/* ==========================================
   KUYAPADS NETWORK - CORE DESIGN SYSTEM
   ==========================================
   This file contains the core design system that maintains
   consistency across the entire platform and prevents
   layout conflicts between different sections.
   ========================================== */

/* ==========================================
   1. CSS RESET & NORMALIZATION
   ========================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--kp-font-primary);
  font-size: var(--kp-font-size-base);
  line-height: var(--kp-line-height-base);
  color: var(--kp-color-text-primary);
  background: var(--kp-color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==========================================
   2. DESIGN TOKENS - CSS CUSTOM PROPERTIES
   ========================================== */
:root {
  /* Brand Colors */
  --kp-color-primary: #1e2a78;
  --kp-color-secondary: #228be6;
  --kp-color-accent: #ffe066;
  --kp-color-success: #51cf66;
  --kp-color-warning: #ffd43b;
  --kp-color-error: #ff6b6b;
  --kp-color-info: #339af0;
  
  /* Background Colors */
  --kp-color-bg-primary: #f7faff;
  --kp-color-bg-secondary: #ffffff;
  --kp-color-bg-tertiary: #f1f3f4;
  --kp-color-bg-overlay: rgba(0, 0, 0, 0.5);
  
  /* Text Colors */
  --kp-color-text-primary: #1e2a78;
  --kp-color-text-secondary: #495057;
  --kp-color-text-tertiary: #6c757d;
  --kp-color-text-inverse: #ffffff;
  
  /* Border Colors */
  --kp-color-border-primary: #e9ecef;
  --kp-color-border-secondary: #dee2e6;
  --kp-color-border-accent: #ffe066;
  
  /* Gradients */
  --kp-gradient-primary: linear-gradient(120deg, #1e2a78 0%, #228be6 60%, #ffe066 100%);
  --kp-gradient-secondary: linear-gradient(120deg, #ffe066 0%, #228be6 60%, #1e2a78 100%);
  --kp-gradient-hero: linear-gradient(135deg, #1e2a78 0%, #228be6 50%, #ffe066 100%);
  
  /* Typography */
  --kp-font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --kp-font-heading: 'Orbitron', 'Inter', sans-serif;
  --kp-font-mono: 'Fira Code', 'Consolas', monospace;
  
  /* Font Sizes */
  --kp-font-size-xs: 0.75rem;    /* 12px */
  --kp-font-size-sm: 0.875rem;   /* 14px */
  --kp-font-size-base: 1rem;     /* 16px */
  --kp-font-size-lg: 1.125rem;   /* 18px */
  --kp-font-size-xl: 1.25rem;    /* 20px */
  --kp-font-size-2xl: 1.5rem;    /* 24px */
  --kp-font-size-3xl: 1.875rem;  /* 30px */
  --kp-font-size-4xl: 2.25rem;   /* 36px */
  --kp-font-size-5xl: 3rem;      /* 48px */
  
  /* Line Heights */
  --kp-line-height-tight: 1.25;
  --kp-line-height-base: 1.5;
  --kp-line-height-relaxed: 1.75;
  
  /* Spacing */
  --kp-spacing-xs: 0.25rem;      /* 4px */
  --kp-spacing-sm: 0.5rem;       /* 8px */
  --kp-spacing-md: 1rem;         /* 16px */
  --kp-spacing-lg: 1.5rem;       /* 24px */
  --kp-spacing-xl: 2rem;         /* 32px */
  --kp-spacing-2xl: 3rem;        /* 48px */
  --kp-spacing-3xl: 4rem;        /* 64px */
  
  /* Border Radius */
  --kp-radius-sm: 0.375rem;      /* 6px */
  --kp-radius-base: 0.5rem;      /* 8px */
  --kp-radius-md: 0.75rem;       /* 12px */
  --kp-radius-lg: 1rem;          /* 16px */
  --kp-radius-xl: 1.5rem;        /* 24px */
  --kp-radius-2xl: 2rem;         /* 32px */
  --kp-radius-full: 9999px;
  
  /* Shadows */
  --kp-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --kp-shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --kp-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --kp-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --kp-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --kp-shadow-glow: 0 0 32px 8px rgba(255, 224, 102, 0.6), 0 2px 12px rgba(34, 139, 230, 0.2);
  
  /* Transitions */
  --kp-transition-fast: 0.15s ease-out;
  --kp-transition-base: 0.2s ease-out;
  --kp-transition-slow: 0.3s ease-out;
  
  /* Z-index */
  --kp-z-dropdown: 1000;
  --kp-z-sticky: 1020;
  --kp-z-fixed: 1030;
  --kp-z-modal-backdrop: 1040;
  --kp-z-modal: 1050;
  --kp-z-popover: 1060;
  --kp-z-tooltip: 1070;
  --kp-z-toast: 1080;
}

/* Dark mode variables */
@media (prefers-color-scheme: dark) {
  :root {
    --kp-color-bg-primary: #0d1117;
    --kp-color-bg-secondary: #161b22;
    --kp-color-bg-tertiary: #21262d;
    --kp-color-text-primary: #f0f6fc;
    --kp-color-text-secondary: #8b949e;
    --kp-color-text-tertiary: #6e7681;
    --kp-color-border-primary: #30363d;
    --kp-color-border-secondary: #21262d;
  }
}

/* ==========================================
   3. UTILITY CLASSES
   ========================================== */
.kp-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--kp-spacing-md);
}

.kp-container-fluid {
  width: 100%;
  padding: 0 var(--kp-spacing-md);
}

.kp-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.kp-text-center { text-align: center; }
.kp-text-left { text-align: left; }
.kp-text-right { text-align: right; }

.kp-d-flex { display: flex; }
.kp-d-block { display: block; }
.kp-d-inline-block { display: inline-block; }
.kp-d-none { display: none; }

.kp-justify-center { justify-content: center; }
.kp-justify-between { justify-content: space-between; }
.kp-justify-around { justify-content: space-around; }
.kp-justify-start { justify-content: flex-start; }
.kp-justify-end { justify-content: flex-end; }

.kp-align-center { align-items: center; }
.kp-align-start { align-items: flex-start; }
.kp-align-end { align-items: flex-end; }

.kp-flex-col { flex-direction: column; }
.kp-flex-row { flex-direction: row; }

.kp-w-full { width: 100%; }
.kp-h-full { height: 100%; }

/* ==========================================
   4. COMPONENT BASE STYLES
   ========================================== */
.kp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--kp-spacing-sm);
  padding: var(--kp-spacing-sm) var(--kp-spacing-md);
  border: none;
  border-radius: var(--kp-radius-md);
  font-family: var(--kp-font-primary);
  font-size: var(--kp-font-size-base);
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--kp-transition-base);
  user-select: none;
  white-space: nowrap;
}

.kp-btn:focus {
  outline: 2px solid var(--kp-color-primary);
  outline-offset: 2px;
}

.kp-btn-primary {
  background: var(--kp-gradient-primary);
  color: var(--kp-color-text-inverse);
  box-shadow: var(--kp-shadow-base);
}

.kp-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--kp-shadow-lg);
}

.kp-btn-secondary {
  background: var(--kp-gradient-secondary);
  color: var(--kp-color-text-primary);
  box-shadow: var(--kp-shadow-base);
}

.kp-btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--kp-shadow-lg);
}

.kp-card {
  background: var(--kp-color-bg-secondary);
  border: 1px solid var(--kp-color-border-primary);
  border-radius: var(--kp-radius-lg);
  box-shadow: var(--kp-shadow-base);
  overflow: hidden;
}

.kp-card-header {
  padding: var(--kp-spacing-lg);
  border-bottom: 1px solid var(--kp-color-border-primary);
}

.kp-card-body {
  padding: var(--kp-spacing-lg);
}

.kp-card-footer {
  padding: var(--kp-spacing-lg);
  border-top: 1px solid var(--kp-color-border-primary);
  background: var(--kp-color-bg-tertiary);
}

/* ==========================================
   5. RESPONSIVE BREAKPOINTS
   ========================================== */
@media (max-width: 1199.98px) {
  .kp-container {
    max-width: 960px;
  }
}

@media (max-width: 991.98px) {
  .kp-container {
    max-width: 720px;
  }
}

@media (max-width: 767.98px) {
  .kp-container {
    max-width: 540px;
  }
  
  :root {
    --kp-font-size-base: 0.875rem;
    --kp-spacing-md: 0.75rem;
  }
}

@media (max-width: 575.98px) {
  .kp-container {
    max-width: 100%;
  }
  
  :root {
    --kp-font-size-base: 0.8125rem;
    --kp-spacing-md: 0.5rem;
  }
}