/* CSS Variables - exact navy rgb(18,35,52) */
:root {
  --background: #fafbfc;
  --foreground: #122334;
  --card: #ffffff;
  --card-foreground: #122334;
  --primary: #122334;
  --primary-foreground: #fafafa;
  --secondary: #5a6b7c;
  --secondary-foreground: #fafafa;
  --muted: #f0f2f5;
  --muted-foreground: #4a5a6a;
  --border: #d9dfe7;
  --input: #e7ebf0;
  --ring: #1e3346;
  --radius: 0.5rem;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.6;
}

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

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

ul {
  list-style: none;
}

.hidden {
  display: none !important;
}

/* Container */
.container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 2rem;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-sans);
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background-color: rgba(18, 35, 52, 0.9);
}

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

.btn-white:hover {
  background-color: rgba(255, 255, 255, 0.9);
}

.btn-outline-light {
  background-color: transparent;
  border-color: rgba(248, 248, 248, 0.3);
  color: var(--primary-foreground);
}

.btn-outline-light:hover {
  background-color: rgba(248, 248, 248, 0.1);
}

.btn-full {
  width: 100%;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background-color: rgba(248, 249, 252, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .header-container {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .header-container {
    padding: 0 2rem;
  }
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-text {
  display: none;
}

@media (min-width: 640px) {
  .logo-text {
    display: block;
  }
}

.logo-title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--foreground);
  display: block;
}

.logo-subtitle {
  font-size: 0.75rem;
  color: var(--muted-foreground);
  letter-spacing: 0.05em;
  display: block;
}

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

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

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted-foreground);
  transition: color 0.2s ease;
}

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

.mobile-menu-btn {
  display: flex;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
}

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

.mobile-nav {
  background-color: var(--background);
  border-top: 1px solid var(--border);
}

@media (min-width: 768px) {
  .mobile-nav {
    display: none !important;
  }
}

.mobile-nav-content {
  display: flex;
  flex-direction: column;
  padding: 1rem;
  gap: 1rem;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--primary);
}

.hero-grid-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 4rem 4rem;
}

.hero-container {
  position: relative;
  z-index: 10;
  max-width: 80rem;
  margin: 0 auto;
  padding: 8rem 1rem;
  text-align: center;
}

@media (min-width: 640px) {
  .hero-container {
    padding: 8rem 1.5rem;
  }
}

@media (min-width: 1024px) {
  .hero-container {
    padding: 8rem 2rem;
  }
}

.hero-logo {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
}

.hero-logo-img {
  border-radius: 0.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--primary-foreground);
  margin-bottom: 1.5rem;
  text-wrap: balance;
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 3rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 3.75rem;
  }
}

.hero-title-accent {
  display: block;
  color: var(--secondary);
  margin-top: 0.5rem;
}

.hero-description {
  max-width: 42rem;
  margin: 0 auto 2.5rem;
  font-size: 1.125rem;
  color: rgba(248, 248, 248, 0.8);
  text-wrap: pretty;
}

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

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

.hero-stats {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(248, 248, 248, 0.1);
}

.hero-stats-label {
  font-size: 0.875rem;
  color: rgba(248, 248, 248, 0.6);
  margin-bottom: 1rem;
}

.hero-stats-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  color: rgba(248, 248, 248, 0.8);
}

.stat-item {
  text-align: center;
}

.stat-value {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.875rem;
  font-weight: 700;
}

.stat-label {
  font-size: 0.875rem;
  color: rgba(248, 248, 248, 0.6);
}

.stat-divider {
  width: 1px;
  height: 3rem;
  background-color: rgba(248, 248, 248, 0.2);
}

/* Section Styles */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--foreground);
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

@media (min-width: 640px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.section-title.text-left {
  text-align: left;
}

.section-description {
  max-width: 42rem;
  margin: 0 auto;
  color: var(--muted-foreground);
  text-wrap: pretty;
}

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

.services-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: box-shadow 0.3s ease;
}

.service-card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.service-card:hover .service-icon-wrapper {
  background-color: rgba(18, 35, 52, 0.2);
}

.service-card-header {
  padding: 1.5rem 1.5rem 0;
}

.service-icon-wrapper {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 0.5rem;
  background-color: rgba(18, 35, 52, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  transition: background-color 0.2s ease;
}

.service-icon {
  color: var(--primary);
}

.service-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--card-foreground);
  margin-bottom: 0.5rem;
}

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

.service-card-content {
  padding: 1rem 1.5rem 1.5rem;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service-features li {
  display: flex;
  align-items: center;
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.feature-dot {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background-color: var(--secondary);
  margin-right: 0.75rem;
  flex-shrink: 0;
}

.services-cta {
  margin-top: 3rem;
  text-align: center;
}

/* About */
.about {
  padding: 6rem 0;
  background-color: rgba(240, 241, 245, 0.3);
}

.about-grid {
  display: grid;
  gap: 4rem;
  align-items: center;
}

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

.about-content .section-label {
  display: block;
  text-align: left;
}

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

.about-text {
  color: var(--muted-foreground);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.about-text:last-of-type {
  margin-bottom: 2rem;
}

.values-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.value-icon {
  color: var(--secondary);
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.value-item span {
  font-size: 0.875rem;
  color: var(--foreground);
}

.about-card-wrapper {
  position: relative;
}

.about-card {
  background-color: var(--primary);
  border-radius: 1rem;
  padding: 2rem;
  position: relative;
  z-index: 1;
}

@media (min-width: 1024px) {
  .about-card {
    padding: 3rem;
  }
}

.about-card-content {
  text-align: center;
}

.about-card-icon {
  width: 6rem;
  height: 6rem;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-card-icon span {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--primary-foreground);
}

.about-card-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-foreground);
  margin-bottom: 1rem;
}

.about-card-text {
  color: rgba(248, 248, 248, 0.8);
  line-height: 1.7;
}

.about-card-shadow {
  position: absolute;
  bottom: -1rem;
  right: -1rem;
  width: 100%;
  height: 100%;
  background-color: rgba(92, 101, 128, 0.2);
  border-radius: 1rem;
  z-index: 0;
}

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

.contact-grid {
  display: grid;
  gap: 3rem;
}

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

.contact-info-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: 1.5rem;
}

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

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

.contact-item-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  background-color: rgba(18, 35, 52, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary);
}

.contact-item-title {
  font-weight: 500;
  color: var(--foreground);
}

.contact-item-detail {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.contact-form-wrapper {
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 2rem;
}

.contact-form-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--card-foreground);
  margin-bottom: 1.5rem;
}

.form-row {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.form-group:not(.form-row .form-group) {
  margin-bottom: 1.5rem;
}

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

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background-color: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--ring);
  box-shadow: 0 0 0 2px rgba(42, 54, 84, 0.1);
}

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

.form-select {
  height: 2.5rem;
  cursor: pointer;
}

.form-textarea {
  resize: none;
  min-height: 100px;
}

/* Footer */
.footer {
  background-color: var(--primary);
  color: var(--primary-foreground);
}

.footer .container {
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.footer-grid {
  display: grid;
  gap: 3rem;
}

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

.footer-brand {
  grid-column: span 1;
}

@media (min-width: 768px) {
  .footer-brand {
    grid-column: span 1;
  }
}

.footer-logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.footer-logo-img {
  border-radius: 0.25rem;
}

.footer-logo-title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  display: block;
}

.footer-logo-subtitle {
  font-size: 0.75rem;
  color: rgba(248, 248, 248, 0.7);
  letter-spacing: 0.05em;
  display: block;
}

.footer-description {
  font-size: 0.875rem;
  color: rgba(248, 248, 248, 0.8);
  max-width: 28rem;
  text-wrap: pretty;
}

.footer-links-title {
  font-family: var(--font-serif);
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.875rem;
}

.footer-links-list a {
  color: rgba(248, 248, 248, 0.7);
  transition: color 0.2s ease;
}

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

.footer-bottom {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(248, 248, 248, 0.1);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: rgba(248, 248, 248, 0.6);
}

/* Mobile-first responsive improvements */

/* Extra small devices (phones, less than 360px) */
@media (max-width: 359px) {
  .hero-title {
    font-size: 1.75rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .hero-stats-grid {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .stat-divider {
    display: none;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .btn-lg {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
  }
}

/* Small phones (360px - 480px) */
@media (max-width: 479px) {
  .hero-stats-grid {
    flex-wrap: wrap;
    gap: 1rem;
  }
  
  .stat-divider {
    display: none;
  }
  
  .stat-item {
    flex: 1 1 40%;
  }
  
  .contact-form-wrapper {
    padding: 1.25rem;
  }
  
  .about-card {
    padding: 1.5rem;
  }
}

/* Tablets (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .services-grid .service-card:last-child {
    grid-column: span 2;
    max-width: 50%;
    margin: 0 auto;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* Ensure touch targets are at least 44px on mobile */
@media (max-width: 767px) {
  .btn {
    min-height: 44px;
    min-width: 44px;
  }
  
  .nav-link {
    padding: 0.75rem 0;
  }
  
  .mobile-nav-content .nav-link {
    padding: 0.75rem;
  }
  
  .form-input,
  .form-select,
  .form-textarea {
    min-height: 44px;
    font-size: 16px; /* Prevents iOS zoom on focus */
  }
}

/* Landscape orientation on phones */
@media (max-width: 767px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding: 6rem 0 4rem;
  }
  
  .hero-container {
    padding: 2rem 1rem;
  }
  
  .hero-logo-img {
    width: 100px;
    height: 100px;
  }
}

/* High DPI / Retina displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .hero-logo-img,
  .footer-logo-img {
    image-rendering: -webkit-optimize-contrast;
  }
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  .btn,
  .service-card,
  .service-icon-wrapper,
  .nav-link {
    transition: none;
  }
}

/* Print styles */
@media print {
  .header,
  .mobile-menu-btn,
  .mobile-nav,
  .btn {
    display: none;
  }
  
  .hero {
    min-height: auto;
    background-color: white;
    color: black;
  }
  
  .hero-title,
  .hero-description {
    color: black;
  }
  
  body {
    font-size: 12pt;
  }
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--primary);
  color: var(--primary-foreground);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background-color 0.2s ease;
  box-shadow: 0 4px 12px rgba(18, 35, 52, 0.3);
  z-index: 50;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: rgba(18, 35, 52, 0.85);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(18, 35, 52, 0.4);
}

.back-to-top:active {
  transform: translateY(0);
}

.back-to-top:focus {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

@media (max-width: 767px) {
  .back-to-top {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 44px;
    height: 44px;
  }
}

@media print {
  .back-to-top {
    display: none;
  }
}