@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');

:root {
    --primary-color: #007BFF;
    --primary-hover-color: #0056b3;
    --secondary-color: #f8f9fa;
    --text-color: #333;
    --light-text-color: #fff;
    --background-color: #ffffff;
    --footer-bg-color: #343a40;
}

body {
    font-family: 'Inter', Arial, sans-serif;
    background: #f7f8fa;
    color: #18191a;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.main-nav {
    width: 100vw;
    left: 0;
    right: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: #fff;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.main-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 2.1rem;
    font-weight: 800;
    color: #1976D2;
    text-decoration: none;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 3.5rem;
    margin: 0;
    padding: 0;
}

nav ul li a {
    font-size: 1.18rem;
    font-weight: 700;
    color: #18191a;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.2em 0.4em;
    border-radius: 8px;
    text-decoration: none;
    transition: color 0.18s, box-shadow 0.18s, border-bottom 0.18s, background 0.18s;
    border-bottom: 2.5px solid transparent;
}
nav ul li a.active,
nav ul li a:hover {
    color: #1976D2;
    border-bottom: 2.5px solid #1976D2;
    background: #E3F2FD;
}
nav ul li svg {
    margin-right: 2px;
}

.hero {
    min-height: 400px;
    background: linear-gradient(120deg, #e0e7ff 0%, #f7f8fa 100%);
    border-radius: 24px;
    box-shadow: 0 4px 32px rgba(80,120,255,0.07);
    margin-top: 2rem;
    padding: 64px 24px 48px 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 1.2rem;
    letter-spacing: -1px;
}
.hero-subtitle {
    font-size: 1.4rem;
    font-weight: 500;
    color: #3a3a3a;
    margin-bottom: 2.2rem;
    letter-spacing: -0.5px;
}

.main-btn {
    background: linear-gradient(90deg, #0077ff 0%, #00c6ff 100%);
    color: #fff;
    border: none;
    border-radius: 32px;
    padding: 18px 48px;
    font-size: 1.25rem;
    font-weight: 700;
    box-shadow: 0 2px 16px rgba(0,119,255,0.10);
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
    margin-top: 12px;
}
.main-btn:hover {
    background: linear-gradient(90deg, #005fcc 0%, #0099ff 100%);
    box-shadow: 0 4px 24px rgba(0,119,255,0.18);
    transform: translateY(-2px) scale(1.03);
}

.small-text {
    font-size: 1rem;
    color: #6c757d;
    margin-top: 1.2rem;
}

section {
    padding: 3.5rem 0 2.5rem 0;
    text-align: center;
}

h1, h2, h3 {
    font-weight: 800;
    letter-spacing: -0.5px;
    margin: 0 0 1.5rem 0;
}

.features-grid {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.feature-card {
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
    padding: 2.2rem 1.5rem 1.5rem 1.5rem;
    flex: 1 1 300px;
    max-width: 340px;
    min-width: 260px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 1.5rem;
}
.feature-icon {
    margin-bottom: 1.2rem;
}
.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.7rem;
}
.feature-card p {
    color: #444;
    font-size: 1.05rem;
    margin: 0;
}

.reviews-list {
    display: flex;
    gap: 2rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}
.review-card {
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
    padding: 1.5rem 1.2rem 1.2rem 1.2rem;
    display: flex;
    align-items: flex-start;
    gap: 1.1rem;
    max-width: 380px;
    min-width: 220px;
}
.review-icon {
    flex-shrink: 0;
    margin-top: 0.2rem;
}
.review-text {
    font-size: 1.08rem;
    color: #222;
    text-align: left;
}
.review-text span {
    display: block;
    margin-top: 0.7rem;
    color: #0077ff;
    font-weight: 600;
    font-size: 1rem;
}

.download-section {
    background-color: #0077ff;
    color: #fff;
    border-radius: 18px;
    margin-top: 2.5rem;
    padding: 2.5rem 1rem;
}
.download-section h2 {
    color: #fff;
}

.footer-minimal {
    text-align: center;
    padding: 2rem 0 1.2rem 0;
    color: #aaa;
    font-size: 1rem;
    letter-spacing: 0.5px;
}

@media (max-width: 800px) {
    .container {
        padding: 0 8px;
    }
    .main-nav {
        flex-direction: column;
        align-items: flex-start;
        padding: 0.5rem 0.5rem;
    }
    nav ul {
        gap: 1rem;
    }
    .hero {
        padding: 32px 6px 24px 6px;
        min-height: 260px;
    }
    .hero-title {
        font-size: 1.5rem;
    }
    .features-grid, .reviews-list {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    .feature-card, .review-card {
        min-width: 0;
        max-width: 100%;
        padding: 1rem;
    }
}