/* ===========================================
   Academic Portfolio - Alireza Keshavarzian
   Modern, Minimal Design
   =========================================== */

/* CSS Variables */
:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --accent-glow: rgba(59, 130, 246, 0.3);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-dark: #0f172a;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.05);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --radius: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent-light);
}

/* ===== NAVIGATION ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.nav-brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO SECTION - MODERN ===== */
.hero-modern {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 20s ease-in-out infinite;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  top: -20%;
  right: -10%;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  bottom: -10%;
  left: -5%;
  animation-delay: -7s;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
  top: 40%;
  left: 30%;
  animation-delay: -14s;
  opacity: 0.3;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(20px, -30px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(30px, 10px) scale(1.02); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-content-modern {
  max-width: 800px;
  padding-top: 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -2px;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.hero-tagline {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.text-gradient {
  background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  background: var(--text-primary);
  color: white;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}

.btn-secondary:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.hero-links-row {
  display: flex;
  gap: 1rem;
}

.icon-link {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-secondary);
  transition: var(--transition);
}

.icon-link:hover {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: white;
  transform: translateY(-2px);
}

.scroll-indicator {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.scroll-indicator span {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}

/* ===== ANIMATIONS ===== */
.animate-fade-in {
  animation: fadeIn 0.8s ease forwards;
  opacity: 0;
}

.animate-slide-up {
  animation: slideUp 0.8s ease forwards;
  opacity: 0;
  transform: translateY(30px);
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.5s; }

@keyframes fadeIn {
  to { opacity: 1; }
}

@keyframes slideUp {
  to { opacity: 1; transform: translateY(0); }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== SECTION STYLES ===== */
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 3rem;
}

/* ===== HIGHLIGHTS SECTION ===== */
.highlights-section {
  padding: 8rem 0;
  background: var(--bg-secondary);
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.highlight-card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
}

.highlight-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.highlight-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
  border-radius: var(--radius);
  color: white;
  margin-bottom: 1.5rem;
}

.highlight-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.highlight-card p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ===== FEATURED SECTION ===== */
.featured-section {
  padding: 8rem 0;
  background: var(--bg-primary);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.featured-item {
  display: block;
  padding: 2rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.featured-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #8b5cf6);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.featured-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.featured-item:hover::before {
  transform: scaleX(1);
}

.featured-year {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.5rem;
  display: block;
}

.featured-item h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.featured-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.featured-venue {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
}

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

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: var(--transition);
}

.link-arrow:hover {
  color: var(--accent);
  gap: 0.75rem;
}

/* ===== ABOUT PREVIEW SECTION ===== */
.about-preview-section {
  padding: 8rem 0;
  background: var(--bg-secondary);
}

.about-preview-content {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4rem;
  align-items: center;
}

.about-preview-image {
  width: 280px;
  height: 280px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 4px solid var(--bg-primary);
  box-shadow: var(--shadow-lg);
}

.about-preview-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-preview-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin-bottom: 1rem;
}

.about-preview-text p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  max-width: 500px;
}

/* ===== FOOTER - MODERN ===== */
.footer-modern {
  padding: 4rem 0;
  background: var(--bg-dark);
  color: white;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer-name {
  font-weight: 600;
  font-size: 1.1rem;
}

.footer-title {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-links a:hover {
  color: white;
}

.footer-copyright {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .highlights-grid,
  .featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 1.5rem 2rem;
    gap: 0;
    border-bottom: 1px solid var(--border);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .nav-links li {
    border-bottom: 1px solid var(--border-light);
  }
  
  .nav-links li:last-child {
    border-bottom: none;
  }
  
  .nav-links a {
    display: block;
    padding: 1rem 0;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .hero-name {
    letter-spacing: -1px;
  }
  
  .hide-mobile {
    display: none;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .btn-primary,
  .btn-secondary {
    justify-content: center;
  }
  
  .scroll-indicator {
    display: none;
  }
  
  .highlights-grid,
  .featured-grid {
    grid-template-columns: 1fr;
  }
  
  .about-preview-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .about-preview-image {
    margin: 0 auto;
    width: 200px;
    height: 200px;
  }
  
  .about-preview-text p {
    max-width: 100%;
  }
  
  .footer-container {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
  }
}

/* ===== EXISTING PAGE STYLES (Publications, Projects, Resume, About) ===== */

/* Page Header */
.page-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  padding: 8rem 2rem 4rem;
  text-align: center;
}

.page-header h1 {
  color: white;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  margin-bottom: 0.75rem;
}

.page-header p {
  color: rgba(255,255,255,0.8);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Main Content */
.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

/* Section */
.section {
  margin-bottom: 4rem;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--border);
}

.section-header h2 {
  margin-bottom: 0;
  font-family: var(--font-display);
}

.section-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
}

/* Cards */
.card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.card-grid {
  display: grid;
  gap: 1.5rem;
}

.card-grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.card-grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Publication Card */
.pub-card {
  position: relative;
}

.pub-card .pub-year {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: var(--bg-secondary);
  color: var(--text-muted);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
}

.pub-card h3 {
  font-size: 1.15rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  padding-right: 4rem;
}

.pub-card h3 a {
  color: inherit;
}

.pub-card h3 a:hover {
  color: var(--accent);
}

.pub-authors {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.pub-venue {
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1rem;
}

.pub-abstract {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.pub-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.pub-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.8rem;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition);
}

.pub-link:hover {
  background: var(--text-primary);
  color: white;
}

/* Project Card */
.project-card h3 {
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.project-card .project-type {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.project-card p {
  font-size: 0.95rem;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.tech-tag {
  padding: 0.25rem 0.6rem;
  background: var(--bg-secondary);
  color: var(--text-muted);
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-weight: 500;
}

/* Resume Styles */
.resume-section {
  margin-bottom: 3rem;
}

.resume-download {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  background: var(--text-primary);
  color: white;
  border-radius: var(--radius);
  font-weight: 600;
  transition: var(--transition);
  margin-bottom: 2rem;
}

.resume-download:hover {
  background: var(--primary-light);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 2rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.5rem;
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  border: 3px solid var(--bg-primary);
  transform: translateX(-5px);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-date {
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.timeline-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.timeline-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.timeline-location {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.timeline-details {
  list-style: none;
}

.timeline-details li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

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

/* Skills Section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.skill-category {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.skill-category h4 {
  color: var(--text-primary);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--accent);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  padding: 0.35rem 0.75rem;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
}

.skill-tag:hover {
  background: var(--text-primary);
  color: white;
}

/* About Page */
.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}

.about-bio {
  font-size: 1.05rem;
  line-height: 1.8;
}

.about-bio p {
  margin-bottom: 1.5rem;
}

.about-bio h2 {
  font-family: var(--font-display);
  margin-top: 2rem;
}

.about-sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.contact-card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.contact-card h4 {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

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

.contact-icon {
  width: 36px;
  height: 36px;
  background: var(--bg-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.contact-item a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  word-break: break-all;
}

.contact-item a:hover {
  color: var(--accent);
}

/* Footer for other pages */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.8);
  padding: 2rem;
  text-align: center;
  margin-top: 4rem;
}

.footer p {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}

.footer a {
  color: var(--accent-light);
}

.footer a:hover {
  color: white;
}

/* Under Review Badge */
.under-review {
  display: inline-block;
  background: #fef3c7;
  color: #92400e;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius);
  font-size: 0.75rem;
  font-weight: 600;
  margin-left: 0.5rem;
}

/* Utilities */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* Responsive About */
@media (max-width: 900px) {
  .about-content {
    grid-template-columns: 1fr;
  }
  
  .about-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .card-grid-2,
  .card-grid-3 {
    grid-template-columns: 1fr;
  }
  
  .page-header {
    padding: 6rem 1.5rem 3rem;
  }
  
  .main-content {
    padding: 3rem 1.5rem;
  }
}

/* Print Styles */
@media print {
  .navbar, .footer, .footer-modern, .hero-links-row, .pub-links, .scroll-indicator {
    display: none;
  }
  
  body {
    background: white;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #ddd;
    break-inside: avoid;
  }
}