:root {
  --primary: #010B13;
  --paper: #ffffff;
  --paper-soft: #f7f7f6;
  --error: #c0392b;
  --success: #1e8449;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--paper-soft);
  color: var(--primary);
}

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

.auth-card {
  background: var(--paper);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 4px 24px rgba(1,11,19,0.08);
}

.auth-card h1 {
  font-size: 24px;
  margin: 0 0 8px;
}

.auth-card .subtitle {
  color: #6b7280;
  font-size: 14px;
  margin-bottom: 28px;
}

.field { margin-bottom: 18px; }

.field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  font-size: 15px;
}

.field input:focus {
  outline: none;
  border-color: var(--primary);
}

.role-toggle {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.role-toggle label {
  flex: 1;
  text-align: center;
  padding: 10px;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
}

.role-toggle input { display: none; }

.role-toggle input:checked + span {
  color: var(--paper);
}

.role-toggle label:has(input:checked) {
  background: var(--primary);
  color: var(--paper);
}

.btn {
  width: 100%;
  padding: 13px;
  background: var(--primary);
  color: var(--paper);
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

.btn:hover { opacity: 0.9; }

.alert {
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 14px;
  margin-bottom: 18px;
}

.alert-error {
  background: #fdecea;
  color: var(--error);
}

.alert-success {
  background: #eafaf1;
  color: var(--success);
}

.auth-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
}

.auth-footer a {
  color: var(--primary);
  font-weight: 600;
}

#shop-field { display: none; }