/**
 * Modern Zen UI - Professional & Minimalist Design
 * Clean, modern, and responsive design system
 */

/* ============================================
   CSS Variables - Zen Color Palette
   ============================================ */
:root {
  /* Primary Colors - Zen Purple */
  --zen-primary: #6366f1;
  --zen-primary-dark: #4f46e5;
  --zen-primary-light: #818cf8;
  --zen-accent: #8b5cf6;
  --zen-pink: #ec4899;
  
  /* Neutral Colors */
  --zen-white: #ffffff;
  --zen-gray-50: #f9fafb;
  --zen-gray-100: #f3f4f6;
  --zen-gray-200: #e5e7eb;
  --zen-gray-300: #d1d5db;
  --zen-gray-400: #9ca3af;
  --zen-gray-500: #6b7280;
  --zen-gray-600: #4b5563;
  --zen-gray-700: #374151;
  --zen-gray-800: #1f2937;
  --zen-gray-900: #111827;
  
  /* Text Colors */
  --zen-text-primary: #111827;
  --zen-text-secondary: #4b5563;
  --zen-text-muted: #6b7280;
  
  /* Gradients */
  --zen-gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  --zen-gradient-soft: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
  --zen-gradient-hero: linear-gradient(135deg, rgba(99, 102, 241, 0.95) 0%, rgba(139, 92, 246, 0.95) 50%, rgba(236, 72, 153, 0.85) 100%);
  
  /* Shadows - Zen Style */
  --zen-shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --zen-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --zen-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --zen-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --zen-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --zen-shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Spacing */
  --zen-spacing-xs: 0.5rem;
  --zen-spacing-sm: 1rem;
  --zen-spacing-md: 1.5rem;
  --zen-spacing-lg: 2rem;
  --zen-spacing-xl: 3rem;
  --zen-spacing-2xl: 4rem;
  
  /* Border Radius */
  --zen-radius-sm: 0.5rem;
  --zen-radius-md: 1rem;
  --zen-radius-lg: 1.5rem;
  --zen-radius-xl: 2rem;
  --zen-radius-full: 9999px;
  
  /* Transitions */
  --zen-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --zen-transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --zen-transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   Base Styles - Zen Typography
   ============================================ */
* {
  scroll-behavior: smooth;
}

html {
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  color: var(--zen-text-primary);
  background: var(--zen-gray-50);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--zen-text-primary);
  margin-bottom: 1rem;
}

/* ============================================
   Page Hero Section
   ============================================ */
.page-hero {
  padding: 120px 0 80px;
  background: var(--zen-gradient-soft);
  border-bottom: 1px solid var(--zen-gray-200);
  margin-left: 0;
}

@media (min-width: 992px) {
  .page-hero {
    margin-left: 100px;
    width: calc(100% - 100px);
  }
}

@media (max-width: 991px) {
  .page-hero {
    margin-left: 0 !important;
    width: 100% !important;
  }
  
  .about-section,
  .contact-section,
  .portfolio-section {
    margin-left: 0 !important;
    width: 100% !important;
  }
}

.page-title {
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--zen-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
}

.page-subtitle {
  font-size: 1.25rem;
  color: var(--zen-text-secondary);
  margin-bottom: 0;
}

.breadcrumb-nav {
  font-size: 0.9rem;
  color: var(--zen-text-muted);
}

.breadcrumb-nav a {
  color: var(--zen-primary);
  text-decoration: none;
  transition: var(--zen-transition-base);
}

.breadcrumb-nav a:hover {
  color: var(--zen-primary-dark);
}

.breadcrumb-nav span {
  color: var(--zen-text-muted);
}

/* ============================================
   Content Cards - Zen Style
   ============================================ */
.content-card,
.contact-info-card,
.contact-form-card {
  background: var(--zen-white);
  border-radius: var(--zen-radius-lg);
  padding: var(--zen-spacing-xl);
  box-shadow: var(--zen-shadow-md);
  border: 1px solid var(--zen-gray-200);
  transition: var(--zen-transition-base);
}

.content-card:hover,
.contact-info-card:hover,
.contact-form-card:hover {
  box-shadow: var(--zen-shadow-lg);
  transform: translateY(-2px);
}

/* ============================================
   About Page Styles
   ============================================ */
.about-section {
  padding: var(--zen-spacing-2xl) 0;
}

.profile-image-wrapper {
  position: relative;
}

.profile-image-wrapper img {
  width: 100%;
  border-radius: var(--zen-radius-xl);
  box-shadow: var(--zen-shadow-xl);
}

.status-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 0.75rem 1.25rem;
  border-radius: var(--zen-radius-full);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--zen-shadow-md);
  border: 1px solid var(--zen-gray-200);
}

.status-badge .status-dot {
  width: 8px;
  height: 8px;
  background: #25d366;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

.about-content h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.about-content .lead {
  font-size: 1.25rem;
  color: var(--zen-text-secondary);
  margin-bottom: 1rem;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: var(--zen-gray-50);
  border-radius: var(--zen-radius-md);
  transition: var(--zen-transition-base);
}

.info-item:hover {
  background: var(--zen-white);
  box-shadow: var(--zen-shadow-sm);
  transform: translateX(4px);
}

.info-item i {
  font-size: 1.5rem;
  color: var(--zen-primary);
  margin-top: 0.25rem;
}

.info-item strong {
  display: block;
  color: var(--zen-text-primary);
  margin-bottom: 0.25rem;
}

.info-item span {
  color: var(--zen-text-secondary);
}

.badge-available {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
  border-radius: var(--zen-radius-full);
  font-size: 0.875rem;
  font-weight: 600;
}

/* ============================================
   Facts Section - Zen Cards
   ============================================ */
.facts-section {
  padding: var(--zen-spacing-2xl) 0;
}

.fact-card {
  text-align: center;
  padding: var(--zen-spacing-xl);
  background: var(--zen-white);
  border-radius: var(--zen-radius-lg);
  box-shadow: var(--zen-shadow-md);
  border: 1px solid var(--zen-gray-200);
  transition: var(--zen-transition-base);
  height: 100%;
}

.fact-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--zen-shadow-xl);
  border-color: var(--zen-primary-light);
}

.fact-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: var(--zen-gradient-primary);
  border-radius: var(--zen-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--zen-shadow-lg);
}

.fact-icon i {
  font-size: 2rem;
  color: white;
}

.fact-number {
  font-size: 3rem;
  font-weight: 800;
  background: var(--zen-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.fact-label {
  color: var(--zen-text-secondary);
  font-size: 1.1rem;
  font-weight: 600;
}

/* ============================================
   Skills Section - Zen Style
   ============================================ */
.skills-section {
  padding: 3rem 0;
  position: relative;
}

.skills-section .section-title {
  margin-bottom: 2rem !important;
}

.skills-section .section-title h2 {
  margin-bottom: 0.5rem;
}

.skills-section .section-title p {
  margin-bottom: 0;
}

/* Skill Category Header */
.skill-category {
  margin-bottom: 2rem;
}

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

.category-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--zen-gray-200);
}

.category-icon {
  width: 50px;
  height: 50px;
  background: var(--zen-gradient-primary);
  border-radius: var(--zen-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--zen-shadow-md);
  flex-shrink: 0;
}

.category-icon i {
  font-size: 1.75rem;
  color: white;
}

.category-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--zen-text-primary);
  margin: 0;
  background: var(--zen-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Skill Cards */
.skills-grid {
  margin: 0;
}

.skills-grid .col-lg-4,
.skills-grid .col-md-6 {
  padding-left: 0.5rem;
  padding-right: 0.5rem;
  margin-bottom: 1rem;
}

.skill-card {
  background: var(--zen-white);
  border-radius: var(--zen-radius-lg);
  padding: 1.25rem;
  box-shadow: var(--zen-shadow-sm);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--zen-gray-200);
  position: relative;
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 0;
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--zen-gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-card:hover {
  transform: translateY(-6px) translateZ(0);
  box-shadow: var(--zen-shadow-xl);
  border-color: var(--zen-primary-light);
}

/* Disable hover effects on touch devices */
@media (hover: none) {
  .skill-card:hover {
    transform: none;
  }
  
  .skill-card:active {
    transform: scale(0.98);
  }
}

.skill-card:hover::before {
  transform: scaleX(1);
}

.skill-icon {
  width: 45px;
  height: 45px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(168, 85, 247, 0.1) 100%);
  border-radius: var(--zen-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s ease;
  flex-shrink: 0;
}

.skill-card:hover .skill-icon {
  background: var(--zen-gradient-primary);
  transform: scale(1.1) rotate(5deg);
}

.skill-icon i {
  font-size: 1.5rem;
  color: var(--zen-primary);
  transition: all 0.4s ease;
}

.skill-card:hover .skill-icon i {
  color: white;
  transform: scale(1.1);
}

.skill-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skill-content h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--zen-text-primary);
  margin: 0;
  transition: color 0.3s ease;
  line-height: 1.3;
}

.skill-card:hover .skill-content h4 {
  color: var(--zen-primary);
}

.skill-bar {
  height: 10px;
  background: var(--zen-gray-200);
  border-radius: var(--zen-radius-full);
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
}

.skill-progress {
  height: 100%;
  background: var(--zen-gradient-primary);
  border-radius: var(--zen-radius-full);
  width: 0;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
}

.skill-progress::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.skill-percent {
  font-weight: 700;
  color: var(--zen-primary);
  font-size: 0.9rem;
  align-self: flex-end;
  margin-top: 0.25rem;
  background: linear-gradient(135deg, var(--zen-primary) 0%, var(--zen-purple-600) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* GPU Acceleration for Smooth Animations */
.skill-card {
  will-change: transform;
  backface-visibility: hidden;
  perspective: 1000px;
  transform: translateZ(0);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-transform: translateZ(0);
  -moz-transform: translateZ(0);
  -ms-transform: translateZ(0);
  -o-transform: translateZ(0);
}

.skill-card:hover {
  will-change: transform;
  transform: translateY(-8px) translateZ(0);
  -webkit-transform: translateY(-8px) translateZ(0);
}

.skill-progress {
  will-change: width;
  transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-transform: translateZ(0);
  -moz-transform: translateZ(0);
  -ms-transform: translateZ(0);
  -o-transform: translateZ(0);
}

.category-header,
.skill-icon {
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-transform: translateZ(0);
  -moz-transform: translateZ(0);
  -ms-transform: translateZ(0);
  -o-transform: translateZ(0);
}

/* Optimize skill section for scroll performance */
.skills-section {
  contain: layout style paint;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.skill-category {
  contain: layout style;
}

/* Smooth transition improvements */
.skill-card,
.skill-progress,
.skill-icon,
.category-header {
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Smooth scrolling with performance optimization */
html {
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Reduce animations for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  html {
    scroll-behavior: auto;
  }
  
  .skill-card,
  .skill-progress,
  .skill-icon,
  .skill-card::before {
    transition: none !important;
    animation: none !important;
  }
  
  .skill-progress::after {
    animation: none !important;
  }
}

/* Responsive Design - Large Tablet */
@media (max-width: 1200px) {
  .skills-section {
    padding: 2.5rem 0;
  }
}

/* Responsive Design - Tablet */
@media (max-width: 992px) {
  .skills-section {
    padding: 2rem 0;
  }

  .skills-section .section-title {
    margin-bottom: 1.5rem;
  }

  .skill-category {
    margin-bottom: 1.75rem;
  }

  .category-header {
    margin-bottom: 1rem;
    gap: 0.625rem;
  }

  .category-icon {
    width: 45px;
    height: 45px;
  }

  .category-icon i {
    font-size: 1.5rem;
  }

  .category-header h3 {
    font-size: 1.35rem;
  }

  .skills-grid > [class*="col-"] {
    margin-bottom: 0.875rem;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }

  .skill-card {
    padding: 1.125rem;
    gap: 0.625rem;
  }

  .skill-icon {
    width: 42px;
    height: 42px;
  }

  .skill-icon i {
    font-size: 1.4rem;
  }

  .skill-content h4 {
    font-size: 0.95rem;
  }
}

/* Responsive Design - Mobile */
@media (max-width: 768px) {
  .skills-section {
    padding: 2rem 0;
  }

  .skills-section .section-title {
    margin-bottom: 1.5rem;
  }

  .skills-section .section-title h2 {
    font-size: 1.75rem;
  }

  .skills-section .section-title p {
    font-size: 0.95rem;
  }

  .skill-category {
    margin-bottom: 1.5rem;
  }

  .category-header {
    flex-direction: row;
    align-items: center;
    gap: 0.625rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
  }

  .category-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
  }

  .category-icon i {
    font-size: 1.5rem;
  }

  .category-header h3 {
    font-size: 1.25rem;
    line-height: 1.3;
  }

  .skills-grid > [class*="col-"] {
    padding-left: 0.375rem;
    padding-right: 0.375rem;
    margin-bottom: 0.75rem;
  }

  .skill-card {
    padding: 1rem;
    gap: 0.75rem;
  }

  .skill-icon {
    width: 42px;
    height: 42px;
  }

  .skill-icon i {
    font-size: 1.35rem;
  }

  .skill-content {
    gap: 0.5rem;
  }

  .skill-content h4 {
    font-size: 0.95rem;
    line-height: 1.3;
  }

  .skill-bar {
    height: 8px;
  }

  .skill-percent {
    font-size: 0.85rem;
    margin-top: 0.25rem;
  }
}

/* Responsive Design - Small Mobile */
@media (max-width: 576px) {
  .skills-section {
    padding: 1.5rem 0;
  }

  .skills-section .section-title {
    margin-bottom: 1.25rem;
  }

  .skills-section .section-title h2 {
    font-size: 1.5rem;
  }

  .skill-category {
    margin-bottom: 1.25rem;
  }

  .category-header {
    gap: 0.5rem;
    margin-bottom: 0.875rem;
  }

  .category-icon {
    width: 38px;
    height: 38px;
  }

  .category-icon i {
    font-size: 1.35rem;
  }

  .category-header h3 {
    font-size: 1.15rem;
  }

  .skills-grid > [class*="col-"] {
    padding-left: 0.25rem;
    padding-right: 0.25rem;
    margin-bottom: 0.625rem;
  }

  .skill-card {
    padding: 0.875rem;
    gap: 0.625rem;
  }

  .skill-icon {
    width: 38px;
    height: 38px;
  }

  .skill-icon i {
    font-size: 1.25rem;
  }

  .skill-content h4 {
    font-size: 0.9rem;
  }

  .skill-bar {
    height: 7px;
  }

  .skill-percent {
    font-size: 0.8rem;
  }
}

/* Smooth Scrolling Performance */
@media (prefers-reduced-motion: no-preference) {
  .skill-card,
  .skill-progress,
  .category-header,
  .skill-icon {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.3s ease,
                box-shadow 0.3s ease,
                background 0.3s ease;
  }
}

/* Disable animations for reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .skill-card,
  .skill-progress,
  .category-header,
  .skill-icon {
    transition: none;
    animation: none;
  }

  .skill-progress::after {
    display: none;
  }
}

/* ============================================
   Contact Page Styles
   ============================================ */
.contact-section {
  padding: var(--zen-spacing-2xl) 0;
}

.contact-info-card .info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  margin-bottom: 1rem;
  background: var(--zen-gray-50);
  border-radius: var(--zen-radius-md);
  transition: var(--zen-transition-base);
  border: 1px solid transparent;
  width: 100%;
  box-sizing: border-box;
}

.contact-info-card .info-item:hover {
  background: var(--zen-white);
  border-color: var(--zen-primary-light);
  box-shadow: var(--zen-shadow-md);
  transform: translateX(4px);
}

.contact-info-card .info-icon {
  width: 50px;
  height: 50px;
  min-width: 50px;
  background: var(--zen-gradient-primary);
  border-radius: var(--zen-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--zen-shadow-md);
}

.contact-info-card .info-icon i {
  font-size: 1.25rem;
  color: white;
}

.contact-info-card .info-icon.whatsapp {
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
}

.contact-info-card .info-content {
  flex: 1;
  min-width: 0;
  word-wrap: break-word;
  overflow-wrap: break-word;
  overflow: hidden;
}

.contact-info-card .info-content h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--zen-text-primary);
  font-weight: 600;
}

.contact-info-card .info-content p {
  color: var(--zen-text-secondary);
  margin: 0;
  word-wrap: break-word;
  overflow-wrap: break-word;
  line-height: 1.5;
  font-size: 0.95rem;
  word-break: break-word;
}

.whatsapp-link {
  color: #25d366;
  font-weight: 600;
  text-decoration: none;
  transition: var(--zen-transition-base);
}

.whatsapp-link:hover {
  color: #128c7e;
  text-decoration: underline;
}

/* Contact Form */
.contact-form-card .form-control {
  border: 2px solid var(--zen-gray-200);
  border-radius: var(--zen-radius-md);
  padding: 0.875rem 1.25rem;
  font-size: 1rem;
  transition: var(--zen-transition-base);
  background: var(--zen-white);
}

.contact-form-card .form-control:focus {
  outline: none;
  border-color: var(--zen-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.contact-form-card textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

/* Form Messages */
.form-messages {
  min-height: 50px;
  margin-bottom: 1rem;
}

.form-messages .loading {
  display: none;
  text-align: center;
  padding: 12px;
  color: var(--zen-text-secondary);
  font-weight: 500;
}

.form-messages .loading:before {
  content: "";
  display: inline-block;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  margin: 0 10px -4px 0;
  border: 3px solid var(--zen-primary);
  border-top-color: transparent;
  animation: spin 1s linear infinite;
}

.form-messages .error-message {
  display: none;
  color: #fff;
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  text-align: center;
  padding: 12px 16px;
  font-weight: 600;
  border-radius: var(--zen-radius-md);
  box-shadow: var(--zen-shadow-sm);
  margin-bottom: 0;
}

.form-messages .sent-message {
  display: none;
  color: #fff;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  text-align: center;
  padding: 12px 16px;
  font-weight: 600;
  border-radius: var(--zen-radius-md);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
  margin-bottom: 0;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* ============================================
   Portfolio Page Styles
   ============================================ */
.portfolio-section {
  padding: var(--zen-spacing-2xl) 0;
}

.portfolio-card {
  background: var(--zen-white);
  border-radius: var(--zen-radius-lg);
  overflow: hidden;
  box-shadow: var(--zen-shadow-md);
  border: 1px solid var(--zen-gray-200);
  transition: var(--zen-transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.portfolio-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--zen-shadow-xl);
  border-color: var(--zen-primary-light);
}

.portfolio-img {
  overflow: hidden;
  position: relative;
  height: 250px;
}

.portfolio-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--zen-transition-slow);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.9) 0%, rgba(139, 92, 246, 0.9) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--zen-transition-base);
}

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

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

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

.portfolio-links a {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  transition: var(--zen-transition-base);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.portfolio-links a:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
  color: white;
}

.portfolio-info {
  padding: 1.5rem;
  flex-grow: 1;
}

.portfolio-category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--zen-gradient-primary);
  color: white;
  border-radius: var(--zen-radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.portfolio-info h4 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--zen-text-primary);
}

.portfolio-info p {
  color: var(--zen-text-secondary);
  margin-bottom: 1rem;
  font-size: 0.9rem;
  line-height: 1.6;
}

.portfolio-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tech-badge {
  padding: 0.25rem 0.75rem;
  background: var(--zen-gray-100);
  color: var(--zen-text-secondary);
  border-radius: var(--zen-radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--zen-gray-200);
}

/* ============================================
   Buttons - Zen Style
   ============================================ */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--zen-radius-full);
  text-decoration: none;
  transition: var(--zen-transition-base);
  border: 2px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--zen-gradient-primary);
  color: white;
  box-shadow: var(--zen-shadow-md);
}

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

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

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

/* ============================================
   Service Cards - Home Page
   ============================================ */
.intro-section {
  padding: var(--zen-spacing-2xl) 0;
}

.intro-image img {
  width: 100%;
  border-radius: var(--zen-radius-xl);
  box-shadow: var(--zen-shadow-xl);
}

.service-card {
  background: var(--zen-white);
  padding: var(--zen-spacing-xl);
  border-radius: var(--zen-radius-lg);
  box-shadow: var(--zen-shadow-md);
  border: 1px solid var(--zen-gray-200);
  text-align: center;
  transition: var(--zen-transition-base);
  height: 100%;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--zen-shadow-xl);
  border-color: var(--zen-primary-light);
}

.service-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: var(--zen-gradient-primary);
  border-radius: var(--zen-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--zen-shadow-lg);
}

.service-icon i {
  font-size: 2rem;
  color: white;
}

.service-card h4 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--zen-text-primary);
}

.service-card p {
  color: var(--zen-text-secondary);
  margin: 0;
}

/* ============================================
   Section Headings
   ============================================ */
.section-heading {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: var(--zen-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: var(--zen-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title p {
  font-size: 1.1rem;
  color: var(--zen-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 992px) {
  .page-title {
    font-size: 2.5rem;
  }
  
  .page-hero {
    padding: 100px 0 60px;
  }
  
  .info-grid {
    grid-template-columns: 1fr;
  }
  
  .section-heading {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .page-title {
    font-size: 2rem;
  }
  
  .page-subtitle {
    font-size: 1rem;
  }
  
  .page-hero {
    padding: 80px 0 50px;
    margin-left: 0 !important;
    width: 100% !important;
  }
  
  .breadcrumb-nav {
    text-align: center;
    margin-top: 15px;
  }
  
  .content-card,
  .contact-info-card,
  .contact-form-card {
    padding: var(--zen-spacing-lg);
  }
  
  .about-section {
    padding: 50px 0;
  }
  
  .about-section .row {
    flex-direction: column;
  }
  
  .profile-image-wrapper {
    margin-bottom: 30px;
    text-align: center;
  }
  
  .about-content {
    text-align: center;
  }
  
  .info-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .info-item {
    justify-content: center;
    text-align: center;
  }
  
  .contact-section {
    padding: 50px 0;
  }
  
  .contact-section .row {
    flex-direction: column;
  }
  
  .contact-info-card {
    margin-bottom: 30px;
  }
  
  .contact-form-card {
    width: 100%;
  }
  
  .portfolio-section {
    padding: 50px 0;
  }
  
  .portfolio-card {
    margin-bottom: 25px;
  }
  
  .btn-primary,
  .btn-secondary {
    width: 100%;
    justify-content: center;
    margin-bottom: 0.5rem;
  }
  
  .btn-secondary.ms-3 {
    margin-left: 0 !important;
  }
  
  .project-hero-image img {
    height: 300px;
  }
  
  .project-sidebar {
    position: static;
    margin-top: 2rem;
  }
  
  .tech-stack {
    gap: 0.5rem;
  }
  
  .tech-tag {
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
  }
}

@media (max-width: 576px) {
  .page-title {
    font-size: 1.75rem;
  }
  
  .page-subtitle {
    font-size: 0.9rem;
  }
  
  .page-hero {
    padding: 70px 0 40px;
  }
  
  .about-section,
  .contact-section,
  .portfolio-section {
    padding: 40px 0;
  }
  
  .section-heading {
    font-size: 1.5rem;
  }
  
  .content-card,
  .contact-info-card,
  .contact-form-card {
    padding: 1.25rem;
  }
  
  .profile-image-wrapper img {
    max-width: 250px;
    margin: 0 auto;
  }
  
  .info-item {
    flex-direction: column;
    text-align: center;
    padding: 1rem;
  }
  
  .info-item i {
    margin-bottom: 0.5rem;
  }
  
  .contact-info-card .info-item {
    padding: 1rem;
  }
  
  .portfolio-card {
    margin-bottom: 20px;
  }
  
  .portfolio-card .portfolio-info h4 {
    font-size: 1.1rem;
  }
  
  .portfolio-card .portfolio-info p {
    font-size: 0.85rem;
  }
  
  .btn-primary,
  .btn-secondary {
    font-size: 14px;
    padding: 11px 24px;
  }
}

/* ============================================
   Animations
   ============================================ */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.1);
  }
}

/* ============================================
   Project Detail Page Styles
   ============================================ */
.project-detail-section {
  padding: var(--zen-spacing-2xl) 0;
}

.project-hero-image {
  position: relative;
  border-radius: var(--zen-radius-xl);
  overflow: hidden;
  box-shadow: var(--zen-shadow-xl);
}

.project-hero-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.project-status-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: var(--zen-radius-full);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--zen-shadow-md);
  border: 1px solid var(--zen-gray-200);
}

.project-status-badge.live {
  color: #10b981;
}

.project-status-badge i {
  font-size: 1.1rem;
}

.project-meta {
  padding: 1.5rem;
  background: var(--zen-gray-50);
  border-radius: var(--zen-radius-md);
  border: 1px solid var(--zen-gray-200);
}

.meta-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.meta-item i {
  font-size: 1.5rem;
  color: var(--zen-primary);
  margin-top: 0.25rem;
}

.meta-item strong {
  display: block;
  color: var(--zen-text-primary);
  margin-bottom: 0.25rem;
  font-size: 0.9rem;
}

.meta-item p {
  color: var(--zen-text-secondary);
  margin: 0;
  font-size: 0.95rem;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.tech-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--zen-gradient-primary);
  color: white;
  border-radius: var(--zen-radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--zen-shadow-sm);
  transition: var(--zen-transition-base);
}

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

.tech-tag i {
  font-size: 1rem;
}

.challenge-list,
.solution-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.challenge-list li,
.solution-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  margin-bottom: 0.75rem;
  background: var(--zen-gray-50);
  border-radius: var(--zen-radius-md);
  border-left: 3px solid var(--zen-primary);
  transition: var(--zen-transition-base);
}

.challenge-list li:hover,
.solution-list li:hover {
  background: var(--zen-white);
  box-shadow: var(--zen-shadow-sm);
  transform: translateX(4px);
}

.challenge-list li i,
.solution-list li i {
  color: var(--zen-primary);
  font-size: 1.25rem;
  margin-top: 0.25rem;
  flex-shrink: 0;
}

.challenge-list li span,
.solution-list li span {
  color: var(--zen-text-secondary);
  line-height: 1.6;
}

.solution-list li {
  border-left-color: #10b981;
}

.solution-list li i {
  color: #10b981;
}

/* Project Sidebar */
.project-sidebar {
  position: sticky;
  top: 100px;
}

.sidebar-card {
  background: var(--zen-white);
  border-radius: var(--zen-radius-lg);
  padding: var(--zen-spacing-lg);
  box-shadow: var(--zen-shadow-md);
  border: 1px solid var(--zen-gray-200);
}

.sidebar-card h4 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--zen-text-primary);
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--zen-gray-200);
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.info-item i {
  font-size: 1.5rem;
  color: var(--zen-primary);
  margin-top: 0.25rem;
  flex-shrink: 0;
}

.info-item strong {
  display: block;
  color: var(--zen-text-primary);
  margin-bottom: 0.25rem;
  font-size: 0.9rem;
}

.info-item p {
  color: var(--zen-text-secondary);
  margin: 0;
  font-size: 0.95rem;
}

.status-live {
  color: #10b981;
  font-weight: 600;
}

.action-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.action-buttons .btn-primary,
.action-buttons .btn-secondary {
  width: 100%;
  justify-content: center;
}

/* ============================================
   Utility Classes
   ============================================ */
.section-bg {
  background: var(--zen-gray-50);
}

.lead {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--zen-text-secondary);
}

.w-100 {
  width: 100%;
}

.mb-2 {
  margin-bottom: 0.5rem;
}