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

:root {
    --bg-primary: #000000;
    --bg-secondary: rgba(255, 255, 255, 0.06);
    --bg-glass: rgba(255, 255, 255, 0.08);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --accent: #007AFF;
    --accent-hover: #0051D5;
    --border: rgba(255, 255, 255, 0.08);
    --shadow: rgba(0, 0, 0, 0.3);
    --radius: 14px;
    --radius-small: 12px;
    --radius-large: 20px;
}

html {
    scroll-behavior: smooth;
}

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: 12px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

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

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(0, 0, 0, 0.8) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    animation: fadeInUp 0.8s ease;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -1px;
    background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 0.8s ease;
}

.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 40px;
    padding: 20px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 20px 60px var(--shadow);
}

.phone-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 30px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: var(--radius-small);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    letter-spacing: -0.2px;
}

.btn-primary {
    background: var(--accent);
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(0, 122, 255, 0.3);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 122, 255, 0.4);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.15);
}

.btn-download {
    width: 100%;
    margin-top: 16px;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-primary);
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 8px 32px var(--shadow);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

.feature-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Download Section */
.download {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(0, 0, 0, 0.9) 100%);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-bottom: 40px;
}

.download-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 32px;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.download-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 8px 32px var(--shadow);
}

.download-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.download-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.download-text {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.download-note {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 12px;
}

.download-info {
    background: rgba(255, 59, 48, 0.1);
    border: 1px solid rgba(255, 59, 48, 0.2);
    border-radius: var(--radius);
    padding: 24px;
    margin-top: 40px;
    text-align: center;
}

.info-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--bg-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.contact-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.contact-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 8px 32px var(--shadow);
}

.contact-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.contact-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.contact-text {
    font-size: 15px;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.8);
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo-img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.footer-logo-text {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.footer-text {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.3px;
}

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

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 14px;
    color: var(--text-muted);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        gap: 20px;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        border-bottom: 1px solid var(--border);
    }

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

    .menu-toggle {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

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

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .phone-mockup {
        width: 240px;
        height: 480px;
    }

    .section-title {
        font-size: 32px;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 120px 0 60px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }

    .section-title {
        font-size: 28px;
    }

    .feature-card,
    .download-card,
    .contact-card {
        padding: 24px;
    }
}