@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700;900&display=swap');

:root {
    --blue-gradient: linear-gradient(135deg, #4da3ff, #0052cc);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: #222;
    background: #f2f2f2;
    margin: 0;
    padding: 0;
}

header {
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.6rem;
    font-weight: 900;
    color: #fff;
    text-decoration: none;
    text-transform: uppercase;
    padding-left: 30px;
}

.logo span {
    color: #4da3ff;
}

nav {
    display: flex;
    margin-left: auto;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 35px;
    margin: 0;
    padding: 0 30px 0 0;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    transition: 0.3s;
}

nav ul li a:hover {
    color: #4da3ff;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-up {
    animation: fadeUp 2.5s ease forwards;
}

.hero-bg {
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), 
                url('../img/start.png') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
}

.gradient-text {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    margin-bottom: 10px;
    text-transform: uppercase;
    background: linear-gradient(to bottom, #ffffff 40%, #4da3ff 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.5rem;
    letter-spacing: 2px;
    color: #4da3ff;
    margin-top: 0;
    font-weight: 700;
    text-transform: uppercase;
}

.hero-content p {
    font-size: 1.2rem;
    margin: 0;
    font-weight: 400;
}

.btn-cta {
    display: inline-block;
    margin-top: 30px;
    padding: 15px 35px;
    background: var(--blue-gradient);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    border-radius: 50px;
    text-transform: uppercase;
    transition: 0.3s;
    border: none;
}

.btn-cta:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 82, 204, 0.4);
}

.btn-container {
    text-align: center;
    margin-top: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

h2 {
    font-size: 2.5rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 40px;
    text-transform: uppercase;
}

h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 5px;
    background: var(--blue-gradient);
    margin: 15px auto 0;
    border-radius: 2px;
}

.zastosowania-sekcja {
    background: #0f1720;
    color: white;
}

.oferta-sekcja {
    background: #0f1720;
    color: white;
}

.zastosowania-sekcja h2 {
    color: white;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.zalety-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    text-align: center;
}

.zaleta-box {
    background: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: 0.4s;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.zastosowania-sekcja .zaleta-box {
    background: #151f2b;
    color: white;
}

.zaleta-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.zaleta-icon {
    width: 65px;
    height: 65px;
    background: var(--blue-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    margin: 0 auto 25px;
    box-shadow: 0 10px 25px rgba(0, 120, 255, 0.3);
}

.zaleta-icon i {
    font-size: 26px;
    color: white;
}

.zaleta-box h3 {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 15px;
    text-transform: uppercase;
}

.zaleta-box p {
    font-size: 1rem;
    line-height: 1.6;
    color: #4b5563;
}

.zastosowania-sekcja .zaleta-box p {
    color: #cbd5e1;
}

.zalety-pro {
    background: #f4f4f4;
    padding: 0;
    margin: 5px;
}

.zalety-pro .subtitle {
    text-align: center;
    color: #6b7280;
    font-size: 1.1rem;
    margin-top: -20px;
    margin-bottom: 60px;
}

.galeria-sekcja {
    background: #111;
    color: #fff;
    padding: 10px;
}

.slider {
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

.slider-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.foto {
    min-width: 100%;
}

.foto img {
    width: 100%;
    height: 600px;
    object-fit: contain;
    display: block;
    cursor: zoom-in;
    background-color: #111;
}

.strzalka {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--blue-gradient);
    border: none;
    color: white;
    width: 50px;
    height: 50px;
    cursor: pointer;
    font-size: 1.2rem;
    z-index: 10;
    border-radius: 50%;
}

.lewa { left: 10px; }
.prawa { right: 10px; }

.kontakt-sekcja {
    background: #f2f2f2;
}

.contact-info h3 {
    font-weight: 800;
    color: #000;
    text-transform: uppercase;
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.contact-info p {
    font-weight: 400;
    color: #4b5563;
    font-size: 1.1rem;
    margin: 0;
}

.modal {
    display: none;
    position: fixed;
    z-index: 3000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    align-items: center;
    justify-content: center;
}

.modal-content {
    max-width: 90%;
    max-height: 85vh;
    border: 3px solid #4da3ff;
}

.close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #fff;
    font-size: 60px;
    cursor: pointer;
}

footer {
    background: #000;
    color: #555;
    padding: 40px;
    text-align: center;
    font-size: 0.8rem;
}

@media (max-width: 768px) {
    nav { display: none; }
    .foto img { height: 350px; }
    .contact-grid, .zalety-grid { grid-template-columns: 1fr; }
    .container { padding: 40px 20px; }
}