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

:root {
    --primary-black: #000000;
    --primary-white: #FFFFFF;
    --neon-green: #00FF85;
    --accent-red: #FF0055;
    --gray-100: #F5F5F5;
    --gray-200: #E5E5E5;
    --gray-300: #D4D4D4;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--primary-white);
    color: var(--primary-black);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--primary-white);
    border-bottom: 1px solid var(--gray-200);
    z-index: 100;
    padding: 16px 0;
}

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

.logo-text {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--primary-black);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: 4px;
    background-color: var(--gray-100);
    border-radius: 6px;
    padding: 4px;
}

.lang-button {
    background: none;
    border: none;
    padding: 6px 12px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--gray-700);
    font-family: inherit;
}

.lang-button:hover {
    color: var(--primary-black);
}

.lang-button.active {
    background-color: var(--primary-black);
    color: var(--primary-white);
}

.cta-button {
    background-color: var(--neon-green);
    color: var(--primary-black);
    border: none;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: inherit;
}

.cta-button:hover {
    background-color: #00cc6a;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 255, 133, 0.3);
}

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

.cta-button:disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

.cta-button:disabled:hover {
    transform: none;
    box-shadow: none;
}

.cta-button-large {
    padding: 16px 32px;
    font-size: 18px;
}

.cta-button-header {
    padding: 10px 20px;
    font-size: 14px;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--primary-white) 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 55px;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
    color: var(--primary-black);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--gray-700);
    margin-bottom: 40px;
    line-height: 1.6;
}

/* Brand Logos */
.brand-logos {
    margin-top: 80px;
    text-align: center;
}

.brand-logos-text {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-700);
    margin-bottom: 32px;
    font-weight: 600;
}

.logos-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}

.logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0.6;
}

.logo-item:hover {
    transform: scale(1.1);
    opacity: 1;
}

.brand-icon {
    height: 48px;
    width: auto;
    filter: grayscale(100%);
    transition: filter 0.3s ease;
}

.logo-item:hover .brand-icon {
    filter: grayscale(0%);
}

/* Benefits Section */
.benefits {
    padding: 100px 0;
    background-color: var(--primary-white);
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 64px;
    letter-spacing: -1px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.benefit-card {
    padding: 40px;
    background-color: var(--gray-100);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
    margin-bottom: 24px;
}

.benefit-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.benefit-description {
    color: var(--gray-700);
    font-size: 16px;
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
    padding: 100px 0;
    background-color: var(--primary-black);
    color: var(--primary-white);
}

.how-it-works .section-title {
    color: var(--primary-white);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 48px;
}

.step {
    text-align: center;
}

.step-number {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background-color: var(--neon-green);
    color: var(--primary-black);
    font-size: 32px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.step-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.step-description {
    color: var(--gray-300);
    font-size: 16px;
    line-height: 1.6;
}

/* FAQ Section */
.faq {
    padding: 100px 0;
    background-color: var(--primary-white);
}

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

.faq-item {
    border-bottom: 1px solid var(--gray-200);
}

.faq-question {
    width: 100%;
    padding: 24px 0;
    background: none;
    border: none;
    font-family: inherit;
    font-size: 20px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: var(--gray-700);
}

.faq-icon {
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.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-bottom: 24px;
    color: var(--gray-700);
    line-height: 1.6;
}

/* Final CTA Section */
.final-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--gray-900) 100%);
    color: var(--primary-white);
}

.final-cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.final-cta-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.final-cta-subtitle {
    font-size: 20px;
    color: var(--gray-300);
    margin-bottom: 40px;
}


/* Footer */
.footer {
    padding: 40px 0;
    background-color: var(--primary-black);
    color: var(--gray-300);
    text-align: center;
}

.footer-text {
    font-size: 14px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background-color: var(--primary-white);
    border-radius: 16px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 48px;
    z-index: 1001;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
}

.modal-close:hover {
    transform: scale(1.1);
}

.modal-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -1px;
}

.modal-subtitle {
    color: var(--gray-700);
    margin-bottom: 32px;
    font-size: 16px;
}

/* Form Styles */
.signup-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-weight: 600;
    font-size: 14px;
    color: var(--primary-black);
}

.form-input {
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-family: inherit;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-black);
}

/* Confirmation Message */
.confirmation-message {
    text-align: center;
}

.confirmation-icon {
    margin-bottom: 24px;
    display: flex;
    justify-content: center;
    animation: scaleIn 0.5s ease;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

.confirmation-title {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.confirmation-text {
    color: var(--gray-700);
    margin-bottom: 32px;
    font-size: 16px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 40px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .final-cta-title {
        font-size: 36px;
    }
    
    .cta-button-large {
        padding: 14px 24px;
        font-size: 16px;
    }
    
    .logos-grid {
        gap: 32px;
    }
    
    .brand-icon {
        height: 36px;
    }
    
    .benefits-grid,
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        padding: 32px 24px;
    }
    
    .modal-title {
        font-size: 24px;
    }
    
    .benefit-card {
        padding: 32px 24px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .final-cta-title {
        font-size: 28px;
    }
    
    .final-cta-subtitle {
        font-size: 16px;
    }
    
    .cta-button-header {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .header-actions {
        gap: 12px;
    }
    
    .lang-button {
        padding: 5px 10px;
        font-size: 13px;
    }
}