/* ========================================
   Sean Moran - Personal Website
   Dark theme with cyberpunk elements
   ======================================== */

/* CSS Variables */
:root {
  --color-bg: #0a0a0c;
  --color-bg-secondary: #0f0f12;
  --color-bg-elevated: #141418;
  --color-text: #e0ddd8;
  --color-text-secondary: #9a9690;
  --color-text-muted: #5a5854;
  --color-accent: #ff3c3c;
  --color-accent-dim: #cc2e2e;
  --color-accent-glow: rgba(255, 60, 60, 0.4);
  --color-cyan: #00ffff;
  --color-cyan-dim: #00cccc;
  --color-cyan-glow: rgba(0, 255, 255, 0.4);
  --color-border: #1e1e24;
  --color-border-light: #2a2a32;
  --font-main: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Monaco, "Consolas", monospace;
  --max-width: 720px;
  --max-width-wide: 900px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
}

/* Font imports */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Base */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Scanline overlay - subtle CRT effect */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.04) 2px,
    rgba(0, 0, 0, 0.04) 4px
  );
  z-index: 1000;
}

/* Layout - responsive width */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

@media (min-width: 1024px) {
  .container {
    max-width: var(--max-width-wide);
  }
}

@media (min-width: 1400px) {
  .container {
    max-width: 1000px;
  }
}

/* Header */
.site-header {
  padding: var(--spacing-lg) 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.site-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0.6;
}

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

.site-title {
  font-family: var(--font-main);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: all 0.2s ease;
  position: relative;
}

.site-title:hover {
  color: var(--color-accent);
  text-shadow: 0 0 10px var(--color-accent-glow), 0 0 20px var(--color-accent-glow);
}

.site-nav {
  display: flex;
  gap: var(--spacing-lg);
}

.site-nav a {
  font-family: var(--font-main);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all 0.2s ease;
  position: relative;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-cyan);
  text-shadow: 0 0 8px var(--color-cyan-glow);
}

.site-nav a::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-cyan);
  transition: width 0.2s ease;
  box-shadow: 0 0 10px var(--color-cyan), 0 0 20px var(--color-cyan-glow);
}

.site-nav a:hover::after,
.site-nav a.active::after {
  width: 100%;
}

/* Main Content */
main {
  min-height: 60vh;
  padding-bottom: var(--spacing-xxl);
}

/* Homepage Intro */
.intro {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
}

.intro p {
  font-family: var(--font-main);
  color: var(--color-text);
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

/* Social Links */
.social-links {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.social-links a {
  font-family: var(--font-mono);
  color: var(--color-cyan);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--color-cyan-dim);
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.social-links a::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
  transition: left 0.3s ease;
}

.social-links a:hover::before {
  left: 100%;
}

.social-links a:hover {
  color: var(--color-bg);
  background: var(--color-cyan);
  border-color: var(--color-cyan);
  box-shadow: 0 0 15px var(--color-cyan-glow), 0 0 30px var(--color-cyan-glow);
}

/* Section Headers */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

.section-header h2 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-text-muted);
}

.section-header a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  text-decoration: none;
  transition: all 0.2s ease;
}

.section-header a:hover {
  color: var(--color-text);
  text-shadow: 0 0 8px var(--color-accent-glow);
}

/* Article List */
.article-list {
  list-style: none;
}

.article-item {
  border-bottom: 1px solid var(--color-border);
  transition: all 0.2s ease;
  position: relative;
  padding-left: var(--spacing-sm);
}

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

.article-item a {
  text-decoration: none;
  display: block;
  padding: var(--spacing-md) 0;
  transition: all 0.2s ease;
}

.article-item a:hover {
  background: linear-gradient(90deg, var(--color-bg-elevated), transparent 80%);
}

.article-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 100%;
  background: var(--color-accent);
  transition: width 0.2s ease;
  box-shadow: 0 0 10px var(--color-accent-glow);
}

.article-item:hover::before {
  width: 3px;
}

.article-item h3 {
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
  transition: all 0.2s ease;
  display: inline-block;
}

.article-item a:hover h3 {
  color: var(--color-accent);
  text-shadow: 0 0 10px var(--color-accent-glow);
}

.article-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

/* Page Header */
.page-header {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.page-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 80px;
  height: 2px;
  background: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent-glow), 0 0 20px var(--color-accent-glow);
}

.page-header h1 {
  font-family: var(--font-main);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: inline-block;
  transition: all 0.2s ease;
}

.page-header h1:hover {
  text-shadow: 0 0 10px var(--color-accent-glow), 0 0 20px var(--color-accent-glow);
  cursor: default;
}

/* About Page */
.about-header {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.about-image {
  width: 300px;
  height: 300px;
  border-radius: 4px;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--color-border-light);
  filter: grayscale(20%) contrast(1.05);
  transition: all 0.3s ease;
  margin-top: 0;
  vertical-align: top;
}

.about-image:hover {
  filter: grayscale(0%) contrast(1.1);
  border-color: var(--color-cyan);
  box-shadow: 0 0 20px var(--color-cyan-glow);
}

.about-intro {
  margin-top: 0;
  padding-top: 0;
}

.about-intro p {
  font-family: var(--font-main);
  font-size: 1.125rem;
  color: var(--color-text);
  line-height: 1.7;
  margin-top: calc( -1 * (1.7 - 4.25) / 2 * 1.125rem );  /* Align image top with text top */
  margin-bottom: 0;
  padding-top: 0;
}

/* Post Header */
.post-header {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.post-header h1 {
  font-family: var(--font-main);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
  display: inline-block;
  transition: all 0.2s ease;
}

.post-header h1:hover {
  text-shadow: 0 0 10px var(--color-accent-glow), 0 0 20px var(--color-accent-glow);
  cursor: default;
}

.post-meta {
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}

/* Post Content */
.post-content {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.post-content p {
  margin-bottom: var(--spacing-md);
}

.post-content h2 {
  font-family: var(--font-main);
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.01em;
  color: var(--color-text);
  padding-left: var(--spacing-sm);
  border-left: 3px solid var(--color-accent);
  box-shadow: -5px 0 15px -5px var(--color-accent-glow);
}

.post-content h3 {
  font-family: var(--font-main);
  font-size: 1.0625rem;
  font-weight: 600;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.post-content a {
  color: var(--color-cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all 0.2s ease;
}

.post-content a:hover {
  border-bottom-color: var(--color-cyan);
  text-shadow: 0 0 8px var(--color-cyan-glow);
}

.post-content .image-container a,
.post-content .image-container a:hover {
  border-bottom: none;
}

.post-content ul,
.post-content ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.post-content li {
  margin-bottom: var(--spacing-xs);
}

.post-content li::marker {
  color: var(--color-accent);
}

.post-content blockquote {
  border-left: 3px solid var(--color-cyan-dim);
  padding-left: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  font-style: italic;
  color: var(--color-text-muted);
  box-shadow: -5px 0 15px -5px var(--color-cyan-glow);
}

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: 2px;
  margin: var(--spacing-lg) 0;
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
}

.post-content img:hover {
  border-color: var(--color-cyan-dim);
  box-shadow: 0 0 20px var(--color-cyan-glow);
}

.post-content figure {
  margin: var(--spacing-lg) 0;
}

.post-content figcaption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--spacing-xs);
}

.post-content strong {
  font-weight: 600;
  color: var(--color-text);
}

.post-content em {
  font-style: italic;
}

.post-content hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border-light), transparent);
  margin: var(--spacing-xl) 0;
}

/* Image with Caption */
.image-container {
  display: block;
  text-align: center;
  margin: var(--spacing-lg) 0;
  max-width: 100%;
}

.image-container a {
  display: inline-block;
  line-height: 0;
}

.image-container img {
  display: block;
  max-width: 100%;
  border-radius: 2px;
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
  margin: 0 auto; /* Centers the image if it's narrower than the container; removes all vertical margins */
}

.image-container img:hover {
  border-color: var(--color-cyan-dim);
  box-shadow: 0 0 20px var(--color-cyan-glow);
}

.image-container .caption,
.image-container figcaption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
  line-height: 1.5;
}

/* Back Link */
.back-link {
  font-family: var(--font-mono);
  display: inline-block;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.8125rem;
  transition: all 0.2s ease;
  padding: 0.25rem 0.5rem;
  border: 1px solid transparent;
}

.back-link:hover {
  color: var(--color-cyan);
  border-color: var(--color-cyan-dim);
  text-shadow: 0 0 8px var(--color-cyan-glow);
}

.back-link::before {
  content: "< ";
}

/* Footer */
.site-footer {
  padding: var(--spacing-lg) 0;
  border-top: 1px solid var(--color-border);
  margin-top: var(--spacing-xxl);
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-cyan-dim), transparent);
  opacity: 0.5;
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.footer-text {
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

.footer-links {
  display: flex;
  gap: var(--spacing-md);
}

.footer-links a {
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.75rem;
  transition: all 0.2s ease;
}

.footer-links a:hover {
  color: var(--color-cyan);
  text-shadow: 0 0 8px var(--color-cyan-glow);
}

/* Responsive */
@media (max-width: 640px) {
  html {
    font-size: 15px;
  }

  .site-header .container {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .site-nav {
    gap: var(--spacing-md);
  }

  .about-header {
    flex-direction: column;
  }

  .about-image {
    width: 200px;
    height: 200px;
  }

  .post-header h1 {
    font-size: 1.375rem;
  }

  .site-footer .container {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Selection */
::selection {
  background: var(--color-accent);
  color: var(--color-bg);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border-light);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent-dim);
}

/* ========================================
   Glitch & Cyberpunk Effects
   ======================================== */

/* Strong glitch animation */
@keyframes glitch {
  0% {
    transform: translate(0);
    text-shadow: -2px 0 var(--color-cyan), 2px 0 var(--color-accent);
  }
  20% {
    transform: translate(-3px, 2px);
    text-shadow: 2px 0 var(--color-cyan), -2px 0 var(--color-accent);
  }
  40% {
    transform: translate(3px, -2px);
    text-shadow: -2px 0 var(--color-accent), 2px 0 var(--color-cyan);
  }
  60% {
    transform: translate(-2px, 1px);
    text-shadow: 2px 0 var(--color-accent), -2px 0 var(--color-cyan);
  }
  80% {
    transform: translate(2px, -1px);
    text-shadow: -2px 0 var(--color-cyan), 2px 0 var(--color-accent);
  }
  100% {
    transform: translate(0);
    text-shadow: none;
  }
}

/* Medium glitch */
@keyframes glitch-medium {
  0% {
    transform: translate(0);
    text-shadow: -1px 0 var(--color-cyan), 1px 0 var(--color-accent);
  }
  25% {
    transform: translate(-2px, 1px);
    text-shadow: 1px 0 var(--color-cyan), -1px 0 var(--color-accent);
  }
  50% {
    transform: translate(2px, -1px);
    text-shadow: -1px 0 var(--color-accent), 1px 0 var(--color-cyan);
  }
  75% {
    transform: translate(-1px, 0);
    text-shadow: 1px 0 var(--color-accent), -1px 0 var(--color-cyan);
  }
  100% {
    transform: translate(0);
    text-shadow: none;
  }
}

/* Flicker animation */
@keyframes flicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
  52% { opacity: 1; }
  54% { opacity: 0.9; }
  56% { opacity: 1; }
}

/* Apply glitch effects */
.site-title:hover {
  animation: glitch 0.4s ease;
}

.site-nav a:hover {
  animation: glitch-medium 0.25s ease;
}

.article-item a:hover h3 {
  animation: glitch-medium 0.3s ease;
}

.page-header h1:hover {
  animation: glitch 0.4s ease;
}

.post-header h1:hover {
  animation: glitch 0.4s ease;
}

/* Neon flicker on footer links */
.footer-links a:hover {
  animation: flicker 0.5s ease;
}

/* Terminal cursor blink */
@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.section-header h2::after {
  content: "_";
  color: var(--color-accent);
  animation: blink 1s infinite;
  margin-left: 2px;
}