:root {
  --staff-bg: #050505;
  --staff-text: #f6efea;
  --staff-muted: rgba(246, 239, 234, 0.64);
  --staff-line: rgba(183, 34, 28, 0.22);
  --staff-card: rgba(12, 7, 7, 0.74);
  --staff-card-strong: rgba(8, 5, 5, 0.9);
  --staff-accent-a: #b7221c;
  --staff-accent-b: #d53a31;
  --staff-danger-bg: rgba(139, 28, 28, 0.24);
  --staff-danger-line: rgba(248, 113, 113, 0.45);
  --staff-success-bg: rgba(183, 34, 28, 0.18);
  --staff-success-line: rgba(229, 86, 79, 0.42);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body.staff-auth-page {
  background:
    radial-gradient(1000px 700px at 10% -10%, rgba(183, 34, 28, 0.26), transparent 60%),
    radial-gradient(900px 700px at 100% 0%, rgba(213, 58, 49, 0.18), transparent 55%),
    radial-gradient(1200px 900px at 30% 120%, rgba(114, 12, 12, 0.18), transparent 55%),
    linear-gradient(180deg, #0b0606 0%, var(--staff-bg) 70%);
  color: var(--staff-text);
  font-family: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(24px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
}

.staff-auth-shell {
  width: min(620px, 100%);
}

.staff-auth-logo {
  text-align: center;
  margin-bottom: 20px;
}

.staff-auth-logo img {
  width: min(230px, 48vw);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 16px 28px rgba(0, 0, 0, 0.36));
}

.staff-auth-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--staff-line);
  border-radius: 24px;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.38);
  backdrop-filter: blur(12px) saturate(115%);
  overflow: hidden;
}

.staff-auth-head {
  padding: 24px 24px 16px;
  border-bottom: 1px solid var(--staff-line);
  background: linear-gradient(180deg, rgba(86, 14, 12, 0.48), rgba(18, 8, 8, 0.28));
}

.staff-auth-title {
  margin: 0;
  font-size: 40px;
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.staff-auth-subtitle {
  margin: 8px 0 0;
  color: var(--staff-muted);
  font-size: 17px;
}

.staff-auth-body {
  padding: 20px 24px 22px;
}

.staff-alert {
  border: 1px solid var(--staff-line);
  border-radius: 14px;
  padding: 10px 12px;
  margin-bottom: 12px;
  font-size: 14px;
  line-height: 1.45;
  background: rgba(255, 255, 255, 0.05);
}

.staff-alert.error {
  background: var(--staff-danger-bg);
  border-color: var(--staff-danger-line);
  color: #fecaca;
}

.staff-alert.success {
  background: var(--staff-success-bg);
  border-color: var(--staff-success-line);
  color: #bbf7d0;
}

.staff-alert code {
  font-size: 13px;
  color: #ffffff;
}

.staff-label {
  display: block;
  margin: 2px 0 8px;
  font-size: 14px;
  color: var(--staff-muted);
  font-weight: 600;
}

.staff-igroup {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

.staff-prefix {
  min-width: 82px;
  border: 1px solid var(--staff-line);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  background: rgba(16, 8, 8, 0.62);
  color: rgba(246, 239, 234, 0.9);
  user-select: none;
}

.staff-field {
  width: 100%;
  min-height: 58px;
  border-radius: 16px;
  border: 1px solid var(--staff-line);
  background: rgba(12, 7, 7, 0.74);
  color: var(--staff-text);
  padding: 0 16px;
  font-size: 24px;
  font-weight: 500;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.staff-field::placeholder {
  color: rgba(246, 239, 234, 0.42);
}

.staff-field:focus {
  border-color: rgba(213, 58, 49, 0.7);
  box-shadow: 0 0 0 3px rgba(183, 34, 28, 0.18);
}

.staff-actions {
  margin-top: 14px;
}

.staff-btn {
  appearance: none;
  width: 100%;
  min-height: 58px;
  border: 0;
  border-radius: 16px;
  padding: 14px 16px;
  cursor: pointer;
  font-size: 26px;
  font-weight: 800;
  color: #fff6f2;
  background: linear-gradient(90deg, var(--staff-accent-a), var(--staff-accent-b));
  box-shadow: 0 14px 32px rgba(183, 34, 28, 0.28);
}

.staff-btn:active {
  transform: translateY(1px);
}

.staff-links {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  font-size: 14px;
}

.staff-links a {
  color: rgba(234, 240, 255, 0.87);
  text-decoration: none;
}

.staff-links a:hover {
  text-decoration: underline;
}

.staff-auth-foot {
  border-top: 1px solid var(--staff-line);
  padding: 12px 24px 14px;
  text-align: center;
  font-size: 13px;
}

.staff-auth-foot a {
  color: rgba(234, 240, 255, 0.8);
  text-decoration: none;
}

.staff-auth-foot a:hover {
  text-decoration: underline;
}

@media (max-width: 760px) {
  .staff-auth-title {
    font-size: 34px;
  }

  .staff-auth-subtitle {
    font-size: 16px;
  }

  .staff-field {
    font-size: 21px;
  }

  .staff-btn {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  body.staff-auth-page {
    padding-top: max(18px, env(safe-area-inset-top));
    padding-bottom: max(18px, env(safe-area-inset-bottom));
  }

  .staff-auth-logo img {
    width: min(190px, 56vw);
  }

  .staff-auth-head,
  .staff-auth-body {
    padding-left: 16px;
    padding-right: 16px;
  }

  .staff-auth-foot {
    padding-left: 16px;
    padding-right: 16px;
  }

  .staff-auth-title {
    font-size: 30px;
  }

  .staff-auth-subtitle {
    font-size: 15px;
  }

  .staff-prefix {
    min-width: 70px;
  }

  .staff-field {
    min-height: 54px;
    font-size: 18px;
    border-radius: 14px;
  }

  .staff-btn {
    min-height: 54px;
    border-radius: 14px;
    font-size: 20px;
  }
}