/* CSS Variables */
:root {
  --color-primary: #7c3aed;
  --color-primary-dark: #6d28d9;
  --color-primary-light: #a78bfa;
  --color-secondary: #64748b;
  --color-success: #059669;
  --color-warning: #f59e0b;
  --color-blue: #2563eb;
  
  --color-bg: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-tertiary: #f1f5f9;
  --color-bg-card: #ffffff;
  --color-text: #0f172a;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;
  --color-border: #e2e8f0;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;
    --color-bg-card: #1e293b;
    --color-text: #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    --color-border: #334155;
  }
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  transition: all 0.3s ease;
}

.nav.scrolled {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-icon {
  width: 2.25rem;
  height: 2.25rem;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.125rem;
}

.logo-text {
  color: var(--color-text);
}

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

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}

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

.nav-cta {
  background: var(--color-primary) !important;
  color: white !important;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-lg);
  transition: all 0.2s ease !important;
}

.nav-cta:hover {
  background: var(--color-primary-dark) !important;
  transform: translateY(-1px);
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  padding: 0.5rem;
}

/* Hero Section */
.hero {
  padding: 8rem 0 5rem;
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: 2rem;
  margin-bottom: 1.5rem;
}

.badge-dot {
  width: 0.5rem;
  height: 0.5rem;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  max-width: 500px;
}

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

.hero-trust {
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.hero-trust p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.trust-logos {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.trust-logos span {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  padding: 0.375rem 0.75rem;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
}

/* Phone Mockup */
.hero-visual {
  display: flex;
  justify-content: center;
}

.phone-mockup {
  width: 280px;
  height: 560px;
  background: var(--color-text);
  border-radius: 40px;
  padding: 12px;
  box-shadow: var(--shadow-xl);
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: var(--color-bg-card);
  border-radius: 32px;
  overflow: hidden;
}

.app-preview {
  padding: 1rem;
}

.app-header {
  height: 3rem;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

.app-card {
  height: 5rem;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
}

.app-card.short {
  height: 3rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 4px 14px 0 rgba(124, 58, 237, 0.35);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(124, 58, 237, 0.4);
}

.btn-secondary {
  background: var(--color-bg-card);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

.btn-white:hover {
  background: var(--color-bg-secondary);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

.btn-full {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Section Styles */
.section-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--color-text-secondary);
  font-size: 1.0625rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Services Section */
.services {
  padding: 6rem 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  transition: all 0.3s ease;
}

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

.service-icon {
  width: 3rem;
  height: 3rem;
  background: var(--color-bg-secondary);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.service-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.service-card p {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.service-list li {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.375rem;
  display: flex;
  align-items: flex-start;
  gap: 0.375rem;
}

.service-list li::before {
  content: "✓";
  color: var(--color-success);
  font-weight: 600;
  flex-shrink: 0;
}

/* Technologies Section */
.technologies {
  padding: 6rem 0;
  background: var(--color-bg-secondary);
}

.tech-categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.tech-category h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tech-items {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tech-item {
  padding: 0.75rem 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.tech-item:hover {
  border-color: var(--color-primary);
  transform: translateX(4px);
}

.tech-name {
  font-size: 0.9375rem;
  font-weight: 500;
}

/* Portfolio Section */
.portfolio {
  padding: 6rem 0;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.portfolio-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all 0.3s ease;
}

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

.portfolio-coming {
  opacity: 0.75;
}

.portfolio-coming:hover {
  transform: none;
  box-shadow: none;
}

.portfolio-image {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portfolio-content {
  padding: 1.5rem;
}

.portfolio-type {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.portfolio-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0.5rem 0;
}

.portfolio-content p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
}

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

.portfolio-tech span {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.625rem;
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
}

.portfolio-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: gap 0.2s ease;
}

.portfolio-link:hover {
  gap: 0.625rem;
}

.portfolio-status {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

/* Process Section */
.process {
  padding: 6rem 0;
  background: var(--color-bg-secondary);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.process-step {
  position: relative;
}

.step-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: 1rem;
}

.step-content h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.step-content p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

/* CTA Section */
.cta-section {
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.cta-content {
  text-align: center;
  color: white;
}

.cta-content h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.cta-content p {
  font-size: 1.0625rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* Contact Section */
.contact {
  padding: 6rem 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}

.contact-info p {
  color: var(--color-text-secondary);
  font-size: 1.0625rem;
  margin-bottom: 2rem;
}

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

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

.contact-icon {
  width: 3rem;
  height: 3rem;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.125rem;
}

.contact-item p,
.contact-item a {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

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

/* Contact Form */
.contact-form-container {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2rem;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.875rem 1rem;
  font-size: 0.9375rem;
  font-family: inherit;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

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

.contact-form .btn {
  grid-column: span 2;
  margin-top: 0.5rem;
}

.form-note {
  grid-column: span 2;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* Form Success */
.form-success {
  text-align: center;
  padding: 3rem 2rem;
}

.success-icon {
  color: var(--color-success);
  margin-bottom: 1.5rem;
}

.form-success h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.form-success p {
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}

/* Footer */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: 4rem 0 2rem;
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  max-width: 280px;
}

.footer-brand .nav-logo {
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

.footer-links-group h4 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.footer-links-group ul {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-links-group a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}

.footer-links-group a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}

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

/* Responsive */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .hero-trust {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .hero-visual {
    display: none;
  }
  
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tech-categories {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-main {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 1rem;
    gap: 0.5rem;
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .nav-links a {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
  }
  
  .nav-links a:hover {
    background: var(--color-bg-secondary);
  }
  
  .nav-cta {
    text-align: center;
  }
  
  .nav-mobile-toggle {
    display: block;
  }
  
  .hero {
    padding: 6rem 0 3rem;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .process-steps {
    grid-template-columns: 1fr;
  }
  
  .contact-form {
    grid-template-columns: 1fr;
  }
  
  .form-group.full-width {
    grid-column: span 1;
  }
  
  .contact-form .btn {
    grid-column: span 1;
  }
  
  .form-note {
    grid-column: span 1;
  }
  
  .footer-main {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-brand {
    max-width: 100%;
  }
  
  .footer-brand .nav-logo {
    justify-content: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .tech-categories {
    grid-template-columns: 1fr;
  }
  
  .trust-logos {
    justify-content: center;
  }
}