/* Clean & Minimal Design */
:root {
    --primary: #30b196;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --bg: #ffffff;
    --shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 30px;
}

/* Hero Section */
.hero {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 0;
    background: linear-gradient(to bottom, #f8fafb 0%, #ffffff 100%);
}

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

.logo {
    max-width: 250px;
    width: 100%;
    height: auto;
    margin-bottom: 40px;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.06));
}

.title {
    font-size: 48px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 40px;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 20px;
    font-weight: 400;
    color: var(--text-light);
    margin-bottom: 40px;
    margin-top: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Description Section */
.description {
    max-width: 700px;
    margin: 0 auto 50px;
    text-align: left;
}

.description-text {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: 20px;
    font-weight: 400;
}

.description-text:last-child {
    margin-bottom: 0;
}

/* Features Section */
.features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-bottom: 50px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: var(--text-dark);
    font-weight: 500;
}

.feature-item i {
    color: var(--primary);
    font-size: 18px;
}

/* App Buttons */
.app-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.app-store-btn,
.play-store-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 32px;
    background: #000000;
    color: white;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.app-store-btn:hover,
.play-store-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.15);
}

.app-buttons i {
    font-size: 36px;
}

.btn-text {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.btn-small {
    font-size: 12px;
    font-weight: 400;
    opacity: 0.9;
}

.btn-large {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.2;
}

/* Footer */
.footer {
    text-align: center;
    padding: 40px 30px;
    background: #f8fafb;
    border-top: 1px solid #eef1f4;
}

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

/* Responsive */
@media (max-width: 768px) {
    .logo {
        max-width: 200px;
        margin-bottom: 30px;
    }
    
    .title {
        font-size: 32px;
        margin-bottom: 16px;
    }
    
    .subtitle {
        font-size: 18px;
        margin-bottom: 30px;
    }
    
    .description {
        margin-bottom: 40px;
    }
    
    .description-text {
        font-size: 16px;
        line-height: 1.7;
    }
    
    .features {
        gap: 20px;
        margin-bottom: 40px;
    }
    
    .feature-item {
        font-size: 14px;
    }
    
    .app-buttons {
        flex-direction: column;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .app-store-btn,
    .play-store-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 40px 0;
    }
    
    .container {
        padding: 0 20px;
    }
    
    .logo {
        max-width: 180px;
    }
    
    .title {
        font-size: 28px;
    }
    
    .subtitle {
        font-size: 16px;
        margin-bottom: 25px;
    }
    
    .description {
        margin-bottom: 35px;
    }
    
    .description-text {
        font-size: 15px;
        line-height: 1.7;
        margin-bottom: 18px;
    }
    
    .features {
        flex-direction: column;
        gap: 15px;
        margin-bottom: 35px;
    }
    
    .feature-item {
        font-size: 14px;
        justify-content: center;
    }
    
    .app-buttons i {
        font-size: 32px;
    }
    
    .btn-large {
        font-size: 16px;
    }
}