/* ==========================================================================
   OgbonMath — Unified Dialog System (Modal + Toast)
   --------------------------------------------------------------------------
   Styles for Dialogs.confirm / Dialogs.alert / Dialogs.toast in dialogs.js.
   All use themed tokens from tokens.css — no hardcoded colors.
   ========================================================================== */

/* ==========================================================================
   Backdrop
   ==========================================================================
*/
.dlg-backdrop {
  position: fixed;
  inset: 0;
  background: var(--backdrop);
  z-index: var(--z-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-4);
  opacity: 0;
  animation: dlg-fade-in var(--dur) var(--ease-calm) forwards;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.dlg-backdrop.dlg-closing {
  animation: dlg-fade-out var(--dur-fast) var(--ease-calm) forwards;
}

@keyframes dlg-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes dlg-fade-out {
  from { opacity: 1; }
  to   { opacity: 0; }
}

/* ==========================================================================
   Modal panel
   ==========================================================================
*/
.dlg-panel {
  position: relative;
  background: var(--bg2);
  color: var(--tx);
  border-radius: var(--radius-lg);
  border: 1px solid var(--bdr);
  box-shadow: var(--shadow-xl);
  padding: var(--sp-6) var(--sp-6) var(--sp-4);
  max-width: 440px;
  width: 100%;
  z-index: var(--z-modal);
  transform: scale(0.96) translateY(8px);
  opacity: 0;
  animation: dlg-scale-in var(--dur) var(--ease-calm) forwards;
  font-family: var(--font-sans);
}

.dlg-backdrop.dlg-closing .dlg-panel {
  animation: dlg-scale-out var(--dur-fast) var(--ease-calm) forwards;
}

@keyframes dlg-scale-in {
  from { transform: scale(0.96) translateY(8px); opacity: 0; }
  to   { transform: scale(1)    translateY(0);   opacity: 1; }
}

@keyframes dlg-scale-out {
  from { transform: scale(1)    translateY(0);   opacity: 1; }
  to   { transform: scale(0.98) translateY(4px); opacity: 0; }
}

.dlg-panel.dlg-danger {
  border-top: 3px solid var(--rd);
}

/* ==========================================================================
   Content
   ==========================================================================
*/
.dlg-title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
  margin: 0 0 var(--sp-2) 0;
  color: var(--tx);
  letter-spacing: var(--ls-tight);
}

.dlg-message {
  font-size: var(--fs-base);
  line-height: var(--lh-relaxed);
  color: var(--tx1);
  margin: 0 0 var(--sp-5) 0;
}

.dlg-message + .dlg-message {
  margin-top: calc(-1 * var(--sp-3));
}

/* ==========================================================================
   Actions row
   ==========================================================================
*/
.dlg-actions {
  display: flex;
  gap: var(--sp-2);
  justify-content: flex-end;
  flex-wrap: wrap;
}

.dlg-btn {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
  min-width: 92px;
}

.dlg-btn:active {
  transform: scale(var(--active-scale));
}

/* Primary (affirmative action) */
.dlg-btn-primary {
  background: var(--ac);
  color: var(--ac-tx);
  border-color: var(--ac);
}
.dlg-btn-primary:hover { background: var(--ac2); border-color: var(--ac2); }

/* Secondary (cancel / dismiss) */
.dlg-btn-secondary {
  background: transparent;
  color: var(--tx1);
  border-color: var(--bdr);
}
.dlg-btn-secondary:hover {
  background: var(--hover-bg);
  color: var(--tx);
}

/* Danger (destructive affirmative) */
.dlg-btn-danger {
  background: var(--rd);
  color: #fff;
  border-color: var(--rd);
}
.dlg-btn-danger:hover { filter: brightness(1.08); }

/* ==========================================================================
   Toast (non-blocking status message)
   ==========================================================================
*/
.dlg-toast-host {
  position: fixed;
  bottom: calc(var(--sp-4) + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  pointer-events: none;
  width: max-content;
  max-width: calc(100vw - var(--sp-8));
}

/* Bump the toast host above the mobile bottom-nav when visible */
@media (max-width: 768px) {
  .dlg-toast-host {
    bottom: calc(70px + env(safe-area-inset-bottom, 0px));
  }
}

.dlg-toast {
  background: var(--bg2);
  color: var(--tx);
  padding: 10px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--bdr);
  box-shadow: var(--shadow-lg);
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  max-width: 420px;
  pointer-events: auto;
  opacity: 0;
  transform: translateY(10px);
  animation: dlg-toast-in var(--dur) var(--ease-calm) forwards;
}

.dlg-toast.dlg-closing {
  animation: dlg-toast-out var(--dur-fast) var(--ease-calm) forwards;
}

@keyframes dlg-toast-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes dlg-toast-out {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(6px); }
}

.dlg-toast-success { border-left: 3px solid var(--gn); }
.dlg-toast-error   { border-left: 3px solid var(--rd); }
.dlg-toast-warn    { border-left: 3px solid var(--yl); }
.dlg-toast-info    { border-left: 3px solid var(--ac); }

.dlg-toast-close {
  background: none;
  border: none;
  color: var(--tx2);
  font-size: 18px;
  line-height: 1;
  padding: 0 0 0 var(--sp-2);
  cursor: pointer;
  flex-shrink: 0;
}
.dlg-toast-close:hover { color: var(--tx); }

/* ==========================================================================
   Mobile responsiveness
   ==========================================================================
*/
@media (max-width: 480px) {
  .dlg-panel {
    padding: var(--sp-5) var(--sp-4) var(--sp-3);
  }
  .dlg-title { font-size: var(--fs-md); }
  .dlg-message { font-size: var(--fs-sm); }
  .dlg-actions {
    flex-direction: column-reverse;
  }
  .dlg-btn {
    width: 100%;
  }
}