:root {
  --auth-bg-overlay: rgba(0, 0, 0, 0.85);
  --auth-card-bg: #000000;
  --auth-border-color: rgba(255, 255, 255, 0.05);
  --auth-primary-neon: #8b0000;
  --auth-secondary-neon: #5a0000;
  --auth-primary-glow: rgba(139, 0, 0, 0.4);
  --auth-text-main: #f8fafc;
  --auth-text-muted: #94a3b8;
  --auth-input-bg: rgba(10, 10, 10, 0.8);
  --auth-font: "Cairo", "Poppins", sans-serif;
}

body:has(.auth-overlay.active),
body.auth-modal-open {
  overflow: hidden !important;
}

.karh-trigger-btn {
  background: var(--auth-primary-neon);
  color: #fff;
  border: none;
  padding: 12px 24px;
  font-family: var(--auth-font);
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
}
.karh-trigger-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px var(--auth-primary-glow);
}

.auth-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--auth-bg-overlay);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition:
    opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    visibility 0.4s;
  direction: rtl;
  padding: 20px;
  box-sizing: border-box;
}

.auth-overlay.active {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
}

.auth-modal-card {
  position: relative;
  background: var(--auth-card-bg);
  border: 1px solid var(--auth-border-color);
  box-shadow:
    0 20px 50px rgba(0, 0, 0, 0.8),
    inset 0 1px 1px rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  width: 100%;
  max-width: 440px;
  padding: 40px 30px;
  box-sizing: border-box;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.auth-overlay.active .auth-modal-card {
  transform: scale(1) translateY(0);
  animation: subtleFloat 6s ease-in-out infinite alternate;
  animation-delay: 0.4s;
}

@keyframes subtleFloat {
  0% {
    transform: scale(1) translateY(0);
  }
  100% {
    transform: scale(1) translateY(-8px);
  }
}

.auth-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--auth-text-muted);
  cursor: pointer;
  padding: 5px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background-color 0.2s,
    color 0.2s;
  z-index: 10;
}
.auth-close-btn:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--auth-primary-neon);
}

.auth-header {
  text-align: center;
  margin-bottom: 25px;
}
.auth-logo {
  font-family: var(--auth-font);
  font-size: 28px;
  font-weight: 800;
  color: var(--auth-text-main);
  letter-spacing: 1px;
}
.auth-logo .logo-accent {
  background: linear-gradient(
    135deg,
    var(--auth-primary-neon),
    var(--auth-secondary-neon)
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 8px var(--auth-primary-glow));
}
.auth-subtitle {
  font-family: var(--auth-font);
  font-size: 13px;
  color: var(--auth-text-muted);
  margin-top: 6px;
}

.auth-tabs {
  display: flex;
  background: rgba(255, 255, 255, 0.02);
  padding: 4px;
  border-radius: 10px;
  margin-top: 25px;
  border: 1px solid var(--auth-border-color);
}
.auth-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--auth-text-muted);
  font-family: var(--auth-font);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 0;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
}
.auth-tab.active {
  background: linear-gradient(
    135deg,
    var(--auth-primary-neon),
    var(--auth-secondary-neon)
  );
  color: #fff;
  box-shadow: 0 4px 15px var(--auth-primary-glow);
}

.auth-slider-container {
  display: grid;
  grid-template-columns: 1fr;
  position: relative;
  width: 100%;
  overflow: hidden;
}

.auth-panel {
  grid-column: 1;
  grid-row: 1;
  width: 100%;
  box-sizing: border-box;
  padding: 10px 4px;
  transition:
    transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
    opacity 0.4s ease;
}

#panelLogin {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}

#panelRegister {
  transform: translateX(100%);
  opacity: 0;
  pointer-events: none;
}

.auth-slider-container.show-register #panelLogin {
  transform: translateX(-100%);
  opacity: 0;
  pointer-events: none;
}

.auth-slider-container.show-register #panelRegister {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}

html[dir="rtl"] #panelRegister {
  transform: translateX(-100%);
}

html[dir="rtl"] .auth-slider-container.show-register #panelLogin {
  transform: translateX(100%);
}

.auth-input-group {
  position: relative;
  margin-bottom: 22px;
}
.auth-input {
  width: 100%;
  padding: 16px 14px;
  background: var(--auth-input-bg);
  border: 1px solid var(--auth-border-color);
  border-radius: 10px;
  color: var(--auth-text-main);
  font-family: var(--auth-font);
  font-size: 14px;
  transition:
    border-color 0.3s,
    box-shadow 0.3s;
  box-sizing: border-box;
  direction: ltr;
  text-align: left;
}
.auth-input:focus {
  border-color: var(--auth-primary-neon);
  box-shadow: 0 0 12px var(--auth-primary-glow);
  outline: none;
}

.auth-label {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--auth-font);
  font-size: 13px;
  color: var(--auth-text-muted);
  pointer-events: none;
  transition: all 0.25s ease;
}

.auth-input:focus ~ .auth-label,
.auth-input:not(:placeholder-shown) ~ .auth-label {
  top: 0;
  font-size: 11px;
  color: var(--auth-primary-neon);
  background: #000000;
  padding: 0 6px;
  border-radius: 4px;
}

.auth-error-text {
  display: block;
  color: #ef4444;
  font-family: var(--auth-font);
  font-size: 11px;
  margin-top: 4px;
  text-align: right;
  min-height: 14px;
}

.auth-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--auth-font);
  font-size: 12px;
  margin-bottom: 22px;
}
.auth-remember {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--auth-text-muted);
  cursor: pointer;
}
.auth-remember input {
  accent-color: var(--auth-primary-neon);
  cursor: pointer;
}
.auth-forgot-link {
  color: var(--auth-text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.auth-forgot-link:hover {
  color: var(--auth-primary-neon);
}

.auth-submit-btn {
  position: relative;
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(
    135deg,
    var(--auth-primary-neon),
    var(--auth-secondary-neon)
  );
  color: #fff;
  font-family: var(--auth-font);
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.2s;
  box-shadow: 0 4px 15px var(--auth-primary-glow);
}
.auth-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--auth-primary-glow);
}
.auth-submit-btn:active {
  transform: translateY(1px);
}
.auth-submit-btn .btn-glow {
  position: absolute;
  top: 0;
  left: -50%;
  width: 200%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.15),
    transparent
  );
  transition: 0.5s;
  transform: skewX(-20deg);
}
.auth-submit-btn:hover .btn-glow {
  left: 120%;
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-6px);
  }
  75% {
    transform: translateX(6px);
  }
}
.shake-animation {
  animation: shake 0.3s ease-in-out;
}

@media (max-width: 480px) {
  .auth-overlay {
    padding: 10px;
  }
  .auth-modal-card {
    padding: 30px 20px 25px 20px;
    max-height: 95vh;
    overflow-y: auto;
    border-radius: 16px;
    animation: none;
  }
  .auth-logo {
    font-size: 24px;
  }
  .auth-subtitle {
    font-size: 11px;
  }
}

body.login-page-body {
  background-color: #0c0c0f !important;
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  min-height: 100vh !important;
  margin: 0 !important;
  font-family: var(--auth-font) !important;
  overflow: auto !important;
}

body.login-page-body .auth-overlay {
  position: relative !important;
  width: 100% !important;
  height: auto !important;
  min-height: 100vh !important;
  background: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  opacity: 1 !important;
  visibility: visible !important;
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  pointer-events: auto !important;
  z-index: 1 !important;
  padding: 20px !important;
  transition: none !important;
}

body.login-page-body .auth-close-btn {
  display: none !important;
}

body.login-page-body .auth-modal-card {
  transform: scale(1) translateY(0) !important;
  animation: none !important;
}

.auth-back-home {
  text-align: center;
  margin-top: 25px;
}

.auth-back-home a {
  color: var(--auth-text-muted);
  text-decoration: none;
  font-family: var(--auth-font);
  font-size: 13px;
  transition: color 0.3s;
}

.auth-back-home a:hover {
  color: var(--auth-primary-neon);
  text-shadow: 0 0 8px var(--auth-primary-glow);
}

.password-group .auth-input {
  padding-right: 42px;
}
.password-group .auth-label {
  right: 42px;
}
.password-group .auth-input:focus ~ .auth-label,
.password-group .auth-input:not(:placeholder-shown) ~ .auth-label {
  right: 14px;
}
.password-toggle-btn {
  position: absolute;
  right: 14px;
  top: 25px;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--auth-text-muted);
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  height: 20px;
  width: 20px;
  transition: color 0.2s;
}
.password-toggle-btn:hover {
  color: var(--auth-primary-neon);
}