/* ============================================================
   Valoex — Auth Page Styles
   Premium login/signup screen with glassmorphism and animations
   ============================================================ */

/* ── Auth Page Container ── */
.auth-page {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: var(--space-4);
}

/* ── Animated Background ── */
.auth-bg {
  position: fixed;
  inset: 0;
  background: linear-gradient(145deg,
    var(--md-surface-container-low) 0%,
    var(--bg-page) 50%,
    var(--md-surface-container) 100%
  );
  z-index: -1;
}

.auth-bg-circle {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  animation: authFloat 12s ease-in-out infinite;
}

.auth-bg-circle-1 {
  width: 400px; height: 400px;
  background: var(--md-primary);
  top: -100px; right: -80px;
  animation-delay: 0s;
}

.auth-bg-circle-2 {
  width: 300px; height: 300px;
  background: var(--brand-secondary, #7C4DFF);
  bottom: -60px; left: -60px;
  animation-delay: -4s;
}

.auth-bg-circle-3 {
  width: 200px; height: 200px;
  background: var(--md-tertiary, #FF6B9D);
  top: 40%; left: 50%;
  animation-delay: -8s;
}

@keyframes authFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(20px, -30px) scale(1.05); }
  50% { transform: translate(-15px, 15px) scale(0.95); }
  75% { transform: translate(10px, 20px) scale(1.02); }
}

/* ── Container ── */
.auth-container {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

/* ── Logo ── */
.auth-logo {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.auth-logo-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--md-primary), var(--brand-secondary, #7C4DFF));
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow:
    0 8px 32px rgba(103,80,164,0.35),
    0 0 0 6px rgba(103,80,164,0.08);
  animation: logoPulse 3s ease-in-out infinite;
}

@keyframes logoPulse {
  0%, 100% { box-shadow: 0 8px 32px rgba(103,80,164,0.35), 0 0 0 6px rgba(103,80,164,0.08); }
  50%      { box-shadow: 0 12px 40px rgba(103,80,164,0.45), 0 0 0 10px rgba(103,80,164,0.12); }
}

.auth-brand {
  font: 700 36px/42px var(--font-family);
  color: var(--text-primary);
  letter-spacing: -1px;
}

.auth-brand span {
  color: var(--md-primary);
}

.auth-tagline {
  font: var(--text-body-md);
  color: var(--text-secondary);
}

/* ── Card (Glassmorphism) ── */
.auth-card {
  width: 100%;
  background: color-mix(in srgb, var(--bg-card) 80%, transparent);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-3xl);
  padding: var(--space-8) var(--space-6);
  box-shadow:
    0 8px 32px rgba(0,0,0,0.08),
    0 1px 0 rgba(255,255,255,0.06) inset;
  transition: opacity 250ms ease, transform 250ms ease;
}

.auth-card-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.auth-card-header h2 {
  font: 700 24px/30px var(--font-family);
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.auth-card-header p {
  font: var(--text-body-md);
  color: var(--text-secondary);
  margin-top: var(--space-1);
}

/* ── Form Fields ── */
.auth-field {
  margin-bottom: var(--space-4);
}

.auth-field label {
  display: block;
  font: var(--text-label-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.auth-field input {
  width: 100%;
  height: 52px;
  padding: 0 var(--space-4);
  background: var(--md-surface-container);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-xl);
  font: var(--text-body-lg);
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.auth-field input:focus {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 3px rgba(103,80,164,0.15);
}

.auth-field input::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

/* Password wrapper */
.auth-password-wrap {
  position: relative;
}

.auth-password-wrap input {
  padding-right: 48px;
}

.auth-toggle-pw {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
  background: none;
  border: none;
}

.auth-toggle-pw:hover {
  background: var(--md-surface-container-highest);
  color: var(--text-primary);
}

/* ── Actions Row ── */
.auth-actions-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

/* ── Manter-me conectado ── */
.auth-remember {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font: var(--text-label-md);
  color: var(--text-secondary);
  user-select: none;
}
.auth-remember input {
  appearance: none;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm, 6px);
  background: var(--md-surface-container-low);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.auth-remember input:checked {
  background: var(--md-primary);
  border-color: var(--md-primary);
  /* Marca desenhada em SVG para não depender de fonte de ícone. */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: 13px;
  background-position: center;
  background-repeat: no-repeat;
}
.auth-remember input:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: 2px;
}

.auth-link {
  font: var(--text-label-md);
  color: var(--md-primary);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.auth-link:hover { opacity: 0.8; }

/* ── Submit Button ── */
.auth-submit-btn {
  width: 100%;
  height: 52px;
  background: linear-gradient(135deg, var(--md-primary), var(--brand-secondary, #7C4DFF));
  color: white;
  border: none;
  border-radius: var(--radius-xl);
  font: 600 16px/24px var(--font-family);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
  box-shadow: 0 4px 16px rgba(103,80,164,0.3);
  position: relative;
}

.auth-submit-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(103,80,164,0.4);
}

.auth-submit-btn:active:not(:disabled) {
  transform: translateY(0);
}

.auth-submit-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* Spinner */
.auth-spinner {
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: authSpin 0.6s linear infinite;
}

.auth-spinner.hidden { display: none; }

@keyframes authSpin {
  to { transform: rotate(360deg); }
}

/* ── Divider ── */
.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: var(--space-5) 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

.auth-divider span {
  font: var(--text-label-sm);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

/* ── OAuth Providers ── */
.auth-providers {
  display: flex;
  gap: var(--space-3);
}

.auth-provider-btn {
  flex: 1;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  background: var(--md-surface-container);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-xl);
  font: 500 14px/20px var(--font-family);
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.auth-provider-btn:hover {
  background: var(--md-surface-container-high);
  border-color: var(--md-outline);
  transform: translateY(-1px);
}

.auth-provider-btn:active {
  transform: translateY(0);
}

/* ── Switch mode link ── */
.auth-switch {
  text-align: center;
  margin-top: var(--space-5);
  font: var(--text-body-md);
  color: var(--text-secondary);
}

.auth-switch a {
  color: var(--md-primary);
  font-weight: 600;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.auth-switch a:hover { opacity: 0.8; }

/* ── Footer ── */
.auth-footer {
  text-align: center;
}

.auth-footer p {
  font: var(--text-body-sm);
  color: var(--text-secondary);
  opacity: 0.7;
}

.auth-footer a {
  color: var(--md-primary);
  text-decoration: none;
}

/* ── Slide-up animation ── */
.anim-slide-up {
  animation: authSlideUp 500ms cubic-bezier(.2,0,0,1) both;
}

.stagger-2 { animation-delay: 100ms; }
.stagger-3 { animation-delay: 200ms; }

@keyframes authSlideUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Mobile tweaks ── */
@media (max-width: 480px) {
  .auth-card {
    padding: var(--space-6) var(--space-5);
    border-radius: var(--radius-2xl);
  }

  .auth-logo-icon {
    width: 60px;
    height: 60px;
  }

  .auth-logo-icon svg {
    width: 28px;
    height: 28px;
  }

  .auth-brand {
    font-size: 30px;
  }

  .auth-bg-circle-1 { width: 250px; height: 250px; }
  .auth-bg-circle-2 { width: 200px; height: 200px; }
  .auth-bg-circle-3 { width: 150px; height: 150px; }
}