:root {
    --primary: #141420;
    --secondary: #23233a;
    --accent: #fd6e6a;
    --accent2: #4fd1c5;
    --text: #e6e6e6;
    --muted: #b6b6b6;
    --card: #23233a;
    --white: #fff;
    --shadow: rgba(0,0,0,0.22);
}

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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: var(--primary);
    color: var(--text);
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

header {
    background: var(--secondary);
    color: var(--text);
    box-shadow: 0 2px 4px var(--shadow);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.2rem 0;
}

.logo {
    font-size: 1.7rem;
    font-weight: bold;
    letter-spacing: 2px;
    color: var(--accent2);
}

nav a {
    color: var(--text);
    margin-left: 2rem;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover {
    color: var(--accent);
}

.hero {
    background: linear-gradient(100deg, var(--secondary) 60%, var(--primary) 100%);
    color: var(--text);
    padding: 4rem 0 2rem 0;
}

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

.hero-content div {
    max-width: 540px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--accent2);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 1.8rem;
    color: var(--muted);
}

.cta-btn {
    background: var(--accent);
    color: var(--white);
    padding: 0.9rem 2.2rem;
    border: none;
    border-radius: 6px;
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
    box-shadow: 0 2px 6px var(--shadow);
    transition: background 0.2s;
}

.cta-btn:hover {
    background: var(--accent2);
    color: var(--primary);
}

.hero-img {
    width: 340px;
    border-radius: 18px;
    box-shadow: 0 4px 24px var(--shadow);
    margin-top: 1.5rem;
}

.features {
    background: var(--primary);
    padding: 4rem 0 3rem 0;
}

.features h2 {
    text-align: center;
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 2.5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--card);
    border-radius: 12px;
    padding: 2rem 1.5rem;
    box-shadow: 0 2px 8px var(--shadow);
    text-align: center;
    color: var(--text);
}

.feature-card h3 {
    color: var(--accent2);
    margin-bottom: 0.7rem;
}

.feature-card p {
    color: var(--muted);
}

.about {
    background: var(--secondary);
    color: var(--text);
    padding: 4rem 0;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.about-img {
    width: 320px;
    border-radius: 15px;
    box-shadow: 0 3px 18px var(--shadow);
}

.about-content div {
    max-width: 540px;
}

.about h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--accent2);
}

.learn-more-btn {
    display: inline-block;
    margin-top: 1.4rem;
    background: var(--accent2);
    color: var(--primary);
    padding: 0.7rem 1.8rem;
    border-radius: 5px;
    font-weight: bold;
    text-decoration: none;
    transition: background 0.2s;
}

.learn-more-btn:hover {
    background: var(--accent);
    color: var(--white);
}

.download {
    padding: 4rem 0 3rem 0;
    text-align: center;
    background: var(--primary);
}

.download h2 {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

.download-content p {
    margin-bottom: 2rem;
    color: var(--muted);
}

footer {
    background: var(--secondary);
    color: var(--muted);
    padding: 1.5rem 0;
    text-align: center;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

.footer-content a {
    color: var(--accent2);
    text-decoration: none;
    margin: 0 0.8rem;
    transition: color 0.2s;
}

.footer-content a:hover {
    color: var(--accent);
}

@media (max-width: 900px) {
    .hero-content, .about-content, .footer-content {
        flex-direction: column;
        text-align: center;
    }
    .hero-img, .about-img {
        margin: 1.5rem auto 0 auto;
    }
    .about-content {
        gap: 2rem;
    }
}