/* --- Globálne resety a premenné --- */
:root {
    --bg-matte-dark: #0f1011;      /* Ultra matná čierna */
    --bg-card: #161719;             /* O niečo svetlejšia matná pre karty */
    --accent-color: #ffffff;        /* Čistá biela pre dôležité prvky */
    --text-main: #e4e4e7;           /* Off-white pre skvelú čitateľnosť textu */
    --text-muted: #a1a1aa;          /* Šedá pre menej podstatný text */
    --border-color: #27272a;        /* Jemná linka na oddelenie prvkov */
    --font-sans: 'Inter', sans-serif;
}

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

body {
    background-color: var(--bg-matte-dark);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* --- Navigácia --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(15, 16, 17, 0.85); /* Polopriehľadný matný efekt */
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent-color);
    text-decoration: none;
    letter-spacing: 2px;
}

.logo span {
    font-weight: 300;
    color: var(--text-muted);
    margin-left: 4px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 30px;
    font-size: 0.95rem;
    font-weight: 400;
    transition: color 0.3s ease;
}

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

/* --- Hero Sekcia --- */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: radial-gradient(circle at 80% 20%, #1c1d21 0%, var(--bg-matte-dark) 50%);
}

.hero-content {
    max-width: 700px;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.15;
    color: var(--accent-color);
    letter-spacing: -1px;
    margin-bottom: 25px;
}

.hero-content p {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    font-weight: 300;
}

.btn-primary {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--bg-matte-dark);
    padding: 15px 35px;
    text-decoration: none;
    font-weight: 600;
    border-radius: 4px;
    transition: transform 0.2s ease, opacity 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    opacity: 0.95;
}

/* --- Sekcia Služby --- */
.services-section {
    padding: 120px 0;
    border-top: 1px solid var(--border-color);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 60px;
    letter-spacing: -0.5px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: 6px;
    transition: border-color 0.3s ease, transform 0.3s ease;
}

.service-card:hover {
    border-color: #444446;
    transform: translateY(-4px);
}

.card-icon {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 25px;
    letter-spacing: 1px;
}

.service-card h3 {
    font-size: 1.35rem;
    color: var(--accent-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 300;
}

/* --- Kontaktná Sekcia --- */
.contact-section {
    padding: 120px 0;
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-color);
}

.contact-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.contact-text h2 {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.contact-text p {
    color: var(--text-muted);
    font-weight: 300;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background-color: var(--bg-matte-dark);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 15px;
    border-radius: 4px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: #52525b;
}

.btn-submit {
    background-color: var(--accent-color);
    color: var(--bg-matte-dark);
    border: none;
    padding: 16px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.btn-submit:hover {
    opacity: 0.9;
}

/* --- Pätička --- */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* --- Responzivita (Mobilné zariadenia) --- */
@media (max-width: 768px) {
    .contact-box {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        display: none; /* Pre plnohodnotný web by sa tu pridal JS hamburger, zatiaľ schované kvôli čistému HTML */
    }
}