/*!
 * Retro 8-bit Terminal Theme
 * Custom theme for Alex Rosenfeld's Developer Portfolio
 * Inspired by classic terminal interfaces and 8-bit aesthetics
 */

/* ============================================
   ROOT VARIABLES - Retro Color Palette
   ============================================ */
:root {
  /* Terminal Colors */
  --terminal-bg: #0a0a0a;
  --terminal-text: #ffffff;
  --terminal-text-dim: #cccccc;
  --terminal-glow: rgba(255, 255, 255, 0.3);

  /* Accent Colors - Cyberpunk/Retro */
  --accent-cyan: #00ffff;
  --accent-magenta: #ff00ff;
  --accent-yellow: #ffff00;
  --accent-amber: #ffb000;
  --accent-green: #00ff00;

  /* Grayscale */
  --white: #ffffff;
  --gray-light: #cccccc;
  --gray: #999999;
  --gray-dark: #333333;
  --black: #000000;

  /* Fonts */
  --font-pixel: 'Press Start 2P', cursive;
  --font-terminal: 'VT323', monospace;
  --font-mono: 'IBM Plex Mono', monospace;
}

/* ============================================
   BASE STYLES
   ============================================ */
* {
  box-sizing: border-box;
}

body {
  padding: 60px 0 0 0;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.8;
  color: var(--terminal-text);
  background-color: var(--terminal-bg);
  background-image:
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.03),
      rgba(255, 255, 255, 0.03) 1px,
      transparent 1px,
      transparent 2px
    );
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}

/* CRT Screen Effect */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.15),
    rgba(0, 0, 0, 0.15) 1px,
    transparent 1px,
    transparent 3px
  );
  pointer-events: none;
  z-index: 9999;
}

/* Subtle CRT flicker animation */
@keyframes flicker {
  0% { opacity: 0.97; }
  50% { opacity: 1; }
  100% { opacity: 0.97; }
}

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.02);
  pointer-events: none;
  z-index: 9998;
  animation: flicker 3s infinite;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-pixel);
  font-weight: 400;
  color: var(--terminal-text);
  text-transform: uppercase;
  letter-spacing: 2px;
  text-shadow: 0 0 10px var(--terminal-glow);
  margin-bottom: 1.5rem;
}

h1 {
  font-size: 2rem;
  line-height: 1.6;
}

h2 {
  font-size: 1.5rem;
  line-height: 1.6;
  border-bottom: 2px solid var(--terminal-text);
  padding-bottom: 0.5rem;
  margin-top: 2rem;
}

h3 {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--accent-cyan);
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

h4, h5, h6 {
  font-size: 0.875rem;
  line-height: 1.8;
}

p {
  margin-bottom: 1rem;
  font-size: 16px;
}

/* Links */
a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
}

a:hover {
  color: var(--accent-magenta);
  text-shadow: 0 0 8px rgba(255, 0, 255, 0.8);
}

a:focus {
  outline: 2px dashed var(--terminal-text);
  outline-offset: 4px;
}

/* Code blocks */
code {
  font-family: var(--font-mono);
  background-color: var(--gray-dark);
  color: var(--accent-amber);
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid var(--terminal-text-dim);
}

pre {
  background-color: var(--gray-dark);
  border: 2px solid var(--terminal-text);
  border-radius: 4px;
  padding: 1rem;
  overflow-x: auto;
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}

pre code {
  background: none;
  border: none;
  padding: 0;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn, a.btn {
  font-family: var(--font-pixel);
  font-size: 0.75rem;
  padding: 12px 24px;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 3px solid var(--terminal-text);
  background-color: transparent;
  color: var(--terminal-text);
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  box-shadow: 4px 4px 0 var(--terminal-text-dim);
}

.btn:hover, a.btn:hover {
  background-color: var(--terminal-text);
  color: var(--terminal-bg);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--terminal-text-dim);
}

.btn:active, a.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--terminal-text-dim);
}

.btn-light {
  border-color: var(--white);
  color: var(--white);
  box-shadow: 4px 4px 0 var(--gray);
}

.btn-light:hover {
  background-color: var(--white);
  color: var(--terminal-bg);
}

.btn-cta-primary, .btn-cta-secondary {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 4px 4px 0 var(--accent-magenta);
}

.btn-cta-primary:hover, .btn-cta-secondary:hover {
  background-color: var(--accent-cyan);
  color: var(--terminal-bg);
  box-shadow: 6px 6px 0 var(--accent-magenta);
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  background-color: var(--terminal-bg) !important;
  border-bottom: 3px solid var(--terminal-text);
  padding: 1rem 0;
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.1);
}

.navbar-brand {
  font-family: var(--font-pixel);
  font-size: 1rem;
  color: var(--terminal-text) !important;
  text-shadow: 0 0 10px var(--terminal-glow);
  letter-spacing: 2px;
}

.navbar-brand:hover {
  color: var(--accent-cyan) !important;
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.8);
}

.nav-link {
  font-family: var(--font-terminal);
  font-size: 1.25rem;
  color: var(--terminal-text) !important;
  padding: 0.5rem 1rem !important;
  transition: all 0.3s ease;
}

.nav-link:hover {
  color: var(--accent-cyan) !important;
  text-shadow: 0 0 8px rgba(0, 255, 255, 0.8);
}

.navbar-toggler {
  border: 2px solid var(--terminal-text);
}

.navbar-toggler-icon {
  filter: brightness(0) invert(1);
}

/* ============================================
   HEADER / HERO SECTION
   ============================================ */
.header {
  background-color: var(--black);
  border: 3px solid var(--terminal-text);
  padding: 3rem 2rem;
  margin: 2rem 0;
  box-shadow: 0 0 30px rgba(255, 255, 255, 0.15);
  position: relative;
}

.header::before {
  content: '> SYSTEM.BOOT...';
  position: absolute;
  top: -1.5rem;
  left: 1rem;
  background-color: var(--terminal-bg);
  padding: 0 1rem;
  font-family: var(--font-terminal);
  font-size: 1rem;
  color: var(--terminal-text-dim);
}

.profile-image {
  border: 4px solid var(--terminal-text);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
  image-rendering: pixelated;
  filter: contrast(1.1);
}

.profile-content .name {
  font-family: var(--font-pixel);
  font-size: 2rem;
  color: var(--terminal-text);
  text-shadow: 0 0 15px var(--terminal-glow);
  margin-bottom: 0.5rem;
}

.profile-content .desc {
  font-family: var(--font-terminal);
  font-size: 1.5rem;
  color: var(--accent-cyan);
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.social li a {
  color: var(--terminal-text);
  font-size: 1.5rem;
  transition: all 0.3s ease;
}

.social li a:hover {
  color: var(--accent-magenta);
  text-shadow: 0 0 10px rgba(255, 0, 255, 0.8);
  transform: scale(1.2);
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
  margin-bottom: 3rem;
}

.section-inner {
  background-color: rgba(0, 0, 0, 0.7);
  border: 3px solid var(--terminal-text-dim);
  border-radius: 0;
  padding: 2rem;
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.1);
  position: relative;
}

.section-inner::before {
  content: '╔═══════════════════════════════════════════╗';
  position: absolute;
  top: -1rem;
  left: 0;
  right: 0;
  font-family: var(--font-mono);
  font-size: 0.5rem;
  color: var(--terminal-text-dim);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
}

.heading {
  position: relative;
  padding-left: 2rem;
}

.heading::before {
  content: '>';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
  font-family: var(--font-pixel);
}

/* ============================================
   EXPERIENCE / CONTENT ITEMS
   ============================================ */
.item {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--gray-dark);
}

.item:last-child {
  border-bottom: none;
}

.item .title {
  font-family: var(--font-terminal);
  font-size: 1.25rem;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

.item .place {
  color: var(--terminal-text);
}

.item .place a {
  color: var(--terminal-text);
  border-bottom: 2px dotted var(--terminal-text-dim);
}

.item .place a:hover {
  color: var(--accent-magenta);
  border-bottom-color: var(--accent-magenta);
}

.item .year {
  color: var(--gray);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.item ul {
  list-style: none;
  padding-left: 0;
}

.item ul li {
  padding-left: 1.5rem;
  position: relative;
  margin-bottom: 0.5rem;
}

.item ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
}

/* ============================================
   BADGES & TAGS
   ============================================ */
.badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 8px;
  border: 1px solid var(--accent-amber);
  background-color: transparent;
  color: var(--accent-amber);
  border-radius: 0;
}

.badge-theme {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background-color: var(--terminal-bg);
  border-top: 3px solid var(--terminal-text);
  padding: 2rem 0;
  margin-top: 4rem;
  text-align: center;
}

.footer .copyright {
  font-family: var(--font-terminal);
  font-size: 1rem;
  color: var(--terminal-text-dim);
}

/* ============================================
   IMAGES
   ============================================ */
img {
  max-width: 100%;
  height: auto;
  image-rendering: -webkit-optimize-contrast;
}

.img-thumbnail {
  border: 3px solid var(--terminal-text);
  background-color: var(--black);
  padding: 0.25rem;
}

/* ============================================
   UTILITIES
   ============================================ */
.rounded-circle {
  border-radius: 50% !important;
}

.shadow-sm {
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1) !important;
}

.text-center {
  text-align: center;
}

.divider {
  border: 0;
  height: 2px;
  background: linear-gradient(
    to right,
    transparent,
    var(--terminal-text),
    transparent
  );
  margin: 2rem 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  h3 {
    font-size: 0.875rem;
  }

  .btn, a.btn {
    font-size: 0.625rem;
    padding: 10px 20px;
  }

  .profile-content .name {
    font-size: 1.5rem;
  }

  .profile-content .desc {
    font-size: 1.25rem;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes glow {
  0%, 100% { text-shadow: 0 0 10px var(--terminal-glow); }
  50% { text-shadow: 0 0 20px var(--terminal-glow), 0 0 30px var(--terminal-glow); }
}

.glow-text {
  animation: glow 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.cursor-blink::after {
  content: '_';
  animation: blink 1s step-end infinite;
  color: var(--terminal-text);
}