/* Variables & Base */
:root {
  --pc-primary: #2563eb;
  --pc-success: #10b981;
  --pc-error: #ef4444;
  --pc-warning: #f59e0b;
  --pc-gray-100: #f3f4f6;
  --pc-gray-300: #d1d5db;
  --pc-gray-500: #6b7280;
  --pc-gray-800: #1f2937;
  --pc-radius: 8px;
  --pc-transition: 0.3s ease;
}

.pc-form {
  max-width: 400px;
  font-family: system-ui, sans-serif;
  direction: rtl;
}

.pc-field {
  margin-bottom: 1.5rem;
}

.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
}

 

/* Inputs & Toggle */
.pc-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.pc-input {
  width: 100%;
  padding: 0.75rem 1rem;
  padding-left: 2.5rem;
  border: 1px solid var(--pc-gray-300);
  border-radius: var(--pc-radius);
  font-size: 1rem;
  transition:
    border-color var(--pc-transition),
    box-shadow var(--pc-transition);
}

.pc-input:focus {
  outline: none;
  border-color: var(--pc-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.pc-input.is-invalid {
  border-color: var(--pc-error);
  animation: pc-shake 0.4s ease;
}

.pc-toggle-visibility {
  position: absolute;
  left: 0.75rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--pc-gray-500);
  padding: 0;
  display: flex;
  transition: color var(--pc-transition);
}

.pc-toggle-visibility:hover,
.pc-toggle-visibility:focus {
  color: var(--pc-primary);
  outline: none;
}

/* Strength Meter */
.pc-strength-meter {
  margin-bottom: 1rem;
}

.pc-strength-bar {
  height: 6px;
  background: var(--pc-gray-100);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.pc-strength-fill {
  height: 100%;
  width: 0;
  transition:
    width var(--pc-transition),
    background-color var(--pc-transition);
}

.pc-strength-text {
  font-size: 0.875rem;
  color: var(--pc-gray-500);
}

/* Requirements */
.pc-requirements {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem 0;
  font-size: 0.875rem;
  color: var(--pc-gray-500);
}

.pc-requirements li {
  padding: 0.25rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color var(--pc-transition);
}

.pc-requirements li::before {
  content: "✕";
  color: var(--pc-error);
  font-weight: bold;
}

.pc-requirements li.valid {
  color: var(--pc-success);
}

.pc-requirements li.valid::before {
  content: "✓";
  color: var(--pc-success);
}

/* Button State Machine */
.pc-btn {
  width: 100%;
  padding: 0.75rem;
  background: var(--pc-primary);
  color: white;
  border: none;
  border-radius: var(--pc-radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  transition:
    background var(--pc-transition),
    transform 0.1s ease;
  position: relative;
  overflow: hidden;
}

.pc-btn:hover:not(:disabled) {
  background: #1d4ed8;
}

.pc-btn:active:not(:disabled) {
  transform: scale(0.98);
}

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

.pc-btn.is-loading .pc-btn-text {
  visibility: hidden;
}

.pc-btn.is-loading .pc-btn-loader {
  display: block;
  position: absolute;
}

.pc-btn-loader {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: pc-spin 0.8s linear infinite;
  display: none;
}

.pc-btn.is-success {
  background: var(--pc-success);
}

.pc-btn.is-error {
  background: var(--pc-error);
}

/* Toasts */
.pc-toast-container {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
  width: 90%;
  max-width: 350px;
}

.pc-toast {
  background: white;
  padding: 1rem;
  border-radius: var(--pc-radius);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  pointer-events: auto;
  animation: pc-slide-in 0.3s ease forwards;
  border-right: 4px solid var(--pc-gray-300);
}

.pc-toast.is-hiding {
  animation: pc-slide-out 0.3s ease forwards;
}

.pc-toast.success {
  border-right-color: var(--pc-success);
}

.pc-toast.error {
  border-right-color: var(--pc-error);
}

.pc-toast.warning {
  border-right-color: var(--pc-warning);
}

.pc-toast-icon {
  font-size: 1.25rem;
  font-weight: bold;
}

.pc-toast-message {
  flex: 1;
  font-size: 0.9rem;
  color: var(--pc-gray-800);
}

.pc-toast-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--pc-gray-500);
  font-size: 1.2rem;
  padding: 0;
  line-height: 1;
}

/* Animations */
@keyframes pc-shake {
  0%,
  100% {
    transform: translateX(0);
  }

  20%,
  60% {
    transform: translateX(-5px);
  }

  40%,
  80% {
    transform: translateX(5px);
  }
}

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

@keyframes pc-slide-in {
  from {
    transform: translateY(-20px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes pc-slide-out {
  from {
    transform: translateY(0);
    opacity: 1;
  }

  to {
    transform: translateY(-20px);
    opacity: 0;
  }
}

.pc-requirements-wrapper {
    margin-top: 4px;
}

.pc-requirements-title {
    font-size: 0.75rem;
    color: #6b7280;
    margin: 10px 0 4px;
    font-weight: 500;
}

.pc-requirements-title--optional {
    display: flex;
    align-items: center;
    gap: 6px;
    opacity: 0.85;
}

.pc-optional-badge {
    display: inline-block;
    font-size: 10px;
    padding: 1px 7px;
    border-radius: 999px;
    background: rgba(107, 114, 128, 0.12);
    color: #6b7280;
    line-height: 1.6;
}

/* لیست اختیاری: کم‌رنگ‌تر و بدون حس "خطا"ی قرمز برای حالت invalid */
.pc-suggestions {
    opacity: 0.8;
}
.pc-suggestions li.invalid {
    color: #9ca3af; /* خاکستری به‌جای قرمز */
}

.pc-suggestions li.invalid::before {
    color: #9ca3af;
}