/**
 * Cybersecurity Portfolio - Base Styles
 * 
 * Author: DogSoulDev (DsD)
 * Copyright © 2025 DogSoulDev. All rights reserved.
 * License: MIT with AI Training Restriction - See LICENSE file
 * Contact: dogsouldev@protonmail.com
 * Repository: https://github.com/DogSoulDev
 * 
 * WARNING: Protected against AI training and unauthorized use.
 * Scraping must preserve attribution to DogSoulDev (DsD).
 */

:root {
  /* Colors */
  --bg-main: #fefefe;
  --bg-panel: #f5f5f5;
  --manga-black: #1a1a1a;
  --manga-red: #e74c3c;
  --manga-red-dark: #c0392b;
  --manga-blue: #3498db;
  --manga-green: #2ecc71;
  --manga-yellow: #f39c12;
  --manga-gray: #bdc3c7;
  --text-main: #1a1a1a;
  --text-muted: #7f8c8d;
  --font-manga: 'Roboto Mono', monospace;
  
  /* Manga page colors */
  --manga-paper: #fffef5;
  --manga-ink: #000000;
  
  /* Responsive breakpoints (for CSS calculations)
     Updated for 2024-2025 devices including foldables */
  --breakpoint-foldable-cover: 280px;
  --breakpoint-mobile-tiny: 280px;
  --breakpoint-mobile-small: 360px;
  --breakpoint-mobile: 393px;
  --breakpoint-mobile-large: 430px;
  --breakpoint-foldable-closed: 540px;
  --breakpoint-tablet-small: 768px;
  --breakpoint-tablet: 884px;
  --breakpoint-desktop: 1024px;
  --breakpoint-desktop-large: 1440px;
  
  /* Spacing scale */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
}

body {
  background: 
    linear-gradient(90deg, transparent 49.5%, rgba(0,0,0,0.03) 49.5%, rgba(0,0,0,0.03) 50.5%, transparent 50.5%),
    linear-gradient(0deg, transparent 49.5%, rgba(0,0,0,0.03) 49.5%, rgba(0,0,0,0.03) 50.5%, transparent 50.5%),
    var(--manga-paper);
  background-size: 50px 50px;
  color: var(--text-main);
  font-family: var(--font-manga);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Textura de papel manga en el body */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(0,0,0,0.015) 1px, transparent 1px),
    radial-gradient(circle at 80% 50%, rgba(0,0,0,0.015) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: -1;
  opacity: 0.5;
}

/* Custom Scrollbar - Manga Style */
::-webkit-scrollbar {
  width: 12px;
  background: var(--bg-panel);
}

::-webkit-scrollbar-track {
  background: var(--bg-panel);
  border-left: 2px solid var(--manga-black);
}

::-webkit-scrollbar-thumb {
  background: var(--manga-black);
  border: 2px solid var(--bg-panel);
  transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--manga-red);
}

/* Firefox Scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--manga-black) var(--bg-panel);
}

/* ===================================
   UTILITY CLASSES (DRY Principle)
   =================================== */

/* Flexbox utilities */
.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.flex-column {
  display: flex;
  flex-direction: column;
}

.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Manga border utility */
.manga-border {
  border: 4px solid var(--manga-black);
  box-shadow: 8px 8px 0 var(--manga-black);
}

.manga-border-thin {
  border: 2px solid var(--manga-black);
  box-shadow: 4px 4px 0 var(--manga-black);
}

/* Spacing utilities */
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.p-1 { padding: 1rem; }
.p-2 { padding: 2rem; }

/* Text utilities */
.text-center { text-align: center; }
.text-uppercase { text-transform: uppercase; }
.font-bold { font-weight: bold; }