/* Deveint Ltd - Landing Page Styles */

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

:root {
  /* Deveint color scheme - from logo */
  --deveint-navy: #2B4162;
  --deveint-orange: #C66B3D;
  --deveint-charcoal: #1E3048;
  
  /* Light surfaces for contrast */
  --surface-light: #F5F7FA;
  --surface-light-foreground: #1E3048;
  --surface-light-muted: #64748B;
  
  /* Dark surfaces */
  --background: #152638;
  --foreground: #FAFAFA;
  --card: #1E3048;
  --card-foreground: #FAFAFA;
  --border: #2B4162;
  --muted: #2B4162;
  --muted-foreground: #B8C5D6;
  --primary: #2B4162;
  --primary-foreground: #FFFFFF;
  --accent: #C66B3D;
  --accent-foreground: #FFFFFF;
  
  /* CTA - bright orange for action buttons */
  --cta: #D97A4A;
  --cta-hover: #E08A5C;
  --cta-foreground: #FFFFFF;
  
  /* Gradients - navy to orange */
  --gradient-start: #3A5578;
  --gradient-end: #C66B3D;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Poppins', var(--font-sans);
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
}

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

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

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(21, 38, 56, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(43, 65, 98, 0.3);
  transition: background-color 0.3s ease;
}

.nav.scrolled {
  background: rgba(10, 14, 39, 0.95);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4.5rem;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (min-width: 768px) {
  .nav-container {
    padding: 0 2rem;
  }
}

.nav-logo {
  height: 2.25rem;
  width: auto;
}

.nav-links {
  display: none;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: #fff;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #fff;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: transparent;
  border: none;
  cursor: pointer;
  color: #fff;
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 4.5rem;
  left: 0;
  right: 0;
  background: rgba(10, 14, 39, 0.98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}

.mobile-menu.open {
  display: block;
}

.mobile-menu-link {
  display: block;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.mobile-menu-link:hover {
  color: #fff;
  background: rgba(99, 102, 241, 0.1);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 0 4rem;
  background: linear-gradient(135deg, var(--deveint-navy) 0%, #0F1235 50%, var(--deveint-navy) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 30% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 9999px;
  font-size: 0.875rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: #fff;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.5rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 4.5rem;
  }
}

.gradient-text {
  background: linear-gradient(135deg, var(--deveint-orange), #E08A5C);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .hero-description {
    font-size: 1.25rem;
  }
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.btn-primary {
  color: var(--cta-foreground);
  background: var(--cta);
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: var(--cta-hover);
  transform: translateY(-1px);
}

.btn-outline {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* Services Section */
.services {
  padding: 6rem 0;
  background: var(--surface-light);
  color: var(--surface-light-foreground);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.75rem;
  background: rgba(43, 65, 98, 0.1);
  border: 1px solid rgba(43, 65, 98, 0.2);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--deveint-navy);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--deveint-navy);
}

.dark-section .section-title {
  color: #fff;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.5rem;
  }
}

.section-description {
  font-size: 1.125rem;
  color: var(--surface-light-muted);
  line-height: 1.7;
}

.dark-section .section-description {
  color: var(--muted-foreground);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  position: relative;
  padding: 2rem;
  background: #FFFFFF;
  border: 1px solid rgba(43, 65, 98, 0.15);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(43, 65, 98, 0.1);
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  background: var(--deveint-navy);
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
}

.service-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: #fff;
}

.service-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--deveint-navy);
}

.service-description {
  font-size: 0.9375rem;
  color: var(--surface-light-muted);
  line-height: 1.6;
}

/* About Section */
.about {
  padding: 6rem 0;
  background: var(--deveint-charcoal);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .about-content {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
}

.about-text h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: #fff;
}

@media (min-width: 768px) {
  .about-text h2 {
    font-size: 2.5rem;
  }
}

.about-text p {
  font-size: 1.0625rem;
  color: var(--muted-foreground);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

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

.stat-item {
  text-align: center;
  padding: 1.5rem;
  background: rgba(198, 107, 61, 0.1);
  border: 1px solid rgba(198, 107, 61, 0.25);
  border-radius: var(--radius-lg);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--deveint-orange);
  margin-bottom: 0.25rem;
}

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

.about-visual {
  position: relative;
  padding: 2rem;
}

.about-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2rem;
}

.about-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.about-card-dot {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
}

.about-card-dot.red { background: #EF4444; }
.about-card-dot.yellow { background: #F59E0B; }
.about-card-dot.green { background: #10B981; }

.about-code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.about-code .keyword { color: #C084FC; }
.about-code .function { color: #60A5FA; }
.about-code .string { color: #34D399; }
.about-code .comment { color: #6B7280; }

.code-line {
  margin-bottom: 0.375rem;
}

/* Contact Section */
.contact {
  padding: 6rem 0;
  background: var(--background);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 1024px) {
  .contact-content {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
}

.contact-info h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #fff;
}

@media (min-width: 768px) {
  .contact-info h2 {
    font-size: 2.5rem;
  }
}

.contact-info > p {
  font-size: 1.0625rem;
  color: var(--muted-foreground);
  line-height: 1.7;
  margin-bottom: 2rem;
}

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

.contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: rgba(99, 102, 241, 0.1);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.contact-icon svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--primary);
}

.contact-detail h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.25rem;
}

.contact-detail p {
  font-size: 0.9375rem;
  color: var(--muted-foreground);
}

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

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: #fff;
  margin-bottom: 0.5rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: var(--font-sans);
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--muted-foreground);
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.form-error {
  font-size: 0.875rem;
  color: #EF4444;
  margin-top: 0.375rem;
}

.form-submit {
  width: 100%;
  padding: 0.875rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  color: #fff;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.form-submit:hover:not(:disabled) {
  opacity: 0.9;
  transform: translateY(-1px);
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-success {
  padding: 1rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-md);
  color: var(--accent);
  text-align: center;
  margin-bottom: 1rem;
}

/* Footer */
.footer {
  background: var(--deveint-charcoal);
  border-top: 1px solid rgba(99, 102, 241, 0.2);
  padding: 4rem 0 2rem;
}

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

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr repeat(3, 1fr);
  }
}

.footer-brand {
  grid-column: span 2;
}

@media (min-width: 1024px) {
  .footer-brand {
    grid-column: span 1;
  }
}

.footer-logo {
  height: 2.5rem;
  width: auto;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
  max-width: 280px;
  margin-bottom: 1.5rem;
}

.social-links {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease;
}

.social-link:hover {
  background: rgba(255, 255, 255, 0.2);
}

.social-link svg {
  width: 1rem;
  height: 1rem;
  color: #fff;
}

.footer-column h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: #fff;
}

.footer-address {
  font-style: normal;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

.footer-address p {
  margin: 0 0 0.25rem 0;
}

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

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

.footer-copyright {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

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

.footer-legal a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.2s ease;
}

.footer-legal a:hover {
  color: #fff;
}

/* Animations */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fade-in-up 0.6s ease-out forwards;
}

.animate-delay-1 { animation-delay: 0.1s; opacity: 0; }
.animate-delay-2 { animation-delay: 0.2s; opacity: 0; }
.animate-delay-3 { animation-delay: 0.3s; opacity: 0; }
.animate-delay-4 { animation-delay: 0.4s; opacity: 0; }
.animate-delay-5 { animation-delay: 0.5s; opacity: 0; }
.animate-delay-6 { animation-delay: 0.6s; opacity: 0; }

/* Utility Classes */
.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;
}