/* Vision Systems - Global Styles */

/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&family=Playfair+Display:wght@400;500;600&display=swap');

/* CSS Variables */
:root {
  --navy: #0a1628;
  --navy-light: #142238;
  --cream: #f5f2eb;
  --cream-dark: #e8e4db;
  --accent: #4a7c7c;
  --text-muted: #8a9ab0;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'DM Sans', sans-serif;
  background-color: var(--navy);
  color: var(--cream);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

/* Typography */
h1, h2, h3, h4 {
  font-family: 'Playfair Display', serif;
  font-weight: 500;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
}

p {
  font-size: 1.125rem;
  color: var(--cream-dark);
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 6rem 0;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  background: rgba(10, 22, 40, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(245, 242, 235, 0.05);
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 100px;
  width: auto;
}

.logo-text {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 3rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  position: relative;
  transition: var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--cream);
  transition: var(--transition);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.nav-toggle span {
  width: 25px;
  height: 2px;
  background: var(--cream);
  transition: var(--transition);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse at center, rgba(74, 124, 124, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-tagline {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

.hero h1 {
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.1s forwards;
}

.hero p {
  font-size: 1.25rem;
  max-width: 600px;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.2s forwards;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

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

.btn-primary:hover {
  background: var(--cream-dark);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--cream);
  border: 1px solid rgba(245, 242, 235, 0.3);
}

.btn-outline:hover {
  border-color: var(--cream);
  background: rgba(245, 242, 235, 0.05);
}

.btn-arrow {
  transition: transform 0.3s ease;
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.3s forwards;
}

/* Services Preview */
.services-preview {
  background: var(--navy-light);
  position: relative;
}

.services-preview::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245, 242, 235, 0.1), transparent);
}

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

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-muted);
}

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

.service-card {
  padding: 2.5rem;
  background: rgba(245, 242, 235, 0.02);
  border: 1px solid rgba(245, 242, 235, 0.05);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}

.service-card:hover::before {
  transform: translateX(0);
}

.service-card:hover {
  background: rgba(245, 242, 235, 0.04);
  transform: translateY(-4px);
}

.service-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.5rem;
  color: var(--accent);
}

.service-card h3 {
  margin-bottom: 1rem;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
}

.service-card p {
  font-size: 1rem;
  color: var(--text-muted);
}

/* About Preview */
.about-preview {
  position: relative;
}

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

.about-content h2 {
  margin-bottom: 1.5rem;
}

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

.about-stats {
  display: flex;
  gap: 3rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(245, 242, 235, 0.1);
}

.stat h4 {
  font-family: 'DM Sans', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--cream);
}

.stat p {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.about-visual {
  position: relative;
  height: 500px;
}

.about-visual-box {
  position: absolute;
  background: var(--navy-light);
  border: 1px solid rgba(245, 242, 235, 0.08);
}

.about-visual-box:nth-child(1) {
  top: 0;
  right: 0;
  width: 80%;
  height: 70%;
}

.about-visual-box:nth-child(2) {
  bottom: 0;
  left: 0;
  width: 60%;
  height: 50%;
  background: rgba(74, 124, 124, 0.1);
}

/* CTA Section */
.cta {
  text-align: center;
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-light) 100%);
}

.cta h2 {
  margin-bottom: 1rem;
}

.cta p {
  max-width: 600px;
  margin: 0 auto 2rem;
}

/* Footer */
footer {
  padding: 4rem 0 2rem;
  border-top: 1px solid rgba(245, 242, 235, 0.05);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 3rem;
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo-text {
  margin-bottom: 1rem;
  display: block;
}

.footer-brand p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 4rem;
}

.footer-column h4 {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
  color: var(--cream);
}

.footer-column ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-column a {
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-column a:hover {
  color: var(--cream);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(245, 242, 235, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

/* Page Headers */
.page-header {
  padding: 10rem 0 4rem;
  text-align: center;
  position: relative;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 150%;
  height: 100%;
  background: radial-gradient(ellipse at top center, rgba(74, 124, 124, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.page-header h1 {
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

.page-header p {
  max-width: 600px;
  margin: 0 auto;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.1s forwards;
}

/* Services Page */
.services-detail {
  padding-bottom: 4rem;
}

.service-tier {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  padding: 4rem 0;
  border-bottom: 1px solid rgba(245, 242, 235, 0.05);
}

.service-tier:last-child {
  border-bottom: none;
}

.tier-header h3 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.tier-header .tier-tag {
  font-size: 0.875rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.tier-content p {
  margin-bottom: 1.5rem;
}

.tier-features {
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.tier-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 1rem;
  color: var(--cream-dark);
}

.tier-features li::before {
  content: '→';
  color: var(--accent);
  flex-shrink: 0;
}

/* About Page */
.about-detail {
  padding-bottom: 4rem;
}

.about-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  padding: 4rem 0;
}

.about-section h3 {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

.about-section p {
  margin-bottom: 1rem;
}

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

.value-item h4 {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--cream);
}

.value-item p {
  font-size: 0.95rem;
}

/* Contact Page */
.contact-section {
  padding: 4rem 0;
}

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

.contact-info h3 {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

.contact-info p {
  margin-bottom: 2rem;
}

.contact-method {
  margin-bottom: 2rem;
}

.contact-method h4 {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.contact-method a {
  font-size: 1.25rem;
  color: var(--cream);
  transition: var(--transition);
}

.contact-method a:hover {
  color: var(--accent);
}

.contact-form {
  background: var(--navy-light);
  padding: 3rem;
  border: 1px solid rgba(245, 242, 235, 0.05);
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  color: var(--cream);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  background: rgba(245, 242, 235, 0.03);
  border: 1px solid rgba(245, 242, 235, 0.1);
  color: var(--cream);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(245, 242, 235, 0.05);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.contact-form .btn {
  width: 100%;
  justify-content: center;
}

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

/* Mobile Navigation */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 400px;
    height: 100vh;
    background: var(--navy-light);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transition: right 0.4s ease;
  }

  .nav-links.active {
    right: 0;
  }

  .nav-links a {
    font-size: 1.25rem;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .about-grid,
  .service-tier,
  .about-section,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-content {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-links {
    flex-direction: column;
    gap: 2rem;
  }

  .about-stats {
    gap: 2rem;
  }

  .values-grid {
    grid-template-columns: 1fr;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}