:root {
  --bg-color: #fcfbf9;
  --text-color: #2c2925;
  --muted-color: #6b645c;
  --accent-color: #8b4513;
  --accent-hover: #5c2d0c;
  --border-color: #e3ded6;
  --card-bg: #f4f0eb;
  --error-bg: #fdf2f2;
  --error-text: #9b2c2c;
  --success-bg: #f0fdf4;
  --success-text: #166534;
  --max-width: 800px;
  --font-stack: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: #1a1816;
    --text-color: #e6e2db;
    --muted-color: #a39c94;
    --accent-color: #d2a679;
    --accent-hover: #e0bc96;
    --border-color: #3d3832;
    --card-bg: #24211e;
    --error-bg: #3b1c1c;
    --error-text: #f56565;
    --success-bg: #143321;
    --success-text: #68d391;
  }
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-stack);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 0;
  background-color: var(--bg-color);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--text-color);
  text-decoration: none;
}

.logo:hover {
  color: var(--accent-color);
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.site-nav a, .footer-nav a {
  color: var(--muted-color);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 0.25rem 0;
}

.site-nav a:hover, .site-nav a[aria-current="page"],
.footer-nav a:hover {
  color: var(--accent-color);
}

.main-content {
  flex: 1;
  padding: 2.5rem 1.5rem;
}

.hero-section, .error-section, .subscribe-section, .unsubscribe-section, .news-section, .page-article {
  margin-bottom: 3rem;
}

h1 {
  font-size: 2rem;
  margin-top: 0;
  margin-bottom: 1rem;
  line-height: 1.25;
}

h2 {
  font-size: 1.35rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

p {
  margin-top: 0;
  margin-bottom: 1rem;
}

ul {
  margin-top: 0;
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 600px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1.5rem;
}

.card h2 {
  font-size: 1.15rem;
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.card p {
  margin-bottom: 0;
  font-size: 0.95rem;
  color: var(--muted-color);
}

.form-group {
  margin-bottom: 1rem;
}

label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

input[type="email"] {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--bg-color);
  color: var(--text-color);
  font-size: 1rem;
  min-height: 44px;
}

input[type="email"]:focus {
  outline: 2px solid var(--accent-color);
  border-color: transparent;
}

.btn {
  display: inline-block;
  background-color: var(--accent-color);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  min-height: 44px;
  line-height: normal;
  text-align: center;
}

.btn:hover {
  background-color: var(--accent-hover);
}

.form-message {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: 4px;
  font-size: 0.95rem;
}

.form-message.success {
  background-color: var(--success-bg);
  color: var(--success-text);
  border: 1px solid var(--success-text);
}

.form-message.error {
  background-color: var(--error-bg);
  color: var(--error-text);
  border: 1px solid var(--error-text);
}

.news-item {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.news-item:last-child {
  border-bottom: none;
}

.news-date {
  font-size: 0.85rem;
  color: var(--muted-color);
  margin-bottom: 0.5rem;
}

.diagnostic-box {
  margin: 1.5rem 0;
}

textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--card-bg);
  color: var(--text-color);
  font-family: monospace;
  font-size: 0.9rem;
  resize: vertical;
}

.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 1.5rem 0;
  margin-top: auto;
  font-size: 0.9rem;
  color: var(--muted-color);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-nav {
  display: flex;
  gap: 1.25rem;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}