:root {
    /* Marca Nubium */
    --color-primary: #fbba2c;
    --color-primary-hover: #e6a800;
    --color-primary-dark: #f0b020;
    --color-primary-light: rgba(251, 186, 44, 0.12);
    --color-primary-glow: rgba(251, 186, 44, 0.3);

    /* Shell */
    --color-header: #302f2f;
    --color-header-top: #343434;
    --color-header-bottom: #2a2a2a;
    --banner-height: 64px;
    --color-text: #333;
    --color-text-secondary: #555;
    --color-text-muted: #6c757d;
    --color-link: #2c3e50;
    --color-danger: #e74c3c;

    /* Superfícies */
    --color-surface: #ffffff;
    --color-surface-muted: #f8f9fb;
    --color-border: #e8eaed;
    --color-border-input: #ddd;

    /* Fundo da página */
    --color-bg-start: #f8f9fb;
    --color-bg-end: #eef1f6;

    /* Status semânticos */
    --color-success-bg: #d4edda;
    --color-success-text: #155724;
    --color-success-border: #c3e6cb;
    --color-error-bg: #f8d7da;
    --color-error-text: #721c24;
    --color-error-border: #f5c6cb;
    --color-warning-bg: #fff3cd;
    --color-warning-text: #856404;
    --color-info-bg: #e7f1ff;
    --color-info-text: #0a58ca;

    /* Raios */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 14px;

    /* Sombras */
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-button: 0 2px 6px rgba(251, 186, 44, 0.25);
    --shadow-dropdown: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-banner: 0 2px 12px rgba(0, 0, 0, 0.15);

    /* Tipografia */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-mono: Consolas, 'Courier New', monospace;

    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;

    /* Breakpoints (referência) */
    --bp-tablet: 768px;
    --bp-desktop-narrow: 1200px;
}