:root {
  --bg: #0e0f13;
  --card: #171a21;
  --card-border: #262b36;
  --text: #e7e9ee;
  --muted: #8b93a3;
  --accent: #ff5b25;      /* фирменный оранжевый Octo */
  --accent-hover: #ff6f40;
  --ok-bg: #123020;
  --ok-border: #1f6b45;
  --ok-text: #7ee2a8;
  --err-bg: #331519;
  --err-border: #7a2630;
  --err-text: #f2a3ab;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.center {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

/* ---- Топбар ---- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--card-border);
  background: #12141a;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand h1 { font-size: 20px; margin: 0; }
.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  display: inline-block;
}

/* ---- Обёртка контента ---- */
.wrap {
  max-width: 560px;
  margin: 40px auto;
  padding: 0 24px;
}

/* ---- Карточка ---- */
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px;
}
.auth-card { width: 100%; max-width: 380px; }
.card h2 { margin: 0 0 6px; font-size: 20px; }

.muted { color: var(--muted); font-size: 14px; margin-top: 4px; }
.footer-note { text-align: center; margin-top: 20px; }

/* ---- Формы ---- */
form { margin-top: 20px; display: flex; flex-direction: column; gap: 16px; }
label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  color: var(--muted);
}
input[type="text"],
input[type="email"],
input[type="password"] {
  background: #0f1116;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 11px 13px;
  color: var(--text);
  font-size: 15px;
  transition: border-color .15s, box-shadow .15s;
}
input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255, 91, 37, 0.15);
}
.hint { color: var(--muted); font-size: 12px; }

.checkbox-row {
  flex-direction: row;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 14px;
}
.checkbox-row input { width: 16px; height: 16px; accent-color: var(--accent); }

/* ---- Кнопки ---- */
.btn {
  display: inline-block;
  border: none;
  border-radius: 8px;
  padding: 12px 18px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: background .15s, opacity .15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { opacity: .6; cursor: not-allowed; }
.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--card-border);
  padding: 8px 14px;
  font-size: 14px;
}
.btn-ghost:hover { color: var(--text); border-color: var(--muted); }

/* ---- Алерты и результат ---- */
.alert {
  padding: 10px 13px;
  border-radius: 8px;
  font-size: 14px;
  margin: 14px 0 4px;
}
.alert-error { background: var(--err-bg); border: 1px solid var(--err-border); color: var(--err-text); }

.result {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 8px;
  font-size: 14px;
}
.result-success { background: var(--ok-bg); border: 1px solid var(--ok-border); color: var(--ok-text); }
.result-error { background: var(--err-bg); border: 1px solid var(--err-border); color: var(--err-text); }
.result-meta { margin-top: 6px; opacity: .9; }