:root {
  --bg: #dff2ff;
  --ink: #10243f;
  --muted: #5c728d;
  --surface: rgba(255, 255, 255, 0.92);
  --surface-solid: #ffffff;
  --surface-soft: #eef8ff;
  --line: rgba(102, 165, 220, 0.36);
  --line-strong: #6ea7d8;
  --teal: #1677d2;
  --teal-soft: #d9efff;
  --amber: #b45309;
  --amber-soft: #fef3c7;
  --blue: #2f8cff;
  --blue-soft: #d9ebff;
  --green: #15803d;
  --green-soft: #dcfce7;
  --rose: #be123c;
  --rose-soft: #ffe4e6;
  --gold: #f6c85f;
  --cyan: #38c8ff;
  --panel-top: #f8fcff;
  --shadow: 0 22px 54px rgba(38, 99, 150, 0.18);
  --glow: 0 0 0 1px rgba(255, 255, 255, 0.74), 0 18px 48px rgba(56, 150, 232, 0.22);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  overflow-y: auto;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  overflow-y: auto;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(218, 241, 255, 0.32) 38%, rgba(175, 220, 252, 0.48)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.14) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.12) 0 1px, transparent 1px 46px),
    linear-gradient(135deg, rgba(58, 173, 255, 0.22), transparent 30%),
    linear-gradient(315deg, rgba(124, 211, 255, 0.20), transparent 26%),
    var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(120deg, transparent 0 18%, rgba(255, 255, 255, 0.32) 18% 18.4%, transparent 18.4% 44%, rgba(255, 255, 255, 0.18) 44% 44.25%, transparent 44.25%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), transparent 58%);
  mask-image: linear-gradient(180deg, #000, transparent 78%);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  min-height: 42px;
}

.mode-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px;
  background:
    linear-gradient(180deg, rgba(213, 240, 255, 0.16), rgba(188, 225, 251, 0.52)),
    url("../assets/generated/mode-select-bg.png") center / cover no-repeat;
}

.mode-screen[hidden],
.app-shell[hidden] {
  display: none;
}

.mode-panel {
  width: min(860px, 100%);
  position: relative;
  overflow: hidden;
  padding: 38px;
  color: white;
  background:
    linear-gradient(180deg, rgba(31, 123, 213, 0.78), rgba(17, 70, 138, 0.82)),
    linear-gradient(135deg, rgba(255, 255, 255, 0.28), transparent);
  border: 1px solid rgba(195, 230, 255, 0.5);
  border-radius: 8px;
  box-shadow: var(--glow);
  text-align: center;
  backdrop-filter: blur(8px);
}

.mode-panel::before,
.topbar::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18), transparent),
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 16px);
  opacity: 0.7;
}

.mode-panel h1 {
  margin-bottom: 10px;
}

.mode-lead {
  margin-bottom: 26px;
  color: #e0f2fe;
}

.mode-choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.mode-choice {
  position: relative;
  overflow: hidden;
  min-height: 180px;
  padding: 24px;
  color: var(--ink);
  background:
    linear-gradient(180deg, #ffffff, #eaf7ff 72%, #d8efff),
    var(--surface-solid);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 8px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95), 0 18px 36px rgba(10, 66, 126, 0.24);
  cursor: pointer;
  text-align: left;
}

.mode-choice::after {
  content: "";
  position: absolute;
  inset: auto 18px 16px 18px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
  opacity: 0.74;
}

.mode-choice strong,
.mode-choice span {
  display: block;
}

.mode-choice strong {
  margin-bottom: 12px;
  color: #115aa8;
  font-size: 1.45rem;
}

.mode-choice span {
  color: var(--muted);
  line-height: 1.7;
}

.mode-choice.challenge strong {
  color: #7c4a03;
}

.app-shell {
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 32px;
  overflow: visible;
}

.topbar {
  position: relative;
  overflow: hidden;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  padding: 22px 24px;
  color: white;
  background:
    linear-gradient(90deg, rgba(14, 68, 145, 0.84), rgba(49, 143, 226, 0.54), rgba(14, 68, 145, 0.84)),
    url("../assets/generated/title-banner-bg.png") center / cover no-repeat;
  border: 1px solid rgba(196, 232, 255, 0.46);
  border-radius: 8px;
  box-shadow: var(--glow);
}

.topbar > * {
  position: relative;
  z-index: 1;
}

.topbar-back {
  flex: 0 0 auto;
  color: white;
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.08);
}

.eyebrow {
  margin: 0 0 6px;
  color: #c9f1ff;
  font-size: 0.78rem;
  letter-spacing: 0;
  text-transform: uppercase;
  font-weight: 800;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 2.1rem;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: 1rem;
}

.topbar-intro,
.legend,
.metrics,
.button-row,
.split-fields,
.section-title-row {
  display: flex;
  align-items: center;
}

.topbar-intro {
  flex: 0 1 520px;
  display: grid;
  gap: 6px;
  justify-items: end;
  text-align: right;
}

.topbar-intro p,
.legend-item,
.metrics span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  font-size: 0.88rem;
}

.legend-item,
.metrics span {
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

.topbar-intro p {
  justify-content: flex-end;
  margin: 0;
  padding: 0;
  color: #e0f2fe;
  line-height: 1.45;
}

.workspace {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 18px;
  margin-top: 18px;
}

.challenge-layout .workspace {
  grid-template-columns: minmax(0, 900px);
  justify-content: center;
}

.challenge-layout .control-pane {
  display: none;
}

.control-pane,
.story-pane {
  min-width: 0;
}

.pane-section,
.story-board,
.history,
.ending {
  background:
    linear-gradient(180deg, var(--panel-top), var(--surface) 42%, rgba(239, 248, 255, 0.94)),
    var(--surface-solid);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.pane-section {
  position: relative;
  padding: 18px;
  margin-bottom: 14px;
}

.pane-section::before,
.story-board::before,
.history::before,
.ending::before,
.progress-panel::before,
.challenge-status::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  border-radius: 8px 8px 0 0;
  background: linear-gradient(90deg, var(--cyan), rgba(255, 255, 255, 0.2), var(--gold));
}

.pane-section[hidden] {
  display: none;
}

.challenge-panel {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
  padding: 12px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.challenge-status {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, max-content)) minmax(220px, 1fr);
  gap: 10px;
  align-items: center;
  padding: 12px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(231, 246, 255, 0.92));
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--glow);
}

.challenge-status[hidden] {
  display: none;
}

.challenge-card {
  display: grid;
  grid-template-columns: auto auto auto auto;
  gap: 6px;
  align-items: center;
  min-height: 44px;
  padding: 8px 12px;
  background: linear-gradient(180deg, #ffffff, #e7f6ff);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.challenge-icon {
  display: block;
  width: 34px;
  height: 34px;
  object-fit: contain;
  filter: drop-shadow(0 3px 5px rgba(35, 126, 205, 0.18));
}

.challenge-card span,
.challenge-card small {
  color: var(--muted);
  font-size: 0.88rem;
}

.challenge-card strong {
  color: var(--ink);
  font-size: 1.35rem;
}

.challenge-hint {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.challenge-panel[hidden] {
  display: none;
}

.challenge-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.challenge-stats span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 4px 10px;
  color: var(--teal);
  background: var(--teal-soft);
  border: 1px solid rgba(15, 118, 110, 0.22);
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
}

.story-pane {
  display: grid;
  align-content: start;
  gap: 2px;
}

.story-toolbar {
  display: none;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 12px;
  background: rgba(248, 252, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 30px rgba(38, 99, 150, 0.12);
  backdrop-filter: blur(10px);
}

.legend,
.metrics,
.button-row {
  flex-wrap: wrap;
  gap: 8px;
}

.legend-item {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #ffffff, #eff8ff);
}

.role-dot {
  color: #1d4ed8;
  background: var(--blue-soft);
}

.quote-dot {
  color: var(--amber);
  background: var(--amber-soft);
}

.item-dot {
  color: var(--green);
  background: var(--green-soft);
}

.metrics {
  justify-content: flex-end;
}

.metrics span {
  color: var(--muted);
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--line);
}

.metrics strong {
  color: var(--teal);
}

.outcome-badge {
  font-weight: 700;
}

.outcome-badge.bad,
.outcome-notice.bad,
.ending.bad {
  color: var(--rose);
  background: var(--rose-soft);
  border-color: rgba(190, 18, 60, 0.28);
}

.outcome-badge.neutral,
.outcome-notice.neutral,
.ending.neutral {
  color: var(--amber);
  background: var(--amber-soft);
  border-color: rgba(180, 83, 9, 0.28);
}

.outcome-badge.good,
.outcome-notice.good,
.ending.good {
  color: var(--green);
  background: var(--green-soft);
  border-color: rgba(21, 128, 61, 0.28);
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.92rem;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: linear-gradient(180deg, #ffffff, #f0f9ff);
  outline: none;
  box-shadow: inset 0 1px 2px rgba(24, 91, 145, 0.06);
}

input,
select {
  min-height: 42px;
  padding: 10px 12px;
}

.native-icon-select {
  display: none;
}

.icon-picker {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.icon-choice {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 9px;
  align-items: center;
  min-height: 58px;
  padding: 8px 10px;
  color: var(--ink);
  background: linear-gradient(180deg, #ffffff, #ecf8ff);
  border: 1px solid rgba(111, 177, 228, 0.42);
  border-radius: 8px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9), 0 8px 18px rgba(35, 103, 160, 0.09);
  cursor: pointer;
  text-align: left;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

.icon-choice:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: rgba(47, 140, 255, 0.62);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.96), 0 12px 24px rgba(35, 103, 160, 0.16);
}

.icon-choice.active {
  border-color: rgba(47, 140, 255, 0.8);
  background: linear-gradient(180deg, #ffffff, #dff2ff);
  box-shadow: 0 0 0 3px rgba(47, 140, 255, 0.14), 0 12px 24px rgba(35, 103, 160, 0.15);
}

.icon-choice:disabled {
  opacity: 0.52;
  cursor: not-allowed;
}

.icon-choice img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  object-fit: cover;
  background: #e8f7ff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.92);
}

.icon-choice span {
  min-width: 0;
  color: #16446f;
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.25;
}

textarea {
  min-height: 270px;
  padding: 12px;
  line-height: 1.65;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(47, 140, 255, 0.16), inset 0 1px 2px rgba(24, 91, 145, 0.06);
}

.split-fields {
  gap: 10px;
  align-items: end;
}

.split-fields .field {
  flex: 1;
  margin-bottom: 0;
}

.note,
.warning,
.ending-note {
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.92rem;
}

.note {
  margin: 12px 0 0;
}

.button {
  position: relative;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 10px 14px;
  min-height: 58px;
  color: var(--ink);
  background: linear-gradient(180deg, #ffffff, #e9f6ff);
  cursor: pointer;
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.92), 0 8px 16px rgba(35, 103, 160, 0.14);
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease, filter 0.15s ease;
}

.button::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.36), transparent 48%);
}

.button:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.96), 0 14px 26px rgba(35, 103, 160, 0.22);
  filter: saturate(1.06);
}

.button:active:not(:disabled) {
  transform: translateY(1px);
  box-shadow: inset 0 2px 5px rgba(11, 58, 104, 0.22), 0 5px 12px rgba(35, 103, 160, 0.14);
}

.button:disabled {
  opacity: 0.48;
  cursor: not-allowed;
}

.primary {
  color: white;
  background: linear-gradient(180deg, #5fd2ff, #2188f2 58%, #1667c6);
  border-color: rgba(184, 233, 255, 0.82);
  text-shadow: 0 1px 1px rgba(0, 43, 92, 0.4);
}

.game-cta {
  min-width: 210px;
  width: 216px;
  min-height: 58px;
  padding: 13px 42px 15px;
  color: #fff6d0;
  background: url("../assets/generated/ai-generate-button-bg.png") center / 100% 100% no-repeat;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  filter: drop-shadow(0 10px 14px rgba(12, 78, 156, 0.25));
  font-size: 1.02rem;
  letter-spacing: 0;
  text-shadow:
    0 1px 0 rgba(86, 50, 5, 0.7),
    0 0 8px rgba(255, 255, 255, 0.28);
}

.game-cta:hover:not(:disabled) {
  transform: translateY(-3px);
  box-shadow: none;
  filter: drop-shadow(0 14px 16px rgba(12, 78, 156, 0.28)) saturate(1.06);
}

.game-cta:active:not(:disabled) {
  transform: translateY(1px);
  box-shadow: none;
  filter: drop-shadow(0 6px 10px rgba(12, 78, 156, 0.2)) saturate(0.98);
}

.game-cta::before,
.game-cta::after {
  display: none;
}

.secondary {
  color: white;
  background: linear-gradient(180deg, #81b9ff, #427dea 58%, #2759bf);
  border-color: rgba(203, 225, 255, 0.7);
  text-shadow: 0 1px 1px rgba(0, 43, 92, 0.36);
}

.ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.54);
  border-color: var(--line);
}

.story-board {
  position: relative;
  overflow: visible;
  min-height: 420px;
  padding: 22px;
}

.story-board::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(22, 119, 210, 0.06), transparent 20%, transparent 80%, rgba(246, 200, 95, 0.06));
}

.story-board > * {
  position: relative;
  z-index: 1;
}

.story-heading {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
  color: var(--muted);
}

.story-heading > div {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
  min-width: 0;
}

.story-heading strong {
  color: var(--ink);
  font-size: 1.25rem;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.72);
}

.story-count {
  flex: 0 0 auto;
  min-height: 30px;
  padding: 4px 10px;
  color: var(--teal);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 800;
}

.story-text {
  min-height: 300px;
  font-size: 1.18rem;
  line-height: 36px;
  padding-top: 0;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(22, 119, 210, 0.06) 0 1px,
      transparent 1px 36px
    );
}

.story-paragraph {
  margin: 0 0 36px;
  text-indent: 2em;
}

.story-paragraph:last-child {
  margin-bottom: 0;
}

.key-paragraph {
  margin-block: 36px;
  text-indent: 0;
}

.ending-label-paragraph {
  text-indent: 0;
}

.empty-story {
  margin: 0;
  color: var(--muted);
}

.story-ending {
  display: inline;
  color: inherit;
  font-weight: 700;
}

.story-ending.bad {
  color: var(--rose);
}

.story-ending.neutral {
  color: var(--amber);
}

.story-ending.good {
  color: var(--green);
}

.story-ending-label {
  display: inline-flex;
  align-items: center;
  margin: 0 7px 0 0;
  padding: 2px 7px;
  color: white;
  border-radius: 999px;
  font-size: 0.82rem;
  vertical-align: middle;
  box-shadow: 0 4px 10px rgba(20, 48, 80, 0.14);
}

.story-ending.bad .story-ending-label {
  background: var(--rose);
}

.story-ending.neutral .story-ending-label {
  background: var(--amber);
}

.story-ending.good .story-ending-label {
  background: var(--green);
}

.outcome-notice {
  display: grid;
  gap: 4px;
  margin-top: 20px;
  padding: 12px 14px;
  border: 1px solid;
  border-radius: 8px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.68);
}

.outcome-notice[hidden] {
  display: none;
}

.outcome-notice strong {
  font-size: 1rem;
}

.outcome-notice span {
  line-height: 1.6;
}

.editable-zone {
  display: inline;
  padding: 6px 8px 6px 0;
  outline: 2px solid rgba(246, 184, 63, 0.82);
  background: rgba(255, 243, 199, 0.62);
  border-radius: 8px;
  box-shadow: 0 0 0 4px rgba(255, 235, 161, 0.2);
}

.zone-label {
  display: inline-flex;
  align-items: center;
  margin-right: 8px;
  padding: 2px 7px;
  color: white;
  background: linear-gradient(180deg, #f9c85b, #b76d0b);
  border-radius: 999px;
  font-size: 0.82rem;
  vertical-align: middle;
  box-shadow: 0 4px 10px rgba(120, 67, 6, 0.18);
}

.editable {
  display: inline;
  min-height: auto;
  margin: 0 2px;
  padding: 2px 6px;
  border: none;
  border-radius: 5px;
  color: inherit;
  font-weight: 700;
  cursor: pointer;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  line-break: anywhere;
  overflow-wrap: anywhere;
  white-space: normal;
  box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0.65);
}

.editable:hover:not(.locked) {
  outline: 2px solid rgba(23, 32, 51, 0.16);
}

.editable:focus-visible {
  outline: 2px solid rgba(23, 32, 51, 0.34);
  outline-offset: 2px;
}

.editable.role {
  background: var(--blue-soft);
  color: #1d4ed8;
}

.editable.quote {
  background: linear-gradient(180deg, #fff8dd, var(--amber-soft));
  color: var(--amber);
}

.editable.item {
  background: var(--green-soft);
  color: var(--green);
}

.editable.locked {
  cursor: not-allowed;
  opacity: 0.64;
}

.inline-unknown {
  display: inline-flex;
  margin-left: 8px;
  padding: 2px 7px;
  color: var(--amber);
  background: #fff7ed;
  border: 1px dashed var(--amber);
  border-radius: 999px;
  font-size: 0.84rem;
  vertical-align: middle;
}

.unknown-tail {
  margin-top: 18px;
  padding: 16px;
  border: 1px dashed var(--amber);
  border-radius: 8px;
  color: var(--muted);
  background: #fff7ed;
}

.unknown-line {
  height: 14px;
  margin: 11px 0;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(180, 83, 9, 0.12), rgba(180, 83, 9, 0.28), rgba(180, 83, 9, 0.12));
  animation: pulse 1.2s ease-in-out infinite;
}

.unknown-line:nth-child(2) {
  width: 84%;
}

.unknown-line:nth-child(3) {
  width: 68%;
}

.unknown-line:nth-child(4) {
  width: 92%;
}

.story-actions {
  align-items: center;
  align-self: start;
  align-content: center;
  gap: 6px;
  height: 58px;
  min-height: 58px;
  margin: 0 0 16px;
  overflow: visible;
}

.challenge-layout .story-actions {
  margin: 15px 0;
}

.story-actions .button {
  flex: 0 1 auto;
  min-height: 58px;
}

.loading {
  display: none;
  align-items: center;
  gap: 10px;
  color: var(--teal);
  min-height: 34px;
}

.loading.show {
  display: flex;
}

.action-loading {
  flex: 1 1 260px;
  min-width: min(320px, 100%);
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.78);
}

.action-loading #loadingText {
  flex: 0 0 auto;
  font-weight: 700;
  white-space: nowrap;
}

.action-progress-track {
  flex: 1 1 120px;
  height: 8px;
  overflow: hidden;
  background: #d7edff;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.action-progress-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--blue), var(--gold));
  border-radius: inherit;
  transition: width 0.24s ease;
}

.progress-panel {
  position: relative;
  overflow: hidden;
  padding: 16px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(232, 246, 255, 0.9));
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.control-pane .progress-panel {
  width: 100%;
}

.progress-panel[hidden] {
  display: none;
}

.progress-head,
.progress-meta,
.progress-step {
  display: flex;
  align-items: center;
}

.progress-head,
.progress-meta {
  justify-content: space-between;
  gap: 12px;
}

.progress-kicker {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.78rem;
}

#progressTitle {
  display: block;
  font-size: 1rem;
}

#progressElapsed,
#progressPercent {
  color: var(--teal);
  font-weight: 700;
  white-space: nowrap;
}

.progress-track {
  height: 10px;
  margin: 14px 0 10px;
  overflow: hidden;
  background: #d7edff;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.progress-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--blue), var(--gold));
  border-radius: inherit;
  transition: width 0.24s ease;
}

.progress-meta {
  color: var(--muted);
  font-size: 0.92rem;
}

.progress-steps {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.progress-step {
  gap: 10px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.progress-step-dot {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--line-strong);
}

.progress-step-body {
  flex: 1;
  min-width: 0;
}

.progress-step-body strong,
.progress-step-body span {
  display: block;
}

.progress-step-body strong {
  margin-bottom: 2px;
  font-size: 0.92rem;
}

.progress-step-body span {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

.progress-step time {
  color: var(--muted);
  font-size: 0.82rem;
  white-space: nowrap;
}

.progress-step.done .progress-step-dot {
  background: var(--blue);
}

.progress-step.active {
  border-color: rgba(47, 140, 255, 0.36);
  background: #e8f6ff;
}

.progress-step.active .progress-step-dot {
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(47, 140, 255, 0.13);
}

.progress-step.error {
  border-color: rgba(190, 18, 60, 0.24);
  background: var(--rose-soft);
}

.progress-step.error .progress-step-dot {
  background: var(--rose);
}

.spinner {
  width: 18px;
  height: 18px;
  border: 3px solid rgba(47, 140, 255, 0.22);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.error:not(.progress-step) {
  display: none;
  padding: 12px 14px;
  color: var(--rose);
  background: var(--rose-soft);
  border: 1px solid rgba(190, 18, 60, 0.22);
  border-radius: 8px;
  line-height: 1.6;
}

.error.show {
  display: block;
}

.history,
.ending {
  position: relative;
  overflow: hidden;
  padding: 18px;
}

.history {
  margin-top: 3px;
}

.history ol {
  margin: 0;
  padding-left: 22px;
  color: var(--muted);
  line-height: 1.8;
}

.ending {
  display: none;
  border-color: rgba(15, 118, 110, 0.35);
  background: #e8f6ff;
}

.ending.bad {
  color: var(--rose);
  background: var(--rose-soft);
  border-color: rgba(190, 18, 60, 0.28);
}

.ending.neutral {
  color: var(--amber);
  background: var(--amber-soft);
  border-color: rgba(180, 83, 9, 0.28);
}

.ending.good {
  color: var(--green);
  background: var(--green-soft);
  border-color: rgba(21, 128, 61, 0.28);
}

.ending.show {
  display: block;
}

.final-story {
  margin-bottom: 12px;
  color: var(--ink);
  line-height: 1.9;
  font-size: 1.08rem;
  white-space: pre-line;
}

.ending.bad .final-story,
.ending.bad .ending-note {
  color: var(--rose);
}

.ending.neutral .final-story,
.ending.neutral .ending-note {
  color: var(--amber);
}

.ending.good .final-story,
.ending.good .ending-note {
  color: var(--green);
}

.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(11, 37, 71, 0.62);
  backdrop-filter: blur(8px);
}

.modal-mask.show {
  display: flex;
}

.modal {
  position: relative;
  overflow: hidden;
  width: min(540px, 100%);
  padding: 20px;
  color: var(--ink);
  background: linear-gradient(180deg, #ffffff, #eaf7ff);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--glow);
}

.modal::before {
  content: "";
  display: block;
  height: 3px;
  margin: -20px -20px 17px;
  border-radius: 8px 8px 0 0;
  background: linear-gradient(90deg, var(--cyan), rgba(255, 255, 255, 0.2), var(--gold));
}

.modal p {
  color: var(--muted);
  line-height: 1.6;
}

.option-list {
  display: grid;
  gap: 10px;
  margin: 16px 0;
}

.option {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff, #eff8ff);
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.option:hover {
  transform: translateY(-1px);
  border-color: rgba(47, 140, 255, 0.42);
  box-shadow: 0 10px 22px rgba(35, 103, 160, 0.14);
}

.option input[type="radio"] {
  width: auto;
  min-height: auto;
  margin-top: 5px;
}

.custom-option-body {
  display: grid;
  flex: 1;
  gap: 8px;
}

.custom-option-body strong {
  font-size: 0.95rem;
}

.custom-option-body input {
  width: 100%;
  min-height: 38px;
  margin-top: 0;
}

@media (max-width: 920px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .mode-choice-grid {
    grid-template-columns: 1fr;
  }

  .challenge-status {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar-intro,
  .metrics {
    justify-content: flex-start;
  }

  .topbar-intro {
    justify-items: start;
    text-align: left;
  }
}

@media (max-width: 620px) {
  .app-shell {
    width: min(100% - 18px, 1220px);
    padding-top: 10px;
  }

  .topbar,
  .pane-section,
  .story-board,
  .history,
  .ending {
    padding: 16px;
  }

  h1 {
    font-size: 1.7rem;
  }

  .story-text {
    font-size: 1.06rem;
  }

  .split-fields {
    display: grid;
  }

  .icon-picker {
    grid-template-columns: 1fr;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  50% {
    opacity: 0.42;
  }
}