/* ==========================================================================
   Component Styles - Navigation, Hero, Cards, etc.
   ========================================================================== */

/* ==========================================================================
   Navigation
   ========================================================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gray-200);
  z-index: var(--z-fixed);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.nav-brand {
  display: flex;
  align-items: center;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--gray-900);
  text-decoration: none;
  transition: all var(--transition-normal);
}

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

.brand-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

.nav-menu {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--space-8);
  margin: 0;
  padding: 0;
}

.nav-link {
  font-weight: var(--font-weight-medium);
  color: var(--gray-700);
  transition: all var(--transition-normal);
  position: relative;
  padding: var(--space-2) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transition: width var(--transition-normal);
}

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: var(--space-2);
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--gray-700);
  margin: 3px 0;
  transition: var(--transition-normal);
  border-radius: var(--border-radius-sm);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background: var(--white);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: var(--space-12);
    transition: left var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-list {
    flex-direction: column;
    gap: var(--space-6);
    text-align: center;
  }
  
  .nav-link {
    font-size: var(--font-size-lg);
    padding: var(--space-3) var(--space-6);
  }
  
  .nav-toggle.active .bar:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
  }
  
  .nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active .bar:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
  }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

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

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-gradient {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, 
    rgba(37, 99, 235, 0.05) 0%, 
    rgba(124, 58, 237, 0.05) 50%,
    rgba(16, 185, 129, 0.05) 100%);
}

.hero-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 1px 1px, rgba(37, 99, 235, 0.1) 1px, transparent 0);
  background-size: 40px 40px;
  animation: float 20s ease-in-out infinite;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  width: 100%;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  min-height: 80vh;
}

.hero-title {
  font-size: var(--font-size-6xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-6);
  color: var(--gray-900);
}

.hero-subtitle {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-medium);
  color: var(--gray-700);
  margin-bottom: var(--space-6);
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-8);
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  font-weight: var(--font-weight-medium);
}

/* Hero Visual */
.hero-visual {
  position: relative;
}

.hero-image-container {
  position: relative;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
}

.hero-image-bg {
  position: absolute;
  top: -20px;
  left: -20px;
  right: -20px;
  bottom: -20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--border-radius-xl);
  z-index: -1;
}

.hero-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
}

.floating-cards {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.floating-card {
  position: absolute;
  background: var(--white);
  padding: var(--space-3);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--gray-700);
}

.floating-card[data-float="1"] {
  top: 20%;
  left: -10%;
  animation: float 3s ease-in-out infinite;
}

.floating-card[data-float="2"] {
  top: 60%;
  right: -15%;
  animation: float 3s ease-in-out infinite 1s;
}

.floating-card[data-float="3"] {
  bottom: 10%;
  left: -5%;
  animation: float 3s ease-in-out infinite 2s;
}

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

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: var(--gray-500);
}

.scroll-mouse {
  width: 24px;
  height: 40px;
  border: 2px solid var(--gray-400);
  border-radius: 12px;
  margin: 0 auto var(--space-2);
  position: relative;
}

.scroll-mouse::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 6px;
  background: var(--gray-400);
  border-radius: 1px;
  animation: scroll-mouse 2s ease-in-out infinite;
}

@keyframes scroll-mouse {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

.scroll-text {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: var(--font-weight-medium);
}

/* ==========================================================================
   Project Cards
   ========================================================================== */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-16);
}

.project-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.project-card.featured {
  grid-column: span 2;
}

.project-image {
  position: relative;
  height: 250px;
  overflow: hidden;
}

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

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

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(37, 99, 235, 0.9);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

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

.project-actions {
  display: flex;
  gap: var(--space-4);
}

.project-btn {
  width: 48px;
  height: 48px;
  background: var(--white);
  color: var(--primary);
  border-radius: var(--border-radius-full);
  display: flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
}

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

.project-content {
  padding: var(--space-6);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
}

.project-category {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--border-radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.project-status {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--border-radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-ongoing { background: var(--warning); color: var(--white); }
.status-active { background: var(--success); color: var(--white); }
.status-completed { background: var(--info); color: var(--white); }

.project-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-3);
  line-height: var(--line-height-tight);
}

.project-title a {
  color: var(--gray-900);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.project-title a:hover {
  color: var(--primary);
}

.project-description {
  color: var(--gray-600);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
}

.project-meta {
  margin-bottom: var(--space-4);
}

.project-period {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--gray-500);
}

.project-technologies {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.tech-tag {
  background: var(--gray-100);
  color: var(--gray-700);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--border-radius-full);
  transition: all var(--transition-fast);
}

.tech-tag:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-1px);
}

.project-footer {
  border-top: 1px solid var(--gray-200);
  padding-top: var(--space-4);
}

.project-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--primary);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.project-link:hover {
  gap: var(--space-3);
  color: var(--primary-dark);
}

/* ==========================================================================
   Skills Components
   ========================================================================== */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.skill-card {
  background: var(--white);
  padding: var(--space-6);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-200);
}

.skill-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.skill-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-4);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-3xl);
  color: var(--white);
}

.skill-name {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-3);
  color: var(--gray-900);
}

.skill-description {
  color: var(--gray-600);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
}

.skill-progress {
  position: relative;
  background: var(--gray-200);
  height: 8px;
  border-radius: var(--border-radius-full);
  overflow: hidden;
}

.skill-bar {
  height: 100%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--border-radius-full);
  width: 0;
  transition: width 1.5s ease-out;
}

/* Skills Category Layout */
.skills-categories {
  margin-bottom: var(--space-20);
}

.skill-category {
  margin-bottom: var(--space-16);
}

.category-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  text-align: center;
  justify-content: center;
}

.category-icon {
  font-size: var(--font-size-4xl);
}

.category-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--gray-900);
}

/* Skill Items */
.skill-item {
  background: var(--white);
  padding: var(--space-6);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-normal);
}

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

.skill-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
}

.skill-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--gray-900);
}

.skill-percentage {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--primary);
}

.skill-bar-container {
  position: relative;
  background: var(--gray-200);
  height: 6px;
  border-radius: var(--border-radius-full);
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--border-radius-full);
  width: 0;
  transition: width 1.5s ease-out;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-section {
  margin-bottom: var(--space-6);
}

.footer-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--white);
  margin-bottom: var(--space-4);
}

.footer-section-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--white);
  margin-bottom: var(--space-4);
}

.footer-description {
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
}

.social-links {
  display: flex;
  gap: var(--space-4);
}

.social-link {
  width: 40px;
  height: 40px;
  background: var(--gray-800);
  color: var(--gray-300);
  border-radius: var(--border-radius-full);
  display: flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  transition: all var(--transition-normal);
}

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

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-2);
}

.footer-link {
  color: var(--gray-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--white);
}

.contact-info {
  margin-top: var(--space-4);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  color: var(--gray-400);
}

.contact-item i {
  width: 16px;
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding-top: var(--space-8);
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.copyright {
  color: var(--gray-500);
  font-size: var(--font-size-sm);
}

.footer-note {
  color: var(--gray-500);
  font-size: var(--font-size-sm);
}

.footer-note .fa-heart {
  color: var(--error);
  animation: pulse 2s ease-in-out infinite;
}

/* ==========================================================================
   Sections
   ========================================================================== */

.featured-projects {
  padding: var(--space-20) 0;
  background: var(--gray-50);
}

.skills-preview {
  padding: var(--space-20) 0;
}

.cta-section {
  padding: var(--space-20) 0;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  text-align: center;
}

.cta-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--white);
  margin-bottom: var(--space-4);
}

.cta-description {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  line-height: var(--line-height-relaxed);
  max-width: 600px;
  margin: 0 auto var(--space-8);
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

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

.cta-section .btn-primary:hover {
  background: var(--gray-100);
  transform: translateY(-2px);
}

.cta-section .btn-outline {
  border-color: var(--white);
  color: var(--white);
}

.cta-section .btn-outline:hover {
  background: var(--white);
  color: var(--primary);
}

.section-footer {
  text-align: center;
  margin-top: var(--space-12);
}