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

:root {
    /* Yellow & Black Theme Colors */
    --primary-yellow: #FCD34D;
    --primary-yellow-dark: #F59E0B;
    --primary-yellow-light: #FEF3C7;
    --black: #000000;
    --dark-gray: #1F1F1F;
    --medium-gray: #404040;
    --light-gray: #F5F5F5;
    --white: #FFFFFF;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
}

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

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--black);
    background: linear-gradient(135deg, var(--black) 0%, var(--primary-yellow-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: var(--spacing-md);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-yellow);
    transition: var(--transition);
}

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

.nav-link:hover::after {
    width: 100%;
}

.btn-primary-nav {
    background-color: var(--primary-yellow);
    color: var(--black);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.btn-primary-nav:hover {
    background-color: var(--primary-yellow-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(252, 211, 77, 0.4);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background-color: var(--black);
    transition: var(--transition);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    background: linear-gradient(135deg, var(--black) 0%, var(--dark-gray) 50%, var(--primary-yellow-dark) 100%);
    color: var(--white);
    padding: 10rem var(--spacing-md) var(--spacing-xl);
    margin-top: 70px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(252, 211, 77, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.btn-primary {
    background-color: var(--primary-yellow);
    color: var(--black);
    padding: 1rem 2.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.125rem;
    transition: var(--transition);
    display: inline-block;
}

.btn-primary:hover {
    background-color: var(--primary-yellow-dark);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(252, 211, 77, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    padding: 1rem 2.5rem;
    border: 2px solid var(--white);
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.125rem;
    transition: var(--transition);
    display: inline-block;
}

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--black);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-yellow);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.8;
}

/* ===================================
   Section Styles
   =================================== */
section {
    padding: var(--spacing-xl) var(--spacing-md);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--medium-gray);
}

/* ===================================
   Features Section
   =================================== */
.features {
    background-color: var(--light-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: 16px;
    transition: var(--transition);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-yellow);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--medium-gray);
    line-height: 1.7;
}

/* ===================================
   How It Works Section
   =================================== */
.how-it-works-content {
    margin-bottom: var(--spacing-xl);
}

.audience-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--black);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.audience-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-yellow) 0%, var(--primary-yellow-dark) 100%);
    border-radius: 2px;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.step-card {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid var(--light-gray);
}

.step-card:hover {
    border-color: var(--primary-yellow);
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-yellow) 0%, var(--primary-yellow-dark) 100%);
    color: var(--black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 800;
    margin: 0 auto var(--spacing-sm);
}

.step-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.step-description {
    color: var(--medium-gray);
    line-height: 1.6;
}

/* ===================================
   Pricing Section
   =================================== */
.pricing {
    background-color: var(--light-gray);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: 20px;
    transition: var(--transition);
    border: 2px solid var(--light-gray);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.pricing-card.featured {
    border-color: var(--primary-yellow);
    box-shadow: 0 10px 30px rgba(252, 211, 77, 0.3);
}

.featured-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-yellow) 0%, var(--primary-yellow-dark) 100%);
    color: var(--black);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.875rem;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.pricing-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--medium-gray);
}

.price-amount {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--black);
    margin: 0 0.25rem;
}

.price-period {
    font-size: 1rem;
    color: var(--medium-gray);
}

.price-text {
    font-size: 2rem;
    font-weight: 800;
    color: var(--black);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.pricing-features li {
    padding: 0.75rem 0;
    color: var(--medium-gray);
    border-bottom: 1px solid var(--light-gray);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.btn-pricing {
    display: block;
    width: 100%;
    background-color: var(--black);
    color: var(--white);
    padding: 1rem;
    border-radius: 12px;
    text-align: center;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
}

.btn-pricing:hover {
    background-color: var(--primary-yellow);
    color: var(--black);
    transform: translateY(-2px);
}

.pricing-card.featured .btn-pricing {
    background: linear-gradient(135deg, var(--primary-yellow) 0%, var(--primary-yellow-dark) 100%);
    color: var(--black);
}

.pricing-card.featured .btn-pricing:hover {
    background: linear-gradient(135deg, var(--primary-yellow-dark) 0%, var(--primary-yellow) 100%);
}

/* ===================================
   Testimonials Section
   =================================== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-card {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: 16px;
    border: 2px solid var(--light-gray);
    transition: var(--transition);
}

.testimonial-card:hover {
    border-color: var(--primary-yellow);
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.testimonial-rating {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    color: var(--medium-gray);
    font-style: italic;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

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

.author-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-yellow-light) 0%, var(--primary-yellow) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.author-name {
    font-weight: 700;
    color: var(--black);
}

.author-role {
    font-size: 0.875rem;
    color: var(--medium-gray);
}

/* ===================================
   FAQ Section
   =================================== */
.faq {
    background-color: var(--light-gray);
}

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

.faq-category {
    margin-bottom: var(--spacing-lg);
}

.faq-category-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid var(--primary-yellow);
}

.faq-item {
    background-color: var(--white);
    margin-bottom: var(--spacing-sm);
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid transparent;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary-yellow);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: var(--spacing-md);
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--black);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--primary-yellow-light);
}

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

.faq-item.active .faq-icon {
    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: 0 var(--spacing-md) var(--spacing-md);
    color: var(--medium-gray);
    line-height: 1.7;
}

/* ===================================
   Contact Section
   =================================== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--spacing-md);
}

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.contact-icon {
    font-size: 1.5rem;
}

.contact-label {
    font-weight: 600;
    color: var(--black);
    margin-bottom: 0.25rem;
}

.contact-value {
    color: var(--medium-gray);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.social-link {
    padding: 0.75rem 1.5rem;
    background-color: var(--black);
    color: var(--white);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--primary-yellow);
    color: var(--black);
    transform: translateY(-2px);
}

.contact-form {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: 16px;
    border: 2px solid var(--light-gray);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-family: var(--font-family);
    font-size: 1rem;
    transition: var(--transition);
}

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

.btn-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-yellow) 0%, var(--primary-yellow-dark) 100%);
    color: var(--black);
    padding: 1rem;
    border: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1.125rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(252, 211, 77, 0.4);
}

/* ===================================
   Footer
   =================================== */
.footer {
    background-color: var(--black);
    color: var(--white);
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-yellow);
}

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

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

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

/* ===================================
   Animations
   =================================== */
.fade-in {
    animation: fadeIn 1s ease-in;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease-out forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        transition: var(--transition);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .features-grid,
    .steps-grid,
    .pricing-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .social-links {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
}