:root {
  --bg: #0c0c0d;
  --panel: #171719;
  --panel-2: #202023;
  --text: #f6f6f6;
  --muted: #a7a7ad;
  --red: #c91524;
  --border: #303036;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}
.layout { min-height: 100vh; display: grid; grid-template-columns: 270px 1fr; }
.sidebar {
  padding: 24px 18px;
  background: #111113;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.brand { color: var(--text); text-decoration: none; display: flex; align-items: center; gap: 12px; line-height: 1.15; }
.brand img { width: 62px; height: 62px; border-radius: 50%; object-fit: cover; border: 2px solid var(--red); }
nav { display: grid; gap: 8px; }
nav a, nav span { padding: 12px 14px; border-radius: 10px; }
nav a { color: var(--text); text-decoration: none; }
nav a.active { background: var(--red); }
nav .disabled { color: #6f6f75; border: 1px solid transparent; }
.logout { margin-top: auto; width: 100%; padding: 11px; background: transparent; color: var(--text); border: 1px solid var(--border); border-radius: 10px; cursor: pointer; }
.content { padding: 42px; }
.eyebrow { color: var(--red); text-transform: uppercase; letter-spacing: .12em; font-size: .75rem; font-weight: 800; }
.page-header h1 { margin: 6px 0; font-size: clamp(1.8rem, 3vw, 3rem); }
.page-header p { color: var(--muted); }
.cards { margin-top: 30px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.card, .panel { border: 1px solid var(--border); background: var(--panel); border-radius: 16px; padding: 22px; }
.card span { display: block; color: var(--muted); font-size: .92rem; }
.card strong { display: block; margin-top: 14px; font-size: 2rem; }
.panel { margin-top: 22px; }
.panel p { color: var(--muted); }
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 20px; background: radial-gradient(circle at top, #28282c 0, var(--bg) 45%); }
.login-card { width: min(430px, 100%); padding: 34px; background: rgba(23,23,25,.96); border: 1px solid var(--border); border-radius: 22px; box-shadow: 0 24px 80px rgba(0,0,0,.45); text-align: center; }
.login-logo { width: 116px; height: 116px; border-radius: 50%; object-fit: cover; border: 3px solid var(--red); }
.login-card h1 { margin-bottom: 4px; }
.login-card p { color: var(--muted); margin-top: 0; }
.login-card form { display: grid; gap: 10px; text-align: left; margin-top: 24px; }
.login-card input { width: 100%; padding: 13px 14px; border-radius: 10px; border: 1px solid var(--border); color: var(--text); background: var(--panel-2); }
.login-card button { margin-top: 10px; padding: 13px; border: 0; border-radius: 10px; color: white; background: var(--red); font-weight: 800; cursor: pointer; }
.alert { padding: 10px 12px; border-radius: 10px; background: #4b161c; color: #ffd7da; }
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .content { padding: 24px 18px; }
}
@media (max-width: 520px) {
  .cards { grid-template-columns: 1fr; }
}