@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Bảng màu trung tính sang trọng */
    --bg-app: #fbfbfc;
    --bg-surface: #ffffff;
    --bg-hover: #f1f5f9;
    
    /* Bảng màu chính */
    --primary: #0061ff; 
    --primary-hover: #0052cc;
    --primary-light: #eef4ff;
    
    /* Bảng màu Trạng thái */
    --danger: #ef4444;
    --danger-light: #fef2f2;
    --success: #10b981;
    --warning: #f59e0b;
    
    /* Text & Border */
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-light: #e2e8f0;
    
    /* Shadow & Border Radius */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    --shadow-modal: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-app);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Tùy chỉnh thanh cuộn (Scrollbar) */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }