/* ==============================================================================
   OVERLAY & LOGIN WINDOW (Sleek Matte HUD)
   ============================================================================== */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-smooth);
}

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

.login-card {
  background-color: var(--card-matte);
  border: 1px solid var(--border-matte);
  width: 100%;
  max-width: 560px;
  padding: 36px 40px;
  border-radius: var(--radius);
  text-align: center;
  transform: scale(0.95);
  transition: var(--transition-smooth);
}

.overlay.active .login-card {
  transform: scale(1);
}

.logo-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.login-avatar-img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: 12px;
}

.login-header h1 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.login-header p {
  color: var(--text-secondary);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}

.login-tabs {
  display: flex;
  gap: 0;
  margin: 20px 0 16px;
  border-bottom: 1px solid var(--border-matte);
}

.login-tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 0;
  cursor: pointer;
  transition:
    color 0.2s,
    border-color 0.2s;
  margin-bottom: -1px;
}

.login-tab-btn.active {
  color: var(--color-white);
  border-bottom-color: var(--color-white);
}

.login-tab-pane {
  display: none;
}

.login-tab-pane.active {
  display: block;
}

.reg-group-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  border-left: 2px solid var(--border-matte);
  padding-left: 8px;
  margin: 22px 0 12px;
  text-align: left;
}

.btn-field-info {
  background: transparent;
  border: none;
  padding: 0;
  margin-left: 4px;
  cursor: pointer;
  color: var(--text-secondary);
  vertical-align: middle;
  line-height: 1;
  transition: color 0.15s;
}

.btn-field-info:hover {
  color: var(--color-white);
}

.btn-field-info .material-symbols-outlined {
  font-size: 0.95rem;
}

/* ==============================================================================
   FORM CONTROLS & INPUTS (Minimal Matte Styling)
   ============================================================================== */
.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.field-sub {
  display: block;
  font-size: 0.7rem;
  color: var(--color-zinc-muted);
  margin-top: 4px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  outline: none;
  transition: var(--transition-smooth);
  white-space: nowrap;
}

.btn-icon-symbol {
  font-size: 1rem;
  line-height: 1;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-primary {
  background-color: var(--accent-cyan);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background-color: var(--accent-cyan-hover);
}

.btn-secondary {
  background-color: transparent;
  border: 1px solid var(--border-matte);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: var(--accent-cyan-faint);
}

.btn-icon {
  background-color: transparent;
  border: 1px solid var(--border-matte);
  color: var(--text-primary);
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: bold;
  transition: var(--transition-smooth);
}

.btn-icon:hover {
  background-color: var(--accent-cyan-faint);
  border-color: var(--border-focus);
}

.error-msg {
  color: var(--color-red);
  font-size: 0.8rem;
  margin-top: 12px;
  min-height: 20px;
}

/* Badge */
.badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius);
  white-space: nowrap;
}

.badge-accent {
  background-color: var(--accent-cyan-faint);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
}

.description-text {
  font-size: 0.75rem;
  color: var(--color-zinc-muted);
  line-height: 1.4;
  margin-bottom: 12px;
}

/* ============================================================
   TOAST NOTIFICATIONS (Sonner-like)
   ============================================================ */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column-reverse;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  width: 340px;
  max-width: calc(100vw - 32px);
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border-matte);
  background-color: var(--card-matte);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  font-size: 0.83rem;
  color: var(--text-primary);
  opacity: 0;
  transform: translateY(8px) scale(0.97);
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
  pointer-events: none;
}

.toast-active {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.toast-out {
  animation: toast-fade-out 0.18s ease forwards;
}

@keyframes toast-fade-out {
  to {
    opacity: 0;
    transform: translateY(4px) scale(0.97);
  }
}

.toast-icon {
  font-size: 1.05rem;
  flex-shrink: 0;
}

.toast-success .toast-icon {
  color: var(--color-green);
}
.toast-error .toast-icon {
  color: var(--color-red);
}
.toast-warning .toast-icon {
  color: var(--accent-yellow);
}
.toast-default .toast-icon {
  color: var(--accent-cyan);
}

.toast-message {
  flex: 1;
  line-height: 1.4;
}

.toast-close {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-zinc-muted);
  display: flex;
  align-items: center;
  padding: 0;
  flex-shrink: 0;
  transition: color 0.15s;
}

.toast-close:hover {
  color: var(--text-primary);
}

.toast-close .material-symbols-outlined {
  font-size: 0.95rem;
}

/* モバイル: 下部ナビの上に出す */
@media (max-width: 768px) {
  #toast-container {
    bottom: 80px;
    right: 16px;
    left: 16px;
    width: auto;
  }
}

a:not(.menu-item):not(.btn) {
  color: var(--accent-lavender);
}

a:not(.menu-item):not(.btn):hover {
  color: var(--accent-cyan);
}