/* Fluid Functionalism: rounded controls, shared highlights and the 36px size step. */
:root {
  --panel-page: #f7f7f7;
  --panel-surface: #fff;
  --panel-foreground: #171717;
  --panel-muted: #626262;
  --panel-border: rgb(0 0 0 / .1);
  --fluid-hover: rgb(0 0 0 / .04);
  --fluid-active: rgb(0 0 0 / .07);
  --fluid-focus: #6b97ff;
  --fluid-fast: 80ms ease-out;
  --fluid-moderate: 160ms cubic-bezier(.2,.75,.25,1);
  --control-radius: 8px;
  --surface-radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--panel-foreground);
  background: var(--panel-page);
  font: 400 14px/1.5 'Inter Web', Inter, system-ui, sans-serif;
}

[hidden] { display: none !important; }

.panel-width {
  width: min(100%, 1040px);
  margin-inline: auto;
  padding-inline: 24px;
}

.panel-header { border-bottom: 1px solid var(--panel-border); background: var(--panel-surface); }
.panel-header .panel-width { display: flex; align-items: center; justify-content: space-between; min-height: 56px; }
.panel-header img { display: block; }
.panel-main { padding-block: 32px 48px; }

h2, p { margin: 0; }

h2 { font-size: 15px; font-weight: 600; line-height: 1.35; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--fluid-focus); outline-offset: 2px; }

.panel-tabs, .scenario-options {
  position: relative;
  isolation: isolate;
}

.fluid-highlight {
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  width: var(--highlight-width, 0px);
  height: var(--highlight-height, 0px);
  transform: translate(var(--highlight-x, 0px), var(--highlight-y, 0px));
  border-radius: var(--control-radius);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--fluid-moderate), width var(--fluid-moderate),
    height var(--fluid-moderate), opacity var(--fluid-fast);
}

.fluid-highlight--hover { background: var(--fluid-hover); }
.fluid-highlight--selection { background: var(--fluid-active); }
.fluid-highlight[data-visible="true"] { opacity: 1; }
.fluid-highlight:not([data-positioned]) { transition: none; }

.panel-tabs {
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--panel-border);
  border-radius: var(--surface-radius);
  background: var(--panel-surface);
}

.scenario-kind-segments label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  min-height: 36px;
  padding: 7px 11px;
  border: 0;
  border-radius: var(--control-radius);
  background: transparent;
  color: var(--panel-muted);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.3;
  text-align: left;
  transition: color var(--fluid-fast);
}

.scenario-kind-segments label:has(:checked) { color: var(--panel-foreground); }

.scenario-kind-segments {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
}
.scenario-kind-segments label {
  justify-content: center;
  min-height: 44px;
  cursor: pointer;
  text-align: center;
}
.scenario-kind-segments label:has(:focus-visible) { outline: 2px solid var(--fluid-focus); outline-offset: -2px; }

.workspace-tabs {
  display: flex;
  gap: clamp(12px, 3vw, 36px);
  margin-bottom: 24px;
  border-bottom: 1px solid var(--panel-border);
}

.workspace-tabs button {
  display: inline-flex;
  align-items: center;
  gap: clamp(5px, 1vw, 10px);
  min-width: 0;
  min-height: 44px;
  padding: 0 0 12px;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  background: transparent;
  color: var(--panel-muted);
  font-size: clamp(16px, 4.1vw, 34px);
  font-weight: 650;
  line-height: 1.15;
  letter-spacing: -.045em;
  text-align: left;
  transition: color var(--fluid-moderate), border-color var(--fluid-moderate);
}

.workspace-tabs button:hover, .workspace-tabs button[aria-selected="true"] { color: var(--panel-foreground); }
.workspace-tabs button[aria-selected="true"] { border-bottom-color: currentColor; cursor: default; }

.saved-count {
  flex: none;
  min-width: 22px;
  padding: 2px 6px;
  border-radius: 999px;
  background: var(--fluid-active);
  font-size: clamp(11px, 2vw, 14px);
  line-height: 18px;
  letter-spacing: 0;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.panel-grid {
  display: grid;
  grid-template-columns: minmax(0, .96fr) minmax(424px, 1fr);
  align-items: start;
  gap: 16px;
}

.panel-controls { display: grid; min-width: 0; gap: 16px; }
.panel-preview { display: grid; gap: 12px; }
.preview-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 12px; }
.preview-heading .preview-success-toggle[aria-pressed="true"] { background: var(--fluid-active); }

.preview-stage {
  display: grid;
  justify-items: center;
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--panel-border);
  border-radius: var(--control-radius);
  background: var(--panel-page);
}

.preview-viewport {
  position: relative;
  overflow: hidden;
  width: min(100%, 390px);
  aspect-ratio: 390 / 844;
  border-radius: 26px;
  background: #eff0f3;
  box-shadow: 0 1px 4px rgb(0 0 0 / .14);
}

.preview-viewport iframe {
  position: absolute;
  inset: 0;
  width: 390px;
  height: 844px;
  border: 0;
  transform: scale(var(--preview-scale, 1));
  transform-origin: top left;
}

@media (min-width: 841px) {
  .preview-viewport {
    width: min(100%, 390px, max(250px, calc((100dvh - 304px) * 390 / 844)));
  }
}

@media (min-width: 841px) and (min-height: 720px) {
  .panel-preview { position: sticky; top: 16px; }
}

@media (max-width: 840px) {
  .panel-grid { grid-template-columns: minmax(0, 1fr); }
}

.panel-card, .scenario-item {
  min-width: 0;
  border: 1px solid var(--panel-border);
  border-radius: var(--surface-radius);
  background: var(--panel-surface);
  box-shadow: 0 1px 2px rgb(0 0 0 / .035);
}

.panel-card { padding: 20px; }
.library-gate {
  display: grid;
  place-items: center;
  min-height: 100svh;
  padding: 24px;
  background: var(--panel-surface);
}

.library-gate-content { position: relative; display: grid; gap: 12px; width: min(100%, 380px); text-align: center; }
.library-gate form { display: grid; gap: 12px; }
.library-gate input, .library-gate .panel-button { width: 100%; min-height: 64px; border-radius: 14px; font-size: 18px; }
.library-gate input { padding: 12px 18px; border: 1px solid #d7d7d7; background: var(--panel-page); color: inherit; }
.library-gate input[aria-invalid="true"] { border-color: #b92332; }
.library-gate form:not([hidden]) + .panel-muted { position: absolute; top: calc(100% + 12px); inset-inline: 0; }
.library-gate .panel-muted:empty { display: none; }
.panel-button:disabled { opacity: .55; cursor: default; }
.scenario-form { display: grid; gap: 20px; }
.scenario-group { min-width: 0; margin: 0; padding: 0; border: 0; }
.scenario-group legend {
  width: 100%;
  margin-bottom: 10px;
  padding: 0;
  font-size: 15px;
  font-weight: 650;
  line-height: 1.35;
}
.scenario-group ~ .scenario-group legend {
  padding-top: 18px;
  border-top: 1px solid var(--panel-border);
}
.scenario-fields { display: grid; gap: 12px; }

.scenario-options {
  display: grid;
  gap: 2px;
  padding: 4px;
  border: 1px solid var(--panel-border);
  border-radius: var(--surface-radius);
  background: #fafafa;
}

.scenario-option {
  display: flex;
  min-width: 0;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  padding: 8px 11px;
  border-radius: var(--control-radius);
  cursor: pointer;
}

.scenario-option:has(input:focus-visible) { outline: 2px solid var(--fluid-focus); }
.scenario-option:has(:checked) strong { font-weight: 600; }

.scenario-option input[type="radio"] {
  appearance: none;
  display: grid;
  flex: 0 0 16px;
  place-items: center;
  width: 16px;
  height: 16px;
  margin: 0;
  border: 1px solid #858585;
  border-radius: 50%;
  background: var(--panel-surface);
  outline: none;
}

.scenario-option input[type="radio"]::after {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0;
  transform: scale(.3);
  transition: transform var(--fluid-moderate), opacity var(--fluid-fast);
}

.scenario-option input:checked { border-color: var(--panel-foreground); color: var(--panel-foreground); }
.scenario-option input:checked::after { opacity: 1; transform: scale(1); }
.scenario-option strong { display: block; font-size: 14px; font-weight: 500; }
.scenario-option small { display: block; margin-top: 2px; color: var(--panel-muted); font-size: 12px; }
.scenario-checkbox, .commission-badge-option {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 4px 10px;
  color: var(--panel-muted);
  font-size: 13px;
  cursor: pointer;
}
.commission-badge-option { margin: 0 8px 2px 19px; padding-left: 17px; border-left: 1px solid var(--panel-border); }
.checkout-options { display: grid; gap: 2px; }
.checkout-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 44px;
  padding: 8px 10px;
  border-radius: var(--control-radius);
  cursor: pointer;
}
.checkout-option:hover { background: var(--fluid-hover); }
.checkout-option input {
  appearance: none;
  position: relative;
  flex: 0 0 36px;
  height: 20px;
  margin: 0;
  border: 0;
  border-radius: 12px;
  background: #d9d9d9;
  cursor: pointer;
}
.checkout-option input::after {
  content: '';
  position: absolute;
  inset: 3px auto auto 3px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  transition: transform var(--fluid-moderate);
}
.checkout-option input:checked { background: var(--panel-foreground); }
.checkout-option input:checked::after { transform: translateX(16px); }
:is(.scenario-checkbox, .commission-badge-option) input { flex: none; width: 16px; height: 16px; margin: 0; accent-color: var(--panel-foreground); }
:is(.scenario-checkbox, .commission-badge-option):has(input:checked) { color: var(--panel-foreground); }

.panel-field { display: grid; gap: 5px; min-width: 0; font-size: 13px; font-weight: 550; }

.panel-field input, .panel-field textarea, .panel-field select, .saved-url {
  width: 100%;
  min-width: 0;
  min-height: 36px;
  padding: 7px 10px;
  border: 1px solid var(--panel-border);
  border-radius: var(--control-radius);
  color: inherit;
  background: transparent;
  font-size: 13px;
  font-weight: 400;
  transition: background-color var(--fluid-fast), border-color var(--fluid-fast);
}

.scenario-brand { gap: 10px; padding-top: 18px; border-top: 1px solid var(--panel-border); }
.scenario-brand > span { font-size: 15px; font-weight: 650; line-height: 1.35; }
.scenario-brand select { min-height: 44px; font: inherit; background-color: #fafafa; }

.panel-field input:hover, .panel-field textarea:hover { background: var(--fluid-hover); }
.panel-field input:focus, .panel-field textarea:focus { border-color: #898989; background: transparent; }
.panel-field textarea { resize: vertical; }
.panel-muted, .panel-status { color: var(--panel-muted); font-size: 13px; }
.panel-status:not(:empty) { margin-top: 8px; }
.panel-status:empty { position: absolute; }

.panel-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.scenario-actions { padding-top: 16px; border-top: 1px solid var(--panel-border); gap: 8px; }

.panel-button {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: var(--control-radius);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  transition: background-color var(--fluid-fast), transform var(--fluid-moderate), font-weight var(--fluid-fast);
}

.panel-button:hover { font-weight: 550; }
.panel-button:active { transform: scale(.97); }
.panel-button--primary { background: var(--panel-foreground); color: #fff; }
.panel-button--primary:hover { background: #333; }
.panel-button--secondary { background: var(--fluid-active); color: var(--panel-foreground); }
.panel-button--secondary:hover { background: rgb(0 0 0 / .11); }
.panel-button--ghost { background: transparent; color: var(--panel-foreground); }
.panel-button--ghost:hover { background: var(--fluid-hover); }

:is(#savedScenarios, .saved-dialog) .panel-button {
  font-weight: 400;
}

.share-card { display: grid; gap: 7px; }
.share-summary { margin: 0 0 9px; font-weight: 500; overflow-wrap: anywhere; }

.input-copy {
  display: flex;
  align-items: center;
  min-height: 36px;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--panel-border);
  border-radius: var(--control-radius);
  background: var(--panel-page);
}

.input-copy input {
  flex: 1 1 0;
  min-width: 0;
  padding: 5px 6px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: inherit;
  font-size: 12px;
  text-overflow: ellipsis;
}

.copy-button { display: inline-grid; }
.input-copy .copy-button { min-height: 30px; padding: 4px 6px; border-radius: 6px; font-size: 12px; }

.copy-ready, .copy-done {
  grid-area: 1 / 1;
  transition: opacity var(--fluid-fast), transform var(--fluid-moderate);
}

.copy-done { opacity: 0; transform: translateY(4px); }
.copy-button[data-copied="true"] .copy-ready { opacity: 0; transform: translateY(-4px); }
.copy-button[data-copied="true"] .copy-done { opacity: 1; transform: translateY(0); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.saved-note { margin-bottom: 10px; }

/* shadcn Item: content, actions and optional footer in a grouped list. */
.item-group { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.scenario-item { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 14px 20px; padding: 18px 20px; }
.item-content { display: grid; min-width: 0; gap: 8px; }
.item-heading { display: flex; flex-wrap: wrap; align-items: center; gap: 5px 10px; }
.saved-name, .saved-description { overflow-wrap: anywhere; }
.saved-name { min-width: 0; font-size: 16px; }
.saved-kind {
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 16px;
}
.saved-kind[data-kind="pay"] { background: #e9f0ff; color: #234c98; }
.saved-kind[data-kind="refill"] { background: #e5f5ec; color: #206244; }
.saved-description { white-space: pre-wrap; font-size: 14px; }
.saved-parameters {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 6px;
  margin: 2px 0 0;
  padding: 0;
  list-style: none;
}
.saved-parameters li {
  max-width: 100%;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--panel-page);
  color: var(--panel-muted);
  font-size: 12px;
  line-height: 16px;
  overflow-wrap: anywhere;
}
.item-actions { justify-content: flex-end; }
.saved-url, .saved-status { grid-column: 1 / -1; }
.saved-list-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 20px 0 12px; }
.saved-section-title { margin: 0; font-size: 15px; font-weight: 650; }
.saved-groups { display: grid; gap: 12px; }
.saved-groups:empty { display: none; }
.saved-group {
  padding: 0 16px;
  border: 1px solid var(--panel-border);
  border-radius: var(--surface-radius);
  background: var(--panel-surface);
}
.saved-archive { margin-top: 22px; }
.saved-section-frame { position: relative; }
.saved-section-frame summary { padding-inline-end: 48px; }
.saved-section-more {
  position: absolute;
  z-index: 1;
  inset-block-start: 2px;
  inset-inline-end: 4px;
  min-width: 44px;
  min-height: 44px;
}
.saved-group summary {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
  list-style: none;
}
.saved-group summary::-webkit-details-marker { display: none; }
.saved-group summary::after {
  content: '';
  width: 7px;
  height: 7px;
  margin: 0 4px 4px auto;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  flex: none;
}
.saved-group[open] summary::after { margin-bottom: 0; transform: rotate(225deg); }
.saved-group[open] { padding-bottom: 14px; }
.saved-group-name { overflow-wrap: anywhere; }
.saved-group .saved-count { flex: none; }
.archive-empty { margin: 2px 0 4px; }
.saved-preview, .saved-copy { gap: 6px; }
.saved-preview svg { flex: none; }
.saved-copy { grid-template-columns: 18px auto; grid-template-rows: auto; }
.saved-copy > span { grid-area: 1 / 2; }
.saved-more { min-width: 38px; padding-inline: 8px; font-size: 21px; line-height: 1; }
#savedList .scenario-item { position: relative; }
@media (min-width: 721px) and (any-pointer: fine) {
  #savedList .scenario-item { cursor: grab; user-select: none; }
}
#savedList .scenario-item.is-dragging { opacity: .42; cursor: grabbing; }
#savedList .scenario-item[data-drop-edge]::before {
  content: '';
  position: absolute;
  inset-inline: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--fluid-focus);
  pointer-events: none;
}
#savedList .scenario-item[data-drop-edge="top"]::before { top: -6px; }
#savedList .scenario-item[data-drop-edge="bottom"]::before { bottom: -6px; }
.saved-group:is([data-drop-archive], [data-drop-section]) { outline: 2px solid var(--fluid-focus); outline-offset: 3px; }
.saved-drag-preview {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: 31;
  max-width: min(270px, calc(100vw - 16px));
  padding: 8px 12px;
  overflow: hidden;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: var(--panel-surface);
  box-shadow: 0 3px 14px rgb(0 0 0 / .12);
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
  pointer-events: none;
}
.saved-menu {
  position: fixed;
  z-index: 30;
  display: grid;
  width: min(232px, calc(100vw - 16px));
  max-height: calc(100dvh - 16px);
  overflow: auto;
  padding: 5px;
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  background: var(--panel-surface);
  box-shadow: 0 8px 28px rgb(0 0 0 / .13);
}
.saved-menu button {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 7px 10px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 13px;
  text-align: left;
  cursor: pointer;
}
.saved-menu button svg {
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.saved-menu button:is(:hover, :focus-visible) { background: var(--panel-page); }
.saved-dialog {
  width: min(460px, calc(100% - 32px));
  max-height: calc(100dvh - 32px);
  margin: auto;
  overflow: auto;
  overscroll-behavior: contain;
  color: inherit;
  box-shadow: 0 14px 48px rgb(0 0 0 / .15);
}
.saved-dialog::backdrop { background: rgb(29 32 35 / .38); }
.saved-dialog .panel-actions { justify-content: flex-end; }
.saved-dialog h2 { font-size: 18px; }
.saved-dialog textarea { resize: vertical; }
.saved-versions { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.saved-versions:empty { display: none; }
.saved-versions li { display: grid; gap: 4px; padding: 10px 12px; border-radius: 8px; background: var(--panel-page); overflow-wrap: anywhere; }
.saved-versions time { color: var(--panel-muted); font-size: 12px; }
.saved-versions p { font-size: 14px; white-space: pre-wrap; }

@media (max-width: 720px) {
  .panel-width { padding-inline: 16px; }
  .panel-main { padding-top: 24px; }
  .panel-grid, .scenario-item { grid-template-columns: minmax(0, 1fr); }
  .panel-card, .scenario-item { padding: 16px; }
  .item-actions { justify-content: flex-start; }
  .saved-group { padding-inline: 10px; }
}

@media (max-width: 420px) {
  .workspace-tabs { margin-bottom: 16px; }
  .preview-stage { padding: 0; border: 0; }
}

@media (pointer: coarse) {
  .panel-button, .panel-field input { min-height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  .fluid-highlight, .workspace-tabs button, .scenario-kind-segments label, .scenario-option input::after,
  .panel-button, .panel-field input, .panel-field textarea, .checkout-option input::after, .copy-ready, .copy-done { transition: none; }
  .panel-button:active { transform: none; }
}