/* ===================================
   TyCameron Website - Enhanced Styles
   =================================== */

/* CSS Custom Properties / Design Tokens */
:root {
  /* Colors - Light Theme */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --accent-primary: #2563eb;
  --accent-secondary: #3b82f6;
  --accent-hover: #1d4ed8;
  --accent-light: #dbeafe;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --code-bg: #f1f5f9;
  --code-text: #be185d;
  --gradient-start: var(--bg-secondary);
  --gradient-end: var(--bg-primary);

  /* 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;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', Menlo, Monaco, Consolas, monospace;

  /* Borders */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  /* Layout */
  --container-max: 1200px;
  --nav-height: 72px;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --accent-primary: #3b82f6;
  --accent-secondary: #60a5fa;
  --accent-hover: #2563eb;
  --accent-light: #1e3a5f;
  --border-color: #334155;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
  --code-bg: #334155;
  --code-text: #f472b6;
  --gradient-start: var(--bg-secondary);
  --gradient-end: var(--bg-primary);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition-slow), color var(--transition-slow);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Skip Link for Accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-primary);
  color: white;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  z-index: 9999;
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: var(--space-md);
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-slow), box-shadow var(--transition-base);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.navbar.scrolled {
  box-shadow: var(--shadow-lg);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-md) var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-xl);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-decoration: none;
  letter-spacing: -0.5px;
  transition: opacity var(--transition-fast);
}

.logo:hover {
  opacity: 0.8;
}

.nav-profile-photo {
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  max-width: 40px;
  max-height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--space-xl);
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-base);
  position: relative;
  padding: var(--space-xs) 0;
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--accent-primary);
}

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  position: relative;
  transition: background-color var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform var(--transition-base);
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  bottom: -8px;
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  color: var(--text-secondary);
}

.theme-toggle:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: rotate(15deg);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

.icon-sun,
.icon-moon {
  transition: opacity var(--transition-fast), transform var(--transition-base);
}

[data-theme="light"] .icon-sun {
  display: none;
}

[data-theme="dark"] .icon-moon {
  display: none;
}

/* Hero Section */
.hero {
  padding: calc(var(--nav-height) + var(--space-3xl)) var(--space-xl) var(--space-3xl);
  background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
  position: relative;
  overflow: hidden;
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-content {
  max-width: var(--container-max);
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-intro {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
}

.profile-photo {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
  box-shadow: var(--shadow-lg);
  flex-shrink: 0;
}

.hero-intro .hero-title {
  margin-bottom: 0;
  text-align: left;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-lg);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
}

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

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

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

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

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

/* Hero Decoration */
.hero-decoration {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  margin-top: var(--space-3xl);
  flex-wrap: wrap;
}

.floating-card {
  background-color: var(--bg-card);
  padding: var(--space-lg) var(--space-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-weight: 600;
  color: var(--text-primary);
  animation: float 3s ease-in-out infinite;
  border: 1px solid var(--border-color);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.floating-card:nth-child(2) {
  animation-delay: 1s;
}

.floating-card:nth-child(3) {
  animation-delay: 2s;
}

.floating-card .icon {
  color: var(--accent-primary);
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Sections */
.section {
  padding: var(--space-3xl) 0;
}

.section-alt {
  background-color: var(--bg-secondary);
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--space-2xl);
  text-align: center;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.section-header .section-title {
  margin-bottom: 0;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border: 2px solid var(--accent);
  border-radius: var(--radius-lg);
  color: var(--accent);
  background: transparent;
  font-weight: 500;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all var(--transition-fast);
}

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

.btn-outline svg {
  flex-shrink: 0;
}

/* Markdown Content */
.markdown-content {
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
  color: var(--text-primary);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  font-weight: 600;
  line-height: 1.3;
}

.markdown-content h3 {
  font-size: 1.5rem;
}

.markdown-content p {
  margin-bottom: var(--space-lg);
}

.markdown-content ul,
.markdown-content ol {
  margin-left: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.markdown-content li {
  margin-bottom: var(--space-sm);
}

.markdown-content a {
  color: var(--accent-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base);
}

.markdown-content a:hover {
  border-bottom-color: var(--accent-primary);
}

.markdown-content code {
  background-color: var(--code-bg);
  color: var(--code-text);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  font-size: 0.875em;
  font-family: var(--font-mono);
}

.markdown-content pre {
  background-color: var(--code-bg);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  margin-bottom: var(--space-lg);
  border: 1px solid var(--border-color);
}

.markdown-content pre code {
  background-color: transparent;
  padding: 0;
  color: var(--text-secondary);
}

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

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.service-card {
  background-color: var(--bg-card);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--accent-light);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  color: var(--accent-primary);
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.service-card p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.service-card ul {
  list-style: none;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.service-card li {
  padding: var(--space-xs) 0;
  padding-left: var(--space-lg);
  position: relative;
}

.service-card li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
}

/* Expertise Grid */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.expertise-card {
  background-color: var(--bg-card);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.expertise-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

/* Tech Tags */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tech-tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background-color: var(--accent-light);
  color: var(--accent-primary);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.tech-tag:hover {
  background-color: var(--accent-primary);
  color: white;
}

.tech-tags.small .tech-tag {
  font-size: 0.75rem;
  padding: 0.125rem var(--space-sm);
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: var(--space-2xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-primary), var(--accent-secondary));
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-2xl);
}

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

.timeline-marker {
  position: absolute;
  left: calc(-1 * var(--space-2xl) - 6px);
  width: 14px;
  height: 14px;
  background-color: var(--accent-primary);
  border-radius: var(--radius-full);
  border: 3px solid var(--bg-primary);
  box-shadow: var(--shadow);
}

.timeline-content {
  background-color: var(--bg-card);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.timeline-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.timeline-date {
  color: var(--accent-primary);
  font-weight: 600;
  font-size: 0.875rem;
}

.timeline-company {
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: var(--space-md);
}

.timeline-content ul {
  list-style: none;
  margin-bottom: var(--space-md);
}

.timeline-content li {
  padding: var(--space-xs) 0;
  padding-left: var(--space-lg);
  position: relative;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

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

/* Education Section */
.education {
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
}

.education h3 {
  font-size: 1.5rem;
  text-align: center;
  margin-bottom: var(--space-xl);
  color: var(--text-primary);
}

.education-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
}

.education-card {
  padding: var(--space-lg);
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  min-width: 280px;
  max-width: 400px;
}

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

.education-degree {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1rem;
  margin-bottom: var(--space-xs);
}

.education-school {
  color: var(--accent);
  font-size: 0.9rem;
  margin-bottom: var(--space-xs);
}

.education-year {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Timeline Location & Clearance */
.timeline-location {
  color: var(--text-secondary);
  font-weight: 400;
}

.clearance-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  margin-top: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Contact Section */
.contact-content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.contact-text {
  margin-bottom: var(--space-2xl);
}

.contact-text p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.contact-methods {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.contact-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-xl);
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  transition: all var(--transition-base);
}

.contact-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.contact-card svg {
  flex-shrink: 0;
  color: var(--accent-primary);
}

.contact-availability {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

/* Contact Form */
.contact-form {
  text-align: left;
  background-color: var(--bg-card);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  margin-bottom: var(--space-2xl);
}

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

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

.form-group label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.9375rem;
}

.form-group .required {
  color: var(--code-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown) {
  border-color: var(--code-text);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.btn-submit {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.btn-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.btn-loading {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.spinner {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.form-status {
  margin-top: var(--space-lg);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  text-align: center;
  font-weight: 500;
  display: none;
}

.form-status.success {
  display: block;
  background-color: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
}

.form-status.error {
  display: block;
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

[data-theme="dark"] .form-status.success {
  background-color: #14532d;
  color: #86efac;
  border-color: #166534;
}

[data-theme="dark"] .form-status.error {
  background-color: #7f1d1d;
  color: #fca5a5;
  border-color: #991b1b;
}

.contact-social {
  margin-bottom: var(--space-xl);
}

.contact-social p {
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.social-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: var(--space-lg);
  }
}

/* Footer */
.footer {
  background-color: var(--bg-secondary);
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: 1px solid var(--border-color);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  max-width: 350px;
}

.footer-profile-photo {
  width: 60px;
  height: 60px;
  min-width: 60px;
  min-height: 60px;
  max-width: 60px;
  max-height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
  flex-shrink: 0;
}

.footer-brand-text {
  display: flex;
  flex-direction: column;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.footer-tagline {
  color: var(--text-muted);
  margin-top: var(--space-sm);
}

.footer-links {
  display: flex;
  gap: var(--space-3xl);
  flex-wrap: wrap;
}

.footer-heading {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.footer-nav ul {
  list-style: none;
}

.footer-nav li {
  margin-bottom: var(--space-sm);
}

.footer-nav a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--accent-primary);
}

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

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--bg-card);
  color: var(--text-muted);
  transition: all var(--transition-fast);
  border: 1px solid var(--border-color);
}

.social-links a:hover {
  background-color: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Animations */
.animate-ready {
  opacity: 0;
  transform: translateY(20px);
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

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

/* Focus styles for accessibility */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

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

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  /* Fix for Firefox backdrop-filter stacking context issue */
  .navbar {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .nav-links {
    display: flex;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    background: #ffffff !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    padding: var(--space-xl);
    gap: var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    border-top: 1px solid var(--border-color);
    z-index: 9999;
    isolation: isolate;
  }

  /* Dark mode mobile nav */
  [data-theme="dark"] .nav-links {
    background: #0f172a !important;
  }

  /* Active state - menu open */
  .nav-links.active {
    transform: translateX(0) !important;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .mobile-menu-toggle[aria-expanded="true"] .hamburger {
    background-color: transparent;
  }

  .mobile-menu-toggle[aria-expanded="true"] .hamburger::before {
    transform: rotate(45deg) translate(5px, 6px);
  }

  .mobile-menu-toggle[aria-expanded="true"] .hamburger::after {
    transform: rotate(-45deg) translate(5px, -6px);
  }

  body.menu-open {
    overflow: hidden;
  }

  .hero {
    padding: calc(var(--nav-height) + var(--space-xl)) var(--space-md) var(--space-2xl);
    min-height: auto;
  }

  .hero-intro {
    flex-direction: column;
    gap: var(--space-md);
  }

  .hero-intro .hero-title {
    text-align: center;
  }

  .profile-photo {
    width: 80px;
    height: 80px;
  }

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

  .container {
    padding: 0 var(--space-md);
  }

  .timeline {
    padding-left: var(--space-lg);
  }

  .timeline-marker {
    left: calc(-1 * var(--space-lg) - 6px);
  }

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

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-brand {
    max-width: none;
  }

  .footer-links {
    justify-content: center;
    gap: var(--space-2xl);
  }

  .social-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .floating-card {
    padding: var(--space-md) var(--space-lg);
    font-size: 0.875rem;
  }

  .services-grid,
  .expertise-grid {
    grid-template-columns: 1fr;
  }

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

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

  .education-grid {
    flex-direction: column;
    align-items: center;
  }

  .education-card {
    width: 100%;
    max-width: none;
  }
}

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

  html {
    scroll-behavior: auto;
  }
}

/* Print styles */
@media print {
  .navbar,
  .theme-toggle,
  .hero-cta,
  .hero-decoration,
  .footer {
    display: none;
  }

  body {
    color: #000;
    background: #fff;
  }

  .section {
    padding: 1rem 0;
  }
}