/* UI Alerts & Toasts — 15 named pattern styles */

/* ---------- Shared alert / icon primitives ---------- */

.at-icon {
  display: inline-flex;
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.1rem;
}

.at-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.at-dismiss {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  margin: -0.25rem -0.35rem -0.25rem 0;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: inherit;
  opacity: 0.7;
  transition: background var(--motion), opacity var(--motion);
}

.at-dismiss:hover {
  opacity: 1;
  background: rgb(26 35 50 / 0.08);
}

.at-dismiss svg {
  width: 0.875rem;
  height: 0.875rem;
  stroke: currentColor;
  stroke-width: 2.25;
  fill: none;
  stroke-linecap: round;
}

.at-alert__body,
.at-banner__body {
  flex: 1;
  min-width: 0;
}

.at-alert__title,
.at-banner__title {
  margin: 0 0 0.15rem;
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.3;
}

.at-alert__text,
.at-banner__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.45;
}

.at-alert__link,
.at-banner__link {
  display: inline;
  margin-left: 0.25rem;
  color: inherit;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.at-alert__link:hover,
.at-banner__link:hover {
  text-decoration-thickness: 2px;
}

/* ---------- 1–4 Inline alerts ---------- */

.at-alert,
.at-alert-info,
.at-alert-success,
.at-alert-warn,
.at-alert-danger {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid transparent;
  border-radius: 10px;
  border-left-width: 4px;
  font-size: 0.875rem;
}

.at-alert-info {
  border-color: #b2ddff;
  border-left-color: var(--info);
  background: var(--info-soft);
  color: #1849a9;
}

.at-alert-success {
  border-color: #abefc6;
  border-left-color: var(--success);
  background: var(--success-soft);
  color: #085d3a;
}

.at-alert-warn {
  border-color: #fedf89;
  border-left-color: var(--warn);
  background: var(--warn-soft);
  color: #93370d;
}

.at-alert-danger {
  border-color: #fecdca;
  border-left-color: var(--danger);
  background: var(--danger-soft);
  color: #912018;
}

/* ---------- 5 Alert stack ---------- */

.at-alert-stack {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-width: 36rem;
}

/* ---------- 6–8 Banners ---------- */

.at-banner-page,
.at-banner-promo,
.at-banner-system {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
}

.at-banner-page {
  border-bottom: 3px solid var(--accent);
  background: var(--accent-soft);
  color: var(--accent-deep);
}

.at-banner-page .at-banner__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-inline-start: auto;
}

.at-banner-promo {
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, var(--accent-deep) 0%, var(--accent) 100%);
  color: #fff;
}

.at-banner-promo .at-banner__text {
  font-weight: 600;
}

.at-banner-promo .at-banner__cta {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  border: none;
  border-radius: 8px;
  background: #fff;
  color: var(--accent-deep);
  font-size: 0.8125rem;
  font-weight: 700;
}

.at-banner-promo .at-banner__cta:hover {
  background: var(--accent-soft);
}

.at-banner-promo .at-dismiss {
  color: #fff;
}

.at-banner-promo .at-dismiss:hover {
  background: rgb(255 255 255 / 0.15);
}

.at-banner-system {
  background: #1a2332;
  color: #e8edf3;
}

.at-banner-system .at-banner__pill {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--warn);
  color: #fff;
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.at-banner-system .at-banner__link {
  color: #9ad4cc;
  margin-left: 0;
}

.at-banner-system .at-banner__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-inline-start: auto;
}

@media (max-width: 40rem) {
  .at-banner-page .at-banner__actions,
  .at-banner-system .at-banner__actions {
    width: 100%;
    margin-inline-start: 0;
    justify-content: flex-start;
  }

  .at-banner-promo {
    flex-direction: column;
  }
}

/* ---------- 9–11 Toast stack ---------- */

.at-toast-stack {
  position: absolute;
  z-index: 5;
  right: 0.75rem;
  bottom: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: min(100% - 1.5rem, 20rem);
  pointer-events: none;
}

.at-toast-stack > * {
  pointer-events: auto;
}

.at-toast-triggers {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  max-width: 22rem;
}

.at-toast {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-raised);
  box-shadow: var(--at-shadow);
  color: var(--ink);
  font-size: 0.8125rem;
  line-height: 1.4;
  animation: at-toast-in 220ms ease forwards;
  transform-origin: bottom right;
}

.at-toast.is-out {
  animation: at-toast-out 180ms ease forwards;
}

.at-toast--info {
  border-left: 3px solid var(--info);
}

.at-toast--success {
  border-left: 3px solid var(--success);
}

.at-toast--warn {
  border-left: 3px solid var(--warn);
}

.at-toast--danger {
  border-left: 3px solid var(--danger);
}

.at-toast__icon {
  flex-shrink: 0;
  width: 1.15rem;
  height: 1.15rem;
  margin-top: 0.05rem;
  color: var(--ink-muted);
}

.at-toast--info .at-toast__icon {
  color: var(--info);
}

.at-toast--success .at-toast__icon {
  color: var(--success);
}

.at-toast--warn .at-toast__icon {
  color: var(--warn);
}

.at-toast--danger .at-toast__icon {
  color: var(--danger);
}

.at-toast__icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.at-toast__content {
  flex: 1;
  min-width: 0;
}

.at-toast__title {
  margin: 0 0 0.15rem;
  font-size: 0.8125rem;
  font-weight: 700;
}

.at-toast__text {
  margin: 0;
  color: var(--ink-muted);
}

.at-toast__actions {
  display: flex;
  gap: 0.35rem;
  margin-top: 0.45rem;
}

.at-toast__undo {
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--accent-deep);
  font-size: 0.75rem;
  font-weight: 700;
}

.at-toast__undo:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.at-toast .at-dismiss {
  margin: -0.15rem -0.25rem -0.15rem 0;
}

/* Progress toast */
.at-toast--progress {
  position: relative;
  overflow: hidden;
  padding-bottom: 0.95rem;
}

.at-toast__bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: rgb(26 35 50 / 0.08);
}

.at-toast__bar-fill {
  display: block;
  height: 100%;
  width: 100%;
  transform-origin: left center;
  background: var(--accent);
  animation: at-toast-progress 4s linear forwards;
}

.at-toast--progress.is-paused .at-toast__bar-fill {
  animation-play-state: paused;
}

.at-toast-rich,
.at-toast-progress {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 22rem;
}

@keyframes at-toast-in {
  from {
    opacity: 0;
    transform: translateY(0.5rem) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes at-toast-out {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(0.35rem) scale(0.98);
  }
}

@keyframes at-toast-progress {
  from {
    transform: scaleX(1);
  }
  to {
    transform: scaleX(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .at-toast,
  .at-toast.is-out {
    animation: none;
  }

  .at-toast__bar-fill {
    animation: none;
    transform: scaleX(0.35);
  }
}

/* ---------- 12–13 Empty states ---------- */

.at-empty,
.at-empty-search {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
  max-width: 24rem;
  margin-inline: auto;
  padding: 1.75rem 1.25rem;
  text-align: center;
}

.at-empty__illus {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 1rem;
  background: var(--accent-soft);
  color: var(--accent);
}

.at-empty__illus svg {
  width: 2.25rem;
  height: 2.25rem;
  stroke: currentColor;
  stroke-width: 1.75;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.at-empty__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.at-empty__text {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.875rem;
}

.at-empty__query {
  color: var(--ink);
  font-weight: 700;
}

.at-empty__suggestions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem;
  margin: 0.25rem 0 0;
  padding: 0;
  list-style: none;
}

.at-empty__suggestions li {
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  color: var(--ink-muted);
  font-size: 0.75rem;
  font-weight: 600;
}

.at-empty__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.35rem;
}

/* ---------- 14 Error panel ---------- */

.at-error-panel {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.65rem;
  max-width: 28rem;
  padding: 1.25rem 1.35rem;
  border: 1px solid #fecdca;
  border-radius: var(--at-radius);
  background: var(--danger-soft);
}

.at-error-panel__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  background: #fff;
  color: var(--danger);
  border: 1px solid #fecdca;
}

.at-error-panel__icon svg {
  width: 1.15rem;
  height: 1.15rem;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.at-error-panel__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: #912018;
}

.at-error-panel__text {
  margin: 0;
  color: #912018;
  font-size: 0.875rem;
  opacity: 0.9;
}

.at-error-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.at-error-panel.is-retrying .at-error-panel__title::after {
  content: " — Retrying…";
  font-weight: 600;
  font-size: 0.875rem;
}

/* ---------- 15 Form-adjacent error ---------- */

.at-error-inline-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  max-width: 22rem;
}

.at-error-inline-form__callout {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid #fecdca;
  border-left: 4px solid var(--danger);
  border-radius: 10px;
  background: var(--danger-soft);
  color: #912018;
}

.at-error-inline-form__callout .at-icon {
  color: var(--danger);
}

.at-error-inline-form__title {
  margin: 0 0 0.35rem;
  font-size: 0.875rem;
  font-weight: 700;
}

.at-error-inline-form__list {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.8125rem;
  line-height: 1.45;
}

.at-error-inline-form__fields {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.at-error-inline-form label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ink-muted);
}

.at-error-inline-form input {
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

.at-error-inline-form input.is-invalid {
  border-color: var(--danger);
  background: #fffaf9;
}

.at-error-inline-form input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}