:root {
    --primary: #009cff;
    --primary-hover: #0073e6;
    --bg-dark: #0f1115;
    --bg-card: #1a1d24;
    --text-main: #ffffff;
    --text-muted: #a0aabf;
    --border-color: #2a2d35;
}

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

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

/* Navbar */
.navbar {
    background-color: rgba(15, 17, 21, 0.9);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    margin-left: 30px;
    font-size: 15px;
    font-weight: 600;
    text-transform: uppercase;
    transition: color 0.3s;
}

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

.logo-container .logo { 
    height: 90px; 
    object-fit: contain; 
    display: block;
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 600px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: url('https://images.unsplash.com/photo-1551698618-1dfe5d97d256?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, rgba(15, 17, 21, 0.7), rgba(15, 17, 21, 1));
}

.hero-content { position: relative; z-index: 10; max-width: 800px; padding: 0 20px; }

.hero-content .subtitle { color: var(--primary); font-size: 18px; letter-spacing: 4px; margin-bottom: 10px; text-transform: uppercase; }

.hero-content .title { font-size: 64px; font-weight: 800; line-height: 1.1; margin-bottom: 20px; text-transform: uppercase; }

.hero-content .desc { font-size: 18px; color: var(--text-muted); margin-bottom: 40px; }

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, #00d4ff 0%, #0073e6 100%);
    color: #fff;
    padding: 16px 40px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    border-radius: 30px;
    transition: transform 0.2s, box-shadow 0.2s;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
}

.btn-primary:hover { 
    background: linear-gradient(135deg, #00bfff 0%, #005bb5 100%); 
    transform: translateY(-2px); 
    box-shadow: 0 4px 15px rgba(0, 156, 255, 0.4);
}

/* Services */
.services { padding: 80px 20px; background-color: var(--bg-dark); }

.cards-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: -120px;
    position: relative;
    z-index: 20;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.card-icon {
    margin-bottom: 25px;
    background: rgba(0, 156, 255, 0.1);
    width: 80px; height: 80px;
    margin: 0 auto 25px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
}

.card h3 { font-size: 22px; margin-bottom: 15px; font-weight: 600; }

.card p { color: var(--text-muted); font-size: 15px; }

/* Nowe sekcje contentowe (zakładki) */
.content-section {
    padding: 60px 20px;
    background-color: var(--bg-dark);
    border-top: 1px solid var(--border-color);
}

.content-section:nth-child(even) {
    background-color: var(--bg-card);
}

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

.section-container h2 {
    color: var(--text-main);
    font-size: 32px;
    margin-bottom: 30px;
    text-transform: uppercase;
    font-weight: 800;
    text-align: center;
}

.section-container img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 15px 0;
}

footer {
    text-align: center;
    padding: 40px 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 14px;
}

/* Mobile */
@media (max-width: 768px) {
    .hero-content .title { font-size: 42px; }
    .nav-container { flex-direction: column; gap: 10px; width: 100%; padding: 10px; box-sizing: border-box; }
    .nav-links { order: 2; margin-top: 5px; flex-wrap: wrap; justify-content: center; width: 100%; max-width: 100%; gap: 10px; }
    .nav-links a { margin: 0; font-size: 12px; text-align: center; white-space: nowrap; }
    .logo-container { order: 1; }
    .logo-container .logo { height: 60px; }
    .cards-container { margin-top: 40px; }
}