:root {
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --secondary-color: #f59e0b;
  --accent-color: #10b981;
  
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  
  --border-color: #e2e8f0;
  --shadow-light: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-large: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  --font-primary: 'Inter', sans-serif;
  --font-heading: 'Poppins', sans-serif;
  
  --container-max-width: 1200px;
  --section-padding: 5rem 0;
  --element-spacing: 2rem;
}

/* Modal styles for demo video */
.modal {
  display: none;
  position: fixed;
  z-index: 1500;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
}

.modal[aria-hidden="false"] {
  display: flex;
}

.modal-content {
  background-color: var(--bg-primary);
  margin: auto;
  padding: 1.5rem;
  border-radius: 12px;
  max-width: 700px;
  width: 90%;
  box-shadow: var(--shadow-large);
  position: relative;
}

.modal-close {
  position: absolute;
  top: 0.5rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.3s ease;
}

.modal-close:hover {
  color: var(--primary-color);
}

.video-container {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
  border-radius: 12px;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--bg-primary);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all 0.3s ease;
}

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

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--primary-color);
}

.logo-icon {
  font-size: 1.5rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

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

.theme-toggle {
  background: none;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  border-color: var(--primary-color);
  transform: scale(1.1);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--text-primary);
  transition: all 0.3s ease;
}

.hero {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  overflow: hidden;
}

.hero-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

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

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

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

.btn {
  padding: 1rem 2rem;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

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

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
}

.btn-full {
  width: 100%;
}

.hero-stats {
  display: flex;
  gap: 2rem;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  font-family: var(--font-heading);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.watch-mockup {
  position: relative;
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, #1f2937, #374151);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-large);
  animation: float 3s ease-in-out infinite;
}

.watch-screen {
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, #111827, #1f2937);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 4px solid #374151;
}

.watch-face {
  text-align: center;
  color: white;
}

.time {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  font-family: var(--font-heading);
}

.stats-mini {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stat-mini {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.875rem;
}

section {
  padding: var(--section-padding);
}

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

.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.section-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

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

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

.feature-card {
  background-color: var(--bg-primary);
  padding: 2rem;
  border-radius: 16px;
  text-align: center;
  box-shadow: var(--shadow-light);
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

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

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

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

.testimonial-card {
  background-color: var(--bg-primary);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow-light);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

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

.testimonial-content {
  margin-bottom: 1.5rem;
}

.stars {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.testimonial-text {
  color: var(--text-secondary);
  line-height: 1.6;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.author-name {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.author-title {
  color: var(--text-muted);
  font-size: 0.875rem;
}

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

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-info .section-title,
.contact-info .section-description {
  text-align: left;
}

.contact-details {
  margin-top: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background-color: var(--primary-color);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.contact-text h4 {
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.contact-text p {
  color: var(--text-secondary);
}

 .contact-form{
  background-color: var(--bg-primary);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow-light);
  border: 2px solid var(--border-color);
  /* border: 2px solid rgb(138, 155, 230); */
  
} 


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

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

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

.footer {
  background-color: var(--bg-tertiary);
  padding: 3rem 0 1rem;
  border-top: 1px solid var(--border-color);
}

.footer-content {
  text-align: center;
  margin-bottom: 2rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.footer-text {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.875rem;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

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

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

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

.animate-fade-in {
  animation: fadeInUp 0.8s ease-out;
}

.animate-fade-in-delay {
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.animate-fade-in-delay-2 {
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.animate-fade-in-delay-3 {
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.animate-slide-in {
  animation: fadeInRight 1s ease-out 0.3s both;
}

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

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

/* Responsive Design - Mobile ke liye */

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--bg-primary);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: 2rem;
    transition: left 0.3s ease;
    border-top: 1px solid var(--border-color);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .hamburger {
    display: flex;
  }
  
  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .watch-mockup {
    width: 250px;
    height: 250px;
  }
  
  .watch-screen {
    width: 170px;
    height: 170px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-links {
    flex-direction: column;
    gap: 1rem;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .hero-title {
    font-size: 3rem;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1025px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) {
  .hero-title {
    font-size: 4rem;
  }
  
  .section-title {
    font-size: 3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .watch-mockup {
    animation: none;
  }
}

@media (prefers-contrast: high) {
  :root {
    --border-color: #000000;
    --shadow-light: 0 1px 3px 0 rgba(0, 0, 0, 0.5);
    --shadow-medium: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --shadow-large: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
  }
}

@media print {
  .navbar,
  .theme-toggle,
  .hamburger,
  .hero-buttons,
  .contact-form {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .hero {
    padding: 2rem 0;
  }
  
  section {
    padding: 2rem 0;
  }
}

/* Dark theme styles */
[data-theme="dark"] {
  --primary-color: #8b5cf6;
  --primary-dark: #7c3aed;
  --secondary-color: #fbbf24;
  --accent-color: #22c55e;

  --bg-primary: #1e293b;
  --bg-secondary: #334155;
  --bg-tertiary: #475569;

  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;

  --border-color: #475569;
  --shadow-light: 0 1px 3px 0 rgba(255, 255, 255, 0.1);
  --shadow-medium: 0 4px 6px -1px rgba(255, 255, 255, 0.1);
  --shadow-large: 0 20px 25px -5px rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

[data-theme="dark"] .navbar {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  box-shadow: none;
}

[data-theme="dark"] .nav-link {
  color: var(--text-secondary);
}

[data-theme="dark"] .nav-link:hover {
  color: var(--primary-color);
}

[data-theme="dark"] .theme-toggle {
  border-color: var(--border-color);
}

[data-theme="dark"] .theme-toggle:hover {
  border-color: var(--primary-color);
}

[data-theme="dark"] .feature-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  box-shadow: none;
  color: var(--text-primary);
}

[data-theme="dark"] .testimonial-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  box-shadow: none;
  color: var(--text-primary);
}

[data-theme="dark"] .contact {
  background-color: var(--bg-secondary);
}

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

[data-theme="dark"] .footer {
  background-color: var(--bg-tertiary);
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
}

[data-theme="dark"] .footer-link {
  color: var(--text-secondary);
}

[data-theme="dark"] .footer-link:hover {
  color: var(--primary-color);
}

.form-status {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  color: white;
  animation: fadeInUp 0.3s ease-out;
}

.form-status.success {
  background-color: #10b981; 
  border: 1px solid #059669;
}

.form-status.error {
  background-color: #ef4444; 
  border: 1px solid #b91c1c;
}

.form-status.info {
  background-color: #3b82f6; 
  border: 1px solid #2563eb;
}

/* Responsive Design - Mobile ke liye */

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--bg-primary);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: 2rem;
    transition: left 0.3s ease;
    border-top: 1px solid var(--border-color);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .hamburger {
    display: flex;
  }
  
  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .watch-mockup {
    width: 250px;
    height: 250px;
  }
  
  .watch-screen {
    width: 170px;
    height: 170px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-links {
    flex-direction: column;
    gap: 1rem;
  }
  
  /* Responsive image styles */
  img {
    max-width: 100%;
    height: auto;
    display: block;
  }
  
  .privacy-section,
  .support-section,
  .step {
    flex-direction: column;
    align-items: center;
  }
  
  .privacy-image,
  .support-image,
  .step img {
    max-width: 90%;
    height: auto;
  }
}