:root{--green-700: #2e8b36;--green-600: #34a13c;--green-500: #3cb043;--green-400: #5cc262;--green-100: #d7efd9;--green-50: #eef8ef;--steel-950: #0a1013;--steel-900: #16181d;--steel-800: #1f2229;--steel-700: #2c2e35;--steel-600: #46555d;--steel-500: #5f6b66;--steel-300: #9fb0b7;--steel-200: #dde4df;--steel-100: #eef2f0;--steel-50: #f5f8f5;--white: #ffffff;--teal-500: #0fb5a6;--zalo-blue: #0068ff;--color-brand: var(--green-500);--color-brand-hover: var(--green-700);--color-brand-tint: var(--green-50);--bg-page: var(--white);--bg-tint: var(--steel-50);--bg-dark: var(--steel-900);--bg-darkest: var(--steel-950);--surface-card: var(--white);--text-heading: var(--steel-900);--text-body: #1c1e24;--text-muted: var(--steel-500);--text-on-dark: var(--white);--text-muted-on-dark: var(--steel-300);--text-brand: var(--green-700);--border-default: var(--steel-200);--border-strong: var(--steel-700);--border-focus: var(--green-500);--link: var(--green-700);--link-hover: 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