@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&display=swap');

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa; /* Jasny szary dla sekcji */
    --text-primary: #1e293b; /* Ciemny granat/szary - czytelniejszy niż czarny */
    --text-secondary: #64748b;
    --accent-blue: #2563eb; /* Royal Blue - kolor zaufania w IT */
    --accent-dark: #0f172a;
    --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    margin: 0;
    line-height: 1.6;
}

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

/* --- Nawigacja --- */
.top-nav {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid #e2e8f0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(5px);
}

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

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

.brand .highlight {
    color: var(--accent-blue);
}

.links {
    display: flex;
    gap: 30px;
    align-items: center;
}

    .links a {
        text-decoration: none;
        color: var(--text-primary);
        font-weight: 500;
        font-size: 0.95rem;
        transition: color 0.2s;
    }

        .links a:hover {
            color: var(--accent-blue);
        }

.btn-contact {
    background-color: var(--accent-dark);
    color: white !important;
    padding: 8px 20px;
    border-radius: 6px;
    transition: transform 0.2s !important;
}

    .btn-contact:hover {
        transform: translateY(-2px);
    }

/* --- Hero Section --- */
.hero {
    padding: 100px 0 80px;
    text-align: center;
    background: radial-gradient(circle at top right, #eff6ff, #fff);
}

    .hero h1 {
        font-size: 3.5rem;
        font-weight: 800;
        color: var(--accent-dark);
        line-height: 1.1;
        margin-bottom: 20px;
    }

    .hero p {
        font-size: 1.25rem;
        color: var(--text-secondary);
        max-width: 700px;
        margin: 0 auto 40px;
    }

/* --- Karty Oferty --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    text-align: left;
}

    .feature-card:hover {
        box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
        transform: translateY(-5px);
        border-color: var(--accent-blue);
    }

    .feature-card h3 {
        margin-top: 0;
        font-size: 1.4rem;
        color: var(--accent-dark);
    }

.tech-tag {
    display: inline-block;
    background: #eff6ff;
    color: var(--accent-blue);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 15px;
    margin-right: 5px;
}

/* --- Footer --- */
.footer {
    border-top: 1px solid #e2e8f0;
    padding: 40px 0;
    margin-top: 80px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}