* { box-sizing: border-box; }
body { margin: 0; font-family: var(--mr-font); }
.mr-theme { min-height: 100vh; background: var(--mr-bg); color: var(--mr-text); }
[hidden] { display: none !important; }
a { color: var(--mr-accent-text); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: default; opacity: .55; }
:focus-visible { outline: 3px solid var(--mr-accent-text); outline-offset: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip-link { position: fixed; z-index: 1000; top: 8px; left: 8px; padding: 14px; background: var(--mr-surface-solid); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.agent-main { max-width: 1440px; padding: 48px 4.5% 64px; margin: auto; }
.agent-heading { display: flex; justify-content: space-between; align-items: start; gap: 28px; margin-bottom: 26px; }
.agent-eyebrow { display: block; font-size: 11px; letter-spacing: 1.8px; color: var(--mr-accent-text); font-weight: 700; }
h1 { margin: 14px 0 12px; font-size: clamp(30px, 3vw, 44px); letter-spacing: -1.6px; line-height: 1.13; }
h2 { font-size: 25px; letter-spacing: -.7px; margin: 0 0 10px; }
h3 { margin: 0 0 10px; font-size: 19px; }
p { color: var(--mr-text-2); line-height: 1.6; margin: 6px 0 16px; }
.agent-quota { border: 1px solid var(--mr-border); border-radius: 14px; padding: 15px 18px; font-size: 14px; min-width: 205px; background: var(--mr-surface); }
.agent-quota small { display: block; font-size: 11px; color: var(--mr-text-3); margin-top: 7px; }
.agent-notice { padding: 16px 20px; border-radius: 12px; border: 1px solid var(--mr-info-line); background: var(--mr-info-bg); font-size: 13px; color: var(--mr-text); }
.agent-steps { list-style: none; padding: 0; margin: 30px 0; display: flex; gap: 24px; border-bottom: 1px solid var(--mr-border); }
.agent-steps li { display: flex; gap: 10px; padding: 0 0 20px; align-items: center; color: var(--mr-text-3); font-size: 14px; border-bottom: 2px solid transparent; }
.agent-steps li[aria-current] { color: var(--mr-accent-text); border-color: var(--mr-accent-text); }
.agent-steps li span { border: 1px solid var(--mr-border-strong); display: grid; place-items: center; width: 27px; height: 27px; border-radius: 50%; font-size: 12px; }
.agent-card { min-width: 0; background: var(--mr-surface); border: 1px solid var(--mr-border); border-radius: 20px; padding: 28px; }
.section-heading { display: flex; align-items: start; justify-content: space-between; gap: 20px; margin-bottom: 24px; }
.agent-step-hint { font-size: 12px; color: var(--mr-text-3); white-space: nowrap; padding-top: 7px; }
.agent-brief-grid { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 48px; }
.agent-brand-block { border-right: 1px solid var(--mr-border); padding-right: 30px; }
.agent-logo-preview { aspect-ratio: 2.3; display: grid; place-items: center; border: 1px dashed var(--mr-border-strong); background: var(--mr-surface-2); border-radius: 12px; margin: 16px 0; color: var(--mr-text-3); font-size: 13px; }
.agent-logo-preview img { width: 90%; max-height: 90px; object-fit: contain; }
.agent-brief-fields { max-width: 690px; }
.field { display: flex; flex-direction: column; gap: 8px; margin: 0 0 20px; min-width: 0; }
.field label { font-size: 14px; font-weight: 600; }
.field input, .field textarea, .field select { width: 100%; min-width: 0; border: 1px solid var(--mr-field-border); border-radius: 10px; background: var(--mr-field-bg); color: var(--mr-text); padding: 12px; min-height: 46px; }
.field select option { background: var(--mr-surface-solid); color: var(--mr-text); }
.field textarea { resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: var(--mr-text-3); opacity: 1; }
.field-hint, .agent-muted, .agent-optional { color: var(--mr-text-3); font-size: 12px; line-height: 1.5; font-weight: 400; }
.agent-text-link { font-size: 13px; line-height: 1.6; }
.agent-actions { border-top: 1px solid var(--mr-border); padding-top: 24px; margin-top: 26px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.btn { min-height: 44px; white-space: normal; }
.agent-group-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px; }
.agent-group { margin: 0; border: 1px solid var(--mr-border); border-radius: 16px; padding: 22px; min-width: 0; }
.agent-group legend { padding: 0 8px; font-weight: 650; }
.agent-check { display: flex; align-items: start; gap: 10px; font-size: 13px; line-height: 1.6; margin-bottom: 13px; }
.agent-check input { margin: 4px 0 0; width: 17px; height: 17px; accent-color: var(--mr-accent-solid); flex: none; }
.agent-format-label { display: flex; justify-content: space-between; gap: 10px; width: 100%; }
.agent-format-label small { color: var(--mr-text-3); white-space: nowrap; font-size: 11px; }
.agent-group .group-all { border-bottom: 1px solid var(--mr-border); padding-bottom: 14px; margin-bottom: 17px; }
.agent-progress-list { list-style: none; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; padding: 0; }
.agent-progress-list li { padding: 16px; background: var(--mr-surface); border: 1px solid var(--mr-border); border-radius: 12px; display: flex; flex-direction: column; gap: 10px; font-size: 13px; }
progress { width: 100%; height: 8px; accent-color: var(--mr-accent-solid); }
.agent-concept-fieldset { border: 0; padding: 0; margin: 0; }
.agent-concept-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.agent-concept { border: 1px solid var(--mr-border); border-radius: 18px; padding: 12px; background: var(--mr-surface); display: flex; flex-direction: column; cursor: pointer; }
.agent-concept:has(input:checked) { border-color: var(--mr-accent-text); box-shadow: 0 0 0 2px var(--mr-accent-text); }
.agent-concept-art { min-height: 200px; border-radius: 10px; padding: 26px; display: flex; flex-direction: column; justify-content: center; font: 32px/1.08 Georgia,serif; white-space: pre-line; }
.agent-concept-art small { font: 10px Arial,sans-serif; letter-spacing: 2px; margin-bottom: 16px; }
.agent-concept-copy { padding: 20px 10px 10px; }
.agent-concept-copy p { font-size: 13px; }
.agent-workspace { min-width: 0; display: grid; grid-template-columns: minmax(0,1fr) 325px; gap: 24px; align-items: start; }
.agent-piece-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 18px; align-items: start; }
.agent-piece { min-width: 0; background: var(--mr-surface); border: 1px solid var(--mr-border); border-radius: 14px; padding: 14px; }
.agent-piece[data-selected="true"] { border-color: var(--mr-accent-text); box-shadow: 0 0 0 1px var(--mr-accent-text); }
.agent-piece h3 { font-size: 14px; margin: 0 0 7px; }
.agent-piece p { font-size: 11px; margin-bottom: 10px; }
.agent-preview { display: flex; align-items: center; justify-content: center; background: var(--mr-surface-2); border-radius: 8px; padding: 14px 0; min-height: 85px; margin: 12px 0; overflow: hidden; }
.agent-preview-size { position: relative; flex: none; overflow: hidden; }
.agent-preview iframe { position: absolute; left: 0; top: 0; border: 0; transform-origin: top left; }
.agent-piece button { width: 100%; }
.agent-editor { padding: 22px; position: sticky; top: 20px; }
.agent-editor-heading { margin-bottom: 20px; }
.agent-editor-heading h3 { margin-top: 10px; }
.agent-editor button { width: 100%; }
.agent-editor-tools { display: flex; gap: 8px; margin: 14px 0 20px; }
.agent-editor-tools button { font-size: 12px; padding: 10px; }
.agent-editor details { margin: 16px 0; border-top: 1px solid var(--mr-border); padding-top: 16px; }
.agent-editor summary { cursor: pointer; font-size: 13px; margin-bottom: 14px; min-height: 32px; }
.agent-approval { margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--mr-border); }
.agent-approval p { font-size: 12px; }
.agent-approval a { margin-top: 14px; width: 100%; }
.agent-footer { text-align: center; padding: 25px; border-top: 1px solid var(--mr-border); font-size: 12px; color: var(--mr-text-3); }
#download-options a { display: block; padding: 12px 0; font-size: 13px; }
.agent-viewer,.agent-confirm{border:1px solid var(--mr-border-strong);border-radius:20px;background:var(--mr-surface-solid);color:var(--mr-text);padding:0;box-shadow:0 24px 80px #0008}.agent-viewer{width:min(1440px,96vw);height:min(900px,94dvh);max-width:none;max-height:none;overflow:auto}.agent-viewer::backdrop,.agent-confirm::backdrop{background:#080b12c9;backdrop-filter:blur(4px)}.viewer-shell{min-height:100%;padding:24px}.viewer-header{display:flex;align-items:start;justify-content:space-between;gap:20px;border-bottom:1px solid var(--mr-border);padding-bottom:14px}.viewer-header h2{margin:7px 0}.viewer-header p{margin:0}.viewer-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,360px);gap:20px;padding-top:18px}.viewer-canvas{min-width:0}.viewer-toolbar,.viewer-navigation{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap}.viewer-toolbar output{min-width:50px;text-align:center;font-variant-numeric:tabular-nums}.viewer-stage{height:min(62dvh,630px);min-height:280px;position:relative;overflow:hidden;background:repeating-conic-gradient(var(--mr-surface-2) 0% 25%,var(--mr-surface) 0% 50%) 50%/24px 24px;border:1px solid var(--mr-border);border-radius:12px;margin:12px 0;touch-action:none;cursor:grab}.viewer-stage:active{cursor:grabbing}.viewer-stage>iframe,.viewer-stage>img,.viewer-stage>video,.viewer-stage>.agent-preview-size{max-width:none;max-height:none}.viewer-stage>iframe{border:0}.viewer-navigation{justify-content:space-between}.viewer-thumbnails{display:flex;overflow:auto;gap:8px;flex:1;justify-content:center}.viewer-thumbnails button{flex:none}.viewer-thumbnails button[aria-current="true"]{outline:2px solid var(--mr-accent-text)}.viewer-details{min-width:0;max-height:calc(94dvh - 110px);overflow:auto;border-left:1px solid var(--mr-border);padding-left:20px}.viewer-details h3{margin:0 0 12px}.viewer-details section+section{border-top:1px solid var(--mr-border);margin-top:20px;padding-top:18px}.viewer-details dl{display:grid;grid-template-columns:1fr auto;gap:8px 16px;font-size:13px}.viewer-details dt{color:var(--mr-text-3)}.viewer-details dd{margin:0;text-align:right}.viewer-details #viewer-editor-host{min-width:0}.viewer-details #viewer-demo-editor{display:grid;gap:12px}.viewer-details #viewer-demo-editor textarea{width:100%;box-sizing:border-box;min-height:90px;padding:12px;border:1px solid var(--mr-field-border);border-radius:10px;background:var(--mr-field-bg);color:var(--mr-text);font:inherit}.viewer-suggestions{display:flex;gap:6px;flex-wrap:wrap}.viewer-suggestions button{min-height:40px;border:1px solid var(--mr-border);border-radius:999px;padding:6px 10px;background:var(--mr-surface);color:var(--mr-text);font-size:12px}.viewer-before-after{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}.viewer-before-after section{min-width:0!important;border:0!important;margin:0!important;padding:0!important}.viewer-before-after h4{margin:0 0 8px}.viewer-before-after img,.viewer-before-after video,.viewer-before-after iframe{max-width:100%;max-height:180px;object-fit:contain}.viewer-before-after button{grid-column:span 1}.viewer-before-after button:last-child{grid-column:span 2}.agent-confirm{width:min(480px,calc(100vw - 32px));max-width:none;padding:26px}.agent-confirm form{display:grid;gap:10px}.agent-confirm .agent-actions{margin-top:8px}.agent-confirm a{font-size:14px}
@media (max-width: 1050px) { .agent-workspace { grid-template-columns: minmax(0,1fr) 300px; } .agent-piece-grid { grid-template-columns: repeat(auto-fit,minmax(190px,1fr)); } .agent-brief-grid { gap: 28px; } }
@media (max-width: 760px) {
      .agent-main { padding: 28px 20px 130px; }
  .agent-heading { flex-direction: column; gap: 12px; }
  .agent-quota { width: 100%; }
  .agent-card { padding: 20px; border-radius: 16px; }
  .agent-steps { gap: 0; justify-content: space-between; }
  .agent-steps li { flex-direction: column; gap: 8px; font-size: 11px; padding: 0 4px 14px; }
  .agent-brief-grid, .agent-group-grid, .agent-concept-grid, .agent-workspace, .agent-progress-list { grid-template-columns: 1fr; }
  .agent-workspace > * { min-width: 0; }
  .agent-workspace h3, .agent-workspace p, .agent-workspace li { overflow-wrap: anywhere; }
  .agent-brand-block { border: 0; border-bottom: 1px solid var(--mr-border); padding: 0 0 24px; }
  .agent-actions { flex-wrap: wrap; }
  .agent-actions .btn { width: 100%; }
  .agent-editor { position: static; }
  .agent-piece-grid { grid-template-columns: minmax(0,1fr); }
  .agent-format-label { flex-direction: column; gap: 0; }
  h2 { font-size: 23px; }
  .section-heading { gap: 10px; }
  .agent-viewer{width:100vw;height:100dvh;max-height:100dvh;border:0;border-radius:0}.viewer-shell{padding:14px}.viewer-layout{grid-template-columns:1fr;gap:14px}.viewer-stage{height:44dvh;min-height:220px}.viewer-details{max-height:none;border-left:0;border-top:1px solid var(--mr-border);padding:16px 0 0}.viewer-header{align-items:center}.viewer-header h2{font-size:20px}.viewer-header .btn{min-width:72px}
}

.agent-preview img{display:block;max-width:100%;height:auto;object-fit:contain}.agent-preview-size:has(img){max-width:100%;width:auto}.agent-piece img{max-height:280px}

/* Arquivos finais mantêm proporção e controles visíveis, inclusive no celular. */
.agent-output { margin: 0; max-width: 100%; }
.agent-output video { display: block; width: 100%; max-height: 520px; background: #000; object-fit: contain; }
.agent-output figcaption { font-size: 12px; line-height: 1.5; margin-top: 10px; overflow-wrap: anywhere; }
.agent-output p { margin-top: 8px; }
.agent-preview-size:has(.agent-output) { width: 100%; max-width: 100%; }
.agent-format-label { flex-wrap: wrap; }
.agent-format-label .agent-format-reason { flex-basis: 100%; white-space: normal; }
.agent-check:has(input:disabled) { color: var(--mr-text-3); }
.agent-campaign-context { display: grid; gap: 4px; margin-block: 12px; padding: 14px 16px; border: 1px solid var(--agent-border, #334155); border-radius: 14px; background: var(--agent-panel, #111827); }
.agent-campaign-context p { margin: 0; color: var(--agent-muted, #cbd5e1); }

/* Resumo do briefing salvo (acima das etapas) e voltar ao Estúdio. */
.agent-brief-summary { margin-bottom: 20px; }
.agent-brief-summary .section-heading { margin-bottom: 0; }
.agent-summary-list { display: grid; gap: 8px; margin: 10px 0 0; }
.agent-summary-list div { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 10px; }
.agent-summary-list dt { color: var(--mr-text-3); font-size: 13px; }
.agent-summary-list dd { margin: 0; color: var(--mr-text); overflow-wrap: anywhere; }
.agent-heading .studio-back { margin-bottom: 8px; }
.agent-summary-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-start; }
@media (max-width: 760px) { .agent-brief-summary .section-heading { flex-direction: column; } .agent-summary-actions { width: 100%; } .agent-summary-actions .btn { flex: 1 1 auto; } .agent-summary-list div { grid-template-columns: 1fr; gap: 2px; } }