:root {
  --color-primary: #1e3a5f;
  --color-secondary: #f8fafc;
  --color-accent: #047857;
  --color-text: #1a1a1a;
  --color-text-light: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f9fafb;
  --font-family: 'Outfit', sans-serif;
  --font-size-base: 18px;
  --line-height-base: 1.7;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}
p {
  margin-bottom: var(--space-md);
}
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition-fast);
}
a:hover {
  color: var(--color-accent);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.section {
  padding: var(--space-2xl) 0;
}
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-base);
  border: none;
}
.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background-color: #2c5282;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-accent {
  background-color: var(--color-accent);
  color: #fff;
}
.btn-accent:hover {
  background-color: #059669;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(5px);
  box-shadow: var(--shadow-sm);
  padding: var(--space-sm) 0;
}
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
}
.nav-links {
  display: flex;
  gap: var(--space-lg);
}
.nav-links a {
  font-weight: 500;
  color: var(--color-text);
}
.nav-links a:hover {
  color: var(--color-accent);
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}
.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--color-primary);
  transition: var(--transition-fast);
}
.hero {
  display: flex;
  align-items: center;
  min-height: 80vh;
  background-color: var(--color-bg-alt);
}
.hero-content {
  flex: 1;
}
.hero-image {
  flex: 1;
  position: relative;
}
.hero-image img {
  width: 100%;
  height: 600px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to right, rgba(255, 255, 255, 0.8), transparent);
  border-radius: var(--radius-lg);
}
.grid {
  display: grid;
  gap: var(--space-lg);
}
.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}
.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}
.card {
  background-color: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.staircase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}
.staircase-item:nth-child(even) {
  margin-top: var(--space-2xl);
}
.footer {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  padding: var(--space-2xl) 0 var(--space-lg);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-lg);
  text-align: center;
  font-size: 0.875rem;
}
.footer h4 {
  color: #fff;
  margin-bottom: var(--space-md);
}
.footer a {
  color: #cbd5e1;
}
.footer a:hover {
  color: var(--color-accent);
}
.faq-item {
  border-bottom: 1px solid #e5e7eb;
  padding: var(--space-md) 0;
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}
.faq-item.active .faq-answer {
  max-height: 500px;
  margin-top: var(--space-sm);
}
.contact-form {
  display: grid;
  gap: var(--space-md);
}
.form-group {
  display: flex;
  flex-direction: column;
}
.form-group label {
  margin-bottom: var(--space-xs);
  font-weight: 500;
}
.form-group input, .form-group textarea {
  padding: 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: var(--radius-sm);
  font-family: inherit;
}
.cookie-consent {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #fff;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
  padding: var(--space-md);
  z-index: 2000;
  display: none;
  justify-content: space-between;
  align-items: center;
}
.cookie-consent.show {
  display: flex;
}
.article-content {
  max-width: 720px;
  margin: 0 auto;
}
.author-box {
  display: flex;
  gap: var(--space-md);
  background-color: var(--color-bg-alt);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  margin-top: var(--space-2xl);
}
.author-image {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background-color: #ddd;
  flex-shrink: 0;
}
@media (max-width: 1024px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding: var(--space-2xl) 0;
  }
  .hero-image {
    width: 100%;
    margin-top: var(--space-xl);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #fff;
    flex-direction: column;
    padding: var(--space-md);
    gap: var(--space-md);
    box-shadow: var(--shadow-md);
  }
  .nav-links.show {
    display: flex;
  }
  .hamburger {
    display: flex;
  }
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .staircase-item:nth-child(even) {
    margin-top: 0;
  }
}
@media (max-width: 320px) {
  body {
    font-size: 16px;
  }
  .container {
    padding: 0 var(--space-sm);
  }
}