/* Hlavní styly pro celý web */
:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --text-light: #f8fafc;
    --text-muted: #94a3b8;
    --border: rgba(148, 163, 184, 0.2);
    --radius: 12px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
}

/* Hlavní stránka - grid nástrojů */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-decoration: none;
    color: var(--text-light);
    transition: all 0.3s;
    box-shadow: var(--shadow);
}

.tool-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.2);
}

.tool-card h2 {
    color: var(--primary);
    margin-bottom: 10px;
    font-size: 1.4rem;
}

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

/* Header hlavní stránky */
.main-header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-dark) 100%);
    margin-bottom: 40px;
}

.main-header h1 {
    font-size: 3rem;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--primary) 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Footer */
.main-footer {
    text-align: center;
    padding: 30px;
    margin-top: 60px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.main-footer a {
    color: var(--primary);
    text-decoration: none;
}

/* Responsivní */
@media (max-width: 768px) {
    .tools-grid {
        grid-template-columns: 1fr;
        padding: 16px;
    }
    
    .main-header h1 {
        font-size: 2rem;
    }
    
    .tool-card {
        padding: 20px;
    }
}