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

:root {
    --primary: #0057b8;
    --primary-dark: #003d82;
    --accent: #00b4d8;
    --dark: #1a1a2e;
    --gray: #f4f5f7;
    --text: #333;
    --white: #fff;
    --radius: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    color: var(--primary);
    text-decoration: none;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav a {
    color: var(--text);
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text);
}

/* Hero */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, var(--dark) 0%, var(--primary-dark) 100%);
    color: var(--white);
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 32px;
}

.btn {
    display: inline-block;
    padding: 14px 36px;
    background: var(--accent);
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
}

.btn:hover {
    background: #009bb8;
    transform: translateY(-2px);
}

/* Services */
.services {
    padding: 80px 0;
}

.services h2,
.why h2,
.contact h2 {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 48px;
    color: var(--dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--white);
    border: 1px solid #e8e8ee;
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: box-shadow 0.3s, transform 0.3s;
}

.service-card:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    transform: translateY(-4px);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.service-card p {
    font-size: 0.95rem;
    color: #666;
}

/* Why section */
.why {
    padding: 80px 0;
    background: var(--gray);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.why-item {
    text-align: center;
}

.why-item strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--primary);
}

.why-item p {
    color: #666;
    font-size: 0.95rem;
}

/* Contact */
.contact {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info p {
    margin-bottom: 12px;
    line-height: 1.8;
}

.contact-form h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--dark);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 16px;
    margin-bottom: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.contact-form .btn {
    width: 100%;
}

/* Footer */
.footer {
    padding: 24px 0;
    background: var(--dark);
    color: rgba(255,255,255,0.6);
    text-align: center;
    font-size: 0.9rem;
}

/* Mobile */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    }

    .nav.open {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1.05rem;
    }

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