/**
 * @file   assets/css/auth.css
 * @brief  Authentication styles for login and registration pages
 */

/* ============================================================
   AUTH.CSS — Login & Register pages
   ============================================================ */
.auth-page {
  min-height: 100vh;
  background: linear-gradient(135deg, #0f1728 0%, #1a2744 50%, #0f2040 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1rem;
  position: relative;
  overflow: hidden;
}
.auth-page::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(
    circle,
    rgba(59, 111, 240, 0.12),
    transparent 65%
  );
  pointer-events: none;
}
.auth-page::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.1), transparent 65%);
  pointer-events: none;
}
.auth-card {
  background: #fff;
  border-radius: 1.25rem;
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.25),
    0 4px 16px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 440px;
  position: relative;
  z-index: 1;
  overflow: hidden;
}
.auth-card-wide {
  max-width: 560px;
}
.auth-header {
  background: linear-gradient(135deg, #3b6ff0, #2954cc);
  padding: 2rem 2.25rem 1.75rem;
  text-align: center;
}
.auth-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 0.875rem;
  margin-bottom: 0.875rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  overflow: hidden;
}
.auth-logo img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}
.auth-header h1 {
  color: #fff;
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
  letter-spacing: -0.4px;
}
.auth-header p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.8rem;
  margin: 0;
}
.auth-body {
  padding: 2rem 2.25rem;
}
.auth-footer {
  text-align: center;
  padding: 0 2.25rem 1.75rem;
  font-size: 0.8rem;
  color: #6b7280;
}

/* Step bar */
.steps-bar {
  display: flex;
  padding: 1.1rem 2.25rem;
  gap: 0;
  background: #f9fafb;
  border-bottom: 1px solid #e5e7eb;
}
.reg-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  position: relative;
}
.reg-step::before {
  content: "";
  position: absolute;
  top: 13px;
  left: 50%;
  right: -50%;
  height: 2px;
  background: #e5e7eb;
  z-index: 0;
}
.reg-step:last-child::before {
  display: none;
}
.reg-step.done::before {
  background: var(--primary);
}
.reg-step.active::before {
  background: linear-gradient(90deg, var(--primary), #e5e7eb);
}
.step-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #e5e7eb;
  color: #9ca3af;
  font-size: 0.72rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  transition: all 0.2s;
}
.reg-step.done .step-dot {
  background: var(--primary);
  color: #fff;
}
.reg-step.active .step-dot {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 0 0 4px rgba(59, 111, 240, 0.2);
}
.step-text {
  font-size: 0.68rem;
  font-weight: 600;
  color: #9ca3af;
  white-space: nowrap;
}
.reg-step.active .step-text {
  color: var(--primary);
}
.reg-step.done .step-text {
  color: #374151;
}

/* Code verified banner */
.code-verified {
  background: #ecfdf5;
  border: 1px solid #bbf7d0;
  border-radius: 0.55rem;
  padding: 0.75rem 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.8rem;
  color: #065f46;
  margin-bottom: 1rem;
}

/* Position toggle */
.position-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.625rem;
}
.position-option input[type="radio"] {
  display: none;
}
.position-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem;
  background: #f9fafb;
  border: 1.5px solid #e5e7eb;
  border-radius: 0.55rem;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  color: #6b7280;
  transition: all 0.2s;
}
.position-label:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: #eff6ff;
}
.position-option input:checked + .position-label {
  border-color: var(--primary);
  background: #eff6ff;
  color: var(--primary);
}
.position-option input:disabled + .position-label {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Slot status */
.slot-status {
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 0.55rem;
  padding: 0.55rem 0.875rem;
  margin-top: 0.4rem;
  font-size: 0.75rem;
  display: flex;
  gap: 1rem;
}
.slot-free {
  color: var(--success);
  font-weight: 600;
}
.slot-taken {
  color: var(--danger);
  font-weight: 600;
}

/* Spinner */
.spinner-sm {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 480px) {
  .auth-body {
    padding: 1.5rem 1.25rem;
  }
  .auth-header {
    padding: 1.5rem 1.25rem;
  }
  .auth-footer {
    padding: 0 1.25rem 1.25rem;
  }
  .steps-bar {
    padding: 0.875rem 1.25rem;
  }
}