/* Globálne resety a štýly */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
}

body {
    background: #f8fafc;
    color: #1e293b;
    overflow: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 1. HEADER DOCK */
header {
    background: #0f172a; /* Tmavá nočná modrá */
    color: white;
    padding: 12px 24px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    z-index: 1010;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo-zone h1 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(45deg, #38bdf8, #2ecc71);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-zone p {
    font-size: 11px;
    opacity: 0.6;
    margin-top: 2px;
}

/* Vylepšený Filter */
.filter-zone select {
    background: #1e293b;
    color: white;
    border: 1px solid #334155;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    outline: none;
    cursor: pointer;
    transition: all 0.2