/* Apple-inspired Modern Design */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #007AFF;
    --primary-hover: #0051D5;
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f7;
    --bg-tertiary: #000000;
    --border-color: #d2d2d7;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.47059;
    font-weight: 400;
    letter-spacing: -0.022em;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 22px;
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 0.5px solid var(--border-color);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 44px;
}

.logo h1 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-size: 12px;
    font-weight: 400;
    transition: var(--transition);
    opacity: 0.8;
}

.nav-menu a:hover {
    opacity: 1;
}

.btn-nav {
    background: var(--primary-color);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 400;
    transition: var(--transition);
}

.btn-nav:hover {
    background: var(--primary-hover);
    opacity: 1;
}

.lang-switcher {
    margin-left: 10px;
}

.lang-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 4px 12px;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

.lang-btn:hover {
    background: var(--bg-secondary);
}

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

.mobile-menu-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 120px 22px 80px;
    background: linear-gradient(180deg, #ffffff 0%, #f5f5f7 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    z-index: 1;
}

.hero-title {
    font-size: 56px;
    font-weight: 600;
    line-height: 1.07143;
    letter-spacing: -0.005em;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 28px;
    font-weight: 400;
    line-height: 1.14286;
    letter-spacing: 0.007em;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-hero {
    padding: 12px 22px;
    font-size: 17px;
    font-weight: 400;
    border-radius: 22px;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

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

.hero-visual {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-image-placeholder {
    position: relative;
    width: 100%;
    height: 100%;
}

.floating-card {
    position: absolute;
    width: 300px;
    height: 200px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(20px);
    animation: float 6s ease-in-out infinite;
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 15%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 20%;
    left: 50%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

/* Features Section */
.features {
    padding: 100px 22px;
    background: var(--bg-primary);
}

.section-title {
    font-size: 48px;
    font-weight: 600;
    line-height: 1.08349;
    letter-spacing: -0.003em;
    text-align: center;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 21px;
    font-weight: 400;
    line-height: 1.381;
    letter-spacing: 0.011em;
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 60px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg-primary);
    padding: 40px;
    border-radius: 18px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-color);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    line-height: 1.16667;
    letter-spacing: 0.009em;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 17px;
    font-weight: 400;
    line-height: 1.47059;
    letter-spacing: -0.022em;
    color: var(--text-secondary);
}

/* Pricing Section */
.pricing {
    padding: 100px 22px;
    background: var(--bg-secondary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto 40px;
}

.pricing-card {
    background: var(--bg-primary);
    border-radius: 18px;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.pricing-card.featured {
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-md);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.pricing-card h3 {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.price {
    margin-bottom: 30px;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.currency {
    font-size: 24px;
    font-weight: 400;
    color: var(--text-primary);
}

.amount {
    font-size: 56px;
    font-weight: 600;
    line-height: 1;
    color: var(--text-primary);
}

.period {
    font-size: 21px;
    font-weight: 400;
    color: var(--text-secondary);
}

.pricing-card ul {
    list-style: none;
    margin: 30px 0;
    text-align: left;
}

.pricing-card ul li {
    padding: 12px 0;
    font-size: 17px;
    color: var(--text-primary);
    position: relative;
    padding-left: 24px;
}

.pricing-card ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 600;
}

.pricing-card .btn-primary {
    width: 100%;
    margin-top: 20px;
}

.pricing-note {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Footer */
.footer {
    background: var(--bg-tertiary);
    color: white;
    padding: 60px 22px 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.footer-section p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.47059;
}

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

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

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

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 44px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        gap: 20px;
        transform: translateX(-100%);
        transition: var(--transition);
        border-bottom: 0.5px solid var(--border-color);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

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

    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 21px;
    }

    .section-title {
        font-size: 36px;
    }

    .feature-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .btn-hero {
        width: 100%;
        max-width: 300px;
    }
}