* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --bg-dark: #0f0f1a;
    --bg-card: #1a1a2e;
    --bg-card-hover: #252542;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --border-color: rgba(255, 255, 255, 0.1);
}

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

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 15, 26, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--primary-gradient);
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 50px;
    background: linear-gradient(180deg, #1a1a2e 0%, #0f0f1a 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(102, 126, 234, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -100px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(118, 75, 162, 0.1) 0%, transparent 70%);
    transform: translateY(-50%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: left;
}

.hero-logo {
    margin-bottom: 20px;
}

.hero-logo-img {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    background: var(--primary-gradient);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 15px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 25px;
    max-width: 450px;
}

.hero-stats {
    display: flex;
    gap: 30px;
    margin-bottom: 35px;
}

.stat {
    font-size: 14px;
    color: var(--text-muted);
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.download-btn {
    display: inline-block;
    padding: 15px 40px;
    font-size: 16px;
    font-weight: 600;
    color: white;
    background: var(--primary-gradient);
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.5);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.mockup {
    width: 320px;
    height: 680px;
    background: linear-gradient(180deg, #1a1a2e 0%, #0f0f1a 100%);
    border-radius: 40px;
    padding: 15px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-color);
    position: relative;
}

.screen {
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    border-radius: 35px;
    overflow: hidden;
    position: relative;
}

.screen::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 20px;
    background: #0f0f1a;
    border-radius: 10px;
    z-index: 10;
}

.screen-content {
    padding: 40px 20px 20px;
    height: 100%;
}

.poster-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.poster {
    aspect-ratio: 2/3;
    border-radius: 12px;
    background: var(--primary-gradient);
    opacity: 0.8;
}

.poster:nth-child(1) { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
.poster:nth-child(2) { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }
.poster:nth-child(3) { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); }
.poster:nth-child(4) { background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%); }

.features {
    padding: 100px 0;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-card);
    padding: 40px 30px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.3);
}

.feature-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
}

.about {
    padding: 100px 0;
    background: rgba(26, 26, 46, 0.5);
}

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

.about-content h2 {
    text-align: left;
    margin-bottom: 30px;
}

.about-content p {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 30px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 14px;
}

.check {
    color: #4ade80;
    font-weight: bold;
}

.about-image {
    display: flex;
    justify-content: center;
}

.feature-mockup {
    width: 300px;
    height: 400px;
    background: var(--bg-card);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    border-radius: 15px;
    overflow: hidden;
}

.menu-bar {
    height: 40px;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    padding: 0 15px;
    gap: 10px;
}

.menu-bar::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ff5f56;
}

.menu-bar::after {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ffbd2e;
}

.content-area {
    padding: 15px;
}

.list-item {
    height: 60px;
    background: var(--bg-card);
    border-radius: 10px;
    margin-bottom: 10px;
}

.reviews {
    padding: 100px 0;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.review-card {
    background: var(--bg-card);
    padding: 40px 30px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.review-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(102, 126, 234, 0.3);
}

.stars {
    color: #fbbf24;
    font-size: 20px;
    margin-bottom: 20px;
}

.review-text {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 25px;
    font-style: italic;
}

.reviewer {
    display: flex;
    align-items: center;
    gap: 15px;
}

.avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--primary-gradient);
}

.reviewer-info {
    display: flex;
    flex-direction: column;
}

.name {
    font-size: 14px;
    font-weight: 600;
}

.date {
    font-size: 12px;
    color: var(--text-muted);
}

.download-section {
    padding: 100px 0;
    background: var(--primary-gradient);
    text-align: center;
}

.download-content {
    max-width: 600px;
    margin: 0 auto;
}

.download-logo {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    background: white;
    margin-bottom: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.download-section h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
    color: white;
}

.download-section p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 16px;
    margin-bottom: 35px;
}

.download-btn-large {
    display: inline-block;
    padding: 18px 60px;
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
    background: white;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.download-btn-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.25);
}

.download-note {
    font-size: 13px !important;
    color: rgba(255, 255, 255, 0.6) !important;
    margin-top: 20px !important;
}

.footer {
    padding: 50px 0;
    background: #0a0a12;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 15px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-logo-img {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--primary-gradient);
}

.footer-logo span {
    font-size: 18px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.copyright {
    color: var(--text-muted);
    font-size: 13px;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .menu-btn {
        display: flex;
    }

    .nav-links.active {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(15, 15, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-bottom: 1px solid var(--border-color);
    }

    .menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

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

    .hero-content {
        order: 2;
    }

    .hero-image {
        order: 1;
    }

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

    .hero-subtitle {
        font-size: 16px;
        margin: 0 auto 25px;
    }

    .hero-stats {
        justify-content: center;
        flex-wrap: wrap;
    }

    .mockup {
        width: 260px;
        height: 560px;
    }

    .about .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-content h2 {
        text-align: center;
    }

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

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

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

    .download-section h2 {
        font-size: 28px;
    }

    .download-btn-large {
        padding: 15px 40px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 14px;
    }

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

    .feature-card, .review-card {
        padding: 30px 20px;
    }

    .download-section h2 {
        font-size: 24px;
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 15px 40px rgba(102, 126, 234, 0.6);
    }
}

.download-btn.pulse {
    animation: pulse 0.5s ease-in-out;
}