/* =========================================================================
 * Hashbox V2 — Phase 4 Interactive Components
 * Depends on: tokens.css
 *
 * Components:
 *   19. Accordion / FAQ (.hb-accordion + .hb-accordion__item)
 *   20. Tabs (.hb-tabs + .hb-tabs__list + .hb-tabs__panel)
 *   21. Tooltip (.hb-tooltip)
 *   22. Modal / Dialog (.hb-dialog)
 *   23. Toast (.hb-toast + .hb-toast-stack)
 * ========================================================================= */

/* -------------------------------------------------------------------------
 * 19. ACCORDION / FAQ
 * Uses native <details>/<summary> for a11y + no JS needed
 * ----------------------------------------------------------------------- */

.hb-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--hb-space-3);
}

.hb-accordion__item {
  background: var(--hb-surface-1);
  border: 1px solid var(--hb-border);
  border-radius: var(--hb-radius-md);
  overflow: hidden;
  transition: border-color var(--hb-duration-fast) var(--hb-ease-out);
}

.hb-accordion__item[open] {
  border-color: var(--hb-border-strong);
  background: var(--hb-surface-2);
}

.hb-accordion__item:hover {
  border-color: var(--hb-border-strong);
}

.hb-accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--hb-space-4);
  padding: var(--hb-space-4) var(--hb-space-5);
  font-family: var(--hb-font-display);
  font-size: var(--hb-text-base);
  font-weight: var(--hb-weight-medium);
  color: var(--hb-text-strong);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.hb-accordion__trigger::-webkit-details-marker { display: none; }
.hb-accordion__trigger::marker { content: ''; }

.hb-accordion__trigger::after {
  content: '';
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cline x1='12' y1='5' x2='12' y2='19' stroke='%23A1A1AA' stroke-width='2' stroke-linecap='round'/%3E%3Cline x1='5' y1='12' x2='19' y2='12' stroke='%23A1A1AA' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  transition: transform var(--hb-duration-normal) var(--hb-ease-out-expo);
}

.hb-accordion__item[open] .hb-accordion__trigger::after {
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cline x1='5' y1='12' x2='19' y2='12' stroke='%233B82F6' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  transform: rotate(180deg);
}

.hb-accordion__content {
  padding: 0 var(--hb-space-5) var(--hb-space-5);
  color: var(--hb-text);
  font-size: var(--hb-text-base);
  line-height: var(--hb-leading-relaxed);
}

.hb-accordion__content p {
  margin: 0;
}

.hb-accordion__content p + p {
  margin-top: var(--hb-space-3);
}

/* -------------------------------------------------------------------------
 * 20. TABS
 * ----------------------------------------------------------------------- */

.hb-tabs {
  display: flex;
  flex-direction: column;
  gap: var(--hb-space-6);
}

.hb-tabs__list {
  display: inline-flex;
  gap: var(--hb-space-1);
  padding: var(--hb-space-1);
  background: var(--hb-surface-1);
  border: 1px solid var(--hb-border);
  border-radius: var(--hb-radius-md);
  width: fit-content;
  flex-wrap: wrap;
}

.hb-tabs__trigger {
  font-family: var(--hb-font-body);
  font-size: var(--hb-text-sm);
  font-weight: var(--hb-weight-medium);
  color: var(--hb-text-muted);
  background: transparent;
  border: none;
  padding: var(--hb-space-2) var(--hb-space-4);
  border-radius: var(--hb-radius-sm);
  cursor: pointer;
  transition: color var(--hb-duration-fast) var(--hb-ease-out),
              background var(--hb-duration-fast) var(--hb-ease-out);
}

.hb-tabs__trigger:hover {
  color: var(--hb-text-strong);
}

.hb-tabs__trigger[aria-selected="true"] {
  color: var(--hb-text-strong);
  background: var(--hb-surface-3);
  box-shadow: var(--hb-shadow-xs);
}

.hb-tabs__panel {
  display: none;
}

.hb-tabs__panel[data-active="true"] {
  display: block;
  animation: hb-fade-in var(--hb-duration-normal) var(--hb-ease-out);
}

@keyframes hb-fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* -------------------------------------------------------------------------
 * 21. TOOLTIP
 * Uses [data-tooltip] attribute on any element. No JS.
 * ----------------------------------------------------------------------- */

[data-tooltip] {
  position: relative;
}

[data-tooltip]::before,
[data-tooltip]::after {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--hb-duration-fast) var(--hb-ease-out),
              transform var(--hb-duration-fast) var(--hb-ease-out);
  z-index: var(--hb-z-tooltip);
}

[data-tooltip]::before {
  content: attr(data-tooltip);
  white-space: nowrap;
  background: var(--hb-surface-3);
  color: var(--hb-text-strong);
  font-family: var(--hb-font-body);
  font-size: var(--hb-text-xs);
  font-weight: var(--hb-weight-medium);
  line-height: 1.4;
  padding: var(--hb-space-2) var(--hb-space-3);
  border-radius: var(--hb-radius-sm);
  border: 1px solid var(--hb-border-strong);
  box-shadow: var(--hb-shadow-md);
  transform: translateX(-50%) translateY(4px);
}

[data-tooltip]::after {
  content: '';
  width: 8px; height: 8px;
  background: var(--hb-surface-3);
  border-right: 1px solid var(--hb-border-strong);
  border-bottom: 1px solid var(--hb-border-strong);
  transform: translateX(-50%) translateY(4px) rotate(45deg);
  bottom: calc(100% + 4px);
}

[data-tooltip]:hover::before,
[data-tooltip]:hover::after,
[data-tooltip]:focus-visible::before,
[data-tooltip]:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
[data-tooltip]:hover::after,
[data-tooltip]:focus-visible::after {
  transform: translateX(-50%) translateY(0) rotate(45deg);
}

/* Tooltip placement variants */
[data-tooltip-placement="bottom"]::before,
[data-tooltip-placement="bottom"]::after {
  bottom: auto;
  top: calc(100% + 8px);
}
[data-tooltip-placement="bottom"]::after {
  top: calc(100% + 4px);
  border: none;
  border-left: 1px solid var(--hb-border-strong);
  border-top: 1px solid var(--hb-border-strong);
}

/* -------------------------------------------------------------------------
 * 22. MODAL / DIALOG
 * Uses native <dialog> element for a11y. Polyfill not required for modern.
 * ----------------------------------------------------------------------- */

.hb-dialog {
  width: min(32rem, 90vw);
  max-height: 85vh;
  margin: auto;
  padding: 0;
  background: var(--hb-surface-1);
  color: var(--hb-text);
  border: 1px solid var(--hb-border);
  border-radius: var(--hb-radius-xl);
  box-shadow: var(--hb-shadow-xl);
  overflow: hidden;
}

.hb-dialog::backdrop {
  background: oklch(0% 0 0 / 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.hb-dialog[open] {
  animation: hb-dialog-in var(--hb-duration-normal) var(--hb-ease-out-expo);
}

@keyframes hb-dialog-in {
  from { opacity: 0; transform: translateY(16px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.hb-dialog__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--hb-space-5) var(--hb-space-6);
  border-bottom: 1px solid var(--hb-border);
}

.hb-dialog__title {
  font-family: var(--hb-font-display);
  font-size: var(--hb-text-lg);
  font-weight: var(--hb-weight-semibold);
  color: var(--hb-text-strong);
  margin: 0;
}

.hb-dialog__close {
  width: 2rem; height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--hb-border);
  border-radius: var(--hb-radius-sm);
  cursor: pointer;
  color: var(--hb-text);
}
.hb-dialog__close:hover { background: var(--hb-surface-2); color: var(--hb-text-strong); }

.hb-dialog__body {
  padding: var(--hb-space-6);
  overflow-y: auto;
}

.hb-dialog__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--hb-space-3);
  padding: var(--hb-space-4) var(--hb-space-6);
  border-top: 1px solid var(--hb-border);
  background: var(--hb-surface-2);
}

/* -------------------------------------------------------------------------
 * 23. TOAST
 * Use .hb-toast-stack as the container at fixed corner.
 * ----------------------------------------------------------------------- */

.hb-toast-stack {
  position: fixed;
  bottom: var(--hb-space-5);
  right: var(--hb-space-5);
  display: flex;
  flex-direction: column;
  gap: var(--hb-space-3);
  z-index: var(--hb-z-toast);
  pointer-events: none;
}

.hb-toast {
  pointer-events: auto;
  display: flex;
  align-items: flex-start;
  gap: var(--hb-space-3);
  min-width: 18rem;
  max-width: 26rem;
  padding: var(--hb-space-3) var(--hb-space-4);
  background: var(--hb-surface-2);
  color: var(--hb-text-strong);
  border: 1px solid var(--hb-border-strong);
  border-radius: var(--hb-radius-md);
  box-shadow: var(--hb-shadow-lg);
  animation: hb-toast-in var(--hb-duration-normal) var(--hb-ease-out-expo);
}

@keyframes hb-toast-in {
  from { opacity: 0; transform: translateX(16px); }
  to   { opacity: 1; transform: translateX(0); }
}

.hb-toast__icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--hb-accent-blue);
}

.hb-toast--success .hb-toast__icon { color: var(--hb-accent-emerald); }
.hb-toast--warning .hb-toast__icon { color: var(--hb-accent-amber); }
.hb-toast--danger  .hb-toast__icon { color: var(--hb-accent-rose); }

.hb-toast__body {
  flex: 1;
  font-size: var(--hb-text-sm);
  line-height: var(--hb-leading-snug);
}

.hb-toast__title {
  font-weight: var(--hb-weight-semibold);
  color: var(--hb-text-strong);
  margin: 0 0 2px;
  display: block;
}

.hb-toast__desc {
  color: var(--hb-text-muted);
  font-size: var(--hb-text-xs);
  margin: 0;
}

.hb-toast__close {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--hb-text-faint);
  padding: 0;
}
.hb-toast__close:hover { color: var(--hb-text-strong); }