:root {
    /* Wyrafinowana paleta kolorów */
    --primary: #f1c40f;
    --primary-soft: rgba(241, 196, 15, 0.1);
    --dark-surface: #111214;
    --dark-subtle: #1a1c1e;
    --light-surface: #ffffff;
    --bg-app: #f4f7f9;
    
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-white: #ffffff;
    
    --border: rgba(226, 232, 240, 0.8);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.4);
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.02);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.02);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.08), 0 10px 10px -5px rgba(0,0,0,0.03);
    
    --radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-app);
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar styling */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-3 { gap: 1rem; }
.gap-4 { gap: 1.5rem; }
.mb-4 { margin-bottom: 1.5rem; }

.btn {
    padding: 10px 20px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background-color: var(--primary);
    color: #000;
}

.btn-primary:hover {
    box-shadow: 0 4px 12px rgba(241, 196, 15, 0.3);
    transform: translateY(-1px);
}