/**
 * gate.css: Theme giao diện Cổng Gateway & Trang Đăng Nhập (vinfast_tiny)
 * Tuân thủ File 14 README: Độc lập hoàn toàn với theme của các version bên trong.
 */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  background: #0d1117;
  color: #c9d1d9;
  font-size: 13px;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.login-card,
.gate-card {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 12px;
  max-width: 420px;
  width: 100%;
  padding: 24px 20px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.gate-card-title {
  font-size: 15px;
  font-weight: 700;
  color: #f0f6fc;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: #c9d1d9;
  margin-bottom: 6px;
}

.form-control,
.input-text {
  width: 100%;
  background: #0d1117;
  border: 1px solid #30363d;
  color: #f0f6fc;
  padding: 9px 12px;
  border-radius: 6px;
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus,
.input-text:focus {
  border-color: #58a6ff;
  box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.2);
}

.form-control.uppercase {
  text-transform: uppercase;
  font-family: monospace;
  font-weight: 700;
}

.btn-submit {
  width: 100%;
  background: #238636;
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background 0.15s;
}

.btn-submit:hover {
  background: #2ea043;
}

.btn-primary {
  background: #1f6feb;
}

.btn-primary:hover {
  background: #388bfd;
}

.btn-sec {
  background: #21262d;
  border: 1px solid #30363d;
  color: #c9d1d9;
}

.btn-sec:hover {
  background: #30363d;
  color: #f0f6fc;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 11px;
  border-radius: 4px;
}

.alert-error {
  background: rgba(218, 54, 51, 0.15);
  border: 1px solid rgba(218, 54, 51, 0.4);
  color: #f85149;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.alert-info {
  background: rgba(56, 139, 253, 0.15);
  border: 1px solid rgba(56, 139, 253, 0.4);
  color: #58a6ff;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  margin-bottom: 14px;
}

.footer-note {
  text-align: center;
  font-size: 11px;
  color: #8b949e;
  margin-top: 16px;
}

.admin-link {
  color: #8b949e;
  text-decoration: none;
  font-size: 12px;
  cursor: pointer;
  transition: color 0.15s;
}

.admin-link:hover {
  color: #58a6ff;
  text-decoration: underline;
}

.badge {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 12px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-green {
  background: rgba(46, 160, 67, 0.2);
  color: #3fb950;
  border: 1px solid rgba(46, 160, 67, 0.4);
}

.badge-yellow {
  background: rgba(210, 153, 34, 0.2);
  color: #d29922;
  border: 1px solid rgba(210, 153, 34, 0.4);
}

.badge-blue {
  background: rgba(56, 139, 253, 0.2);
  color: #58a6ff;
  border: 1px solid rgba(56, 139, 253, 0.4);
}