/* ============================================
   MICHEL DE SOUZA - PORTFOLIO STYLES
   Enhanced with accessibility, dark/light mode, animations
   ============================================ */

/* Color Variables */
:root {
  /* Dark Mode (Default) */
  --navy: #0f1b2d;
  --blue: #1e3a5f;
  --accent: #2e86c1;
  --teal: #1abc9c;
  --muted: #8a9bb0;
  --white: #ffffff;
  --card: #162233;
  --text-primary: #ffffff;
  --text-secondary: #cbd5e0;
  --border-color: rgba(46, 134, 193, 0.15);
  --bg-primary: var(--navy);
  --bg-secondary: var(--card);
  --mono: 'JetBrains Mono', monospace;
  
  /* Light Mode */
  --light-navy: #f8f9fa;
  --light-blue: #f0f4f8;
  --light-accent: #1e5a96;
  --light-teal: #0d9488;
  --light-muted: #64748b;
  --light-card: #ffffff;
  --light-text-primary: #1e293b;
  --light-text-secondary: #475569;
  --light-border: rgba(30, 90, 150, 0.1);
  
  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s ease;
}

/* Light Mode Theme */
html[data-theme="light"] {
  --navy: var(--light-navy);
  --blue: var(--light-blue);
  --accent: var(--light-accent);
  --teal: var(--light-teal);
  --muted: var(--light-muted);
  --card: var(--light-card);
  --text-primary: var(--light-text-primary);
  --text-secondary: var(--light-text-secondary);
  --border-color: var(--light-border);
  --bg-primary: var(--light-navy);
  --bg-secondary: var(--light-card);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: light dark;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  transition: var(--transition);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.exp-card.highlight {
  border-color: var(--teal);
  background: rgba(26, 188, 156, 0.03);
}

.exp-card.highlight::before {
  width: 5px;
}

.exp-bullets li strong {
  color: var(--teal);
  font-weight: 600;
}

.section-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
}

.stat-number {
  font-family: 'Syne', sans-serif;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.project-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.project-tech span {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--teal);
  background: rgba(26, 188, 156, 0.1);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
}

.skill-category h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  color: var(--accent);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.skill-tags span {
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.2rem;
}

.contact-links {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
}

.contact-item {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 2px solid var(--teal);
  padding-bottom: 0.2rem;
  transition: var(--transition);
}

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

footer {
  padding: 4rem 2rem;
  text-align: center;
  border-top: 1px solid var(--border-color);
  margin-top: 4rem;
}

footer p {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
}

/* Skip to Content Link (Accessibility) */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent);
  color: white;
  padding: 8px;
  text-decoration: none;
  z-index: 100;
  border-radius: 0 0 4px 0;
}

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

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: rgba(15, 27, 45, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

html[data-theme="light"] nav {
  background: rgba(248, 249, 250, 0.92);
  border-bottom: 1px solid var(--light-border);
}

.nav-name {
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  color: var(--teal);
  letter-spacing: 0.05em;
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
  padding: 0.5rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--teal);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--teal);
}

.nav-links a:hover::after {
  width: 100%;
}

.theme-toggle {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 1.2rem;
  transition: var(--transition-fast);
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  color: var(--teal);
  transform: rotate(20deg);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem 2rem 4rem;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 3rem;
}

.hero-photo {
  flex-shrink: 0;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 3px solid var(--teal);
  box-shadow: 0 0 0 8px rgba(26, 188, 156, 0.12);
  opacity: 0;
  animation: fadeUp 0.6s 0.15s forwards;
  transition: var(--transition);
}

.hero-photo:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 32px rgba(26, 188, 156, 0.2);
}

.hero-text {
  flex: 1;
}

.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.1s forwards;
}

.hero h1 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  opacity: 0;
  animation: fadeUp 0.6s 0.2s forwards;
}

.hero h1 span {
  color: var(--accent);
  background: linear-gradient(135deg, var(--accent), var(--teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: 1.1rem;
  color: var(--muted);
  margin-top: 1.2rem;
  max-width: 540px;
  opacity: 0;
  animation: fadeUp 0.6s 0.35s forwards;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.6s 0.5s forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transition: left 0.3s ease;
  z-index: -1;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: #2574a9;
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(46, 134, 193, 0.3);
}

.btn-outline {
  border: 1.5px solid var(--accent);
  color: var(--accent);
  background: transparent;
}

.btn-outline:hover {
  background: rgba(46, 134, 193, 0.1);
  transform: translateY(-2px);
}

.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  opacity: 0;
  animation: fadeUp 0.6s 0.9s forwards;
}

.scroll-hint span {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.scroll-arrow {
  width: 1px;
  height: 32px;
  background: var(--muted);
  animation: scrollPulse 1.5s ease-in-out infinite;
}

/* Sections */
section {
  padding: 5rem 2rem;
  max-width: 900px;
  margin: 0 auto;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

section:nth-of-type(odd) {
  animation-delay: 0.1s;
}

section:nth-of-type(even) {
  animation-delay: 0.2s;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 2.5rem;
  color: var(--text-primary);
}

.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-color), transparent);
  max-width: 900px;
  margin: 0 auto;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.about-text {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  transition: var(--transition);
  cursor: pointer;
}

.stat-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(46, 134, 193, 0.15);
}

.stat-number {
  font-family: 'Syne', sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--teal);
  background: linear-gradient(135deg, var(--teal), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-desc {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.5rem;
}

/* Experience Section */
.exp-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.exp-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.exp-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--teal), var(--accent));
}

.exp-card:hover {
  border-color: var(--accent);
  transform: translateX(4px);
  box-shadow: 0 8px 24px rgba(46, 134, 193, 0.1);
}

.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
}

.exp-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.exp-period {
  font-size: 0.78rem;
  color: var(--teal);
  font-weight: 600;
  background: rgba(26, 188, 156, 0.1);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  white-space: nowrap;
  border: 1px solid rgba(26, 188, 156, 0.2);
}

.exp-company {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.exp-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.exp-bullets li {
  font-size: 0.92rem;
  color: var(--text-secondary);
  padding-left: 1.5rem;
  position: relative;
  line-height: 1.6;
}

.exp-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
  transition: var(--transition-fast);
}

.exp-bullets li:hover::before {
  transform: scale(1.5);
}

/* Experience Filter */
.exp-filter-container {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.filter-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.category-filter {
  padding: 0.6rem 1rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1.5px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.category-filter:hover {
  border-color: var(--accent);
  background: rgba(46, 134, 193, 0.05);
}

.category-filter:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(46, 134, 193, 0.1);
}

.category-filter option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

/* Experience Category Sections */
.exp-category {
  margin-bottom: 2.5rem;
  animation: fadeInUp 0.4s ease forwards;
}

.exp-category.hidden {
  display: none;
}

.exp-category-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid rgba(46, 134, 193, 0.2);
  letter-spacing: 0.02em;
}

.exp-category .exp-card {
  margin-bottom: 1.25rem;
}

.exp-category .exp-card:last-child {
  margin-bottom: 0;
}

/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.project-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.project-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(26, 188, 156, 0.1), transparent);
  transition: left 0.5s ease;
  pointer-events: none;
}

.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(46, 134, 193, 0.15);
}

.project-card:hover::after {
  left: 100%;
}

.project-name {
  font-family: 'Syne', sans-serif;
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  color: var(--teal);
}

.project-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tech-tag {
  font-size: 0.78rem;
  background: rgba(46, 134, 193, 0.12);
  color: #a8c8e8;
  padding: 0.4rem 0.9rem;
  border-radius: 20px;
  border: 1px solid rgba(46, 134, 193, 0.25);
  transition: var(--transition-fast);
}

.tech-tag:hover {
  background: rgba(46, 134, 193, 0.2);
  border-color: var(--accent);
  transform: scale(1.05);
}

.project-status {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #f39c12;
  background: rgba(243, 156, 18, 0.1);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  border: 1px solid rgba(243, 156, 18, 0.3);
  white-space: nowrap;
  display: inline-block;
}

.dogma-principles {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-bottom: 1.25rem;
}

.dogma-item {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding-left: 1.2rem;
  border-left: 3px solid;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.dogma-item:nth-child(1) {
  border-left-color: #f39c12;
}

.dogma-item:nth-child(2) {
  border-left-color: var(--teal);
}

.dogma-item:nth-child(3) {
  border-left-color: var(--accent);
}

.dogma-item:nth-child(4) {
  border-left-color: #9b59b6;
}

.dogma-item strong {
  color: var(--text-primary);
}

/* Education Section */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}

.edu-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  transition: var(--transition);
}

.edu-card:hover {
  border-color: var(--teal);
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(26, 188, 156, 0.1);
}

.edu-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  background: rgba(26, 188, 156, 0.1);
  padding: 0.3rem 0.7rem;
  border-radius: 4px;
  margin-bottom: 0.75rem;
  border: 1px solid rgba(26, 188, 156, 0.2);
}

.edu-degree {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.edu-school {
  font-size: 0.85rem;
  color: var(--muted);
}

/* Skills Section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  transition: var(--transition);
}

.skill-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(46, 134, 193, 0.1);
}

.skill-cat {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.skill-tag {
  font-size: 0.8rem;
  background: rgba(46, 134, 193, 0.1);
  color: #a8c8e8;
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  border: 1px solid rgba(46, 134, 193, 0.2);
  transition: var(--transition-fast);
}

.skill-tag:hover {
  background: rgba(46, 134, 193, 0.2);
  transform: scale(1.05);
}

/* Contact Section */
.contact-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 3rem 2.5rem;
  text-align: center;
  transition: var(--transition);
}

.contact-card:hover {
  border-color: var(--accent);
  box-shadow: 0 16px 40px rgba(46, 134, 193, 0.15);
}

.contact-card p {
  color: var(--muted);
  max-width: 480px;
  margin: 0.75rem auto 2rem;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(46, 134, 193, 0.1);
  border: 1px solid rgba(46, 134, 193, 0.25);
  padding: 0.7rem 1.4rem;
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.9rem;
  text-decoration: none;
  transition: var(--transition);
}

.contact-link:hover {
  background: rgba(46, 134, 193, 0.2);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(46, 134, 193, 0.2);
}

.contact-icon {
  font-size: 1.1rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--muted);
  font-size: 0.8rem;
  background: var(--bg-secondary);
  transition: var(--transition);
}

/* Animations */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollPulse {
  0%, 100% {
    opacity: 0.3;
  }
  50% {
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  nav {
    padding: 0.75rem 1rem;
  }

  .nav-links {
    gap: 0.75rem;
  }

  .nav-links a {
    font-size: 0.75rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
  }

  .hero-photo {
    width: 130px;
    height: 130px;
  }

  .hero-actions {
    justify-content: center;
  }

  section {
    padding: 3rem 1.5rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .edu-grid {
    grid-template-columns: 1fr;
  }

  .exp-filter-container {
    flex-direction: column;
    align-items: flex-start;
  }

  .category-filter {
    width: 100%;
  }
}

@media (max-width: 480px) {
  nav {
    padding: 0.5rem 1rem;
  }

  .nav-links {
    gap: 0.5rem;
  }

  .hero {
    padding: 5rem 1rem 3rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-photo {
    width: 100px;
    height: 100px;
  }

  .btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.8rem;
  }

  section {
    padding: 2rem 1rem;
  }

  .section-title {
    font-size: 1.25rem;
  }

  .contact-links {
    flex-direction: column;
  }

  .contact-item {
    width: 100%;
    justify-content: center;
  }
}

/* Print Styles */
@media print {
  nav,
  .scroll-hint,
  .theme-toggle {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  section {
    page-break-inside: avoid;
  }
}

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

/* Focus Visible for Keyboard Navigation */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}