:root {
    --primary: rgb(29, 69, 111);
    --bg: #f9fafb;
    --text: #111827;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.hub-header {
    background: white;
    padding: 1rem 0;
    border-bottom: 1px solid #e5e7eb;
}

.hub-logo {
    height: 60px;
}

/* Main content */
.hub-main {
    flex: 1;
    padding: 1.5rem;
}

.hub-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: var(--primary);
}

/* Grid a Karty */
.hub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.hub-card {
    background: white;
    border-radius: 1rem;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 1px solid #e5e7eb;
    overflow: hidden;
}

.hub-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.08);
    border-color: var(--primary);
}

.hub-card-content {
    padding: 2rem;
    flex: 1;
}

.hub-card-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 1rem;
}

.hub-card h2 {
    margin: 0 0 0.75rem 0;
    font-size: 1.25rem;
    color: var(--primary);
}

.hub-card p {
    margin: 0;
    color: #6b7280;
    line-height: 1.5;
}

.hub-card-footer {
    background: #f3f4f6;
    padding: 1rem 2rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--primary);
}

/* Poznámka pod čarou */
.hub-coming-soon {
    margin-top: 3rem;
    font-style: italic;
    color: #797b7f;
    text-align: center;
}

/* Footer */
.hub-footer {
    background-color: var(--primary);
    color: white;
    padding: 3rem 0;
    margin-top: auto;
}

.hub-footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 0.75rem;
}

.hub-footer a {
    color: rgba(255, 255, 255);
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.hub-footer a:hover {
    color: white;
    text-decoration: underline;
}

.hub-footer .copyright {
    font-size: 0.85rem;
}

@media (max-width: 600px) {
    .hub-title { font-size: 2rem; }
}