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

:root {
    --light-rgba: 255, 255, 255;
    --dark-rgba: 0, 0, 0;
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #8b5cf6;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --shadow-sm: 0 1px 2px 0 rgba(var(--dark-rgba), 0.05);
    --shadow-md: 0 4px 6px -1px rgba(var(--dark-rgba), 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(var(--dark-rgba), 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(var(--dark-rgba), 0.1);
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
}

@media (prefers-color-scheme: dark  ) {
    :root {
        --light-rgba: 0, 0, 0;
        --dark-rgba: 255, 255, 255;
        --primary-color: #5b56e3;
        --primary-dark: #5b56e3;
        --primary-light: #6b66e6;
        --secondary-color: #7b76eb;
        --text-primary: #e0e0e0;
        --text-secondary: #aaa;
        --text-light: #bca3af;
        --bg-primary: #1e1e1e;
        --bg-secondary: #2d2d2d;
        --bg-tertiary: #3d3d3d;
        --border-color: rgba(255, 255, 255, 0.1);
        --success-color: #10b981;
        --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
        --gradient-secondary: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

.container,
.header-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    min-height: 85px;
    display: flex;
    align-items: center;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 1rem 0;
    /* Enable hardware acceleration */
    transform: translateZ(0);
    will-change: transform;
}

.header.scrolled {
    box-shadow: 0 4px 6px -1px rgba(var(--dark-rgba), 0.1);
}

.header-container {
    gap: 1.7rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

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

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-line {
    display: block;
}

.nav-menu-wrapper {
    display: flex;
    align-items: center;
    gap: 1.7rem;
    flex: 1 0 auto;
    justify-content: space-between;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-action-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    transition: background-color 0.3s ease, transform 0.2s ease;
    text-decoration: none;
}

.nav-action-link:hover {
    background-color: var(--bg-secondary);
    transform: translateY(-2px);
}

.coffee-icon {
    width: 24px;
    height: 24px;
    color: var(--text-secondary);
    transition: color 0.3s ease;
    display: block;
}

.nav-action-link:hover .coffee-icon {
    color: var(--primary-color);
}

.nav-menu .btn-primary {
    color: white;

    &.active,
    &:hover {
        color: white;
        background: var(--gradient-secondary);
    }
}

/* Language Switcher */
.lang-switcher-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

#lang-switcher {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 2.5rem 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 80px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 12px;
}

#lang-switcher:hover {
    border-color: var(--primary-color);
    background-color: var(--bg-secondary);
}

#lang-switcher:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

#lang-switcher option {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 0.5rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform: translateZ(0);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    /* Enable hardware acceleration */
    transform: translateZ(0);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
}

.btn-primary:hover {
    transform: translate3d(0, -2px, 0);
    box-shadow: var(--shadow-lg);
    background: var(--gradient-secondary);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    transform: translate3d(0, -2px, 0);
}

.btn-large {
    padding: 1rem 1.6rem;
    font-size: 1.125rem;
}

.main {
    margin-top: 85px;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.hero-content {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.hero-title {
    font-size: 3.3rem;
    font-weight: 800;
    line-height: 1.1;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

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

.hero-stats {
    display: flex;
    gap: 3rem;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: color-mix(in srgb, var(--primary-color) 90%, rgb(var(--dark-rgba)));
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.hero-image {
    position: relative;
    left: -6%;
}

.hero-image img {
    width: 100%;
    height: auto;
    transform: perspective(1500px)
        scale(1)
        rotateX(19deg)
        rotateY(-30deg)
        rotateZ(14deg);
    transform-style: preserve-3d;
    filter: drop-shadow(-10px 0px 40px rgba(var(--dark-rgba), 0.4));
    /* Enable hardware acceleration */
    will-change: transform;
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    background: var(--bg-secondary);
}

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

.feature-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    border: 1px solid var(--border-color);
    /* Enable hardware acceleration */
    transform: translateZ(0);
}

.feature-card:hover {
    transform: translate3d(0, -4px, 0);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 1.5rem;
    border-radius: 0.75rem;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon .icon {
    width: 64px;
    height: 64px;
    color: var(--primary-color);
    mask-image: var(--icon);
    mask-size: contain;
    mask-position: center;
    mask-repeat: no-repeat;
    background: var(--primary-color);
    -webkit-mask-image: var(--icon);
    -webkit-mask-size: contain;
    -webkit-mask-position: center;
    -webkit-mask-repeat: no-repeat;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Platforms Section */
.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
}

.platform-card {
    text-align: center;
    padding: 2rem 1rem;
    background: var(--bg-secondary);
    border-radius: 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    border: 1px solid var(--border-color);
    /* Enable hardware acceleration */
    transform: translateZ(0);
}

.platform-card:hover {
    transform: translate3d(0, -4px, 0);
    box-shadow: var(--shadow-md);
    background: var(--bg-primary);
}

.platform-logo {
    width: 120px;
    height: 120px;
    margin: 0 auto 1.5rem;
    border-radius: 1rem;
    /* background: var(--bg-primary); */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.platform-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.platform-name {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

/* How It Works Section */
.how-it-works {
    background: var(--bg-secondary);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.step {
    display: grid;
    grid-template-columns: 60px auto 1fr;
    gap: 3rem;
    align-items: center;
}

.step:nth-child(even) {
    direction: rtl;
}

.step:nth-child(even) .step-content {
    direction: ltr;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    flex-shrink: 0;
}

.step-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.step-image {
    width: 100%;
    max-width: 400px;
    border-radius: 1rem;
    overflow: hidden;
    margin: 0 auto;
    filter: drop-shadow(0px 0px 13px rgba(var(--dark-rgba), 0.5));
}

.step-image img {
    width: 100%;
    height: auto;
    display: block;
}

.step-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.step-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Benefits Section */
.benefits {
    padding: 80px 0;
}

.benefits-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.benefits-image {
    border-radius: 1rem;
    overflow: hidden;
    filter: drop-shadow(0px 0px 13px rgba(var(--dark-rgba), 0.5));
}

.benefits-image img {
    width: 100%;
    height: auto;
    display: block;
}

.benefits-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.benefit-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.benefit-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.benefit-item h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.benefit-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* FAQ Section */
.faq {
    background: var(--bg-tertiary);
}

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

.faq-item {
    background: var(--bg-primary);
    border-radius: 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    text-align: left;
    background: none;
    border: none;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: var(--bg-secondary);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.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 1.5rem 1.5rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* CTA Section */
.cta {
    background: var(--gradient-primary);
    color: white;
    text-align: center;
    padding: 100px 0;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta .btn-primary {
    background-color: transparent;
    border: 2px solid white;
    color: white;
}

.cta .btn-primary:hover {
    background: white;
    color: var(--primary-color);
}

.cta-note {
    margin-top: 1.5rem;
    font-size: 0.875rem;
    opacity: 0.8;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

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

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

    .step {
        grid-template-columns: 1fr;
    }

    .step:nth-child(even) {
        direction: ltr;
    }

    .step-number {
        margin: 0 auto;
    }

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

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

@media (max-width: 1023px) {
    .nav-menu-wrapper {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 2rem;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-lg);
        gap: 1.5rem;
        overflow-y: auto;
    }

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

    .nav-menu {
        flex-direction: column;
        width: 100%;
        gap: 1.5rem;
        align-items: flex-start;
    }

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

    .nav-menu a {
        display: block;
        padding: 0.75rem 0;
        font-size: 1.1rem;
    }

    .nav-actions {
        flex-direction: column;
        width: 100%;
        gap: 1rem;
        padding-top: 1rem;
        border-top: 1px solid var(--border-color);
    }

    .nav-action-link {
        width: 100%;
        height: 48px;
        justify-content: center;
    }

    .nav-actions .btn-primary {
        width: 100%;
        text-align: center;
    }

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

    .hero {
        padding: 100px 0 60px;
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

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

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
        text-align: center;
    }

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

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

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

    .cta-subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .platforms-grid {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.75rem;
    }
}

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

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* Legal Pages (Privacy Policy, Terms of Service, Contact) */
.legal-page {
    padding: 120px 0 80px;
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.legal-content h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.legal-content .last-updated {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.legal-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.legal-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.legal-content p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.legal-content ul, .legal-content ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
    color: var(--text-secondary);
}

.legal-content li {
    margin-bottom: 0.5rem;
}

.legal-content strong {
    color: var(--text-primary);
    font-weight: 600;
}

.back-link {
    display: inline-block;
    margin-bottom: 2rem;
    color: color-mix(in srgb, var(--primary-color) 70%, rgb(var(--dark-rgba)));
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: var(--primary-dark);
}

/* Contact Form Styles */
.contact-form {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 2.5rem;
    margin: 2.5rem 0;
}

.contact-form h2 {
    margin-top: 0;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.form-submit {
    margin-top: 1rem;
}

.form-submit button {
    padding: 0.875rem 2rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    font-family: inherit;
}

.form-submit button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: var(--gradient-secondary);
}

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

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    display: none;
}

.form-message.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
    display: block;
}

.form-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
    display: block;
}

.field-error {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}