:root {
  --brand-primary: #f79633;
  --brand-secondary: #666666;
  --page-bg: #f4f4f1;
  --card-bg: #ffffff;
  --text: #171717;
  --muted: #6f716f;
  --line: rgba(0, 0, 0, .08);
  --radius-lg: 28px;
  --radius-md: 18px;
  --shadow: 0 22px 70px rgba(19, 21, 20, .10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 9% -5%, color-mix(in srgb, var(--brand-primary) 20%, transparent), transparent 30rem),
    radial-gradient(circle at 94% 18%, color-mix(in srgb, var(--brand-secondary) 9%, transparent), transparent 28rem),
    var(--page-bg);
  -webkit-font-smoothing: antialiased;
}
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .42; transform: none !important; }
a { color: inherit; }

.page-shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 24px 0 30px; }
.topbar { min-height: 70px; display:flex; align-items:center; justify-content:space-between; gap:20px; }
.brand-line { display:flex; align-items:center; gap:12px; text-decoration:none; min-width:0; }
.brand-logo { width:50px; height:50px; object-fit:contain; border-radius:14px; background:rgba(255,255,255,.78); border:1px solid var(--line); box-shadow:0 8px 26px rgba(0,0,0,.06); }
.brand-copy { display:flex; flex-direction:column; align-items:flex-start; gap:3px; min-width:0; }
.campaign-tag { color:var(--brand-primary); font-weight:900; font-size:.73rem; letter-spacing:.08em; text-transform:uppercase; }
.brand-name { font-weight:780; font-size:.93rem; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:45vw; }
.text-button { border:0; background:transparent; color:var(--muted); font-weight:750; padding:10px 4px; }
.text-button:hover { color:var(--text); }

.hero { padding:62px 0 34px; max-width:970px; }
.eyebrow { margin:0 0 14px; color:var(--brand-primary); font-size:.78rem; letter-spacing:.12em; text-transform:uppercase; font-weight:900; }
h1 { margin:0; font-size:clamp(2.6rem, 7.5vw, 6.4rem); line-height:.91; letter-spacing:-.066em; max-width:1080px; text-wrap:balance; }
.hero-description { margin:26px 0 0; font-size:clamp(1.04rem, 2vw, 1.28rem); color:var(--muted); line-height:1.62; max-width:740px; }

.workspace { display:grid; grid-template-columns:minmax(0, 1.13fr) minmax(330px, .72fr); gap:28px; align-items:start; }
.preview-column { min-width:0; }
.preview-card, .controls-card { background:color-mix(in srgb, var(--card-bg) 96%, transparent); border:1px solid var(--line); box-shadow:var(--shadow); }
.preview-card { position:relative; overflow:hidden; padding:14px; border-radius:var(--radius-lg); touch-action:none; }
.preview-card::before { content:""; position:absolute; inset:0; pointer-events:none; background:linear-gradient(135deg, rgba(255,255,255,.18), transparent 45%); z-index:2; }
#editorCanvas { width:100%; display:block; border-radius:calc(var(--radius-lg) - 10px); background:#e8e8e5; aspect-ratio:1; cursor:grab; }
.preview-card.is-dragging #editorCanvas { cursor:grabbing; }
.preview-card[data-empty="true"] #editorCanvas { filter:saturate(.75); }
.empty-state { position:absolute; inset:14px; z-index:4; border:0; border-radius:calc(var(--radius-lg) - 10px); display:flex; flex-direction:column; align-items:center; justify-content:center; gap:9px; text-align:center; color:var(--muted); background:linear-gradient(145deg, rgba(255,255,255,.75), rgba(255,255,255,.34)); backdrop-filter:blur(5px); }
.empty-state strong { color:var(--text); font-size:1.1rem; }
.empty-state span:last-child { font-size:.86rem; }
.empty-icon { width:64px; height:64px; border-radius:50%; display:grid; place-items:center; font-size:2rem; background:var(--card-bg); box-shadow:0 12px 32px rgba(0,0,0,.10); color:var(--brand-primary); margin-bottom:4px; }
.drag-hint { position:absolute; z-index:5; left:50%; bottom:30px; transform:translateX(-50%); padding:9px 12px; border-radius:999px; background:rgba(18,18,18,.72); color:white; font-size:.76rem; font-weight:800; pointer-events:none; backdrop-filter:blur(8px); }
.preview-caption { margin:13px 6px 0; color:var(--muted); font-size:.78rem; line-height:1.5; }
.is-hidden { display:none !important; }

.controls-card { padding:26px; border-radius:var(--radius-lg); position:sticky; top:18px; }
.step-kicker { display:inline-flex; align-items:center; min-height:26px; padding:0 9px; border-radius:999px; background:color-mix(in srgb, var(--brand-primary) 13%, white); color:color-mix(in srgb, var(--brand-primary) 78%, black); font-size:.7rem; font-weight:900; letter-spacing:.08em; text-transform:uppercase; }
.controls-card h2 { margin:10px 0 8px; font-size:1.3rem; letter-spacing:-.025em; }
.controls-intro { margin:0 0 19px; color:var(--muted); line-height:1.52; font-size:.9rem; }
.upload-button, .primary-button, .secondary-button, .ghost-button, .utility-button, .icon-button, .cta-link { border:0; display:flex; align-items:center; justify-content:center; font-weight:850; transition:transform .18s ease, filter .18s ease, background .18s ease; }
.upload-button, .primary-button { width:100%; min-height:52px; border-radius:15px; background:var(--brand-primary); color:white; }
.upload-button:hover, .primary-button:hover:not(:disabled), .cta-link:hover { transform:translateY(-1px); filter:brightness(.97); }
.drop-zone { margin-top:10px; min-height:52px; border:1.5px dashed color-mix(in srgb, var(--brand-secondary) 28%, transparent); border-radius:15px; display:grid; place-items:center; color:var(--muted); font-size:.79rem; transition:.18s ease; outline:none; }
.drop-zone:hover, .drop-zone:focus-visible, .drop-zone.is-over { border-color:var(--brand-primary); background:color-mix(in srgb, var(--brand-primary) 7%, transparent); color:var(--text); }
.photo-controls { margin:22px 1px 4px; }
.control-row { display:flex; align-items:center; justify-content:space-between; gap:12px; }
.control-row label, .control-row output { font-size:.82rem; font-weight:850; }
.control-row output { color:var(--muted); font-variant-numeric:tabular-nums; }
.photo-controls input[type="range"] { width:100%; accent-color:var(--brand-primary); margin:11px 0 12px; }
.fine-controls { display:grid; grid-template-columns:44px 1fr 44px; gap:8px; }
.icon-button, .utility-button { min-height:42px; border-radius:12px; background:color-mix(in srgb, var(--brand-secondary) 10%, white); color:var(--text); }
.icon-button { font-size:1.2rem; }
.utility-button { font-size:.79rem; }
.divider { height:1px; background:var(--line); margin:23px 0; }
.primary-button { min-height:62px; flex-direction:column; gap:2px; margin-top:16px; }
.primary-button small { font-size:.68rem; opacity:.78; font-weight:700; }
.secondary-button, .ghost-button { width:100%; min-height:50px; border-radius:14px; margin-top:9px; }
.secondary-button { background:color-mix(in srgb, var(--brand-secondary) 12%, white); color:var(--text); }
.secondary-button:hover:not(:disabled) { background:color-mix(in srgb, var(--brand-secondary) 17%, white); }
.ghost-button { background:transparent; color:var(--muted); border:1px solid var(--line); }
.status-message { min-height:1.2em; margin:15px 2px 0; font-size:.78rem; line-height:1.4; color:var(--muted); }
.status-message[data-tone="success"] { color:#1d7042; }
.status-message[data-tone="error"] { color:#a32929; }
.privacy-note { margin:11px 2px 0; color:var(--muted); line-height:1.45; font-size:.73rem; }

.how-section { padding:106px 0 36px; }
.section-heading { max-width:720px; }
.section-heading h2 { margin:0; font-size:clamp(2rem, 4vw, 3.65rem); line-height:1; letter-spacing:-.05em; }
.how-it-works { margin-top:30px; display:grid; grid-template-columns:repeat(3, 1fr); gap:14px; }
.how-it-works article { min-height:210px; padding:24px; border:1px solid var(--line); border-radius:22px; background:rgba(255,255,255,.52); }
.how-it-works article > span { width:34px; height:34px; border-radius:11px; display:grid; place-items:center; background:var(--brand-primary); color:white; font-weight:950; }
.how-it-works h3 { margin:38px 0 7px; font-size:1.05rem; }
.how-it-works p { margin:0; color:var(--muted); line-height:1.52; font-size:.88rem; }

.campaign-cta { margin:54px 0 26px; padding:30px; border-radius:26px; display:flex; align-items:center; justify-content:space-between; gap:28px; background:var(--text); color:white; }
.campaign-cta .eyebrow { color:color-mix(in srgb, var(--brand-primary) 82%, white); }
.campaign-cta h2 { margin:0; font-size:clamp(1.6rem, 3vw, 2.35rem); letter-spacing:-.04em; }
.campaign-cta p:not(.eyebrow) { margin:8px 0 0; max-width:640px; color:rgba(255,255,255,.68); line-height:1.5; }
.cta-link { flex:none; min-height:48px; padding:0 18px; border-radius:14px; background:var(--brand-primary); color:white; text-decoration:none; }

footer { display:flex; justify-content:space-between; gap:20px; align-items:center; color:var(--muted); font-size:.72rem; padding:30px 2px 8px; }

@media (max-width: 900px) {
  .hero { padding-top:48px; }
  .workspace { grid-template-columns:1fr; }
  .controls-card { position:static; }
  .preview-column { max-width:760px; width:100%; margin:0 auto; }
}

@media (max-width: 720px) {
  .page-shell { width:min(100% - 22px, 1180px); padding-top:12px; }
  .topbar { min-height:60px; }
  .brand-logo { width:44px; height:44px; }
  .brand-name { max-width:46vw; }
  .text-button { display:none; }
  .hero { padding:40px 2px 27px; }
  h1 { font-size:clamp(2.5rem, 15vw, 4.7rem); letter-spacing:-.058em; }
  .hero-description { margin-top:20px; }
  .workspace { gap:16px; }
  .preview-card { padding:8px; border-radius:22px; }
  #editorCanvas, .empty-state { border-radius:16px; }
  .empty-state { inset:8px; }
  .controls-card { padding:21px; border-radius:22px; }
  .how-section { padding-top:78px; }
  .how-it-works { grid-template-columns:1fr; }
  .how-it-works article { min-height:0; }
  .how-it-works h3 { margin-top:26px; }
  .campaign-cta { align-items:flex-start; flex-direction:column; }
  .cta-link { width:100%; }
  footer { align-items:flex-start; flex-direction:column; gap:6px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior:auto !important; transition:none !important; }
}

/* Navegação compartilhada */
.header-actions { display:flex; align-items:center; justify-content:flex-end; gap:16px; }
.text-link { color:var(--muted); font-weight:760; text-decoration:none; font-size:.9rem; }
.text-link:hover { color:var(--text); }
.header-primary-link { min-height:42px; display:inline-flex; align-items:center; justify-content:center; padding:0 15px; border-radius:13px; background:var(--text); color:var(--card-bg); text-decoration:none; font-size:.82rem; font-weight:850; transition:transform .18s ease, filter .18s ease; }
.header-primary-link:hover { transform:translateY(-1px); filter:brightness(.92); }

/* Home */
.home-hero { padding:90px 0 76px; max-width:1040px; }
.home-hero h1 { max-width:1000px; }
.home-actions { display:flex; flex-wrap:wrap; gap:10px; margin-top:32px; }
.home-primary, .home-secondary { min-height:52px; display:inline-flex; align-items:center; justify-content:center; padding:0 20px; border-radius:15px; text-decoration:none; font-weight:850; }
.home-primary { background:var(--brand-primary); color:white; }
.home-secondary { background:rgba(255,255,255,.58); border:1px solid var(--line); }
.campaigns-section { padding:42px 0 58px; scroll-margin-top:24px; }
.section-heading-row { display:flex; align-items:flex-end; justify-content:space-between; gap:20px; max-width:none; }
.count-badge { flex:none; padding:8px 11px; border-radius:999px; border:1px solid var(--line); background:rgba(255,255,255,.5); color:var(--muted); font-size:.76rem; font-weight:800; }
.campaign-grid { margin-top:28px; display:grid; grid-template-columns:repeat(3, minmax(0, 1fr)); gap:16px; }
.campaign-card { overflow:hidden; border:1px solid var(--line); border-radius:24px; background:rgba(255,255,255,.68); box-shadow:0 16px 45px rgba(19,21,20,.07); }
.campaign-card-logo { height:150px; display:grid; place-items:center; padding:28px; background:linear-gradient(145deg, rgba(255,255,255,.8), rgba(255,255,255,.25)); border-bottom:1px solid var(--line); }
.campaign-card-logo img { width:82px; height:82px; object-fit:contain; }
.campaign-card-body { padding:22px; }
.campaign-card-tag { color:var(--campaign-accent, var(--brand-primary)); text-transform:uppercase; letter-spacing:.09em; font-size:.68rem; font-weight:900; }
.campaign-card h3 { margin:10px 0 8px; font-size:1.25rem; letter-spacing:-.025em; }
.campaign-card p { margin:0; color:var(--muted); line-height:1.5; font-size:.86rem; min-height:3.9em; }
.campaign-card-link { display:inline-flex; margin-top:18px; font-size:.84rem; font-weight:850; text-decoration:none; }
.empty-campaigns { grid-column:1/-1; padding:36px; border:1px dashed var(--line); border-radius:22px; display:flex; flex-direction:column; gap:5px; color:var(--muted); }
.empty-campaigns strong { color:var(--text); }
.home-explainer { margin:22px 0 46px; display:grid; grid-template-columns:repeat(3,1fr); border:1px solid var(--line); border-radius:24px; overflow:hidden; background:rgba(255,255,255,.48); }
.home-explainer article { padding:25px; display:flex; flex-direction:column; gap:7px; }
.home-explainer article + article { border-left:1px solid var(--line); }
.home-explainer strong { font-size:1rem; }
.home-explainer span { color:var(--muted); font-size:.83rem; line-height:1.45; }

/* Studio de criação */
.studio-hero { padding:64px 0 42px; max-width:920px; }
.studio-hero h1 { font-size:clamp(2.8rem, 7vw, 5.8rem); }
.studio-layout { display:grid; grid-template-columns:minmax(0, 1fr) minmax(300px, 390px); gap:24px; align-items:start; }
.studio-form-card, .studio-preview-card, .studio-action-card { border:1px solid var(--line); background:rgba(255,255,255,.72); box-shadow:var(--shadow); }
.studio-form-card { border-radius:28px; overflow:hidden; }
.form-section { padding:28px; }
.form-section + .form-section { border-top:1px solid var(--line); }
.form-section-title { display:flex; gap:13px; align-items:flex-start; margin-bottom:22px; }
.form-section-title > span { width:34px; height:34px; flex:none; display:grid; place-items:center; border-radius:11px; background:var(--brand-primary); color:white; font-size:.72rem; font-weight:900; }
.form-section-title h2 { margin:0; font-size:1.18rem; }
.form-section-title p { margin:4px 0 0; color:var(--muted); font-size:.8rem; }
.form-grid { display:grid; gap:15px; }
.form-grid.two-columns { grid-template-columns:repeat(2,minmax(0,1fr)); }
.form-grid .full { grid-column:1/-1; }
.field { display:flex; flex-direction:column; gap:7px; margin-top:15px; }
.form-grid > .field { margin-top:0; }
.field > span, .color-field > span { font-size:.77rem; font-weight:850; }
.field input, .field textarea { width:100%; border:1px solid var(--line); border-radius:12px; background:rgba(255,255,255,.78); color:var(--text); padding:12px 13px; outline:none; resize:vertical; }
.field input:focus, .field textarea:focus { border-color:color-mix(in srgb, var(--brand-primary) 60%, transparent); box-shadow:0 0 0 3px color-mix(in srgb, var(--brand-primary) 12%, transparent); }
.field small { color:var(--muted); font-size:.68rem; line-height:1.35; }
.file-field input { padding:9px; }
.color-grid { display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:10px; margin-top:18px; }
.color-field { min-width:0; display:flex; flex-direction:column; gap:7px; }
.color-field input { width:100%; height:42px; padding:3px; border:1px solid var(--line); border-radius:10px; background:white; }
.switch-row { margin-bottom:16px; }
.switch-label { display:flex; align-items:center; justify-content:space-between; gap:18px; border:1px solid var(--line); border-radius:13px; padding:12px 14px; font-size:.8rem; font-weight:800; }
.switch-label input { width:19px; height:19px; accent-color:var(--brand-primary); }
.is-disabled-group { opacity:.45; pointer-events:none; }
.studio-sidebar { position:sticky; top:18px; display:grid; gap:14px; }
.studio-preview-card, .studio-action-card { border-radius:24px; padding:22px; }
.brand-preview { --preview-primary:var(--brand-primary); display:flex; align-items:center; gap:12px; margin:16px 0 24px; }
.brand-preview img { width:54px; height:54px; object-fit:contain; border:1px solid var(--line); border-radius:14px; background:white; padding:5px; }
.brand-preview div { display:flex; flex-direction:column; gap:3px; min-width:0; }
.brand-preview span { color:var(--preview-primary); text-transform:uppercase; font-size:.67rem; font-weight:900; letter-spacing:.08em; }
.brand-preview strong { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-size:.84rem; }
.studio-preview-card h2 { margin:0; font-size:1.8rem; line-height:1.05; letter-spacing:-.04em; }
.studio-preview-card > p:last-child { color:var(--muted); line-height:1.5; font-size:.84rem; }
.studio-action-card h2 { margin:0; font-size:1.2rem; }
.studio-action-card > p { color:var(--muted); font-size:.78rem; line-height:1.5; }
.studio-action-card .secondary-button { margin-top:16px; }
.studio-action-card .primary-button { margin-top:9px; }

@media (max-width: 900px) {
  .campaign-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .studio-layout { grid-template-columns:1fr; }
  .studio-sidebar { position:static; grid-template-columns:repeat(2,minmax(0,1fr)); }
}

@media (max-width: 720px) {
  .header-actions { gap:8px; }
  .header-actions .text-link, .header-actions .text-button { display:none; }
  .header-primary-link { min-height:40px; padding:0 11px; font-size:.74rem; }
  .home-hero { padding:60px 2px 48px; }
  .campaign-grid { grid-template-columns:1fr; }
  .section-heading-row { align-items:flex-start; flex-direction:column; }
  .home-explainer { grid-template-columns:1fr; }
  .home-explainer article + article { border-left:0; border-top:1px solid var(--line); }
  .studio-hero { padding-top:46px; }
  .form-grid.two-columns, .color-grid, .studio-sidebar { grid-template-columns:1fr; }
  .color-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .form-section { padding:22px; }
}