/* ==========================================================================
   NEO-BRUTALIST DESIGN SYSTEM
   Bold, chunky, fun — with dark mode
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS CUSTOM PROPERTIES
   -------------------------------------------------------------------------- */
:root {
  /* Light Mode Colors */
  --bg: #f8f8f8;
  --bg-alt: #eeeeee;
  --bg-card: #ffffff;
  --text: #000000;
  --text-muted: #666666;
  --accent-orange: #ff6b00;
  --accent-blue: #3d5afe;
  --accent-yellow: #ffe135;
  --accent-pink: #ff4081;
  --accent-green: #00e676;
  
  /* Borders & Shadows */
  --border-width: 4px;
  --border-color: var(--text);
  --shadow-offset: 6px;
  --shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--text);
  --shadow-hover: 3px 3px 0 var(--text);
  
  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  
  /* Radius */
  --radius-sm: 4px;
}

/* Dark Mode */
[data-theme="dark"] {
  --bg: #1a1a1a;
  --bg-alt: #252525;
  --bg-card: #2a2a2a;
  --text: #ffffff;
  --text-muted: #999999;
  --shadow: var(--shadow-offset) var(--shadow-offset) 0 rgba(255, 255, 255, 0.3);
  --shadow-hover: 3px 3px 0 rgba(255, 255, 255, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* --------------------------------------------------------------------------
   BACKGROUND TEXTURE
   -------------------------------------------------------------------------- */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  background-image: radial-gradient(var(--text-muted) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.3;
}

[data-theme="dark"] body::before {
  opacity: 0.15;
}

/* --------------------------------------------------------------------------
   THEME TOGGLE
   -------------------------------------------------------------------------- */
.theme-toggle {
  position: fixed;
  top: var(--space-sm);
  right: var(--space-sm);
  z-index: 1000;
  width: 50px;
  height: 50px;
  background: var(--bg-card);
  border: var(--border-width) solid var(--text);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.theme-toggle:hover {
  transform: translate(3px, 3px);
  box-shadow: var(--shadow-hover);
}

.toggle-icon {
  transition: transform 0.3s ease;
}

.theme-toggle:hover .toggle-icon {
  transform: rotate(20deg);
}

/* --------------------------------------------------------------------------
   HERO SECTION
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  padding-bottom: var(--space-lg);
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.hero-badge {
  display: inline-block;
  background: var(--accent-orange);
  color: #000;
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  border: var(--border-width) solid var(--text);
  box-shadow: var(--shadow);
  margin-bottom: var(--space-md);
  transform: rotate(-2deg);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.hero-badge:hover {
  transform: rotate(-2deg) translate(2px, 2px);
  box-shadow: var(--shadow-hover);
}

.hero-title {
  font-size: clamp(4rem, 15vw, 12rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 0.9;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  max-width: 600px;
  margin-bottom: var(--space-sm);
  line-height: 1.8;
}

.highlight-orange {
  background: var(--accent-yellow);
  color: #000;
  padding: 0 0.25em;
  border: 2px solid var(--text);
  transition: background 0.15s ease;
}

.highlight-orange:hover {
  background: var(--accent-orange);
}

.hero-note {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 500px;
}

/* Floating Labels - Interactive */
.floating-label {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: var(--space-xs) var(--space-sm);
  background: var(--accent-blue);
  color: #fff;
  border: var(--border-width) solid var(--text);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.floating-label:hover {
  transform: translate(3px, 3px);
  box-shadow: var(--shadow-hover);
}

.label-left {
  bottom: 15%;
  left: 10%;
  transform: rotate(-8deg);
}

.label-left:hover {
  transform: rotate(-8deg) translate(3px, 3px);
}

.label-right {
  bottom: 20%;
  right: 10%;
  transform: rotate(5deg);
}

.label-right:hover {
  transform: rotate(5deg) translate(3px, 3px);
}

.arrow {
  font-size: 1.2rem;
}

/* --------------------------------------------------------------------------
   FILTER SECTION
   -------------------------------------------------------------------------- */
.filter-section {
  padding: var(--space-md);
  border-top: var(--border-width) solid var(--text);
  border-bottom: var(--border-width) solid var(--text);
  background: var(--bg-alt);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  max-width: 800px;
  margin: 0 auto;
}

.filter-btn {
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: var(--border-width) solid var(--text);
  background: var(--bg-card);
  color: var(--text);
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.filter-btn:hover {
  transform: translate(2px, 2px);
  box-shadow: var(--shadow-hover);
}

.filter-btn.active {
  background: var(--text);
  color: var(--bg);
  transform: translate(3px, 3px);
  box-shadow: 3px 3px 0 var(--accent-orange);
}

/* --------------------------------------------------------------------------
   ARTICLES GRID
   -------------------------------------------------------------------------- */
.articles-section {
  padding: var(--space-lg) var(--space-md);
  max-width: 1400px;
  margin: 0 auto;
}

.empty-state {
  text-align: center;
  font-size: 1.1rem;
  color: var(--text-muted);
  padding: var(--space-xl) 0;
  font-style: italic;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-md);
}

/* --------------------------------------------------------------------------
   ARTICLE CARD
   -------------------------------------------------------------------------- */
.article-card {
  position: relative;
  background: var(--bg-card);
  border: var(--border-width) solid var(--text);
  box-shadow: var(--shadow);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
}

.article-card:hover {
  transform: translate(3px, 3px);
  box-shadow: var(--shadow-hover);
}

.article-card.hidden {
  display: none;
}

/* Card Tag */
.card-tag {
  position: absolute;
  top: -12px;
  left: var(--space-sm);
  padding: 4px 12px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  border: 3px solid var(--text);
  transform: rotate(-3deg);
}

.tag-orange { background: var(--accent-orange); color: #000; }
.tag-blue { background: var(--accent-blue); color: #fff; }
.tag-pink { background: var(--accent-pink); color: #fff; }
.tag-yellow { background: var(--accent-yellow); color: #000; }

/* Card Content */
.card-title {
  font-size: 1.25rem;
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.2;
  margin-top: var(--space-xs);
}

.card-excerpt {
  font-size: 0.95rem;
  color: var(--text-muted);
  flex-grow: 1;
}

.card-meta {
  display: flex;
  gap: var(--space-sm);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-action {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.85rem;
  padding: var(--space-xs) 0;
  border-top: 2px dashed var(--text);
  margin-top: var(--space-xs);
  transition: gap 0.15s ease, color 0.15s ease;
}

.article-card:hover .card-action {
  gap: 1rem;
  color: var(--accent-orange);
}

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */
.footer {
  border-top: var(--border-width) solid var(--text);
  background: var(--text);
  color: var(--bg);
  padding: var(--space-lg) var(--space-md);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-logo {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.footer-brand p {
  font-size: 0.85rem;
  opacity: 0.7;
}

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

.footer-text {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.05em;
  font-family: monospace;
}

/* --------------------------------------------------------------------------
   ARTICLE PAGE STYLES
   -------------------------------------------------------------------------- */
.article-page {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md);
}

.back-link {
  display: inline-block;
  font-weight: 900;
  margin-bottom: var(--space-md);
  padding: 4px 12px;
  border: 2px solid var(--text);
  background: var(--bg-card);
  box-shadow: 4px 4px 0 var(--text);
  transition: all 0.15s ease;
}

.back-link:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--text);
}

.full-article {
  background: var(--bg-card);
  border: var(--border-width) solid var(--text);
  box-shadow: var(--shadow);
  padding: var(--space-lg);
}

.article-header {
  margin-bottom: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.article-tag {
  align-self: flex-start;
  padding: 4px 12px;
  font-size: 0.8rem;
  font-weight: 700;
  border: 2px solid var(--text);
  transform: rotate(-1deg);
}

.article-title {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.article-meta {
  font-family: monospace;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.article-content {
  font-size: 1.1rem;
  line-height: 1.8;
}

.article-content p {
  margin-bottom: 1.5rem;
}

.article-content h3 {
  font-size: 1.5rem;
  font-weight: 900;
  text-transform: uppercase;
  margin: 2.5rem 0 1rem;
  padding-left: 1rem;
  border-left: 6px solid var(--accent-orange);
}

.intro-text {
  font-size: 1.25rem;
  font-weight: 500;
  border-bottom: 2px solid var(--text);
  padding-bottom: 2rem;
  margin-bottom: 2rem;
}

.highlight {
  background: var(--accent-yellow);
  color: #000;
  padding: 0 4px;
}

.pull-quote {
  font-size: 1.5rem;
  font-weight: 900;
  text-align: center;
  padding: 2rem;
  background: var(--bg);
  border: 2px dashed var(--text);
  margin: 3rem 0;
  transform: rotate(1deg);
}

.callout-box {
  background: var(--text);
  color: var(--bg);
  padding: 2rem;
  margin: 3rem 0;
  box-shadow: 8px 8px 0 var(--accent-blue);
  font-weight: 700;
  font-family: monospace;
}

.brutalist-list {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
  display: grid;
  gap: 1.5rem;
}

.brutalist-list li {
  padding: 1.5rem;
  border: 2px solid var(--text);
  background: var(--bg);
  position: relative;
}

.brutalist-list li::before {
  content: '✦';
  position: absolute;
  top: -10px;
  left: 10px;
  background: var(--bg);
  padding: 0 5px;
  color: var(--accent-pink);
  font-weight: 900;
}

.closing {
  font-size: 2rem;
  font-weight: 900;
  text-align: right;
  margin-top: 3rem;
  color: var(--accent-orange);
}

.next-article {
  margin-top: var(--space-lg);
  text-align: center;
  font-weight: 900;
}

.coming-soon {
  margin-top: 1rem;
  font-style: italic;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  :root {
    --space-md: 1.5rem;
    --space-lg: 3rem;
    --space-xl: 4rem;
  }

  .hero {
    min-height: auto;
    /* Increase top padding to clear the fixed theme toggle button */
    padding: 6rem var(--space-sm) var(--space-xl);
  }

  .hero-title {
    font-size: clamp(3rem, 15vw, 6rem);
  }

  .hero-subtitle {
     font-size: 1rem;
     padding: 0 var(--space-sm);
  }

  .hero-badge {
    transform: rotate(0deg);
    margin-bottom: var(--space-sm);
  }

  /* Reposition or hide floating labels on mobile to avoid overlap */
  .floating-label {
    position: relative;
    display: inline-flex;
    margin: var(--space-sm);
    transform: none !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    top: auto !important;
  }

  .full-article {
    padding: var(--space-md) var(--space-sm);
  }

  .article-title {
    font-size: 2.5rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 18vw; /* Massive on small screens but fits width */
    line-height: 0.8;
  }
  
  .filter-btn {
    padding: 8px 12px;
    font-size: 0.75rem;
  }
}