    --text-primary: #0F172A;
    --text-secondary: #64748B;
    --text-light: #94A3B8;
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --success-color: #10B981;
    --error-color: #EF4444;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Base Typography */
body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Header */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--accent-color);
}

/* Hero Section */
.hero {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
}

.hero::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='%23f1f5f9' fill-opacity='0.4'%3E%3Ccircle cx='30' cy='30' r='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-secondary);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

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

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--teal-color));
    border-radius: 2px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

/* CTA Form */
.cta-form-container {
    margin-bottom: var(--spacing-lg);
}

.cta-form {
    margin-bottom: var(--spacing-sm);
}

.form-group {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.email-input {
    flex: 1;
    padding: 1rem 1.25rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all var(--transition-fast);
    background: var(--white);
}

.email-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.1);
}

.email-input::placeholder {
    color: var(--text-light);
}

.cta-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    color: var(--white);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-primary);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    white-space: nowrap;
}

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

.cta-button:active {
    transform: translateY(0);
}

.button-arrow {
    transition: transform var(--transition-fast);
}

.cta-button:hover .button-arrow {
    transform: translateX(4px);
}

.form-disclaimer {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.check-icon {
    flex-shrink: 0;
}

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

.ebook-mockup {
    position: relative;
    transform: perspective(1000px) rotateY(-15deg) rotateX(5deg);
    transition: transform var(--transition-slow);
}

.ebook-mockup:hover {
    transform: perspective(1000px) rotateY(-10deg) rotateX(2deg) scale(1.05);
}

.ebook-cover {
    width: 280px;
    height: 360px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.ebook-cover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.ebook-content {
    position: relative;
    z-index: 1;
}

.ebook-title {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-xs);
}

.ebook-subtitle {
    font-size: 1rem;
    color: var(--gray-300);
    margin-bottom: var(--spacing-lg);
}

.ebook-author {
    font-size: 0.875rem;
    color: var(--gray-300);
    margin-top: auto;
}

.ebook-icon {
    font-size: 3rem;
    text-align: center;
    margin: var(--spacing-lg) 0;
}

.ebook-shadow {
    position: absolute;
    bottom: -20px;
    left: 20px;
    right: -10px;
    height: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 50%;
    filter: blur(20px);
    z-index: -1;
}

/* Floating Elements */
.floating-element {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    animation: float 6s ease-in-out infinite;
}

.floating-icon {
    font-size: 1.25rem;
}

.element-1 {
    top: 20%;
    right: -10%;
    animation-delay: 0s;
}

.element-2 {
    top: 60%;
    left: -15%;
    animation-delay: 2s;
}

.element-3 {
    bottom: 20%;
    right: -5%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Section Styles */
.section-title {
    font-family: var(--font-secondary);
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--primary-color);
}

/* What's Inside Section */
.whats-inside {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.feature-item {
    text-align: center;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    background: var(--gray-50);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
}

.feature-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-color);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent-color), var(--teal-color));
    color: var(--white);
    border-radius: 50%;
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-family: var(--font-secondary);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Testimonials Section */
.testimonials {
    padding: var(--spacing-3xl) 0;
    background: var(--gray-50);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

.testimonial-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
}

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

.testimonial-content {
    position: relative;
}

.quote-icon {
    font-size: 3rem;
    color: var(--accent-color);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent-color), var(--teal-color));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.25rem;
}

.author-name {
    font-weight: 600;
    color: var(--primary-color);
}

.author-title {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* About Section */
.about {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    max-width: 800px;
    margin: 0 auto;
}

.team-avatar {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 4px solid var(--white);
    box-shadow: var(--shadow-lg);
}

.avatar-placeholder {
    color: var(--text-secondary);
}

.about-title {
    font-family: var(--font-secondary);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.about-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.about-description:last-child {
    margin-bottom: 0;
}

/* Closing CTA Section */
.closing-cta {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-family: var(--font-secondary);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta-description {
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
    color: var(--gray-300);
}

.closing-cta .email-input {
    background: var(--white);
    border-color: rgba(255, 255, 255, 0.2);
}

.closing-cta .email-input:focus {
    border-color: var(--accent-color);
}

.closing-cta .form-disclaimer {
    color: var(--gray-300);
}

.trust-indicators {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.trust-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.trust-text {
    font-size: 0.875rem;
    color: var(--gray-300);
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-description {
    color: var(--gray-300);
    margin-top: var(--spacing-xs);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-link {
    color: var(--gray-300);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--secondary-color);
    color: var(--gray-300);
    font-size: 0.875rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 400px;
    width: 90%;
    text-align: center;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.success-icon {
    margin-bottom: var(--spacing-md);
}

.modal-title {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.modal-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.modal-close {
    background: var(--accent-color);
    color: var(--white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.modal-close:hover {
    background: var(--accent-hover);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .form-group {
        flex-direction: column;
    }
    
    .cta-button {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .trust-indicators {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .floating-element {
        display: none;
    }
    
    .ebook-mockup {
        transform: none;
        scale: 0.8;
    }
    
    .ebook-mockup:hover {
        transform: scale(0.85);
    }
}

@media (max-width: 480px) {
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .ebook-cover {
        width: 240px;
        height: 300px;
        padding: var(--spacing-lg);
    }
    
    .ebook-title {
        font-size: 1.25rem;
    }
}

/* Loading States */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading .cta-button {
    background: var(--gray-300);
}

/* Focus States for Accessibility */
.cta-button:focus,
.email-input:focus,
.modal-close:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating-element {
        animation: none;
    }
    
    .ebook-cover::before {
        animation: none;
    }
}