:root {
  --primary-deep: #0D1B2A;
  --secondary-slate: #1B263B;
  --accent-mist: #AFC6D6;
  --soft-ivory: #F4F6F8;
  --pale-silver: #DCE1E7;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Georgia', 'Times New Roman', serif;
  color: var(--primary-deep);
  background-color: var(--soft-ivory);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  margin-bottom: 1.25rem;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  margin-bottom: 1rem;
}

p {
  font-family: 'Arial', 'Helvetica', sans-serif;
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  margin-bottom: 1.5rem;
  max-width: 65ch;
}

a {
  color: var(--secondary-slate);
  text-decoration: none;
  transition: color 0.3s ease, opacity 0.3s ease;
}

a:hover {
  color: var(--accent-mist);
  opacity: 0.8;
}

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

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

header {
  background-color: var(--primary-deep);
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(13, 27, 42, 0.1);
}

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

.logo {
  font-size: 1.5rem;
  color: var(--soft-ivory);
  font-weight: 400;
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
  align-items: center;
}

.nav-links a {
  color: var(--soft-ivory);
  font-family: 'Arial', 'Helvetica', sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
}

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

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0.5rem;
}

.burger span {
  width: 25px;
  height: 2px;
  background-color: var(--soft-ivory);
  transition: all 0.3s ease;
}

.burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.burger.active span:nth-child(2) {
  opacity: 0;
}

.burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: 1;
}

.section {
  padding: 6rem 0;
}

.section-alt {
  background-color: var(--pale-silver);
}

.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  background-color: var(--secondary-slate);
  color: var(--soft-ivory);
  font-family: 'Arial', 'Helvetica', sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
}

.btn:hover {
  background-color: var(--accent-mist);
  color: var(--primary-deep);
  transform: translateY(-2px);
}

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

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

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background-color: var(--soft-ivory);
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(13, 27, 42, 0.1);
}

.card-image {
  width: 100%;
  height: 300px;
  object-fit: cover;
  margin-bottom: 1.5rem;
}

form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 2rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-family: 'Arial', 'Helvetica', sans-serif;
  font-size: 0.95rem;
  color: var(--primary-deep);
  letter-spacing: 0.05em;
}

input[type="text"],
input[type="email"],
textarea,
select {
  width: 100%;
  padding: 1rem;
  border: 1px solid var(--pale-silver);
  background-color: var(--soft-ivory);
  font-family: 'Arial', 'Helvetica', sans-serif;
  font-size: 1rem;
  color: var(--primary-deep);
  transition: border-color 0.3s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent-mist);
}

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

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

input[type="checkbox"] {
  margin-top: 0.25rem;
  width: 18px;
  height: 18px;
  cursor: pointer;
}

footer {
  background-color: var(--primary-deep);
  color: var(--soft-ivory);
  padding: 4rem 0 2rem;
  margin-top: 6rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-section h3 {
  color: var(--accent-mist);
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
}

.footer-section p,
.footer-section a {
  color: var(--soft-ivory);
  font-family: 'Arial', 'Helvetica', sans-serif;
  font-size: 0.9rem;
  line-height: 1.8;
  display: block;
  margin-bottom: 0.75rem;
}

.footer-section a:hover {
  color: var(--accent-mist);
}

.footer-bottom {
  border-top: 1px solid var(--secondary-slate);
  padding-top: 2rem;
  text-align: center;
  font-family: 'Arial', 'Helvetica', sans-serif;
  font-size: 0.85rem;
  color: var(--pale-silver);
}

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background-color: var(--secondary-slate);
  color: var(--soft-ivory);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  z-index: 999;
  transition: all 0.3s ease;
  opacity: 0.8;
}

.back-to-top:hover {
  background-color: var(--accent-mist);
  color: var(--primary-deep);
  opacity: 1;
  transform: translateY(-3px);
}

.back-to-top.visible {
  display: flex;
}

.editorial-block {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 0;
}

.asymmetric-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  align-items: start;
}

.vertical-stagger {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.vertical-stagger > *:nth-child(even) {
  margin-left: 3rem;
}

.horizontal-scroll {
  display: flex;
  gap: 2rem;
  overflow-x: auto;
  padding: 2rem 0;
  scroll-snap-type: x mandatory;
}

.horizontal-scroll > * {
  flex: 0 0 400px;
  scroll-snap-align: start;
}

.large-typography {
  font-size: clamp(3rem, 6vw, 6rem);
  line-height: 1.1;
  color: var(--primary-deep);
  margin: 4rem 0;
}

.diagram-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 3rem;
  align-items: start;
}

.responsive-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

@media (max-width: 768px) {
  .responsive-grid-2 {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .responsive-grid-2[style*="order: 2"] {
    order: 1;
  }
  
  .responsive-grid-2 > div[style*="order: 2"] {
    order: 1;
  }
  
  .responsive-grid-2 > div[style*="order: 1"] {
    order: 2;
  }
}

.magazine-narrative {
  column-count: 2;
  column-gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

@media (max-width: 1024px) {
  .asymmetric-grid {
    grid-template-columns: 1fr;
  }
  
  .vertical-stagger > *:nth-child(even) {
    margin-left: 0;
  }
  
  .magazine-narrative {
    column-count: 1;
  }
  
  .diagram-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--primary-deep);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  }
  
  .nav-links.active {
    transform: translateX(0);
  }
  
  .burger {
    display: flex;
  }
  
  .container {
    padding: 0 1.5rem;
  }
  
  .section {
    padding: 4rem 0;
  }
  
  .horizontal-scroll > * {
    flex: 0 0 300px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .back-to-top {
    width: 45px;
    height: 45px;
    bottom: 1.5rem;
    right: 1.5rem;
  }
}

@media (max-width: 320px) {
  .newsection {
    grid-template-columns: 1fr !important;
    gap: 2rem;
  }

  .container {
    padding: 0 0.75rem;
  }
  
  html {
    font-size: 14px;
  }
  
  h1 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
  }
  
  h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }
  
  h3 {
    font-size: 1.25rem;
  }
  
  .section {
    padding: 2rem 0;
  }
  
  .hero {
    min-height: 60vh;
    padding: 3rem 0;
  }
  
  .logo {
    font-size: 1.25rem;
  }
  
  .nav-links {
    padding: 1.5rem;
    gap: 1rem;
    top: 60px;
  }
  
  .nav-links a {
    font-size: 0.9rem;
  }
  
  .card {
    padding: 1.5rem;
  }
  
  .card-image {
    height: 200px;
  }
  
  .btn {
    padding: 0.875rem 2rem;
    font-size: 0.875rem;
  }
  
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .grid-2 {
    grid-template-columns: 1fr;
  }
  
  .horizontal-scroll > * {
    flex: 0 0 250px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .back-to-top {
    width: 40px;
    height: 40px;
    bottom: 1rem;
    right: 1rem;
    font-size: 1.25rem;
  }
  
  .asymmetric-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .diagram-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  form {
    max-width: 100%;
  }
  
  input[type="text"],
  input[type="email"],
  textarea,
  select {
    padding: 0.875rem;
    font-size: 0.9rem;
  }
  
  textarea {
    min-height: 120px;
  }
  
  .large-typography {
    font-size: 2.5rem;
    margin: 2rem 0;
  }
}

@media (max-width: 320px) {
  .container {
    padding: 0 0.75rem;
  }
  
  html {
    font-size: 14px;
  }
  
  h1 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
  }
  
  h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }
  
  h3 {
    font-size: 1.25rem;
  }
  
  .section {
    padding: 2rem 0;
  }
  
  .hero {
    min-height: 60vh;
    padding: 3rem 0;
  }
  
  .logo {
    font-size: 1.25rem;
  }
  
  .nav-links {
    padding: 1.5rem;
    gap: 1rem;
    top: 60px;
  }
  
  .nav-links a {
    font-size: 0.9rem;
  }
  
  .card {
    padding: 1.5rem;
  }
  
  .card-image {
    height: 200px;
  }
  
  .btn {
    padding: 0.875rem 2rem;
    font-size: 0.875rem;
  }
  
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .grid-2 {
    grid-template-columns: 1fr;
  }
  
  .horizontal-scroll > * {
    flex: 0 0 250px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .back-to-top {
    width: 40px;
    height: 40px;
    bottom: 1rem;
    right: 1rem;
    font-size: 1.25rem;
  }
  
  .asymmetric-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .diagram-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  form {
    max-width: 100%;
  }
  
  input[type="text"],
  input[type="email"],
  textarea,
  select {
    padding: 0.875rem;
    font-size: 0.9rem;
  }
  
  textarea {
    min-height: 120px;
  }
  
  .large-typography {
    font-size: 2.5rem;
    margin: 2rem 0;
  }
}