/* =========================
   AUTH PAGE — REGISTER
========================= */

.auth-page {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: calc(100vh - 180px);
  padding: var(--space-xl) var(--space-base);
  background: var(--bg-soft);
}

fieldset {
  border: none;
  padding: 0;
  margin: 0;
  min-width: 0;
}


/* =========================
   CARD
========================= */

.auth-card {
  width: 100%;
  max-width: 540px;
  background: var(--bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 5vw, 3rem);
  box-shadow: var(--shadow-lg);
  margin: var(--space-base) 0;
}


/* =========================
   BACK LINK
========================= */

.auth-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  margin-bottom: var(--space-base);
  transition: color var(--transition-fast);
}

.auth-back:hover {
  color: var(--color-primary);
}


/* =========================
   HEADER (logo)
========================= */

.auth-header {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.auth-header img {
  width: 90px;
  height: auto;
}

.auth-card h1 {
  margin: 0 0 var(--space-xs);
  text-align: center;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.auth-description {
  text-align: center;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: var(--space-lg);
}

/* Optional label text */
.form-optional {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-normal);
  margin-left: var(--space-xs);
}


/* =========================
   FORM
========================= */

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* Password wrapper for show/hide toggle */
.password-wrapper {
  position: relative;
}

.password-wrapper input {
  padding-right: 2.75rem;
}

.password-toggle {
  position: absolute;
  right: 0.65rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
  border-radius: var(--radius-sm);
}

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

.password-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.password-toggle svg {
  width: 20px;
  height: 20px;
  pointer-events: none;
}

/* Field-level validation */
.form-error {
  display: block;
  min-height: 1.1em;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-danger);
  margin-top: var(--space-xs);
}

.form-group.has-error input,
.form-group.has-error textarea,
.form-group.has-error select {
  border-color: var(--color-danger);
  background-color: var(--color-danger-bg);
  box-shadow: 0 0 0 3px rgba(255, 59, 48, .08);
}

/* Confirm password match/mismatch visual */
.form-group.match input {
  border-color: var(--color-success);
  background-color: var(--color-success-bg);
}

.form-group.mismatch input {
  border-color: var(--color-danger);
}


/* =========================
   PASSWORD STRENGTH
========================= */

.password-strength {
  margin-top: var(--space-xs);
  height: 4px;
  border-radius: var(--radius-full);
  background: var(--color-bg-tertiary);
  overflow: hidden;
}

.password-strength-bar {
  height: 100%;
  width: 0;
  border-radius: var(--radius-full);
  transition: width 0.3s ease, background-color 0.3s ease;
}

.password-strength-bar[data-strength="weak"] {
  width: 33%;
  background: var(--color-danger);
}

.password-strength-bar[data-strength="fair"] {
  width: 60%;
  background: var(--color-warning);
}

.password-strength-bar[data-strength="good"] {
  width: 80%;
  background: var(--color-success);
}

.password-strength-bar[data-strength="strong"] {
  width: 100%;
  background: var(--color-success);
}

.password-strength-label {
  display: block;
  font-size: var(--font-size-xs);
  margin-top: var(--space-xs);
  color: var(--color-text-secondary);
  min-height: 1em;
}


/* =========================
   TRAIT PILL SELECTOR
========================= */

.trait-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.trait-options label {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  margin: 0;
  padding: 0.4rem 0.8rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-bg-secondary);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
  user-select: none;
}

.trait-options label:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
}

.trait-options label:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

.trait-options label:has(input:checked)::before {
  content: "✓";
  width: 1rem;
  height: 1rem;
  flex: 0 0 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7em;
  font-weight: 800;
  line-height: 1;
}

.trait-options label:has(input:disabled) {
  cursor: not-allowed;
  opacity: 0.4;
}

.trait-options input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.trait-options label:has(input:focus-visible) {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

/* =========================
   TERMS CHECKBOX
========================= */

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.checkbox input[type="checkbox"] {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  margin-top: 0.2rem;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.checkbox a {
  color: var(--color-primary);
  text-decoration: none;
}

.checkbox a:hover {
  text-decoration: underline;
}


/* =========================
   SUBMIT BUTTON + LOADING
========================= */

.auth-submit {
  width: 100%;
  margin-top: var(--space-xs);
}

.btn-spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: var(--radius-full);
  animation: auth-spin 0.65s linear infinite;
  flex-shrink: 0;
}

.auth-submit.is-loading .btn-spinner {
  display: inline-block;
}

@keyframes auth-spin {
  to { transform: rotate(360deg); }
}


/* =========================
   ALERT BOX
========================= */

#alert {
  margin-bottom: var(--space-sm);
}

#alert:not(:empty):not([hidden]) {
  padding: var(--space-sm) var(--space-base);
  border-radius: var(--radius-base);
  font-size: var(--font-size-sm);
}

.alert-danger {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid rgba(255, 59, 48, 0.2);
}

.alert-success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid rgba(52, 199, 89, 0.25);
}


/* =========================
   FOOTER LINK
========================= */

.auth-footer {
  margin-top: var(--space-lg);
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.auth-footer a {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  margin-left: var(--space-xs);
}

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


/* =========================
   RESPONSIVE
========================= */

@media (max-width: 768px) {
  .auth-page {
    padding: var(--space-lg) var(--space-base);
  }

  .auth-card {
    padding: var(--space-lg);
    margin: 0;
  }
}

@media (max-width: 480px) {
  .auth-card {
    padding: var(--space-md) var(--space-base);
    border-radius: var(--radius-md);
    border: none;
    box-shadow: none;
    background: transparent;
  }

  .auth-page {
    background: var(--bg);
  }
}