:root {
  --bg: #0f1115;
  --panel: #171a21;
  --text: #f4f4f6;
  --muted: #9aa3b2;
  --accent: #FFAC1C;
  --border: #2a2f3a;
  --danger: #e53e3e;
}
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
.shell-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--accent);
}
.shell-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.shell-nav a {
  color: var(--muted);
  text-decoration: none;
}
.shell-nav a:hover { color: var(--text); }
.shell-main {
  padding: 2rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}
.card {
  width: min(28rem, 100%);
  margin: 4rem auto;
  padding: 1.5rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
}
.card h1 {
  margin: 0 0 1.5rem 0;
  font-size: 1.5rem;
}
form label {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--muted);
  font-size: 0.875rem;
}
form input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}
form input:focus {
  outline: none;
  border-color: var(--accent);
}
button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  background: var(--accent);
  color: #131313;
  border: 0;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
button:hover { opacity: 0.9; }
.error {
  color: var(--danger);
  font-size: 0.9rem;
}
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}
.page-header h1 { margin: 0; }
.feed-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}
.feed-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.feed-list li a {
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}
.meta { color: var(--muted); font-size: 0.85rem; }
.empty { color: var(--muted); text-align: center; padding: 2rem; }
dl { margin: 0; }
dt { color: var(--muted); font-size: 0.85rem; margin-top: 0.75rem; }
dd { margin: 0.25rem 0 0 0; }