:root {
  color-scheme: light;
  --bg: #f7f3ed;
  --ink: #3d332c;
  --muted: #6d6156;
  --line: #e6d8ca;
  --line-strong: #d8c6b4;
  --panel: #ffffff;
  --panel-soft: #fefaf5;
  --warm-1: #b67c52;
  --warm-2: #8a5a35;
  --warm-3: #e3b083;
  --shadow: 0 20px 48px rgba(70, 52, 39, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(780px 320px at 8% -8%, rgba(227, 186, 145, 0.35), transparent 57%),
    radial-gradient(700px 280px at 96% 0%, rgba(214, 176, 142, 0.3), transparent 62%),
    linear-gradient(180deg, #f8f4ee 0%, #f3e8dc 100%);
  color: var(--ink);
  font-family: "Inter", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", "Segoe UI", "Noto Sans", sans-serif;
}

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

button {
  border: 0;
  cursor: pointer;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.workspace {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(300px, 0.9fr) minmax(360px, 1.1fr);
  align-items: start;
}

.intro {
  border: 1px solid rgba(96, 80, 62, 0.18);
  border-radius: 12px;
  padding: 26px;
  background: linear-gradient(140deg, rgba(151, 104, 74, 0.95), rgba(170, 124, 92, 0.9));
  color: #f8fafc;
  box-shadow: 0 24px 50px rgba(70, 53, 39, 0.18);
}

.eyebrow {
  margin: 0 0 8px;
  color: rgba(248, 250, 252, 0.84);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.18;
}

h1 {
  max-width: 9.5em;
  font-size: clamp(30px, 4.3vw, 52px);
  font-weight: 700;
}

h2 {
  font-size: 28px;
  font-weight: 700;
}

h3 {
  font-size: 18px;
  font-weight: 700;
}

.intro-copy {
  margin: 14px 0 0;
  color: rgba(241, 245, 249, 0.94);
  font-size: 16px;
  line-height: 1.65;
  max-width: 34rem;
}

.status-row {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  min-height: 30px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  background: rgba(255, 255, 255, 0.16);
  color: #f8fafc;
  padding: 7px 12px;
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 700;
}

.pill.ok {
  border-color: rgba(34, 197, 94, 0.45);
  background: rgba(22, 163, 74, 0.18);
}

.pill.warn {
  border-color: rgba(251, 191, 36, 0.45);
  background: rgba(251, 191, 36, 0.18);
}

.pill.pending {
  background: rgba(255, 255, 255, 0.16);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.upload-panel {
  padding: 24px;
  display: grid;
  gap: 16px;
  background: var(--panel-soft);
}

.form-grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.55fr) minmax(240px, 0.45fr);
  gap: 16px;
}

.date-host-grid {
  grid-template-columns: minmax(280px, 1fr) minmax(320px, 1fr);
  align-items: start;
  align-content: start;
  width: 100%;
}

.date-inline {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 2px;
}

.date-inline span {
  margin: 0;
  white-space: nowrap;
  align-self: center;
  min-width: 84px;
  color: #3d3228;
  font-size: 14px;
  font-weight: 700;
}

.date-inline input {
  margin: 0;
  width: 100%;
  max-width: 320px;
}

.participant-large {
  grid-column: 1 / -1;
  width: 100%;
  padding-right: 0;
  padding-top: 2px;
}

.speaker-picker-field {
  margin-top: 4px;
  align-self: start;
  width: 100%;
  justify-self: stretch;
}

.participant-select-row {
  display: grid;
  gap: 10px;
  margin-bottom: 10px;
}

.participant-select-row select {
  width: 100%;
  min-height: 42px;
}

.field {
  display: grid;
  gap: 8px;
}

.participant-picker {
  display: grid;
  gap: 10px;
  min-height: 146px;
  padding: 2px 0 4px;
}

.participant-entry-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
}

.inline-action {
  min-width: 84px;
}

.participant-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.participant-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid #d9c8b6;
  border-radius: 999px;
  background: #fff7ef;
  color: #4b4137;
  font-weight: 700;
}

.participant-chip strong {
  font-size: 16px;
  line-height: 1;
}

.field span {
  color: #4b4137;
  font-size: 14px;
  font-weight: 700;
}

.field-hint {
  color: var(--muted);
  font-size: 13px;
}

.checkbox-field {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #4b4137;
  font-size: 14px;
  font-weight: 700;
}

.checkbox-field input {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--warm-1);
  flex: 0 0 auto;
}

input,
textarea,
select {
  width: 100%;
  padding: 12px 12px;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--ink);
  outline: none;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--warm-1);
  box-shadow: 0 0 0 3px rgba(182, 124, 82, 0.18);
  background: #fff;
}

.file-field input {
  padding: 12px;
  background: linear-gradient(180deg, #faf4ee, #f1e5d6);
}

.file-field input::file-selector-button {
  border: 1px solid #d8c4b4;
  border-radius: 8px;
  padding: 9px 12px;
  margin-right: 10px;
  background: #fff;
  transition: all 0.2s ease;
}

.file-field input::file-selector-button:hover {
  border-color: var(--warm-1);
  background: #f6e9df;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.primary,
.secondary {
  border-radius: 8px;
  min-height: 42px;
  padding: 0 18px;
  font-weight: 700;
  transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease, color 0.16s ease;
}

.primary {
  color: #fff;
  border: 1px solid #8c5f3f;
  background: linear-gradient(135deg, var(--warm-1), var(--warm-2));
}

.primary:hover {
  transform: translateY(-1px);
  background: linear-gradient(135deg, #a46d48, #77462d);
}

.secondary {
  border: 1px solid #d9c8b6;
  background: #fff;
  color: #3d3228;
}

.secondary:hover {
  border-color: var(--warm-1);
  color: var(--warm-2);
  transform: translateY(-1px);
}

.progress-text {
  color: var(--muted);
  font-size: 14px;
}

.settings-wrap,
.result-wrap {
  margin-top: 28px;
}

.result-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-end;
  margin-bottom: 12px;
}

.result-toolbar.compact {
  margin-bottom: 12px;
}

.settings-panel {
  padding: 24px;
  display: grid;
  gap: 16px;
}

.step-row {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  align-items: start;
}

.collapsible-head {
  grid-template-columns: 36px minmax(0, 1fr) auto;
  align-items: center;
}

.collapse-toggle {
  min-width: 82px;
  justify-self: end;
  padding: 0 14px;
}

.collapsible-content {
  display: grid;
  gap: 16px;
}

.collapsible-content[hidden] {
  display: none;
}

.settings-panel.is-collapsed {
  box-shadow: 0 10px 28px rgba(70, 52, 39, 0.08);
}

.nested-step {
  margin-top: 4px;
}

.settings-subpanel {
  display: grid;
  gap: 16px;
}

.settings-subpanel + .settings-subpanel {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.step-number {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--warm-1), var(--warm-2));
  font-weight: 800;
  box-shadow: 0 6px 14px rgba(126, 94, 74, 0.24);
}

.step-row h3 {
  margin-bottom: 5px;
}

.meta {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.link-button {
  margin-top: 10px;
  display: inline-flex;
  align-items: center;
  height: 36px;
  border: 1px solid #d8beab;
  border-radius: 7px;
  padding: 0 12px;
  color: var(--warm-2);
  text-decoration: none;
  background: #fff;
  font-weight: 700;
}

.link-button:hover {
  border-color: var(--warm-1);
}

.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.toolbar-actions .secondary {
  background: #ffffff;
}

.result-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(320px, 0.82fr) minmax(360px, 1.18fr);
}

.structured,
.markdown-panel {
  min-height: 420px;
  padding: 22px;
}

.structured h3,
.markdown-panel h3 {
  margin-bottom: 10px;
}

.section {
  border-top: 1px solid #e8ddd0;
  padding: 14px 0;
}

.section:first-child {
  border-top: 0;
  padding-top: 0;
}

.section-title {
  margin: 0 0 8px;
  color: #6f4a34;
  font-size: 18px;
  font-weight: 700;
}

.section .markdown-list {
  margin: 8px 0 8px 0;
  padding-left: 22px;
}

.section li {
  margin: 8px 0;
  line-height: 1.7;
}

.section li.checked::before {
  content: "☑ ";
  margin-right: 6px;
  color: #1f7a4a;
}

.section li.unchecked::before {
  content: "☐ ";
  margin-right: 6px;
  color: #9b6a46;
}

.section li.checked,
.section li.unchecked {
  list-style: none;
}

.section-paragraph {
  margin: 2px 0 8px;
  line-height: 1.7;
  color: var(--ink);
}

.section ul,
.section ol {
  margin: 6px 0 6px 4px;
}

.section .markdown-list ul,
.section .markdown-list ol {
  margin-top: 8px;
}

.markdown-section.level-1 .section-title {
  font-size: 20px;
}

.markdown-section.level-2 .section-title {
  margin-left: 8px;
  font-size: 18px;
}

.markdown-section.level-3 .section-title {
  margin-left: 16px;
  font-size: 17px;
}

.markdown-section.level-4 .section-title {
  margin-left: 24px;
  font-size: 16px;
}

.markdown-editor {
  margin: 0;
  padding: 16px;
  border-radius: 8px;
  max-height: 620px;
  overflow: auto;
  background: #20170f;
  color: #e2dfda;
  white-space: pre-wrap;
  word-break: break-word;
  width: 100%;
  min-height: 620px;
  resize: vertical;
  border: 1px solid var(--line-strong);
}

.markdown-editor:read-only {
  background: #f8f5ef;
  color: var(--ink);
  cursor: default;
}

.markdown-editor:focus {
  border-color: var(--warm-1);
  box-shadow: 0 0 0 3px rgba(182, 124, 82, 0.18);
}

.notice {
  border-left: 4px solid #dc2626;
  background: #fef2f2;
  color: #7f1d1d;
  padding: 10px 12px;
}

@media (max-width: 960px) {
  .workspace,
  .result-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .intro {
    padding: 22px;
  }
}

@media (max-width: 700px) {
  .shell {
    width: min(1180px, calc(100vw - 20px));
    padding-top: 16px;
  }

  h1 {
    font-size: 31px;
  }

  .result-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .toolbar-actions,
  .actions {
    width: 100%;
  }

  .secondary,
  .primary {
    width: 100%;
  }

  .collapsible-head {
    grid-template-columns: 34px minmax(0, 1fr);
  }

  .collapse-toggle {
    grid-column: 1 / -1;
    width: 100%;
  }

  .participant-entry-row {
    grid-template-columns: 1fr;
  }

  .inline-action {
    width: 100%;
  }
}