.skills-demo {
  --demo-bg: #ffffff;
  --demo-surface: #f7f7f5;
  --demo-surface-raised: #efefed;
  --demo-line: #dededb;
  --demo-line-soft: #eaeae7;
  --demo-ink: #202123;
  --demo-muted: #666762;
  --demo-dim: #969791;
  --demo-accent: #202123;
  --demo-success: #2f7d4d;
  --demo-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.skills-demo button,
.skills-demo textarea { font: inherit; }
.skills-demo button:focus-visible,
.skills-demo textarea:focus-visible,
.skills-demo a:focus-visible { outline: 3px solid #ffd166; outline-offset: 3px; }

.demo-section-heading { margin-bottom: clamp(34px, 5vw, 70px); }
.demo-section-heading > p:last-child { max-width: 66ch; margin: 24px 0 0; color: var(--muted); font-size: clamp(1rem, 1.3vw, 1.16rem); line-height: 1.7; }

.demo-app {
  max-width: 1500px;
  margin: 0 auto;
  overflow: hidden;
  color: var(--demo-ink);
  border: 1px solid var(--demo-line);
  background: var(--demo-bg);
  border-radius: 12px;
  box-shadow: 0 30px 90px rgba(0, 0, 0, .28);
}

.demo-appbar {
  min-height: 58px;
  padding: 10px 17px;
  display: grid;
  grid-template-columns: 92px 1fr auto;
  align-items: center;
  gap: 18px;
  border-bottom: 1px solid var(--demo-line);
  background: var(--demo-surface);
}
.demo-appbar > strong { font-size: .82rem; font-weight: 650; }
.demo-window-controls { display: flex; gap: 7px; }
.demo-window-controls span { width: 10px; height: 10px; border-radius: 50%; background: #34c759; }
.demo-window-controls span:first-child { background: #ff5f57; }
.demo-window-controls span:nth-child(2) { background: #febc2e; }
.demo-model { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 7px; }
.demo-model span { padding: 5px 2px; color: var(--demo-muted); border: 0; font: 600 .59rem/1.2 var(--demo-mono); letter-spacing: .02em; }
.demo-model span + span::before { content: "·"; margin-right: 7px; color: var(--demo-dim); }
.demo-model .demo-skills-state { color: #c3bdb4; }
.demo-model .demo-skills-state.is-active { color: var(--demo-success); }

.demo-layout { min-height: 680px; display: grid; grid-template-columns: 184px minmax(0, 1fr) 310px; }
.demo-sidebar { min-width: 0; padding: 14px 10px 14px; display: flex; flex-direction: column; border-right: 1px solid var(--demo-line); background: #f5f5f3; }
.demo-sidebar-actions { display: grid; gap: 2px; margin-bottom: 17px; }
.demo-sidebar-actions span { padding: 7px 8px; display: flex; align-items: center; gap: 9px; color: #383936; font-size: .7rem; }
.demo-sidebar-actions b { width: 14px; color: #50514d; font-size: .76rem; text-align: center; }
.demo-sidebar-title { padding: 0 8px 7px; display: flex; align-items: center; gap: 10px; color: var(--demo-dim); font-size: .61rem; letter-spacing: .02em; }
.demo-sidebar nav { display: grid; gap: 3px; }
.demo-sidebar nav span { padding: 10px 9px; overflow: hidden; color: var(--demo-dim); border: 1px solid transparent; font-size: .72rem; line-height: 1.35; text-overflow: ellipsis; white-space: nowrap; }
.demo-sidebar nav span.is-active { color: var(--demo-ink); border-color: transparent; border-radius: 6px; background: #e8e8e5; }
.demo-sidebar-status { margin-top: auto; padding: 12px 8px 2px; display: flex; align-items: center; gap: 8px; color: var(--demo-muted); border-top: 1px solid var(--demo-line-soft); font: .61rem/1.3 var(--demo-mono); }
.demo-sidebar-status > span:first-child { width: 7px; height: 7px; flex: 0 0 auto; border-radius: 50%; background: #b5b5b0; }
.demo-sidebar-status > span:first-child.is-active { background: var(--demo-success); box-shadow: 0 0 0 4px rgba(47, 125, 77, .1); }

.demo-conversation { min-width: 0; display: grid; grid-template-rows: auto minmax(0, 1fr) auto; background: var(--demo-bg); }
.demo-notice { min-height: 42px; padding: 8px 18px; display: flex; align-items: center; gap: 12px; color: var(--demo-muted); border-bottom: 1px solid var(--demo-line-soft); background: #fafaf9; }
.demo-notice span { color: var(--demo-dim); font: 700 .55rem/1.2 var(--demo-mono); letter-spacing: .055em; }
.demo-notice p { margin: 0; font-size: .7rem; }
.demo-transcript { min-height: 0; max-height: 555px; padding: 30px clamp(20px, 4vw, 52px); overflow-y: auto; overscroll-behavior: contain; scrollbar-color: #45413c transparent; }
.demo-transcript:empty::before { content: "O pedido está pronto. Executa-o primeiro sem as Skills."; max-width: 34ch; min-height: 360px; margin: 0 auto; display: grid; place-items: center; color: var(--demo-dim); text-align: center; font-size: .86rem; line-height: 1.6; }

.demo-message { max-width: 780px; margin: 0 auto 30px; animation: demo-message-in .35s ease both; }
.demo-message header { margin-bottom: 10px; display: flex; align-items: center; gap: 9px; color: var(--demo-muted); font-size: .72rem; }
.demo-message header > span:not(.demo-agent-mark) { padding: 3px 6px; color: var(--demo-accent); border: 1px solid rgba(255, 75, 22, .3); font: .55rem/1.2 var(--demo-mono); text-transform: uppercase; }
.demo-message > p { margin: 0; }
.demo-message.is-user { max-width: 580px; margin-right: 0; padding: 14px 16px; border: 0; border-radius: 11px; background: var(--demo-surface-raised); }
.demo-message.is-user > p { color: var(--demo-ink); font-size: .91rem; }
.demo-message.is-assistant { padding-top: 4px; }
.demo-agent-mark { width: 24px; height: 24px; display: grid; place-items: center; color: #fff; border: 0; border-radius: 50%; background: #202123; font: 800 .64rem/1 var(--demo-mono); }
.demo-work-summary { margin: 0 0 16px !important; padding: 0 0 10px; color: var(--demo-muted); border-bottom: 1px solid var(--demo-line-soft); background: transparent; font: .68rem/1.5 var(--demo-mono); }
.demo-message-body { color: #30312e; font-size: .88rem; line-height: 1.68; }
.demo-message-body > p { margin: 0 0 15px; }
.demo-message-body ul { margin: 10px 0 17px; padding-left: 20px; }
.demo-message-body li + li { margin-top: 5px; }
.demo-answer-lead { color: var(--demo-ink); font-size: .96rem; }
.demo-structured-answer { display: block; }
.demo-structured-answer > .demo-answer-lead { margin: 0; padding: 0 0 19px; font-weight: 600; }
.demo-structured-answer section { padding: 18px 0; border-top: 1px solid var(--demo-line-soft); }
.demo-structured-answer h4 { margin: 0 0 8px; color: #30312e; font-size: .86rem; line-height: 1.4; }
.demo-structured-answer p,
.demo-structured-answer ul { margin-top: 0; margin-bottom: 0; }
.demo-structured-answer .demo-essential-questions { border-top-color: rgba(47, 125, 77, .35); }
.demo-essential-questions h4 { color: var(--demo-success); }

.demo-composer { padding: 15px 18px 14px; border-top: 0; background: var(--demo-bg); }
.demo-composer > label { display: block; margin-bottom: 7px; color: var(--demo-muted); font: .61rem/1.3 var(--demo-mono); text-transform: uppercase; letter-spacing: .05em; }
.demo-composer > div { display: grid; grid-template-columns: minmax(0, 1fr) auto; overflow: hidden; border: 1px solid #d2d2ce; border-radius: 13px; background: var(--demo-bg); box-shadow: 0 3px 12px rgba(0,0,0,.06); }
.demo-composer textarea { min-width: 0; padding: 12px 13px; resize: none; color: var(--demo-ink); border: 0; outline: 0; background: transparent; font-size: .86rem; line-height: 1.45; }
.demo-composer button { min-width: 160px; margin: 6px; padding: 9px 13px; color: #fff; border: 1px solid #202123; border-radius: 8px; background: #202123; cursor: pointer; font-size: .71rem; font-weight: 750; }
.demo-composer button:hover:not(:disabled) { color: #fff; background: #3b3c3e; }
.demo-composer button:disabled { color: var(--demo-muted); border-color: var(--demo-line); background: var(--demo-surface-raised); cursor: progress; }
.demo-composer small { display: block; margin-top: 7px; color: var(--demo-dim); font-size: .62rem; }

.demo-activity { min-width: 0; padding: 18px 14px; overflow: hidden; border-left: 1px solid var(--demo-line); background: #fafaf9; }
.demo-panel-heading { min-height: 25px; display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--demo-dim); font: 700 .58rem/1.2 var(--demo-mono); letter-spacing: .07em; text-transform: uppercase; }
.demo-running-dot { width: 7px; height: 7px; border-radius: 50%; background: #b5b5b0; }
.demo-running-dot.is-running { background: #202123; animation: demo-pulse 1.4s ease-in-out infinite; }
.demo-activity > ol { min-height: 174px; max-height: 205px; margin: 12px 0 22px; padding: 0 0 18px; display: grid; align-content: start; gap: 9px; overflow-y: auto; border-bottom: 1px solid var(--demo-line-soft); list-style: none; }
.demo-activity > ol li { display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 7px; color: var(--demo-muted); font-size: .66rem; line-height: 1.42; animation: demo-activity-in .25s ease both; }
.demo-activity > ol li.is-muted { color: var(--demo-dim); }
.demo-activity > ol strong { display: block; margin-bottom: 2px; color: #444541; font-size: .62rem; }
.demo-activity > ol p { margin: 0; }
.demo-activity-check { color: var(--demo-success); font: .67rem/1.4 var(--demo-mono); }
.demo-skills-panel ul { margin: 10px 0 0; padding: 0; display: grid; list-style: none; }
.demo-skills-panel li { min-height: 48px; padding: 7px 0; display: grid; grid-template-columns: 24px minmax(0, 1fr) 8px; align-items: start; gap: 7px; color: var(--demo-dim); border-top: 1px solid var(--demo-line-soft); transition: color .25s ease, opacity .25s ease; }
.demo-skills-panel li > span { padding-top: 2px; font: .55rem/1.4 var(--demo-mono); }
.demo-skills-panel li strong { display: block; font-size: .65rem; line-height: 1.32; }
.demo-skills-panel li p { max-height: 0; margin: 0; overflow: hidden; opacity: 0; font-size: .58rem; line-height: 1.4; transition: max-height .3s ease, margin .3s ease, opacity .3s ease; }
.demo-skills-panel li i { width: 7px; height: 7px; margin-top: 4px; border-radius: 50%; background: #b5b5b0; }
.demo-skills-panel li.is-active { color: #3f403c; }
.demo-skills-panel li.is-active p { max-height: 48px; margin-top: 4px; opacity: 1; color: var(--demo-muted); }
.demo-skills-panel li.is-active i { background: var(--demo-success); }

.demo-footer { min-height: 54px; padding: 9px 16px; display: flex; align-items: center; justify-content: space-between; gap: 18px; border-top: 1px solid var(--demo-line); background: #fafaf9; }
.demo-footer p { margin: 0; color: var(--demo-muted); font: .61rem/1.4 var(--demo-mono); }
.demo-footer > div { display: flex; gap: 8px; }
.demo-text-button { padding: 7px 9px; color: var(--demo-muted); border: 0; border-bottom: 1px solid #5a554f; background: transparent; cursor: pointer; font-size: .68rem; }
.demo-text-button:hover { color: var(--demo-accent); border-color: var(--demo-accent); }

.demo-comparison { max-width: 1100px; margin: clamp(42px, 6vw, 80px) auto 0; text-align: center; animation: demo-message-in .45s ease both; }
.demo-comparison-kicker { margin: 0 0 13px; color: #ff4b16; font: 700 .68rem/1.3 var(--demo-mono); letter-spacing: .08em; text-transform: uppercase; }
.demo-comparison > h3 { max-width: 22ch; margin: 0 auto clamp(28px, 4vw, 48px); font-size: clamp(1.8rem, 3.6vw, 3.4rem); line-height: 1.02; letter-spacing: -.045em; }
.demo-comparison-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; border: 1px solid var(--line); background: var(--line); text-align: left; }
.demo-comparison-grid article { padding: clamp(22px, 3vw, 38px); background: #111; }
.demo-comparison-grid article.is-active { box-shadow: inset 3px 0 0 var(--demo-accent); }
.demo-comparison-grid h4 { margin: 0 0 20px; color: var(--muted); font-size: 1rem; }
.demo-comparison-grid article.is-active h4 { color: #ff4b16; }
.demo-comparison-grid ul { margin: 0; padding: 0; display: grid; gap: 12px; list-style: none; }
.demo-comparison-grid li { padding-left: 22px; position: relative; color: var(--muted); font-size: .9rem; line-height: 1.55; }
.demo-comparison-grid li::before { content: "–"; position: absolute; left: 0; color: var(--demo-dim); }
.demo-comparison-grid article.is-active li::before { content: "✓"; color: var(--demo-success); }
.demo-comparison-cta { margin-top: 34px; display: flex; justify-content: center; }

@keyframes demo-message-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes demo-activity-in { from { opacity: 0; transform: translateX(5px); } to { opacity: 1; transform: translateX(0); } }
@keyframes demo-pulse { 50% { opacity: .25; } }

@media (max-width: 1120px) {
  .demo-appbar,
  .demo-sidebar,
  .demo-activity,
  .demo-footer { display: none; }
  .demo-layout { min-height: 0; display: block; }
  .demo-conversation { min-height: 0; }
  .demo-transcript {
    max-height: none;
    overflow-y: visible;
    overscroll-behavior: auto;
  }
}

@media (max-width: 600px) {
  .demo-section-heading > p:last-child { margin-top: 18px; }
  .demo-app { width: calc(100% + 32px); margin-left: -16px; border-inline: 0; }
  .demo-notice { align-items: flex-start; flex-direction: column; gap: 3px; }
  .demo-transcript { padding: 22px 14px; }
  .demo-message { margin-bottom: 24px; }
  .demo-message.is-user { max-width: 90%; }
  .demo-composer { padding: 12px; }
  .demo-composer > div { grid-template-columns: 1fr; }
  .demo-composer button { min-height: 42px; margin: 0 6px 6px; }
  .demo-comparison-grid { grid-template-columns: 1fr; }
  .demo-comparison-grid article.is-active { box-shadow: inset 0 3px 0 var(--demo-accent); }
}

@media (prefers-reduced-motion: reduce) {
  .skills-demo *,
  .skills-demo *::before,
  .skills-demo *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}