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

:root {
    --color-bg: #0b0e14;
    --color-surface: #12171f;
    --color-surface-hover: #1a2230;
    --color-text: #e8ecf1;
    --color-muted: #8b95a5;
    --color-accent: #22eef5;
    --color-accent-dim: rgba(34, 238, 245, 0.15);
    --color-border: #1e2733;
    --color-navy: #172741;
    --header-height: 76px;
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
}

.container {
    width: min(1120px, 92%);
    margin: 0 auto;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 14, 20, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    height: 64px;
    width: auto;
    object-fit: contain;
    border-radius: 4px;
}

.logo-text {
    font-size: 1.55rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.logo-text span {
    color: var(--color-accent);
    font-weight: 600;
}

.nav {
    display: flex;
    gap: 1.75rem;
}

.nav a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-muted);
    transition: color 0.15s;
}

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

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

/* Hero */
.hero {
    background-image:url("../img/hero.jpg");
    background-size: 100% auto;
    background-position: center;
    background-repeat: no-repeat;
    border-bottom: 1px solid var(--color-border);
    padding: 5.5rem 0 5rem;
    text-align: center;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.hero-slogan {
    font-family: Calibri, "Segoe UI", Arial, sans-serif;
    font-size: clamp(1.4rem, 4vw, 2.75rem);
    font-weight: 400;
    font-style: italic;
    letter-spacing: -0.01em;
    color: #22eef5;
    text-align: center;
    max-width: 95%;
    margin: 0 auto;
    line-height: 1.15;
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);	
}

/* Dlaždice */
.tiles-section {
    padding: 3rem 0 4rem;
}

.tiles {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.tile {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    min-height: 200px;
    display: flex;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s, background 0.2s;
}

.tile:hover {
    border-color: var(--color-accent);
    background: var(--color-surface-hover);
    box-shadow: 0 0 0 1px var(--color-accent-dim), 0 12px 32px rgba(0, 0, 0, 0.35);
    transform: translateY(-3px);
}

.tile-content {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.tile h2 {
    font-size: 1.35rem;
    font-weight: 650;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
    color: #fff;
}

.tile p {
    color: var(--color-muted);
    font-size: 0.95rem;
    flex: 1;
}

.tile-link {
    margin-top: 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-accent);
}

/* Footer */
.footer {
    border-top: 1px solid var(--color-border);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--color-muted);
    font-size: 0.875rem;
}

/* Responzivita */
@media (max-width: 768px) {
    .logo-text {
        font-size: 1.2rem;
    }

    .logo-img {
        height: 48px;
    }

    .nav {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-surface);
        flex-direction: column;
        padding: 1rem 1.25rem 1.25rem;
        border-bottom: 1px solid var(--color-border);
        gap: 1rem;
    }

    .nav.open {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

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

    .hero {
        padding: 3rem 0 2.75rem;
    }
}
.brand-name {
    color: #fff;
    font-weight: 700;
}

.brand-visions {
    color: var(--color-accent);
    font-weight: 400;   /* není strong – normální řez */
}