/**
 * Hephaestus Website Styles
 * 
 * A modern, accessible CSS system preserving the original brand identity
 * with improved organization, performance, and maintainability.
 * 
 * Table of Contents:
 * 1. CSS Variables / Design Tokens
 * 2. Reset & Base Styles
 * 3. Typography
 * 4. Layout & Container
 * 5. Navigation
 * 6. Hero Section
 * 7. Sections & Cards
 * 8. Projects
 * 9. Blog
 * 10. Join Us / Membership
 * 11. About Section
 * 12. Footer
 * 13. Buttons & Links
 * 14. Utilities
 * 15. Accessibility
 * 16. Responsive / Media Queries
 * 17. Animations & Transitions
 */

/* ==========================================================================
   1. CSS Variables / Design Tokens
   ========================================================================== */

:root {
  /* Brand Colors */
  --color-primary: #4B0082;
  --color-primary-light: #6A0DAD;
  --color-primary-dark: #3A006A;
  
  /* Neutral Colors */
  --color-background: #fcfcfc;
  --color-surface: #ffffff;
  --color-surface-elevated: rgba(255, 255, 255, 0.98);
  
  /* Text Colors */
  --color-text: #4B0082;
  --color-text-light: #6A0DAD;
  --color-text-muted: rgba(75, 0, 130, 0.7);
  --color-text-inverse: #ffffff;
  
  /* Accent Colors */
  --color-accent-1: #FF6B6B;
  --color-accent-2: #4ECDC4;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  --gradient-overlay: linear-gradient(45deg, rgba(106, 13, 173, 0.8), rgba(75, 0, 130, 0.8));
  
  /* Shadows */
  --shadow-sm: 0 2px 10px rgba(75, 0, 130, 0.1);
  --shadow-md: 0 4px 20px rgba(75, 0, 130, 0.1);
  --shadow-lg: 0 10px 30px rgba(75, 0, 130, 0.15);
  --shadow-xl: 0 15px 40px rgba(75, 0, 130, 0.2);
  --glow: 0 0 10px rgba(106, 13, 173, 0.3);
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* Typography */
  --font-primary: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: 'Quicksand', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3rem;
  
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 25px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Z-index */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 500;
  --z-nav: 1000;
  --z-modal: 1100;
  
  /* Layout */
  --nav-height: 70px;
  --container-max: 1200px;
  --container-narrow: 900px;
}

/* ==========================================================================
   2. Reset & Base Styles
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  height: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  background-image: 
    linear-gradient(rgba(106, 13, 173, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(106, 13, 173, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  min-height: 100%;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 0% 0%, rgba(106, 13, 173, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 100% 100%, rgba(75, 0, 130, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

img {
  font-style: italic;
  background-repeat: no-repeat;
  background-size: cover;
  shape-margin: 0.75rem;
  vertical-align: middle;
}

ul,
ol {
  list-style: none;
}

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

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

/* ==========================================================================
   3. Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: var(--line-height-tight);
  color: var(--color-primary);
}

h1 {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
}

h2 {
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
}

h3 {
  font-size: clamp(var(--text-xl), 3vw, var(--text-2xl));
}

p {
  margin-bottom: var(--space-md);
}

/* ==========================================================================
   4. Layout & Container
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-block: var(--space-4xl);
  position: relative;
}

.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(106, 13, 173, 0.1) 50%, 
    transparent 100%
  );
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-xl);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  position: relative;
  display: inline-block;
  left: 50%;
  transform: translateX(-50%);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    var(--color-primary-light) 50%,
    transparent 100%
  );
  transform: scaleX(0.7);
  opacity: 0.5;
}

.section-intro {
  text-align: center;
  max-width: 800px;
  margin-inline: auto;
  margin-bottom: var(--space-2xl);
  font-size: var(--text-lg);
  color: var(--color-text);
  line-height: var(--line-height-relaxed);
}

.section-cta {
  text-align: center;
  margin-top: var(--space-2xl);
}

/* ==========================================================================
   5. Navigation
   ========================================================================== */

.nav-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  padding-inline: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-background);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-nav);
}

.logo {
  display: flex;
  align-items: center;
  height: 35px;
  transition: transform var(--transition-base);
}

.logo:hover {
  transform: scale(1.05);
}

.logo-img {
  height: 100%;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.nav-links a {
  font-size: var(--text-lg);
  color: var(--color-text);
  position: relative;
  transition: color var(--transition-base);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary-light);
  transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--color-primary-light);
}

.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 25px;
  z-index: calc(var(--z-nav) + 2);
}

.hamburger span {
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  transition: all var(--transition-base);
}

/* ==========================================================================
   6. Hero Section
   ========================================================================== */

.hero {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: 
    radial-gradient(circle at 10% 20%, rgba(106, 13, 173, 0.08) 0%, transparent 25%),
    radial-gradient(circle at 90% 80%, rgba(75, 0, 130, 0.08) 0%, transparent 25%),
    radial-gradient(circle at 50% 50%, rgba(106, 13, 173, 0.04) 0%, transparent 50%),
    var(--color-background);
  margin-top: calc(-1 * var(--nav-height));
  padding-top: var(--nav-height);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(106, 13, 173, 0.2) 50%, 
    transparent 100%
  );
}

/* Animated Neural Network Background */
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.hero-bg__particles {
  position: absolute;
  inset: 0;
}

/* Floating particles */
.hero-bg__particles::before,
.hero-bg__particles::after {
  content: '';
  position: absolute;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(106, 13, 173, 0.25) 0%, transparent 70%);
  animation: floatParticle 20s ease-in-out infinite;
}

.hero-bg__particles::before {
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.hero-bg__particles::after {
  bottom: 20%;
  right: 15%;
  width: 300px;
  height: 300px;
  animation-delay: -10s;
  animation-duration: 25s;
}

/* Neural network grid lines */
.hero-bg__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(106, 13, 173, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(106, 13, 173, 0.12) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridPulse 4s ease-in-out infinite;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
}

/* Animated connection lines */
.hero-bg__connections {
  position: absolute;
  inset: 0;
}

.hero-bg__connections::before {
  content: '';
  position: absolute;
  top: 20%;
  left: 5%;
  width: 250px;
  height: 250px;
  border: 2px solid rgba(106, 13, 173, 0.2);
  border-radius: 50%;
  animation: pulseRing 6s ease-in-out infinite;
}

.hero-bg__connections::after {
  content: '';
  position: absolute;
  bottom: 15%;
  right: 10%;
  width: 180px;
  height: 180px;
  border: 2px solid rgba(75, 0, 130, 0.2);
  border-radius: 50%;
  animation: pulseRing 6s ease-in-out infinite;
  animation-delay: -3s;
}

/* Floating dots / nodes */
.node {
  position: absolute;
  width: 10px;
  height: 10px;
  background: rgba(106, 13, 173, 0.6);
  border-radius: 50%;
  box-shadow: 0 0 25px rgba(106, 13, 173, 0.5), 0 0 50px rgba(106, 13, 173, 0.2);
  animation: nodeFloat 15s ease-in-out infinite;
}

.node--small {
  width: 6px;
  height: 6px;
  background: rgba(106, 13, 173, 0.5);
  box-shadow: 0 0 15px rgba(106, 13, 173, 0.4);
}

.node--large {
  width: 14px;
  height: 14px;
  background: rgba(106, 13, 173, 0.5);
  box-shadow: 0 0 35px rgba(106, 13, 173, 0.6), 0 0 60px rgba(106, 13, 173, 0.3);
}

.node:nth-child(1) { top: 12%; left: 18%; animation-delay: 0s; }
.node:nth-child(2) { top: 22%; left: 72%; animation-delay: -2s; animation-duration: 18s; }
.node:nth-child(3) { top: 58%; left: 12%; animation-delay: -4s; animation-duration: 20s; }
.node:nth-child(4) { top: 72%; left: 82%; animation-delay: -6s; animation-duration: 16s; }
.node:nth-child(5) { top: 38%; left: 48%; animation-delay: -8s; animation-duration: 22s; }
.node:nth-child(6) { top: 82%; left: 38%; animation-delay: -10s; animation-duration: 19s; }
.node:nth-child(7) { top: 8%; left: 88%; animation-delay: -12s; animation-duration: 17s; }
.node:nth-child(8) { top: 48%; left: 6%; animation-delay: -14s; animation-duration: 21s; }
.node:nth-child(9) { top: 30%; left: 32%; animation-delay: -1s; animation-duration: 19s; }
.node:nth-child(10) { top: 65%; left: 55%; animation-delay: -5s; animation-duration: 17s; }
.node:nth-child(11) { top: 18%; left: 55%; animation-delay: -7s; animation-duration: 23s; }
.node:nth-child(12) { top: 75%; left: 22%; animation-delay: -9s; animation-duration: 16s; }
.node:nth-child(13) { top: 45%; left: 78%; animation-delay: -11s; animation-duration: 20s; }
.node:nth-child(14) { top: 88%; left: 65%; animation-delay: -13s; animation-duration: 18s; }
.node:nth-child(15) { top: 5%; left: 42%; animation-delay: -3s; animation-duration: 21s; }
.node:nth-child(16) { top: 55%; left: 92%; animation-delay: -15s; animation-duration: 19s; }

/* Keyframe animations */
@keyframes floatParticle {
  0%, 100% {
    transform: translate(0, 0) scale(1);
    opacity: 0.5;
  }
  25% {
    transform: translate(30px, -40px) scale(1.1);
    opacity: 0.7;
  }
  50% {
    transform: translate(-20px, 20px) scale(0.9);
    opacity: 0.4;
  }
  75% {
    transform: translate(40px, 30px) scale(1.05);
    opacity: 0.6;
  }
}

@keyframes gridPulse {
  0%, 100% {
    opacity: 0.5;
  }
  50% {
    opacity: 0.9;
  }
}

@keyframes pulseRing {
  0%, 100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.3);
    opacity: 0.15;
  }
}

@keyframes nodeFloat {
  0%, 100% {
    transform: translate(0, 0);
    opacity: 0.7;
  }
  25% {
    transform: translate(25px, -35px);
    opacity: 1;
  }
  50% {
    transform: translate(-20px, 20px);
    opacity: 0.5;
  }
  75% {
    transform: translate(30px, 25px);
    opacity: 0.9;
  }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  .hero-bg__particles::before,
  .hero-bg__particles::after,
  .hero-bg__grid,
  .hero-bg__connections::before,
  .hero-bg__connections::after,
  .node {
    animation: none;
  }
}

.hero-content {
  text-align: center;
  z-index: 1;
  max-width: 1200px;
  padding: var(--space-xl);
}

.glitch-text {
  font-size: clamp(4.5rem, 12vw, 8rem);
  font-family: var(--font-primary);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 900;
  text-shadow: 
    0 0 40px rgba(106, 13, 173, 0.3),
    0 0 80px rgba(106, 13, 173, 0.15);
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, var(--color-primary) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  animation: gradientShift 4s ease infinite, glitchPulse 3s ease-in-out infinite;
}

.glitch-text::before,
.glitch-text::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.glitch-text::before {
  animation: glitch1 2.5s infinite;
  clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
  transform: translate(-2px, -2px);
  opacity: 0.8;
}

.glitch-text::after {
  animation: glitch2 2.5s infinite;
  clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
  transform: translate(2px, 2px);
  opacity: 0.8;
}

@keyframes gradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

@keyframes glitchPulse {
  0%, 90%, 100% {
    text-shadow: 
      0 0 40px rgba(106, 13, 173, 0.3),
      0 0 80px rgba(106, 13, 173, 0.15);
  }
  95% {
    text-shadow: 
      0 0 60px rgba(106, 13, 173, 0.6),
      0 0 100px rgba(106, 13, 173, 0.3),
      2px 2px 0 rgba(255, 0, 255, 0.3),
      -2px -2px 0 rgba(0, 255, 255, 0.3);
  }
}

@keyframes glitch1 {
  0%, 90%, 100% {
    transform: translate(0);
  }
  92% {
    transform: translate(-3px, -3px);
  }
  94% {
    transform: translate(2px, 2px);
  }
  96% {
    transform: translate(-2px, 2px);
  }
}

@keyframes glitch2 {
  0%, 90%, 100% {
    transform: translate(0);
  }
  91% {
    transform: translate(3px, 3px);
  }
  93% {
    transform: translate(-2px, -2px);
  }
  95% {
    transform: translate(2px, -2px);
  }
}

.subtitle-container {
  margin: var(--space-lg) 0;
}

.subtitle-text {
  font-family: var(--font-secondary);
  font-size: clamp(1.2rem, 2.5vw, 2rem);
  font-weight: 300;
  letter-spacing: 2px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* ==========================================================================
   7. Sections & Cards
   ========================================================================== */

.project-grid,
.blog-grid {
  display: grid;
  gap: var(--space-xl);
}

.project-grid {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.blog-grid {
  grid-template-columns: repeat(3, 1fr);
}

.blog-grid--archive {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

.project-card,
.blog-card {
  background: var(--color-surface-elevated);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(75, 0, 130, 0.1);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.project-card:hover,
.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.project-card {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
}

.project-card h3 {
  color: var(--color-primary-light);
  margin-bottom: var(--space-sm);
  font-size: var(--text-xl);
}

.project-card p {
  color: var(--color-text);
  line-height: var(--line-height-relaxed);
  font-size: var(--text-sm);
  flex-grow: 1;
}

.project-image {
  height: 200px;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  position: relative;
  overflow: hidden;
  background: rgba(75, 0, 130, 0.05);
}

.project-image img,
.project-img {
  width: 100%;
  height: 100%;
  min-width: 100%;
  min-height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform var(--transition-base);
  display: block;
}

.project-card:hover .project-image img,
.project-card:hover .project-img {
  transform: scale(1.05);
}

.tech-overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient-overlay);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.project-card:hover .tech-overlay {
  opacity: 0.3;
}

/* Blog Cards */
.blog-card {
  text-decoration: none;
  color: inherit;
  display: block;
}

.blog-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.02);
}

.blog-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
  filter: saturate(1.1) contrast(1.05);
}

.blog-card:hover .blog-thumb img {
  transform: scale(1.05);
}

.blog-meta {
  padding: var(--space-lg);
}

.blog-meta h2,
.blog-meta h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.blog-meta .excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  line-height: var(--line-height-relaxed);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-meta time {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ==========================================================================
   8. Projects Page
   ========================================================================== */

.projects-archive {
  padding-top: calc(var(--nav-height) + var(--space-xl));
  min-height: 100vh;
}

.page-header {
  text-align: center;
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.page-header h1 {
  margin-bottom: var(--space-md);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-intro {
  max-width: 700px;
  margin-inline: auto;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

.semester-section {
  padding: var(--space-2xl) 0;
  margin-bottom: var(--space-2xl);
}

.semester-section h2 {
  color: var(--color-primary);
  font-size: var(--text-3xl);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 3px solid var(--color-primary);
  display: inline-block;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2xl);
}

.project-pdf-card {
  background: var(--color-surface-elevated);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(75, 0, 130, 0.1);
  transition: box-shadow var(--transition-base);
}

.project-pdf-card:hover {
  box-shadow: var(--shadow-lg);
}

.project-pdf-card .project-image {
  height: 220px;
  margin-bottom: 0;
  border-radius: 0;
  background: rgba(75, 0, 130, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-pdf-card .project-image img {
  width: 100%;
  height: 100%;
  min-width: 100%;
  min-height: 100%;
  object-fit: cover;
  object-position: center center;
}

.pdf-info {
  padding: var(--space-lg);
}

.pdf-info h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

.view-pdf-btn {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-2xl);
  font-size: var(--text-sm);
  transition: all var(--transition-base);
}

.view-pdf-btn:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   9. Blog
   ========================================================================== */

.blog-archive {
  padding-top: calc(var(--nav-height) + var(--space-xl));
  min-height: 100vh;
}

/* Blog Post Single */
.blog-post {
  padding-top: calc(var(--nav-height) + var(--space-xl));
}

.blog-post__header {
  padding-bottom: var(--space-2xl);
}

.breadcrumb {
  margin-bottom: var(--space-lg);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.breadcrumb li:not(:last-child)::after {
  content: '/';
  margin-left: var(--space-sm);
}

.breadcrumb a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--color-primary-light);
}

.blog-post__header h1 {
  margin-bottom: var(--space-md);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.blog-post__meta {
  margin-bottom: var(--space-xl);
}

.blog-post__meta time {
  font-size: var(--text-base);
  color: var(--color-text-muted);
}

.blog-post__hero-image {
  margin: 0;
}

.blog-post__hero-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.blog-post__content {
  padding: var(--space-2xl) 0;
}

.blog-post__content h2 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.blog-post__content h3 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.blog-post__content p {
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}

.blog-post__content ul,
.blog-post__content ol {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-xl);
}

.blog-post__content li {
  margin-bottom: var(--space-sm);
  line-height: var(--line-height-relaxed);
}

.blog-post__content ul li {
  list-style: disc;
}

.blog-post__content ol li {
  list-style: decimal;
}

.blog-post__content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.blog-post__content a:hover {
  color: var(--color-primary-light);
}

.blog-post__content blockquote {
  border-left: 4px solid var(--color-primary);
  padding-left: var(--space-lg);
  margin: var(--space-xl) 0;
  font-style: italic;
  color: var(--color-text-muted);
}

.blog-post__content code {
  background: rgba(75, 0, 130, 0.08);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: 0.9em;
}

.blog-post__content pre {
  background: rgba(75, 0, 130, 0.08);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: var(--space-lg);
}

.blog-post__content pre code {
  background: none;
  padding: 0;
}

/* Blog figures with captions */
.blog-post__content figure,
.blog-post__content .blog-figure,
.blog-post__content .inline-image {
  margin: var(--space-xl) 0;
}

.blog-post__content figure img,
.blog-post__content .blog-figure img,
.blog-post__content .inline-image img {
  width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.blog-post__content figcaption {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--space-sm);
  font-style: italic;
}

/* Image gallery row - must override default figure styles */
.blog-post__content .image-row {
  display: flex;
  gap: 1rem;
  margin: var(--space-xl) 0;
  align-items: flex-start;
}

.blog-post__content .image-row figure,
.blog-post__content .image-row .inline-image {
  flex: 1;
  min-width: 0;
  margin: 0;
  max-width: none;
}

.blog-post__content .image-row img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.blog-post__content .image-row figcaption {
  font-size: var(--text-xs);
  margin-top: var(--space-xs);
  text-align: center;
}

@media (max-width: 600px) {
  .blog-post__content .image-row {
    flex-direction: column;
  }
}

.blog-post__pdf-download {
  margin-top: var(--space-2xl);
  padding: var(--space-xl);
  background: rgba(75, 0, 130, 0.05);
  border-radius: var(--radius-lg);
  text-align: center;
}

.blog-post__pdf-download a.btn-primary {
  color: #ffffff;
  text-decoration: none;
}

.blog-post__pdf-download a.btn-primary:hover {
  color: #ffffff;
}

.blog-post__footer {
  padding: var(--space-2xl) 0 var(--space-4xl);
  border-top: 1px solid rgba(75, 0, 130, 0.1);
}

.blog-post__share {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.share-buttons {
  display: flex;
  gap: var(--space-sm);
}

.share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(75, 0, 130, 0.1);
  color: var(--color-primary);
  transition: all var(--transition-fast);
}

.share-btn:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  transform: translateY(-2px);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-primary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.back-link:hover {
  color: var(--color-primary-light);
}

/* ==========================================================================
   10. Join Us / Membership
   ========================================================================== */

.join-us {
  background: var(--color-background);
}

.membership-types {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.membership-card {
  flex: 1;
  max-width: 400px;
  min-width: 300px;
  background: var(--color-surface-elevated);
  padding: var(--space-xl);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(75, 0, 130, 0.1);
  text-decoration: none;
  color: var(--color-text);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.membership-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.card-content h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  font-size: var(--text-2xl);
}

.card-content > p {
  margin-bottom: var(--space-md);
  font-weight: 500;
}

.card-content ul {
  margin-bottom: var(--space-xl);
}

.card-content li {
  margin-bottom: var(--space-sm);
  padding-left: var(--space-xl);
  position: relative;
  line-height: var(--line-height-relaxed);
}

.card-content li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-primary-light);
  transition: all var(--transition-base);
}

.card-content li:hover::before {
  transform: translateX(3px);
}

.apply-button {
  display: inline-block;
  background: var(--gradient-primary);
  color: var(--color-text-inverse);
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius-2xl);
  font-weight: 500;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.membership-card:hover .apply-button {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   11. About Section
   ========================================================================== */

.about {
  background: var(--color-background);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.about-item {
  background: var(--color-surface-elevated);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(75, 0, 130, 0.1);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.about-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.about-item h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  position: relative;
  display: inline-block;
}

.about-item h3::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 50px;
  height: 2px;
  background: var(--color-primary-light);
  transition: width var(--transition-base);
}

.about-item:hover h3::after {
  width: 100%;
}

.about-item p {
  line-height: var(--line-height-relaxed);
}

/* ==========================================================================
   12. Footer
   ========================================================================== */

.site-footer {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-4xl) 0 var(--space-xl);
  margin-top: var(--space-4xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  margin: 0 auto var(--space-md);
  filter: brightness(0) invert(1);
}

.footer-brand p {
  opacity: 0.8;
  line-height: var(--line-height-relaxed);
}

.footer-nav h4,
.footer-social h4 {
  font-size: var(--text-base);
  margin-bottom: var(--space-md);
  font-weight: 600;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-nav a {
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}

.footer-nav a:hover {
  opacity: 1;
}

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

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  transition: all var(--transition-fast);
}

.social-links a:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: var(--text-sm);
  opacity: 0.8;
}

.footer-bottom a {
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity var(--transition-fast);
}

.footer-bottom a:hover {
  opacity: 0.7;
}

/* ==========================================================================
   13. Buttons & Links
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius-2xl);
  font-weight: 500;
  font-size: var(--text-base);
  text-decoration: none;
  transition: all var(--transition-base);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn-primary:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  transform: translateY(-2px);
}

.view-project-btn {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius-2xl);
  font-size: var(--text-sm);
  transition: all var(--transition-base);
  margin-top: auto;
}

.view-project-btn:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   14. Utilities
   ========================================================================== */

.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;
}

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

/* ==========================================================================
   15. Accessibility
   ========================================================================== */

.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-md) var(--space-xl);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  z-index: calc(var(--z-nav) + 10);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* Focus styles */
:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

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

/* ==========================================================================
   16. Responsive / Media Queries
   ========================================================================== */

@media (max-width: 900px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
  
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  :root {
    --space-4xl: 4rem;
  }
  
  .hamburger {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-2xl);
    transition: all var(--transition-base);
    opacity: 0;
    visibility: hidden;
    z-index: calc(var(--z-nav) + 1);
  }
  
  .nav-links.active {
    right: 0;
    opacity: 1;
    visibility: visible;
  }
  
  .nav-links a {
    font-size: var(--text-xl);
    font-weight: 500;
  }
  
  .hamburger.active span:first-child {
    transform: rotate(45deg) translate(8px, 7px);
  }
  
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active span:last-child {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .blog-grid {
    grid-template-columns: 1fr;
  }
  
  .membership-types {
    flex-direction: column;
    align-items: center;
  }
  
  .membership-card {
    max-width: 100%;
    min-width: 0;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-brand {
    max-width: none;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .social-links {
    justify-content: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  /* Disable hover effects on mobile */
  .project-card:hover,
  .blog-card:hover,
  .membership-card:hover,
  .about-item:hover {
    transform: none;
  }
}

@media (max-width: 480px) {
  .container {
    padding-inline: var(--space-md);
  }
  
  .glitch-text {
    font-size: 3.5rem;
    letter-spacing: 0.1em;
  }
  
  .glitch-text::before,
  .glitch-text::after {
    display: none;
  }
  
  .section-title {
    font-size: var(--text-2xl);
  }
}

/* ==========================================================================
   17. Animations & Transitions
   ========================================================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

/* Hardware acceleration for smooth animations */
.project-card,
.blog-card,
.membership-card,
.about-item {
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
}

/* Print styles */
@media print {
  .nav-container,
  .site-footer,
  .skip-link,
  .hamburger {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
  
  a {
    text-decoration: underline;
  }
}