/* ===== GENERAL & LAYOUT ===== */
#loginMessage,
#restoreMessage {
  min-height: var(--message-height, 85px);
  transition: min-height 0.3s ease-in-out;
}

/* ===== AUTHENTICATION CARD & ANIMATION ===== */
.auth-card {
  /* Visuals */
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  box-shadow:
    0 20px 40px rgba(0, 0, 0, 0.2),
    var(--shadow-md);
  max-width: 500px;
  width: 100%;
  overflow: hidden;
  margin-top: 10px;
  margin-bottom: 40px;

  /* Animation State (Visible) */
  opacity: 1;
  visibility: visible;
  max-height: 600px; /* Adjust based on max content height */
  transform: translateY(0) scale(1);
  transform-origin: center;

  /* Performance & Transitions */
  will-change: transform, opacity, max-height;
  transition:
    opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.8s cubic-bezier(0.4, 0, 0.2, 1),
    max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1),
    border-radius 0.8s cubic-bezier(0.4, 0, 0.2, 1),
    visibility 0s linear;
}

.auth-card.collapsed {
  opacity: 0;
  visibility: hidden;
  max-height: 2px;
  pointer-events: none;
  margin: 0;
  padding: 0;
  border-radius: 100px; /* Fully rounded when collapsed to a line */
  transform: translateY(-15px) scaleX(0.3) scaleY(0.02);

  /* Different transition for hiding animation with delays */
  transition:
    opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1) 0.2s,
    transform 0.8s cubic-bezier(0.4, 0, 0.2, 1),
    max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.1s,
    border-radius 0.8s cubic-bezier(0.4, 0, 0.2, 1),
    visibility 0s linear 0.8s; /* Hide after animation completes */
}

/* ===== TOGGLE BUTTON ===== */
.auth-toggle-container {
  text-align: center;
  margin: 30px 0;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.8s ease;
}

.auth-toggle-container.show {
  opacity: 1;
  transform: translateY(0);
}

.auth-toggle-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 320px;
  padding: 1.2rem 3.5rem 1.2rem 2.5rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none;
  border-radius: 8px;
  color: white;
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 1px;
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
  transition: all 0.3s ease;
  overflow: hidden;
  cursor: pointer;
}

.auth-toggle-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(102, 126, 234, 0.4);
  background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

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

.auth-toggle-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.8s;
}

.auth-toggle-btn:hover::before {
  left: 100%;
}

.auth-toggle-btn i {
  position: absolute;
  right: 1.5rem;
  transition: transform 0.3s ease;
}

.auth-toggle-btn.show-auth i {
  transform: rotate(180deg);
}

.auth-toggle-btn.pulse {
  animation: pulse-auth 2s infinite;
}

/* ===== STATUS INDICATOR ===== */
.auth-status-indicator {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 25px;
  font-size: 0.9em;
  font-weight: 500;
  transition: all 0.3s ease;
  cursor: pointer;
}

.auth-status-indicator:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-float);
}

.auth-status-indicator i {
  font-size: 1.2rem;
  animation: statusPulse 2s ease-in-out infinite;
}

.auth-status-indicator.authenticated {
  background: rgba(76, 217, 100, 0.2);
  color: #4cd964;
  border: 1px solid rgba(76, 217, 100, 0.3);
}

.auth-status-indicator.unauthenticated {
  background: rgba(255, 193, 7, 0.1);
  color: #ffc107;
  border: 1px solid rgba(255, 193, 7, 0.2);
}

/* ===== BUTTONS (3D) ===== */
.btn-3d {
  --btn-bg: transparent;
  --btn-shadow: transparent;
  position: relative;
  padding: 15px 30px;
  background: var(--btn-bg);
  color: white;
  border: none;
  border-radius: 8px;
  box-shadow: 0 6px 20px var(--btn-shadow);
  font-size: 1.1rem;
  font-weight: 600;
  transition: var(--transition-base);
  overflow: hidden;
  cursor: pointer;
}
.btn-3d:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px var(--btn-shadow);
  color: white;
}
.btn-3d::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s;
}
.btn-3d:hover::before {
  left: 100%;
}
.btn-3d::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition:
    width 0.6s,
    height 0.6s;
}
.btn-3d:active::after {
  width: 300px;
  height: 300px;
}
.btn-primary-3d {
  --btn-bg: var(--gradient-primary);
  --btn-shadow: var(--color-primary-shadow);
}
.btn-success-3d {
  --btn-bg: linear-gradient(
    135deg,
    var(--color-accent),
    var(--color-accent-dark)
  );
  --btn-shadow: var(--color-accent-shadow);
}
.btn-logout-3d {
  --btn-bg: linear-gradient(
    135deg,
    var(--color-danger-dark),
    var(--color-danger)
  );
  --btn-shadow: var(--color-danger-shadow);
  width: 100%;
}

/* ===== FORMS, INPUTS & TABS ===== */
.auth-body {
  padding: 20px 30px 50px;
}

.auth-forms-wrapper {
  position: relative;
  min-height: 275px;
}
.form-section {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease-in-out;
}
.form-section.active {
  opacity: 1;
  pointer-events: auto;
}
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--color-text);
}
.input-group-text {
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  border: 2px solid #e9ecef;
  border-right: none;
  color: var(--text-secondary);
  border-radius: 12px 0 0 12px;
}
.form-control {
  padding: 15px 20px;
  font-size: 1rem;
  background: white;
  border: 2px solid #e9ecef;
  border-radius: 0 12px 12px 0;
  transition: var(--transition-base);
}
.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.2rem rgba(41, 128, 185, 0.25);
  background: white;
}
.input-group:focus-within .input-group-text,
.input-group:focus-within .form-control {
  border-color: rgba(13, 110, 253, 0.4);
  box-shadow: 0 0 0 0.05rem rgba(13, 110, 253, 0.08);
  outline: none;
  transition: var(--transition-fast);
}
.tab-switcher {
  margin-bottom: 30px;
}
.tab-nav {
  position: relative;
  display: flex;
  padding: 5px;
  background: #f8f9fa;
  border-radius: 15px;
}
.tab-nav input[type="radio"] {
  display: none;
}
.tab-label {
  flex: 1;
  position: relative;
  z-index: 1;
  padding: 15px 20px;
  color: var(--text-secondary);
  font-weight: 500;
  text-align: center;
  transition: color 0.3s ease;
  cursor: pointer;
}
.tab-label:hover {
  color: var(--color-primary);
}
#tabLogin:checked + .tab-label,
#tabRestore:checked + .tab-label {
  color: white;
}
.tab-slider {
  position: absolute;
  top: 5px;
  left: 5px;
  height: calc(100% - 10px);
  width: calc(50% - 5px);
  background: var(--gradient-primary);
  border-radius: 8px;
  box-shadow: 0 4px 10px var(--color-primary-shadow);
  transition:
    transform 0.5s cubic-bezier(0.34, 1.5, 0.64, 1),
    background 0.5s ease;
}
#tabRestore:checked ~ .tab-slider {
  transform: translateX(100%);
  background: linear-gradient(
    135deg,
    var(--color-accent),
    var(--color-accent-dark)
  );
  box-shadow: 0 4px 10px var(--color-accent-shadow);
}

/* ===== ANIMATIONS ===== */
@keyframes pulse-auth {
  0%,
  100% {
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
  }
  50% {
    box-shadow:
      0 8px 25px rgba(102, 126, 234, 0.6),
      0 0 0 10px rgba(102, 126, 234, 0.1);
  }
}

@keyframes statusPulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.8;
  }
}

/* ===== MEDIA QUERIES ===== */
@media (max-width: 768px) {
  .auth-toggle-btn {
    min-width: 100%;
  }
  .auth-card {
    /* margin: 20px; */
  }
  .auth-body {
    padding-bottom: 50px;
  }
  .tab-label {
    padding: 12px 15px;
    font-size: 0.9rem;
  }
}

@media (max-width: 576px) {
  .auth-body {
    padding-bottom: 50px;
  }
}