:root {
  color-scheme: dark;
}

body {
  margin: 0;
  font-family: 'Source Sans Pro', sans-serif;
  background: linear-gradient(120deg, #121722 0%, #0f172a 45%, #1f2937 100%);
  color: #f7f9fc;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.auth-card {
  width: min(720px, 100%);
  background: rgba(16, 22, 33, 0.92);
  border: 1px solid rgba(148, 163, 184, 0.24);
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.38);
  overflow: hidden;
}

.auth-header {
  padding: 24px 28px 12px;
}

.auth-header h1 {
  margin: 0;
  font-size: 1.9rem;
  font-family: 'Space Grotesk', sans-serif;
}

.auth-header p {
  margin: 8px 0 0;
  color: #c7d2e3;
}

.auth-tabs {
  display: flex;
  gap: 8px;
  padding: 0 24px 12px;
}

.auth-tab {
  border: 1px solid rgba(148, 163, 184, 0.25);
  background: transparent;
  color: #d8e3f7;
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 0.92rem;
}

.auth-tab.is-active {
  background: #2f6bff;
  border-color: #2f6bff;
  color: #ffffff;
}

.auth-body {
  padding: 8px 24px 28px;
}

.auth-panel {
  display: grid;
  gap: 12px;
}

.auth-panel[hidden] {
  display: none;
}

.auth-field {
  display: grid;
  gap: 6px;
}

.auth-field label {
  color: #c8d4ea;
  font-size: 0.95rem;
}

.auth-field input,
.auth-field textarea {
  width: 100%;
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: rgba(15, 23, 36, 0.82);
  color: #f8fbff;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.95rem;
  box-sizing: border-box;
}

.auth-field textarea {
  min-height: 100px;
  resize: vertical;
}

.auth-button {
  margin-top: 6px;
  border: 0;
  border-radius: 10px;
  background: #2f6bff;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  padding: 11px 14px;
  cursor: pointer;
}

.auth-status {
  margin-top: 12px;
  min-height: 20px;
  font-size: 0.95rem;
  color: #93c5fd;
}

.auth-status--error {
  color: #fca5a5;
}

.auth-status--success {
  color: #86efac;
}