:root {
	/* Brand Core */
	--rb-brand-primary: #1d4f68;
	--rb-brand-primary-hover: #153b4f;
	--rb-brand-secondary: #5f8597;
	--rb-brand-secondary-hover: #496979;
	--rb-brand-accent: #d3a24a;
	--rb-brand-accent-hover: #b98732;
	--rb-brand-primary-rgb: 29, 79, 104;
	--rb-brand-secondary-rgb: 95, 133, 151;
	--rb-brand-accent-rgb: 211, 162, 74;
	--rb-surface-contrast-rgb: 19, 42, 55;
	--rb-hero-canvas-primary: #2b6784;
	--rb-hero-canvas-accent: #e2c181;

	/* Surfaces */
	--rb-surface-base: #f4f7f8;
	--rb-surface-soft: #e8eef1;
	--rb-surface-muted: #d6e0e5;
	--rb-surface-contrast: #132a37;
	--rb-surface-overlay: rgba(19, 42, 55, 0.78);
	--rb-surface-soft-fade: rgba(232, 238, 241, 0.92);
	--rb-surface-transparent: rgba(232, 238, 241, 0);
	--rb-surface-base-elevated: rgba(244, 247, 248, 0.94);
	--rb-inverse-soft: rgba(245, 249, 250, 0.84);
	--rb-inverse-strong: rgba(252, 253, 253, 0.95);
	--rb-inverse-mid: rgba(243, 247, 249, 0.9);
	--rb-inverse-link: rgba(248, 251, 252, 0.9);
	--rb-inverse-border: rgba(214, 224, 229, 0.36);
	--rb-inverse-border-soft: rgba(214, 224, 229, 0.2);
	--rb-inverse-hover: rgba(214, 224, 229, 0.16);

	/* Text */
	--rb-text-strong: #183645;
	--rb-text-body: #4f6774;
	--rb-text-muted: #7b919d;
	--rb-text-inverse: #f9fcfd;
	--rb-text-link: #1d4f68;

	/* Border & Focus */
	--rb-border-default: #d7e1e6;
	--rb-border-strong: #b7c6cf;
	--rb-border-soft: #e9eff2;
	--rb-focus-ring: rgba(95, 133, 151, 0.2);

	/* Status */
	--rb-state-success: #4f7f6b;
	--rb-state-success-bg: #ebf4ef;
	--rb-state-success-border: rgba(79, 127, 107, 0.28);
	--rb-state-warning: #b78636;
	--rb-state-warning-bg: #f9f1e4;
	--rb-state-danger: #c05d4e;
	--rb-state-danger-bg: #fcecea;
	--rb-state-danger-border: rgba(192, 93, 78, 0.28);
	--rb-state-info: #1d4f68;
	--rb-state-info-bg: #e9f1f5;
	--rb-state-info-border: rgba(29, 79, 104, 0.24);

	/* Radius System */
	--rb-radius-xs: 8px;
	--rb-radius-sm: 12px;
	--rb-radius-md: 16px;
	--rb-radius-lg: 22px;
	--rb-radius-xl: 30px;
	--rb-radius-pill: 999px;

	/* Shadow System */
	--rb-shadow-sm: 0 12px 24px rgba(19, 42, 55, 0.08);
	--rb-shadow-md: 0 22px 44px rgba(29, 79, 104, 0.14);
	--rb-shadow-lg: 0 36px 84px rgba(19, 42, 55, 0.2);

	/* Motion */
	--rb-ease-standard: cubic-bezier(0.25, 0.8, 0.25, 1);
	--rb-duration-fast: 160ms;
	--rb-duration-base: 260ms;
	--rb-duration-slow: 420ms;
	--rb-transition-fast: all var(--rb-duration-fast) var(--rb-ease-standard);
	--rb-transition-base: all var(--rb-duration-base) var(--rb-ease-standard);
	--rb-transition-slow: all var(--rb-duration-slow) var(--rb-ease-standard);

	/* Spacing Scale */
	--rb-space-1: 0.25rem;
	--rb-space-2: 0.5rem;
	--rb-space-3: 0.75rem;
	--rb-space-4: 1rem;
	--rb-space-5: 1.25rem;
	--rb-space-6: 1.5rem;
	--rb-space-8: 2rem;
	--rb-space-10: 2.5rem;
	--rb-space-12: 3rem;
	--rb-space-16: 4rem;
	--rb-space-20: 5rem;

	/* Typography Scale */
	--rb-font-family-base: "Cairo", "Tajawal", "Noto Kufi Arabic", "Segoe UI", Tahoma, Arial, sans-serif;
	--rb-font-size-100: 0.75rem;
	--rb-font-size-200: 0.875rem;
	--rb-font-size-300: 1rem;
	--rb-font-size-400: 1.125rem;
	--rb-font-size-500: 1.25rem;
	--rb-font-size-600: 1.5rem;
	--rb-font-size-700: 1.875rem;
	--rb-font-size-800: 2.25rem;
	--rb-line-height-tight: 1.25;
	--rb-line-height-base: 1.7;

	/* Container Widths */
	--rb-container-sm: 540px;
	--rb-container-md: 720px;
	--rb-container-lg: 960px;
	--rb-container-xl: 1140px;
	--rb-container-2xl: 1320px;

	/* Compatibility Aliases */
	--rb-color-primary: var(--rb-brand-primary);
	--rb-color-secondary: var(--rb-brand-secondary);
	--rb-color-accent: var(--rb-brand-accent);
	--rb-hover-primary: var(--rb-brand-primary-hover);
	--rb-hover-secondary: var(--rb-brand-secondary-hover);
	--rb-hover-accent: var(--rb-brand-accent-hover);
	--rb-bg-base: var(--rb-surface-base);
	--rb-bg-light: var(--rb-surface-soft);
	--rb-bg-dark: var(--rb-surface-contrast);
	--rb-text-dark: var(--rb-text-strong);
	--rb-border-color: var(--rb-border-default);
	--rb-border-hover: var(--rb-border-strong);
}