:root {
    --primary: #505BDA;
    --primary-dark: #2A2C6E;
    --primary-light: #7BC9F5;
    --accent: #00F9FF;

    --text: #1a1d26;
    --text-muted: #6c757d;
    --text-inverse: #ffffff;

    --bg: #f4f6fb;
    --surface: #ffffff;
    --surface-elevated: #ffffff;
    --border: #dde1ea;
    --border-soft: #eef1f7;

    --danger: #dc3545;
    --danger-soft: #ffe5e5;
    --success: #0d9f6e;
    --success-soft: #e6f7f1;
    --warning: #b45309;
    --warning-soft: #fff4e5;

    --sidebar-width: 260px;
    --header-height: 72px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
    --shadow-md: 0 8px 24px rgba(16, 24, 40, 0.08);
    --shadow-lg: 0 16px 40px rgba(16, 24, 40, 0.12);
    --font: 'Inter', system-ui, -apple-system, sans-serif;
    --transition: 0.2s ease;
    --gradient-sidebar: linear-gradient(180deg, var(--primary-dark) 0%, #1a1c4a 100%);
    --gradient-hero: linear-gradient(145deg, var(--primary-dark) 0%, var(--primary) 50%, #3d4eb8 100%);
}

[data-theme="dark"] {
    --text: #e8eaef;
    --text-muted: #9aa3b2;
    --bg: #0f1117;
    --surface: #171a23;
    --surface-elevated: #1e2230;
    --border: #2a3142;
    --border-soft: #232836;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font);
    color: var(--text);
    background: var(--bg);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

.material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-weight: normal;
    font-style: normal;
    font-size: 1.25rem;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr;
    -webkit-font-smoothing: antialiased;
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    vertical-align: middle;
}