/* === Enhanced Base Styles with Dark Mode Vars === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --light: #e9ecef;
  --light-gray: #dee2e6;
  --medium-gray: #ced4da;
  --dark-gray: #adb5bd;
  --darker-gray: #6c757d;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.15);
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --border-radius: 20px;
  /* Dark mode overrides */
  --bg-primary: #f8f9fa;
  --text-primary: #495057;
  --card-bg: white;
}

[data-theme="dark"] {
  --bg-primary: #1a1a1a;
  --text-primary: #e9ecef;
  --light: #2a2a2a;
  --light-gray: #3a3a3a;
  --medium-gray: #4a4a4a;
  --dark-gray: #6a6a6a;
  --darker-gray: #9a9a9a;
  --card-bg: #2a2a2a;
  --shadow: 0 8px 30px rgba(255, 255, 255, 0.05);
}

body {
  font-family: 'Raleway', sans-serif;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--light) 50%, var(--light-gray) 100%);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  transition: var(--transition);
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
}

.logo {
  font-family: 'Viga', sans-serif;
}

/* === ENHANCED NAVIGATION WITH ANIMATIONS === */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 30px rgba(0, 0, 0, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.6);
  transition: var(--transition);
  animation: slideDown 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-theme="dark"] header {
  background: rgba(26, 26, 26, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

header.scrolled {
  padding: 0.8rem 2rem;
  box-shadow: 0 5px 35px rgba(0, 0, 0, 0.12);
  background: rgba(255, 255, 255, 0.98);
}

[data-theme="dark"] header.scrolled {
  box-shadow: 0 5px 35px rgba(0, 0, 0, 0.5);
  background: rgba(26, 26, 26, 0.98);
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--darker-gray);
  letter-spacing: 1px;
  position: relative;
  z-index: 1001;
  animation: fadeInLeft 0.8s ease-out 0.2s both;
  text-decoration: none;
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.logo span {
  background: linear-gradient(135deg, var(--darker-gray), #495057);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="dark"] .logo {
  color: var(--text-primary);
}

[data-theme="dark"] .logo span {
  background: linear-gradient(135deg, var(--text-primary), #e9ecef);
}

/* Modern Navigation Links */
.nav-container {
  display: flex;
  align-items: center;
  gap: 2rem;
  animation: fadeInRight 0.8s ease-out 0.3s both;
}

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

.nav-links {
  list-style: none;
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  align-items: center;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border-radius: 50px;
  padding: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .nav-links {
  background: rgba(42, 42, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-links li {
  position: relative;
}

.nav-links a {
  color: var(--darker-gray);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.7rem 1.2rem;
  border-radius: 25px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  font-family: 'Nunito', sans-serif;
}

[data-theme="dark"] .nav-links a {
  color: var(--text-primary);
}

.nav-links a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  transition: left 0.6s ease;
}

.nav-links a:hover::before {
  left: 100%;
}

.nav-links a:hover {
  background: rgba(108, 117, 125, 0.05);
  transform: translateY(-1px);
}

[data-theme="dark"] .nav-links a:hover {
  background: rgba(74, 74, 74, 0.5);
}

.nav-links a.active {
  background: linear-gradient(135deg, var(--medium-gray), var(--dark-gray));
  color: white;
  box-shadow: 0 4px 15px rgba(108, 117, 125, 0.3);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* Modern CTA Buttons */
.nav-cta {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.nav-cta a {
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.7rem 1.5rem;
  border-radius: 25px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  font-family: 'Nunito', sans-serif;
}

.nav-cta a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.6s ease;
}

.nav-cta a:hover::before {
  left: 100%;
}

.nav-cta a.portfolio-btn {
  background: linear-gradient(135deg, var(--dark-gray), var(--darker-gray));
  color: white;
  box-shadow: 0 4px 15px rgba(108, 117, 125, 0.3);
}

.nav-cta a.portfolio-btn:hover {
  background: linear-gradient(135deg, var(--darker-gray), #495057);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(108, 117, 125, 0.4);
}

.nav-cta a.contact-btn {
  background: transparent;
  color: var(--darker-gray);
  border: 2px solid var(--medium-gray);
}

.nav-cta a.contact-btn:hover {
  background: var(--medium-gray);
  color: white;
  transform: translateY(-2px);
  border-color: var(--dark-gray);
}

[data-theme="dark"] .nav-cta a.portfolio-btn {
  background: linear-gradient(135deg, var(--dark-gray), var(--darker-gray));
}

[data-theme="dark"] .nav-cta a.contact-btn {
  color: var(--text-primary);
  border-color: var(--medium-gray);
}

[data-theme="dark"] .nav-cta a.contact-btn:hover {
  background: var(--medium-gray);
}

/* Dark Mode Toggle Button */
.dark-mode-btn {
  background: none;
  border: 2px solid var(--medium-gray);
  color: var(--darker-gray);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

[data-theme="dark"] .dark-mode-btn {
  border-color: var(--medium-gray);
  color: var(--text-primary);
}

.dark-mode-btn:hover {
  background: var(--medium-gray);
  color: white;
}

/* Mobile Navigation Toggle */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  transition: var(--transition);
  position: relative;
}

.mobile-nav-toggle:hover {
  background: rgba(108, 117, 125, 0.1);
  transform: rotate(180deg);
}

.hamburger {
  width: 20px;
  height: 2px;
  background-color: var(--darker-gray);
  position: relative;
  transition: var(--transition);
  margin: 0 auto;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 2px;
  background-color: var(--darker-gray);
  left: 0;
  transition: var(--transition);
}

.hamburger::before { 
  top: -6px; 
  transform-origin: center;
}
.hamburger::after { 
  top: 6px; 
  transform-origin: center;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger { 
  background-color: transparent; 
}
.mobile-nav-toggle[aria-expanded="true"] .hamburger::before { 
  top: 0; 
  transform: rotate(45deg); 
}
.mobile-nav-toggle[aria-expanded="true"] .hamburger::after { 
  top: 0; 
  transform: rotate(-45deg); 
}

[data-theme="dark"] .hamburger,
[data-theme="dark"] .hamburger::before,
[data-theme="dark"] .hamburger::after {
  background-color: var(--text-primary);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Mobile Navigation Menu */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  box-shadow: -5px 0 50px rgba(0, 0, 0, 0.15);
  padding: 6rem 2rem 2rem;
  transition: var(--transition);
  z-index: 999;
  display: flex;
  flex-direction: column;
}

[data-theme="dark"] .mobile-nav {
  background: rgba(42, 42, 42, 0.98);
  box-shadow: -5px 0 50px rgba(0, 0, 0, 0.5);
}

.mobile-nav.active {
  right: 0;
  animation: slideInRight 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes slideInRight {
  from {
    right: -100%;
  }
  to {
    right: 0;
  }
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-nav-links a {
  color: var(--darker-gray);
  text-decoration: none;
  font-size: 1.1rem;
  padding: 1rem;
  border-radius: 10px;
  transition: var(--transition);
  display: block;
  font-family: 'Nunito', sans-serif;
}

[data-theme="dark"] .mobile-nav-links a {
  color: var(--text-primary);
}

.mobile-nav-links a:hover {
  background: var(--light-gray);
  transform: translateX(10px);
}

[data-theme="dark"] .mobile-nav-links a:hover {
  background: var(--light);
}

/* Navigation Overlay */
.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 998;
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Hero Section (Updated for Three.js) */
.hero-section {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 0;
}

#hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1; /* Behind content */
}

.hero-slider {
  position: relative;
  width: 100%;
  height: 100%;
  margin-top: 0;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  /* Removed background gradients; now handled by Three.js */
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  /* Semi-transparent overlay for readability over 3D */
  background: rgba(0, 0, 0, 0.1); /* Optional subtle tint */
}

.hero-slide.active {
  opacity: 1;
}

.hero-content {
  text-align: center;
  color: white;
  max-width: 800px;
  padding: 0 2rem;
  animation: fadeInUp 1s ease-out;
  position: relative;
  z-index: 1; /* Above canvas */
}

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

.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  text-shadow: 0 4px 10px rgba(0,0,0,0.3); /* Enhanced shadow for 3D bg */
}

.hero-content p {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.cta-button {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: linear-gradient(135deg, #ff8fab, rgba(255,255,255,0.4));
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1rem;
  transition: var(--transition);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(102, 126, 234, 0.4);
  background: linear-gradient(135deg, #fb6f92, rgba(255,255,255,0.4));
}

.slider-dots {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 1rem;
  z-index: 1;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: var(--transition);
}

.dot.active {
  background: white;
  transform: scale(1.2);
}

/* Dark mode adjustments for hero */
[data-theme="dark"] .hero-slide {
  background: rgba(0, 0, 0, 0.2);
}

/* General Section Styles */
.section-padding {
  padding: 8rem 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--darker-gray);
}

[data-theme="dark"] .section-header h2 {
  color: var(--text-primary);
}

.section-header p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto;
  opacity: 0.8;
}

/* About Section */
.about-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.mission-vision {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.card {
  background: var(--card-bg);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: left;
}

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

.card h3 {
  color: var(--darker-gray);
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

[data-theme="dark"] .card h3 {
  color: var(--text-primary);
}

/* Solutions Section */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--card-bg);
  padding: 3rem 2rem;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
 background: linear-gradient(135deg, #ff8fab, rgba(255,255,255,0.4));
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
}

.service-card i {
  font-size: 3rem;
  color: #ffb3c6;
  margin-bottom: 1.5rem;
  display: block;
}

.service-card h3 {
  color: var(--darker-gray);
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

[data-theme="dark"] .service-card h3 {
  color: var(--text-primary);
}

/* Process Section */
.process-steps {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  gap: 2rem;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, var(--light-gray), var(--medium-gray));
  z-index: -1;
}

.step-item {
  flex: 1;
  text-align: center;
  position: relative;
}

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #ff8fab, rgba(255,255,255,0.4));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1.5rem;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.step-item h3 {
  color: var(--darker-gray);
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

[data-theme="dark"] .step-item h3 {
  color: var(--text-primary);
}

/* Testimonials Section */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background: var(--card-bg);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 20px;
  font-size: 6rem;
  color: var(--medium-gray);
  opacity: 0.3;
  font-family: serif;
}

.testimonial-card p {
  font-style: italic;
  margin-bottom: 2rem;
  line-height: 1.8;
  font-size: 1.1rem;
}

.author {
  text-align: right;
}

.author h4 {
  color: var(--darker-gray);
  margin-bottom: 0.25rem;
}

[data-theme="dark"] .author h4 {
  color: var(--text-primary);
}

.author span {
  color: var(--dark-gray);
  font-size: 0.9rem;
}

/* Portfolio/Tech Stack Section */
.tech-stack {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.stack-item {
  background: var(--card-bg);
  padding: 1.2rem 2rem;
  border-radius: 50px;
  font-weight: 500;
  color: var(--darker-gray);
  box-shadow: var(--shadow);
  transition: var(--transition);
  white-space: nowrap;
}

.stack-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  background: linear-gradient(135deg, var(--medium-gray), var(--dark-gray));
  color: white;
}

/* CTA Bottom Section */
.cta-bottom-section {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--light) 50%, var(--light-gray) 100%);
  color:  var(--darker-gray);
  text-align: center;
  padding: 6rem 2rem;
  margin: 2rem 0;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  position: relative;
  overflow: hidden;
}

.cta-bottom-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  pointer-events: none;
}

.cta-bottom-section h2 {
  font-size: 2.8rem;
  margin-bottom: 1rem;
}

.cta-bottom-section p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 2000;
  backdrop-filter: blur(5px);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--card-bg);
  padding: 3rem;
  border-radius: var(--border-radius);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9) translateY(20px);
  opacity: 0;
  transition: all 0.3s ease;
  position: relative;
  color: var(--text-primary);
}

.modal-overlay.active .modal-content {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.modal-close-button {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.8rem;
  color: var(--dark-gray);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 50%;
  transition: var(--transition);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2001;
}

[data-theme="dark"] .modal-close-button {
  color: var(--dark-gray);
}

.modal-close-button:hover {
  background: var(--light-gray);
  color: var(--darker-gray);
  transform: rotate(90deg);
}

.modal-content h2 {
  color: var(--darker-gray);
  margin-bottom: 1rem;
  text-align: center;
  font-size: 2.2rem;
  font-weight: 700;
}

[data-theme="dark"] .modal-content h2 {
  color: var(--text-primary);
}

.modal-content p {
  color: var(--dark-gray);
  text-align: center;
  margin-bottom: 2rem;
  font-size: 1.1rem;
  line-height: 1.6;
}

[data-theme="dark"] .modal-content p {
  color: var(--dark-gray);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-form label {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--darker-gray);
  margin-bottom: 0.5rem;
  transition: var(--transition);
}

[data-theme="dark"] .contact-form label {
  color: var(--text-primary);
}

.contact-form input:focus + label,
.contact-form textarea:focus + label {
  color: var(--medium-gray);
}

.input-group {
  position: relative;
  margin-bottom: 0.5rem;
}

.input-group .icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--dark-gray);
  transition: var(--transition);
  z-index: 1;
}

.input-group:focus-within .icon {
  color: var(--darker-gray);
  transform: translateY(-50%) scale(1.1);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 1rem 1rem 1rem 3rem;
  border: 2px solid var(--light-gray);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--darker-gray);
  font-family: 'Raleway', sans-serif;
  font-size: 1rem;
  transition: var(--transition);
  resize: vertical;
}

[data-theme="dark"] .contact-form input,
[data-theme="dark"] .contact-form textarea {
  background: rgba(42, 42, 42, 0.9);
  border-color: var(--light-gray);
  color: var(--text-primary);
}

.contact-form textarea {
  padding-left: 1rem;
  min-height: 120px;
  padding-top: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--medium-gray);
  background: white;
  box-shadow: 0 0 0 3px rgba(206, 212, 218, 0.3);
  transform: translateY(-2px);
}

[data-theme="dark"] .contact-form input:focus,
[data-theme="dark"] .contact-form textarea:focus {
  background: var(--card-bg);
  box-shadow: 0 0 0 3px rgba(74, 74, 74, 0.3);
}

/* Error border state */
.contact-form input.error,
.contact-form textarea.error {
  border-color: #dc3545;
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.2);
}

/* Success state for fields after validation */
.contact-form input.success,
.contact-form textarea.success {
  border-color: #28a745;
  box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.2);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--dark-gray);
  opacity: 0.7;
}

.modal-submit-button {
  margin-top: 1rem;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--medium-gray), var(--dark-gray));
  color: white;
  border: none;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Nunito', sans-serif;
  position: relative;
  overflow: hidden;
}

.modal-submit-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.modal-submit-button:hover::before {
  left: 100%;
}

.modal-submit-button:hover {
  background: linear-gradient(135deg, var(--dark-gray), var(--darker-gray));
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(108, 117, 125, 0.3);
}

.form-message {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 10px;
  font-weight: 600;
  text-align: center;
  transition: var(--transition);
  animation: slideInUp 0.5s ease-out;
  font-family: 'Nunito', sans-serif;
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.form-message.success {
  background: rgba(144, 238, 144, 0.2);
  color: #2e8b57;
  border: 1px solid rgba(144, 238, 144, 0.3);
}

.form-message.error {
  background: rgba(255, 107, 107, 0.2);
  color: #dc3545;
  border: 1px solid rgba(255, 107, 107, 0.3);
}

.error-message {
  display: block;
  font-size: 0.85rem;
  color: #dc3545;
  margin-top: 0.25rem;
  min-height: 1.2em;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.error-message.show {
  opacity: 1;
}

.char-count {
  display: block;
  font-size: 0.8rem;
  color: var(--dark-gray);
  text-align: right;
  margin-top: 0.25rem;
  transition: color 0.3s ease;
}

.char-count.warning {
  color: #ffc107;
}

.char-count.danger {
  color: #dc3545;
}

/* Multi-Step Form Styles */
.multi-step-form .step {
  display: none;
}

.multi-step-form .step.active {
  display: block;
}

.step-buttons {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-top: 1rem;
}

.next-step, .prev-step, .submit-step {
  padding: 0.8rem 1.5rem;
  border: 2px solid var(--medium-gray);
  background: transparent;
  color: var(--darker-gray);
  border-radius: 25px;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Nunito', sans-serif;
}

.submit-step {
  background: linear-gradient(135deg, var(--medium-gray), var(--dark-gray));
  color: white;
  border: none;
}

[data-theme="dark"] .next-step, [data-theme="dark"] .prev-step, [data-theme="dark"] .submit-step {
  color: var(--text-primary);
}

.next-step:hover, .prev-step:hover {
  background: var(--medium-gray);
  color: white;
}

.submit-step:hover {
  background: linear-gradient(135deg, var(--dark-gray), var(--darker-gray));
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(108, 117, 125, 0.3);
}

.review-summary {
  background: var(--light);
  padding: 1rem;
  border-radius: 10px;
  margin: 1rem 0;
  font-size: 0.9rem;
}

[data-theme="dark"] .review-summary {
  background: var(--light);
}

.optional {
  color: var(--dark-gray);
  font-size: 0.8rem;
}

/* Alt Contacts */
.alt-contacts {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--light-gray);
  text-align: center;
}

[data-theme="dark"] .alt-contacts {
  border-top-color: var(--light-gray);
}

.alt-contacts ul {
  list-style: none;
  padding: 0;
}

.alt-contacts li {
  margin: 0.5rem 0;
}

.alt-contacts a {
  color: var(--darker-gray);
  text-decoration: none;
}

[data-theme="dark"] .alt-contacts a {
  color: var(--text-primary);
}

.alt-contacts a:hover {
  text-decoration: underline;
}

/* Focus Visible for Accessibility */
*:focus-visible {
  outline: 2px solid var(--medium-gray);
  outline-offset: 2px;
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: linear-gradient(135deg, var(--medium-gray), var(--dark-gray));
  color: white;
  border: none;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  box-shadow: var(--shadow);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  animation: bounceIn 0.6s ease-out;
}

.back-to-top:hover {
  transform: translateY(-3px) scale(1.1);
  box-shadow: var(--shadow-hover);
  animation: bounce 0.6s ease infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(-3px) scale(1.1); }
  50% { transform: translateY(-6px) scale(1.1); }
}

@keyframes bounceIn {
  0% {
    transform: scale(0.3);
    opacity: 0;
  }
  50% {
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Loading Animation */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-right: 10px;
}

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

/* Scroll Animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* Footer */
.footer {
  background: var(--bg-primary);
  color: var(--darker-gray);
  text-align: center;
  padding: 2rem 0;
  font-size: 0.9rem;
}

[data-theme="dark"] .footer {
  background: var(--darker-gray);
}

.footer .container {
  padding: 0 2rem;
}

/* Ripple Effect */
.ripple-btn {
  position: relative;
  overflow: hidden;
}

.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  transform: scale(0);
  animation: ripple-animation 0.6s linear;
}

@keyframes ripple-animation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

[data-theme="dark"] .ripple {
  background: rgba(0, 0, 0, 0.6);
}

/* Personalized Greeting */
.greeting {
  position: fixed;
  top: 100px;
  right: 20px;
  background: var(--card-bg);
  padding: 1rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 1001;
  font-family: 'Nunito', sans-serif;
  font-weight: 600;
}

.greeting.show {
  opacity: 1;
}

[data-theme="dark"] .greeting {
  color: var(--text-primary);
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 1024px) {
  .nav-links {
    gap: 0.25rem;
  }
  
  .nav-links a {
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
  }
  
  .nav-cta {
    gap: 0.75rem;
  }
  
  .nav-cta a {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
  }

  .process-steps {
    flex-direction: column;
    gap: 3rem;
  }

  .process-steps::before {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-container {
    display: none;
  }
  
  .mobile-nav-toggle {
    display: block;
  }
  
  header {
    padding: 1rem 1.5rem;
  }
  
  header.scrolled {
    padding: 0.8rem 1.5rem;
  }
  
  .hero-section {
    height: 100vh;
    margin-top: 70px;
  }
  
  .hero-content h1 {
    font-size: 2.5rem;
  }

  .section-header h2 {
    font-size: 2.2rem;
  }
  
  .service-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .process-steps {
    flex-direction: column;
    gap: 3rem;
  }

  .process-steps::before {
    display: none;
  }

  .section-padding {
    padding: 5rem 0;
  }

  .cta-bottom-section {
    margin: 1rem;
    padding: 3rem 1.5rem;
  }

  .modal-content {
    padding: 2rem 1.5rem;
    margin: 1rem;
  }

  .modal-content h2 {
    font-size: 1.8rem;
  }

  .step {
    max-width: 300px;
    margin: 0 auto;
  }
}

@media (max-width: 480px) {
  .logo {
    font-size: 1.5rem;
  }
  
  .mobile-nav {
    max-width: 100%;
    padding: 5rem 1.5rem 2rem;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .hero-content p {
    font-size: 1.1rem;
  }

  .section-header h2 {
    font-size: 1.8rem;
  }

  .service-card {
    padding: 2rem 1.5rem;
  }

  .stack-item {
    padding: 1rem 1.5rem;
    font-size: 1rem;
  }

  .modal-content {
    padding: 1.5rem 1rem;
  }

  .contact-form input,
  .contact-form textarea {
    padding: 0.8rem 0.8rem 0.8rem 2.5rem;
  }

  .input-group .icon {
    left: 0.8rem;
  }

  .cta-bottom-section h2 {
    font-size: 2rem;
  }

  .alt-contacts ul {
    text-align: left;
  }

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

  .slider-dots {
    bottom: 2rem;
  }
}

/* Add to existing mobile-nav styles */
.mobile-nav-cta {
    margin-top: auto;
    padding: 2rem;
    display: flex;
    justify-content: center;
    border-top: 1px solid var(--light-gray);
}

[data-theme="dark"] .mobile-nav-cta {
    border-top-color: var(--light-gray);
}

/* Fix for step buttons visibility */
.step-buttons {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin-top: 2rem;
}

.step-buttons button {
    padding: 0.8rem 1.5rem;
    border: 2px solid var(--medium-gray);
    background: transparent;
    color: var(--darker-gray);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Nunito', sans-serif;
    font-weight: 600;
}

.step-buttons .submit-step {
    background: linear-gradient(135deg, var(--medium-gray), var(--dark-gray));
    color: white;
    border: none;
}

[data-theme="dark"] .step-buttons button {
    color: var(--text-primary);
}

.step-buttons button:hover:not(:disabled) {
    background: var(--medium-gray);
    color: white;
    transform: translateY(-2px);
}

.step-buttons .submit-step:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--dark-gray), var(--darker-gray));
    box-shadow: 0 8px 25px rgba(108, 117, 125, 0.3);
}

.step-buttons button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Ensure proper step display */
.multi-step-form .step {
    display: none;
}

.multi-step-form .step.active {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

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

/* Fix input focus states */
.input-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.input-group.focused label {
    color: var(--medium-gray);
    transform: translateY(-20px) scale(0.85);
}

.input-group input:focus + label,
.input-group textarea:focus + label,
.input-group input:not(:placeholder-shown) + label,
.input-group textarea:not(:placeholder-shown) + label {
    color: var(--medium-gray);
    transform: translateY(-20px) scale(0.85);
}

.input-group label {
    position: absolute;
    left: 3rem;
    top: 1rem;
    color: var(--dark-gray);
    transition: var(--transition);
    pointer-events: none;
    background: var(--card-bg);
    padding: 0 0.5rem;
    margin-left: -0.5rem;
}

[data-theme="dark"] .input-group label {
    background: var(--card-bg);
}

.input-group textarea + label {
    left: 1rem;
}