/* SafeGuard - CSS Variables */
/* Mobile-First Design System for Android Antivirus */

:root {
  /* Primary Colors */
  --color-primary: #0A2540;
  --color-primary-light: #1A3A5C;
  --color-primary-dark: #061829;
  
  /* Accent Colors - Android Green inspired */
  --color-accent: #00D4AA;
  --color-accent-light: #33DDBB;
  --color-accent-dark: #00B892;
  --color-accent-glow: rgba(0, 212, 170, 0.2);
  
  /* Android brand color */
  --color-android: #3DDC84;
  --color-android-dark: #2BC866;
  
  /* Background Colors */
  --color-bg: #F6F9FC;
  --color-bg-white: #FFFFFF;
  --color-bg-alt: #EDF2F7;
  --color-bg-dark: #0A2540;
  
  /* Text Colors */
  --color-text: #425466;
  --color-text-dark: #1A202C;
  --color-text-light: #718096;
  --color-text-muted: #A0AEC0;
  --color-text-white: #FFFFFF;
  --color-text-on-dark: #E2E8F0;
  
  /* Border Colors */
  --color-border: #E2E8F0;
  --color-border-light: #EDF2F7;
  --color-border-dark: #CBD5E0;
  
  /* Status Colors */
  --color-success: #00D4AA;
  --color-warning: #F6AD55;
  --color-error: #FC8181;
  --color-info: #63B3ED;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-card: 0 2px 8px rgba(10, 37, 64, 0.08);
  --shadow-card-hover: 0 8px 24px rgba(10, 37, 64, 0.12);
  
  /* Typography */
  --font-heading: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Font Sizes - Mobile First (smaller base) */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 2.75rem;
  --text-6xl: 3.25rem;
  
  /* Font Weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  
  /* Line Heights */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  
  /* Letter Spacing */
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  
  /* Spacing Scale */
  --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;
  --space-24: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  
  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
  
  /* Animation Durations */
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 700ms;
  
  /* Animation Easings */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  
  /* Gradient Colors */
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-android) 100%);
  --gradient-hero: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  --gradient-glow: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  
  /* Container - Mobile First */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  
  /* Header - Mobile First */
  --header-height: 64px;
}

/* Tablet+ */
@media (min-width: 768px) {
  :root {
    --header-height: 72px;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  :root {
    --header-height: 80px;
  }
}