@import url('https://fonts.googleapis.com/css2?family=Raleway:ital,wght@0,100..900;1,100..900&display=swap');

:root {
  --primary-color: #121212;
  --secondary-color: #0c4a6e;
  --accent-color: #3b82f6;
  --accent-hover: #2563eb;
  --text-color: #fff;
  --text-secondary: #ccc;
  --text-muted: #9ca3af;
  --bg-card: rgba(30, 41, 59, 0.7);
  --bg-glass: rgba(255, 255, 255, 0.1);
  --border-color: rgba(255, 255, 255, 0.1);
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  --transition-speed: 0.3s;
  --transition-easing: cubic-bezier(0.4, 0, 0.2, 1);
  --section-padding: 5rem 0;
  --border-radius: 15px;
  --border-radius-sm: 8px;
  --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  --box-shadow-hover: 0 20px 40px rgba(59, 130, 246, 0.15);
  --blur-strength: 10px;
  --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, #1e293b 100%);
  --gradient-accent: linear-gradient(90deg, var(--accent-color), var(--secondary-color));
  --gradient-card: linear-gradient(145deg, rgba(30, 41, 59, 0.7), rgba(15, 23, 42, 0.8));  --header-bg: rgba(18, 18, 18, 0.9);
  --header-bg-scrolled: rgba(18, 18, 18, 0.95);
  --mobile-menu-bg: rgba(18, 18, 18, 0.95);
  --footer-bg: rgba(18, 18, 18, 0.95);  --btn-primary-bg: var(--gradient-accent);
  --btn-primary-color: white;
  --btn-primary-shadow: var(--box-shadow);
  --btn-primary-hover-bg: var(--gradient-accent);
  --btn-primary-hover-shadow: var(--box-shadow-hover);
  --scroll-top-bg: var(--gradient-accent);
  --scroll-top-color: white;
}

/* Light theme variables */
[data-theme="light"] {
  --primary-color: #f8fafc;
  --secondary-color: #e2e8f0;
  --accent-color: #3b82f6;
  --accent-hover: #2563eb;
  --text-color: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --bg-card: rgba(255, 255, 255, 0.7);
  --bg-glass: rgba(0, 0, 0, 0.05);
  --border-color: rgba(0, 0, 0, 0.1);
  --gradient-primary: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.8), rgba(248, 250, 252, 0.9));  --header-bg: rgba(248, 250, 252, 0.9);
  --header-bg-scrolled: rgba(248, 250, 252, 0.95);
  --mobile-menu-bg: rgba(248, 250, 252, 0.95);  --footer-bg: rgba(248, 250, 252, 0.95);  --btn-primary-bg: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  --btn-primary-color: white;
  --btn-primary-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
  --btn-primary-hover-bg: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
  --btn-primary-hover-shadow: 0 8px 25px rgba(59, 130, 246, 0.45);
  --scroll-top-bg: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  --scroll-top-color: white;
}

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

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

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

body {
  margin: 0;
  background: var(--gradient-primary);
  color: var(--text-color);
  font-family: Raleway, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  opacity: 0;
  transform: translateY(-30px);
  animation: fadeInBody 1s ease-out forwards;
  overflow-x: hidden;
  transition: background 0.3s var(--transition-easing), color 0.3s var(--transition-easing);
}

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

/* Scrollbar customization */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--primary-color);
}

::-webkit-scrollbar-thumb {
  background: var(--accent-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-hover);
}

/* Selection styles */
::selection {
  background: var(--accent-color);
  color: white;
}

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

/* Header and Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--header-bg);
  backdrop-filter: blur(var(--blur-strength));
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-easing);
}

header.scrolled {
  background: var(--header-bg-scrolled);
  box-shadow: var(--box-shadow);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent-color);
  text-decoration: none;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: transform var(--transition-speed) var(--transition-easing);
  cursor: pointer;
}

.logo:hover {
  transform: scale(1.1);
}

.nav-links {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 2rem;
}

.nav-links li {
  position: relative;
}

.nav-links a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-speed) var(--transition-easing);
  position: relative;
  padding: 0.5rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: width var(--transition-speed) var(--transition-easing);
  border-radius: 2px;
}

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

.nav-links a:hover {
  color: var(--accent-color);
  transform: translateY(-2px);
}

/* Theme Toggle Button */
.theme-toggle {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-speed) var(--transition-easing);
  color: var(--text-color);
  margin-left: 1rem;
}

.theme-toggle:hover {
  background: var(--accent-color);
  color: white;
  transform: rotate(180deg);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 1.5rem;
  cursor: pointer;
  transition: all var(--transition-speed) var(--transition-easing);
  padding: 0.5rem;
  border-radius: var(--border-radius-sm);
}

.menu-toggle:hover {
  color: var(--accent-color);
  background: var(--bg-glass);
}

/* Container and Sections */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.1), transparent 60%);
  z-index: -1;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 4.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: linear-gradient(90deg, var(--text-color), var(--accent-color));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 2px 10px rgba(59, 130, 246, 0.2);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--accent-color);
  margin-bottom: 1rem;
  min-height: 2em;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.btn {
  padding: 1rem 2rem;
  border-radius: var(--border-radius-sm);
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition-speed) var(--transition-easing);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
}

.btn-primary {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-color);
  box-shadow: var(--btn-primary-shadow);
}

.btn-primary:hover {
  background: var(--btn-primary-hover-bg);
  transform: translateY(-3px);
  box-shadow: var(--btn-primary-hover-shadow);
}

.btn-secondary {
  background: var(--bg-glass);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--accent-color);
  color: white;
  transform: translateY(-3px);
}

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

.btn-outline:hover {
  background: var(--accent-color);
  color: white;
  transform: translateY(-3px);
}

.hero-social {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  transition: all var(--transition-speed) var(--transition-easing);
  backdrop-filter: blur(10px);
}

.social-link:hover {
  transform: translateY(-5px);
  background: var(--accent-color);
  box-shadow: var(--box-shadow-hover);
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 40px;
  background: var(--accent-color);
  border-radius: 2px;
  opacity: 0.7;
}

.scroll-indicator span {
  position: absolute;
  top: 0;
  left: 50%;
  width: 6px;
  height: 6px;
  background: var(--accent-color);
  border-radius: 50%;
  transform: translateX(-50%);
  animation: scroll-down 2s infinite;
}

@keyframes scroll-down {
  0% {
    top: 0;
    opacity: 1;
  }
  100% {
    top: 30px;
    opacity: 0;
  }
}

.section {
  padding: var(--section-padding);
  position: relative;
  z-index: 1;
}

.section:nth-child(odd)::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at bottom left, rgba(12, 74, 110, 0.08), transparent 70%);
  z-index: -1;
}

.section:nth-child(even)::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.08), transparent 70%);
  z-index: -1;
}

.section-title {
  font-size: 2.75rem;
  margin-bottom: 3.5rem;
  text-align: center;
  position: relative;
  display: inline-block;
  left: 50%;
  transform: translateX(-50%);
  font-weight: 700;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
  border-radius: 2px;
}

/* Cursor Animation */
.cursor {
  display: inline-block;
  width: 2px;
  height: 1.5em;
  background-color: var(--accent-color);
  animation: blink 1s steps(2, start) infinite;
  margin-left: 3px;
  vertical-align: top;
}

@keyframes blink {
  0%, 50% {
    opacity: 1;
  }
  50.01%, 100% {
    opacity: 0;
  }
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 3rem;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}

.about-image {
  display: flex;
  justify-content: center;
}

.profile-picture {
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: var(--gradient-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  color: var(--accent-color);
  border: 3px solid var(--accent-color);
  box-shadow: var(--box-shadow);
  transition: transform var(--transition-speed) var(--transition-easing);
  overflow: hidden;
  position: relative;
}

.profile-picture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.profile-picture:hover {
  transform: scale(1.05);
}

.about-text {
  background: var(--bg-card);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
}

.about-intro {
  font-size: 1.3rem;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.stat {
  text-align: center;
  padding: 1rem;
  background: var(--bg-glass);
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-color);
  transition: transform var(--transition-speed) var(--transition-easing);
}

.stat:hover {
  transform: translateY(-5px);
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Skills Section */
.skills-grid {
  display: grid;
  gap: 3rem;
}

.skill-category {
  background: var(--bg-card);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
}

.category-title {
  font-size: 1.5rem;
  color: var(--accent-color);
  margin-bottom: 2rem;
  text-align: center;
  font-weight: 600;
}

.skills-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  justify-items: center;
}

.skill-card {
  background: var(--bg-glass);
  padding: 2rem 1.5rem;
  border-radius: var(--border-radius-sm);
  text-align: center;
  transition: all var(--transition-speed) var(--transition-easing);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
  transition: left 0.5s ease;
}

.skill-card:hover::before {
  left: 100%;
}

.skill-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--box-shadow-hover);
  border-color: var(--accent-color);
}

.skill-card i {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  color: var(--accent-color);
  transition: transform var(--transition-speed) var(--transition-easing);
  display: block;
}

.skill-card:hover i {
  transform: scale(1.2);
}

.skill-card h4 {
  font-size: 1.2rem;
  margin: 0;
  color: var(--text-color);
  font-weight: 600;
}



/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
  margin-top: 2rem;
}

.project-card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: all var(--transition-speed) var(--transition-easing);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, rgba(59, 130, 246, 0.1), transparent);
  opacity: 0;
  transition: opacity var(--transition-speed) var(--transition-easing);
  z-index: 1;
  pointer-events: none;
}

.project-card:hover::before {
  opacity: 1;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--box-shadow-hover);
  border-color: var(--accent-color);
}

.project-image {
  height: 200px;
  background: var(--gradient-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--accent-color);
  position: relative;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-speed) var(--transition-easing);
}

.project-card:hover .project-image img {
  transform: scale(1.1);
}

.project-image .fallback-icon {
  display: none;
}

.project-image:not(:has(img)) .fallback-icon {
  display: block;
}

.project-image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 40px;
  background: linear-gradient(to top, var(--bg-card), transparent);
}

.project-content {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 2;
}

.project-title {
  font-size: 1.4rem;
  color: var(--text-color);
  margin-bottom: 1rem;
  font-weight: 600;
}

.project-description {
  color: var(--text-secondary);
  line-height: 1.6;
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tech-tag {
  background: var(--bg-glass);
  color: var(--accent-color);
  padding: 0.3rem 0.8rem;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--accent-color);
  transition: all var(--transition-speed) var(--transition-easing);
}

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

.project-links {
  display: flex;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.project-link {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-speed) var(--transition-easing);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--accent-color);
}

.project-link:hover {
  background: var(--accent-color);
  color: white;
  transform: translateY(-2px);
}

/* Contact Section */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 2rem;
}

.contact-info h3 {
  font-size: 2rem;
  color: var(--accent-color);
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: var(--border-radius-sm);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-easing);
}

.contact-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow-hover);
  border-color: var(--accent-color);
}

.contact-item i {
  font-size: 1.5rem;
  color: var(--accent-color);
  width: 24px;
  text-align: center;
}

.contact-item div h4 {
  font-size: 1rem;
  color: var(--text-color);
  margin-bottom: 0.25rem;
}

.contact-item div a,
.contact-item div span {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-speed) var(--transition-easing);
}

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

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

.social-links .social-link {
  width: 50px;
  height: 50px;
  font-size: 1.2rem;
}

.contact-form {
  background: var(--bg-card);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-easing);
}

.contact-form:hover {
  box-shadow: var(--box-shadow-hover);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-color);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-color);
  font-family: Raleway, sans-serif;
  font-size: 1rem;
  transition: all var(--transition-speed) var(--transition-easing);
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  background: rgba(255, 255, 255, 0.05);
}

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

/* Form validation and feedback styles */
.field-error {
  color: var(--error-color, #ef4444);
  font-size: 0.875rem;
  margin-top: 0.5rem;
  display: none;
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--transition-speed) var(--transition-easing);
}

.field-error.show {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.field-help {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 0.5rem;
  display: block;
  line-height: 1.4;
}

.field-counter {
  color: var(--text-secondary);
  font-size: 0.8rem;
  margin-top: 0.5rem;
  display: block;
  text-align: right;
  transition: color var(--transition-speed) var(--transition-easing);
}

.field-counter.warning {
  color: var(--warning-color, #f59e0b);
}

.field-counter.error {
  color: var(--error-color, #ef4444);
}

/* Form field states */
.form-group input.error,
.form-group textarea.error {
  border-color: var(--error-color, #ef4444);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-group input.success,
.form-group textarea.success {
  border-color: var(--success-color, #22c55e);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

/* Enhanced form accessibility */
.form-group input:invalid:not(:focus):not(:placeholder-shown),
.form-group textarea:invalid:not(:focus):not(:placeholder-shown) {
  border-color: var(--error-color, #ef4444);
}

/* Honeypot field (hidden anti-spam) */
.hidden {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(1px, 1px, 1px, 1px) !important;
}

/* Submit button loading state */
.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none !important;
}

.btn:disabled:hover {
  transform: none !important;
  box-shadow: var(--btn-primary-shadow) !important;
}

/* Footer */
footer {
  background: var(--footer-bg);
  padding: 3rem 0 2rem;
  margin-top: 3rem;
  position: relative;
  border-top: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.footer-logo {
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: all var(--transition-speed) var(--transition-easing);
  padding: 0.5rem;
  border-radius: var(--border-radius-sm);
}

.footer-links a:hover {
  color: var(--accent-color);
  background: var(--bg-glass);
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social a {
  color: var(--text-secondary);
  font-size: 1.2rem;
  transition: all var(--transition-speed) var(--transition-easing);
  padding: 0.5rem;
  border-radius: 50%;
}

.footer-social a:hover {
  color: var(--accent-color);
  background: var(--bg-glass);
  transform: translateY(-3px);
}

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.copyright {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.footer-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

/* Scroll to top button */
#scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3rem;
  height: 3rem;
  background: var(--scroll-top-bg);
  color: var(--scroll-top-color);
  border: none;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  box-shadow: var(--box-shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-speed) var(--transition-easing);
  z-index: 999;
}

#scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#scroll-top:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow-hover);
}

/* Breadcrumb Navigation Styles */
.breadcrumb-nav {
  background: var(--header-bg);
  backdrop-filter: blur(var(--blur-strength));
  border-bottom: 1px solid var(--border-color);
  padding: 0.5rem 0;
  position: relative;
  z-index: 998;
  transition: all 0.4s var(--transition-easing);
  opacity: 0;
  transform: translateY(-20px);
  max-height: 0;
  overflow: hidden;
}

.breadcrumb-nav.visible {
  opacity: 1;
  transform: translateY(0);
  max-height: 60px;
  padding: 0.75rem 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.breadcrumb-item {
  display: flex;
  align-items: center;
}

.breadcrumb-item:not(:last-child)::after {
  content: '/';
  margin: 0 0.5rem;
  color: var(--text-muted);
  font-weight: 300;
}

.breadcrumb-item a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-speed) var(--transition-easing);
}

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

.breadcrumb-item.active {
  color: var(--accent-color);
  font-weight: 500;
}

/* Hide breadcrumb on mobile for better UX */
@media (max-width: 768px) {
  .breadcrumb-nav {
    display: none;
  }
}

/* Breadcrumb slide-in animation */
@keyframes slideInBreadcrumb {
  from {
    opacity: 0;
    transform: translateY(-20px);
    max-height: 0;
  }
  to {
    opacity: 1;
    transform: translateY(0);
    max-height: 60px;
  }
}

@keyframes slideOutBreadcrumb {
  from {
    opacity: 1;
    transform: translateY(0);
    max-height: 60px;
  }
  to {
    opacity: 0;
    transform: translateY(-20px);
    max-height: 0;
  }
}

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

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s var(--transition-easing);
}

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

/* Responsive Design */
@media (max-width: 992px) {
  .hero-title {
    font-size: 3.8rem;
  }

  .section-title {
    font-size: 2.4rem;
  }

  .container {
    padding: 0 3rem;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 3.2rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .container {
    padding: 0 2rem;
  }

  .section {
    padding: 4rem 0;
  }

  .navbar {
    padding: 1rem;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--mobile-menu-bg);
    backdrop-filter: blur(var(--blur-strength));
    flex-direction: column;
    padding: 1.5rem 0;
    box-shadow: var(--box-shadow);
    border-bottom-left-radius: var(--border-radius);
    border-bottom-right-radius: var(--border-radius);
    border-top: 1px solid var(--border-color);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links li {
    margin: 0.5rem 0;
    text-align: center;
  }

  .nav-links a {
    font-size: 1.1rem;
    padding: 1rem;
    display: block;
    width: 100%;
  }

  .menu-toggle {
    display: block;
  }

  .theme-toggle {
    display: none;
  }

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

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

  .profile-picture {
    width: 200px;
    height: 200px;
    font-size: 4rem;
  }

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

  .hero-social {
    margin-top: 2rem;
  }

  .social-link {
    width: 50px;
    height: 50px;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2.8rem;
    margin-bottom: 1rem;
  }

  .section-title {
    font-size: 1.8rem;
    margin-bottom: 2rem;
  }

  .container {
    padding: 0 1.5rem;
  }

  .section {
    padding: 3rem 0;
  }

  .hero {
    padding-top: 100px;
  }

  .about-text,
  .contact-form {
    padding: 2rem;
  }

  .profile-picture {
    width: 150px;
    height: 150px;
    font-size: 3rem;
  }

  .hero-buttons {
    gap: 0.75rem;
  }

  .btn {
    padding: 0.875rem 1.5rem;
    font-size: 0.9rem;
  }

  .footer-content {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }

  .footer-links {
    flex-direction: column;
    gap: 0.5rem;
  }

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

  #scroll-top {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 2.5rem;
    height: 2.5rem;
  }

  .contact-item {
    padding: 1.25rem;
  }

  .project-content {
    padding: 1.5rem;
  }

  .skill-card {
    padding: 1.25rem;
  }
}

/* Print styles */
@media print {
  * {
    background: white !important;
    color: black !important;
  }
  
  header,
  #scroll-top,
  .theme-toggle,
  .menu-toggle {
    display: none !important;
  }
  
  .section {
    page-break-inside: avoid;
  }
}