.demo-section {
  --demo-ink: #2d211e;
  --demo-muted: #66564f;
  --demo-line: #e8dcd1;
  --demo-accent: #a23d25;
  --demo-accent-text: #85301e;
  --demo-accent-soft: #f5dfd3;
  --demo-canvas: #f5eee7;
  --demo-surface: #fffdf9;
  max-width: 970px;
  color: var(--demo-ink);
}

.demo-section .demo-intro { margin-bottom: 1.75rem; text-align: center; }
.demo-section .demo-intro h2 {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 2.7rem);
  font-weight: 740;
  line-height: 1.12;
  letter-spacing: -.045em;
}
.demo-section .demo-intro p {
  margin: .65rem auto 0;
  max-width: 39rem;
  color: var(--demo-muted);
  font-size: clamp(.92rem, 2vw, 1.05rem);
}
.demo-section .demo-shell {
  display: grid;
  grid-template-columns: 146px minmax(0, 1fr);
  border: 1px solid var(--demo-line);
  border-radius: 20px;
  overflow: hidden;
  background: var(--demo-canvas);
  box-shadow: 0 14px 35px #432a1d14, 0 2px 6px #432a1d08;
  text-align: left;
}
.demo-section .demo-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.45rem;
  padding: 1.18rem .75rem;
  border-right: 1px solid var(--demo-line);
  background: #eee4da;
}
.demo-section .demo-sidebar img {
  display: block;
  width: 104px;
  height: auto;
  margin-left: .3rem;
}
.demo-section .demo-sidebar-current {
  display: flex;
  align-items: center;
  gap: .55rem;
  min-height: 37px;
  padding-inline: .6rem;
  border: 1px solid #e7c5b4;
  border-radius: 8px;
  background: var(--demo-accent-soft);
  color: var(--demo-accent-text);
  font-size: .8rem;
  font-weight: 700;
}
.demo-section .demo-sidebar-calendar {
  width: 13px;
  height: 13px;
  border: 1px solid currentColor;
  border-top-width: 4px;
  border-radius: 2px;
}
.demo-section .demo-workspace { min-width: 0; padding: 1.35rem; }
.demo-section .demo-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .8rem;
  margin-bottom: 1rem;
}
.demo-section .demo-toolbar h3 {
  margin: 0;
  font-size: 1.26rem;
  line-height: 1.18;
  letter-spacing: -.027em;
}
.demo-section .demo-toolbar p {
  margin: .2rem 0 0;
  color: var(--demo-muted);
  font-size: .76rem;
}
.demo-section .demo-pill {
  padding: .31rem .55rem;
  border: 1px solid var(--demo-line);
  border-radius: 999px;
  background: #faf7f2;
  color: var(--demo-muted);
  font-size: .7rem;
  font-weight: 720;
}
.demo-section .demo-panels {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  align-items: stretch;
  gap: .85rem;
  margin: 0;
}
.demo-section .demo-card {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--demo-line);
  border-radius: 13px;
  background: var(--demo-surface);
  box-shadow: 0 3px 8px #432a1d09;
}
.demo-section .demo-card-heading { margin-bottom: .95rem; }
.demo-section .demo-card-heading h4 {
  margin: 0;
  color: var(--demo-ink);
  font-size: 1rem;
  font-weight: 750;
  line-height: 1.25;
  letter-spacing: -.01em;
}
.demo-section .demo-card-heading p {
  margin: .26rem 0 0;
  color: var(--demo-muted);
  font-size: .79rem;
  line-height: 1.42;
}
.demo-section fieldset { min-width: 0; padding: 0; border: 0; margin: 0 0 .9rem; }
.demo-section legend, .demo-section .demo-duration label {
  margin-bottom: .42rem;
  padding: 0;
  color: var(--demo-ink);
  font-size: .76rem;
  font-weight: 740;
}
.demo-section .demo-service { display: block; margin-top: .38rem; cursor: pointer; }
.demo-section .demo-service:first-of-type { margin-top: 0; }
.demo-section .demo-service > span,
.demo-section .demo-slot > span,
.demo-section .demo-day > span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  border: 1px solid var(--demo-line);
  border-radius: 8px;
  color: var(--demo-ink);
  font-size: .76rem;
  line-height: 1.2;
}
.demo-section .demo-service > span {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: .35rem;
  padding: .55rem .64rem;
}
.demo-section .demo-service strong { font-weight: 720; }
.demo-section .demo-service small { color: var(--demo-muted); font-size: .7rem; white-space: nowrap; }
.demo-section :is(.demo-service, .demo-slot, .demo-day) input:checked + span {
  border-color: var(--demo-accent);
  background: var(--demo-accent-soft);
  color: var(--demo-accent-text);
  box-shadow: inset 0 0 0 1px var(--demo-accent);
}
.demo-section :is(.demo-service, .demo-slot, .demo-day) input:focus-visible + span,
.demo-section :is(button, select):focus-visible {
  outline: 2px solid var(--demo-accent-text);
  outline-offset: 2px;
}
.demo-section .demo-duration label { display: block; }
.demo-section .demo-duration select {
  width: 100%;
  min-height: 40px;
  padding: .5rem .56rem;
  border: 1px solid var(--demo-line);
  border-radius: 8px;
  background: var(--demo-surface);
  color: var(--demo-ink);
  font: inherit;
  font-size: .79rem;
}
.demo-section .demo-calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .5rem;
  margin-bottom: .45rem;
}
.demo-section .demo-calendar-header p { margin: 0; font-size: .78rem; font-weight: 740; }
.demo-section .demo-week-controls { display: flex; gap: .25rem; }
.demo-section .demo-week-controls button {
  display: grid;
  width: 33px;
  height: 32px;
  place-items: center;
  padding: 0;
  border: 1px solid var(--demo-line);
  border-radius: 7px;
  background: var(--demo-surface);
  color: var(--demo-accent-text);
  font: 500 1.28rem/1 system-ui, sans-serif;
  cursor: pointer;
}
.demo-section .demo-week-controls button:disabled { color: #8a7569; background: var(--demo-canvas); cursor: default; }
.demo-section .demo-dates { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: .25rem; }
.demo-section .demo-day { min-width: 0; cursor: pointer; }
.demo-section .demo-day > span { flex-direction: column; gap: .2rem; min-height: 43px; font-weight: 700; }
.demo-section .demo-day .demo-weekday { color: var(--demo-muted); font-size: .64rem; font-weight: 570; }
.demo-section .demo-day input:checked + span .demo-weekday { color: var(--demo-accent-text); }
.demo-section .demo-day input:disabled + span {
  border-color: transparent;
  background: var(--demo-canvas);
  color: var(--demo-muted);
  cursor: default;
}
.demo-section .demo-times { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .3rem; }
.demo-section .demo-slot { cursor: pointer; }
.demo-section .demo-slot > span { font-variant-numeric: tabular-nums; font-weight: 650; }
.demo-section .demo-empty { grid-column: 1 / -1; margin: .1rem 0; color: var(--demo-muted); font-size: .8rem; }
.demo-section .demo-confirm {
  width: 100%;
  min-height: 40px;
  padding: .5rem .75rem;
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--demo-accent);
  color: #fff;
  font: inherit;
  font-size: .81rem;
  font-weight: 720;
  cursor: pointer;
}
.demo-section .demo-confirm:disabled { background: var(--demo-canvas); color: var(--demo-muted); cursor: default; }
.demo-section .demo-result {
  margin: 0;
  border-radius: 8px;
  color: #186346;
  font-size: .77rem;
  font-weight: 650;
  line-height: 1.45;
}
.demo-section .demo-result:not(:empty) { margin-top: .55rem; padding: .55rem .62rem; background: #e8f6ef; }
.demo-section .demo-sr,
.demo-section :is(.demo-service, .demo-slot, .demo-day) > input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 860px) {
  .demo-section .demo-shell { grid-template-columns: 118px minmax(0, 1fr); }
  .demo-section .demo-sidebar img { width: 86px; margin-left: 0; }
  .demo-section .demo-workspace { padding: .95rem; }
}
@media (max-width: 690px) {
  .demo-section .demo-shell, .demo-section .demo-panels { grid-template-columns: minmax(0, 1fr); }
  .demo-section .demo-sidebar {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: .7rem .95rem;
    border-right: 0;
    border-bottom: 1px solid var(--demo-line);
  }
  .demo-section .demo-sidebar-current { min-height: 29px; }
  .demo-section .demo-sidebar img { width: 98px; }
}
@media (max-width: 360px) {
  .demo-section .demo-card, .demo-section .demo-workspace { padding: .7rem; }
  .demo-section .demo-times { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}