:root {
  --primary-color: #007bff;
  --primary-color-hover: #0056b3;
  --secondary-color: #330033;
  --background-color: #f0f2f5;
  --card-background: transparent;
  --text-color: #333;
  --input-border-color: #ddd;
  --input-focus-border: #80bdff;
  --danger-color: #dc3545;
  --font-family-arabic: "Noto Naskh Arabic", sans-serif;
  --font-family-roboto: "Roboto", sans-serif;
  --vh: 1vh;
  /* متغيرات جديدة لزر التبديل */
  --hue: 223;
  --trans-dur: 0.3s;
  --trans-timing: cubic-bezier(0.65, 0, 0.35, 1);
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 100vh;
  min-height: calc(var(--vh, 1vh) * 100);
}

body {
  font-family: var(--font-family-arabic), var(--font-family-roboto);
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--background-color);
  position: relative;
  overflow: hidden;
}

/* Background Animation */
.background-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.background-blob {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  opacity: 0.6;
  filter: blur(150px);
  animation: float-effect 12s infinite ease-in-out;
}

.background-blob.top-left {
  background: linear-gradient(135deg, #fad0c4, #ff9a8b);
  top: -100px;
  left: -100px;
}

.background-blob.bottom-right {
  background: linear-gradient(45deg, #b5b2ff, #68bbe3);
  bottom: -100px;
  right: -100px;
  animation-delay: 3s;
}

@keyframes float-effect {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(30px, 30px);
  }
}

/* Login Card */
.login-card {
  background-color: var(--card-background);
  padding: clamp(1.5rem, 5vw, 2.5rem);
  border-radius: 12px;
  box-shadow: none;
  backdrop-filter: blur(15px);
  border: none;
  text-align: center;
  width: clamp(280px, 80%, 340px);
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

/* New H1 Styling */
.login-card h1 {
  margin: 0 0 0.5rem 0;
  color: var(--text-color);
  font-size: clamp(1.7rem, 4.5vw, 2.2rem);
}

.login-card h2 {
  margin: 0 0 1.5rem 0;
  color: var(--text-color);
  font-size: clamp(0.85rem, 2.25vw, 1.1rem);
}

/* Form Elements */
.login-form {
  width: 100%;
  direction: rtl;
}

.input-group {
  margin-bottom: clamp(0.75rem, 2vw, 1.25rem);
  text-align: right;
}

.input-group input {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--input-border-color);
  border-radius: 8px;
  font-size: 16px;
  box-sizing: border-box;
  background-color: rgba(255, 255, 255, 0.2);
  transition:
    border-color 0.3s ease,
    box-shadow 0.3s ease;
  min-height: 48px;
}

.input-group input:focus {
  outline: none;
  border: 1px solid var(--input-focus-border);
  box-shadow: none;
}

.input-group input.is-invalid {
  border-color: var(--danger-color);
}

.input-group .help-block {
  color: var(--danger-color);
  font-size: clamp(0.75rem, 2.5vw, 0.9rem);
  margin-top: 0.25rem;
  display: block;
}

.password-group {
  position: relative;
}

.password-group .form-control {
  padding-left: 2.5rem;
}

.toggle-password {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  display: flex;
  align-items: center;
  margin-bottom: 0;
}

.alert-danger {
  color: #721c24;
  background-color: #f8d7da;
  border: 1px solid #f5c6cb;
  padding: clamp(0.5rem, 2vw, 0.75rem);
  margin-bottom: 1.5rem;
  border-radius: 8px;
  text-align: right;
  font-size: clamp(0.9rem, 3vw, 1rem);
}

.options-group {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

.options-group label {
  font-size: clamp(0.9rem, 3vw, 1rem);
  cursor: pointer;
  margin: 0 0.5rem 0 0;
}

.btn {
  width: 100%;
  padding: 0.8rem;
  border-radius: 8px;
  font-size: clamp(1rem, 3.5vw, 1.2rem);
  font-weight: 500;
  cursor: pointer;
  background-color: var(--primary-color);
  color: #fff;
  border: none;
  transition:
    background-color 0.3s ease,
    box-shadow 0.3s ease;
  text-align: center;
  min-height: 48px;
  box-sizing: border-box;
}

.btn:hover {
  background-color: var(--primary-color-hover);
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.back-link {
  display: block;
  width: 100%;
  padding: 0.6rem;
  margin-top: 1rem;
  font-size: clamp(0.9rem, 3.5vw, 1rem);
  color: var(--secondary-color);
  text-decoration: none;
  border: 1px solid rgba(51, 0, 51, 0.2);
  border-radius: 8px;
  background-color: transparent;
  transition: background-color 0.3s ease;
  min-height: 48px;
  box-sizing: border-box;
}

.back-link:hover {
  background-color: rgba(51, 0, 51, 0.1);
}

/*
* ========================================
* Toggle Switch
* ========================================
*/
.switch {
  position: relative;
  width: 3em;
  height: 1.5em;
  direction: ltr;
  -webkit-tap-highlight-color: transparent;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.switch__input {
  background-color: hsla(var(--hue), 90%, 50%, 0);
  border-radius: 1.5em;
  box-shadow:
    0 0 0 0.0625em rgba(51, 0, 51, 0.5) inset,
    0 0.25em 1em hsla(var(--hue), 90%, 10%, 0);
  cursor: pointer;
  display: block;
  outline: transparent;
  width: 100%;
  height: 100%;
  transition:
    background-color var(--trans-dur) var(--trans-timing),
    box-shadow var(--trans-dur) var(--trans-timing);
  -webkit-appearance: none;
  appearance: none;
}

.switch__input:before,
.switch__input:after {
  content: "";
  display: block;
}

.switch__input:before {
  background-color: hsl(0, 0%, 100%);
  border-radius: 50%;
  box-shadow: 0 0.125em 0.25em hsla(var(--hue), 90%, 10%, 0);
  transition:
    box-shadow var(--trans-dur) var(--trans-timing),
    transform var(--trans-dur) var(--trans-timing);
  position: absolute;
  top: 50%;
  left: 9px; /* تحريك الدائرة عند البدء 5 بكسل من اليسار */
  width: 1.2em;
  height: 1.2em;
  transform: translateY(-50%);
  border: 1px solid #ddd; /* إضافة إطار رمادي فاتح */
}

.switch__input:after {
  border-radius: 0.75em;
  box-shadow: 0 0 0 0.125em hsla(var(--hue), 90%, 70%, 0);
  width: 100%;
  height: 100%;
  transition: box-shadow 0.15s linear;
}

.switch__input:focus-visible:after {
  box-shadow: 0 0 0 0.125em hsla(var(--hue), 90%, 70%, 1);
}

.switch__check {
  display: none;
}

.switch__check-line {
  display: none;
}

.switch__input:checked {
  background-color: #22c55e;
  box-shadow:
    0 0 0 0.0625em #22c55e inset,
    0 0.25em 1em hsla(var(--hue), 90%, 10%, 0);
}

.switch__input:checked:before {
  box-shadow: none; /* إزالة الظل عند التفعيل */
  transform: translate(1.4em, -50%);
  border: none; /* إزالة الإطار عند التفعيل */
}

.switch__input:checked + .switch__check {
  animation: switch-check var(--trans-dur) var(--trans-timing);
  transform: translateX(1.5em) rotate(-225deg);
}

.switch__input:checked + .switch__check .switch__check-line {
  stroke: var(--primary-color-hover);
  stroke-dashoffset: 0;
  transform: translate(-1px, -1px);
  transition-delay: 0s, calc(var(--trans-dur) / 2), 0s;
}

.switch__sr {
  overflow: hidden;
  position: absolute;
  width: 1px;
  height: 1px;
}

/* Dark theme */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: hsl(var(--hue), 90%, 10%);
    --fg: hsl(var(--hue), 90%, 90%);
  }
}

/* Animations */
@keyframes switch-check {
  from {
    transform: translateX(0) rotate(0);
  }
  to {
    transform: translateX(1.5em) rotate(135deg);
  }
}