/**
 * LinkCoo.asia - Design System & CSS Variables
 * Phong cách sáng, năng động, thanh lịch và hiện đại
 */

:root {
  /* Color Palette - Bright & Energetic */
  --color-bg-base: #FFFFFF;
  --color-bg-subtle: #F8FAFC;
  --color-bg-surface: #FFFFFF;
  --color-bg-muted: #F1F5F9;
  
  /* Brand Primary & Accents */
  --color-primary: #2563EB;
  --color-primary-hover: #1D4ED8;
  --color-primary-light: #EFF6FF;
  --color-primary-rgb: 37, 99, 235;
  
  --color-accent-blue: #0284C7;
  --color-accent-orange: #F97316;
  --color-accent-emerald: #10B981;
  --color-accent-purple: #7C3AED;
  --color-accent-rose: #E11D48;

  /* Typography Colors */
  --color-text-main: #0F172A;
  --color-text-muted: #475569;
  --color-text-light: #64748B;
  --color-text-subtle: #94A3B8;

  /* Borders & Dividers */
  --color-border: #E2E8F0;
  --color-border-hover: #CBD5E1;
  --color-border-focus: #3B82F6;

  /* Typography */
  --font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */
  --font-size-5xl: 3rem;      /* 48px */

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

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-card-hover: 0 20px 30px -10px rgba(37, 99, 235, 0.12), 0 10px 15px -5px rgba(0, 0, 0, 0.04);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-backdrop: blur(12px);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Max Width Container */
  --container-max-width: 1280px;
}