:root {
  --ink: #0a0a0a;
  --muted: #6b7280;
  --line: #e6e7eb;
  --panel: #ffffff;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(0, 0, 0, .20);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, .35);
  --primary: #111;
  --success: #dcfce7;
  --success-text: #14532d;
  --success-border: #bbf7d0;
}

* {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
}

body.auth-page {
  background: #000;
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.auth-page .card-container {
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 2.5rem;
  animation: fadeIn .6s ease;
}

.auth-page h3 {
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.auth-page .subtitle {
  color: var(--muted);
  text-align: center;
  margin-bottom: 1.5rem;
}

.auth-page a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.auth-page a:hover {
  opacity: .85;
}

.auth-page .form-label {
  font-weight: 600;
}

.auth-page .form-control,
.auth-page .form-select {
  border-radius: 12px;
  border: 1px solid var(--line);
  padding: 1rem 1rem;
  height: calc(3.5rem + 2px);
  transition: all .2s ease;
}

.auth-page .form-control:focus,
.auth-page .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 .2rem rgba(17, 17, 17, .08);
}

.auth-page .is-invalid {
  border-color: #dc2626 !important;
}

.auth-page .error-message {
  color: #dc2626;
  font-size: .875rem;
  margin-top: .25rem;
  min-height: 1rem;
}

.auth-page .with-icon {
  position: relative;
}

.auth-page .with-icon .fi {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: #9ca3af;
  z-index: 3;
  pointer-events: none;
  font-size: 1.1rem;
}

.auth-page .with-icon .form-control,
.auth-page .with-icon .form-select {
  padding-left: 2.6rem;
}

.auth-page .with-icon > label {
  padding-left: 2.6rem;
  color: var(--muted);
}

.auth-page .floating-select .form-select {
  padding-top: 1.125rem;
  padding-bottom: .625rem;
  color: var(--muted);
}

.auth-page .floating-select .form-select option {
  color: var(--ink);
}

.auth-page .floating-select .form-select option[value=""] {
  color: var(--muted);
}

.auth-page .floating-select .form-select:focus,
.auth-page .floating-select .form-select:valid {
  color: var(--ink);
}

.auth-page .floating-select .form-select:disabled {
  color: var(--muted);
  background-color: #f9fafb;
}

.auth-page .floating-select .form-select:required:invalid ~ label,
.auth-page .floating-select .form-select:disabled ~ label {
  opacity: 1;
  transform: translateY(.55rem);
  font-size: 1rem;
}

.auth-page .floating-select .form-select:focus ~ label,
.auth-page .floating-select .form-select:valid ~ label {
  color: var(--muted);
  transform: scale(.85) translateY(-.5rem) translateX(.15rem);
}

.auth-page .floating-select .form-select:focus ~ label {
  color: var(--primary);
}

.auth-page .password-floating .form-control {
  padding-right: 2.25rem;
}

.auth-page .password-floating .toggle-password {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  color: #9ca3af;
  z-index: 3;
}

.auth-page .password-floating .toggle-password:hover {
  color: var(--primary);
}

.auth-page .btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  font-weight: 700;
  border-radius: 12px;
  padding: 0.875rem 1.5rem;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}

.auth-page .btn-primary:hover {
  background: #000;
  border-color: #000;
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.auth-page .form-check-input {
  border-radius: 6px;
}

.auth-page .form-check-input:focus {
  box-shadow: 0 0 0 .2rem rgba(17, 17, 17, .08);
  border-color: var(--primary);
}

.auth-page .form-check-input:checked {
  background-color: var(--primary);
  border-color: var(--primary);
}

.auth-page #password-strength {
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: .5rem;
}

.auth-page .progress {
  height: 8px;
  background: #f1f1f1;
  flex: 1;
  border-radius: 4px;
}

.auth-page .progress-bar {
  background: var(--primary) !important;
  border-radius: 4px;
}

.auth-page #strength-text {
  color: var(--muted);
  min-width: 64px;
  text-align: right;
  font-size: 0.875rem;
}

.auth-page .free-pill {
  display: inline-block;
  padding: .45rem 1rem;
  border-radius: 9999px;
  background: var(--success);
  color: var(--success-text);
  border: 1px solid var(--success-border);
  font-weight: 500;
  font-size: 12px;
  line-height: 1;
}

.auth-page .free-pill-wrapper {
  text-align: center;
  margin: 1rem 0 1.5rem 0;
}

.auth-page .toast-container {
  z-index: 1080;
}

.auth-page .form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%230a0a0a' viewBox='0 0 16 16'%3E%3Cpath d='M8 12L2 6h12L8 12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px 12px;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  padding-right: 2.5rem;
  cursor: pointer;
}

.auth-page .input-group .btn {
  border-radius: 0 12px 12px 0;
  border: 1px solid var(--line);
  background: #f9fafb;
}

.auth-page .input-group .form-control {
  border-radius: 12px 0 0 12px;
}

.form-section-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 1.5rem 0 0.75rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 576px) {
  .auth-page .card-container {
    padding: 1.5rem;
    margin: 1rem;
    width: calc(100% - 2rem);
  }
}