:root {
  --background: #071019;
  --background-soft: #0b1722;
  --card: #102230;
  --card-hover: #142b3b;
  --primary: #43a6ff;
  --secondary: #36d3aa;
  --text: #f2f7fa;
  --text-soft: #a8bac6;
  --border: rgba(168, 186, 198, 0.16);
  --warning: #f1b85b;
  --danger: #ef7777;
  --success: #4fd39b;
  
  --max-width: 1200px;
  --article-width: 800px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 18px;
  --transition: all 0.2s ease;
}

@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  background-color: var(--background);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  opacity: 0.8;
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

ul {
  list-style: none;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Header & Footer Basics */
header {
  background-color: rgba(7, 16, 25, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
}

.site-logo img, .site-logo svg {
  height: 32px;
}

footer {
  background-color: var(--background-soft);
  border-top: 1px solid var(--border);
  padding: 60px 0 30px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h3 {
  color: var(--text);
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: var(--text-soft);
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--text-soft);
  font-size: 0.9rem;
}