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

:root {
    --primary-blue: #4A90D9;
    --dark-blue: #2D5A8A;
    --text-dark: #1a1a1a;
    --text-gray: #666;
    --bg-light: #f8fafc;
    --white: #ffffff;
}

body {
    font-family: 'Montserrat', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
}

h1, h2, h3 {
    font-family: 'Bitter', serif;
    font-weight: 700;
}

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

/* Header */
header {
    background: var(--white);
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo img {
    height: 40px;
}

.app-store-link img {
    height: 44px;
    transition: transform 0.2s;
}

.app-store-link:hover img {
    transform: scale(1.05);
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #e8f4fd 0%, #f0f7ff 100%);
    padding: 80px 0;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 2.8rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 30px;
}

.hero-image {
    flex: 1;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
}

/* How it Works */
.how-it-works {
    padding: 80px 0;
    background: var(--white);
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
}

.steps {
    display: flex;
    gap: 40px;
    justify-content: center;
}

.step {
    flex: 1;
    max-width: 320px;
    text-align: center;
    padding: 30px;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.step p {
    color: var(--text-gray);
}

/* Features */
.features {
    padding: 80px 0;
    background: var(--bg-light);
}

.features h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: transform 0.2s;
}

.feature:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.feature h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.feature p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* Footer */
footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 40px 0;
}

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

.footer-links {
    margin-bottom: 20px;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    margin: 0 15px;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.footer-links a:hover {
    opacity: 1;
}

.footer-contact {
    margin-bottom: 10px;
}

.footer-contact a {
    color: var(--primary-blue);
    text-decoration: none;
}

.footer-copyright {
    opacity: 0.6;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 900px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.2rem;
    }

    .steps {
        flex-direction: column;
        align-items: center;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .hero {
        padding: 50px 0;
    }

    .hero-text h1 {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

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

    header nav {
        flex-direction: column;
        gap: 15px;
    }
}