:root {
  --vinho: #610021;
  --vinho-claro: #8a0731;
  --vinho-escuro: #40001a;
  --cinza-bg: #f4f2f3;
  --cinza-card: #ffffff;
  --cinza-borda: #e3dfe1;
  --texto: #2a2226;
  --texto-suave: #7a6f74;
  --erro: #c0392b;
  --ok: #237a4b;
  --alerta: #a96a00;
  --info: #315c9c;
  --radius: 8px;
  --sombra: 0 6px 24px rgba(97, 0, 33, 0.10);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Poppins', system-ui, sans-serif;
  background: var(--cinza-bg);
  color: var(--texto);
  min-height: 100vh;
}

h2 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0;
  color: var(--vinho);
}

hr { border: none; border-top: 1px solid var(--cinza-borda); margin: 22px 0; }

.brand { display: flex; flex-direction: column; line-height: 1; }
.brand-name {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 1.35rem;
  color: var(--vinho);
}
.brand-sub { font-size: .72rem; color: var(--texto-suave); margin-top: 4px; }

.btn {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  border: none;
  border-radius: 999px;
  padding: 11px 18px;
  cursor: pointer;
  font-size: .9rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
}
.btn:disabled { opacity: .6; cursor: wait; }
.btn-primary { background: var(--vinho); color: #fff; box-shadow: var(--sombra); }
.btn-primary:hover { background: var(--vinho-claro); }
.btn-ghost { background: #fff; color: var(--vinho); border: 1.5px solid var(--cinza-borda); }
.btn-ghost:hover { border-color: var(--vinho); background: rgba(97,0,33,.04); }
.btn-sm { min-height: 34px; padding: 8px 12px; font-size: .78rem; }

.login-screen {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 20px;
  background: radial-gradient(circle at 30% 20%, #fff, var(--cinza-bg));
}
.login-card {
  background: var(--cinza-card);
  border-radius: var(--radius);
  box-shadow: var(--sombra);
  padding: 40px 34px;
  width: 100%; max-width: 380px;
  text-align: center;
}
.login-card .brand { align-items: center; margin-bottom: 18px; }
.login-hint { color: var(--texto-suave); font-size: .9rem; margin-bottom: 18px; }
.login-card input {
  width: 100%; padding: 13px 16px;
  border: 1.5px solid var(--cinza-borda);
  border-radius: 10px; font-size: 1rem; margin-bottom: 14px;
  font-family: 'Poppins', sans-serif;
}
.login-card input:focus { outline: none; border-color: var(--vinho); }
.login-card .btn { width: 100%; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 28px;
  background: #fff;
  border-bottom: 1px solid var(--cinza-borda);
  position: sticky;
  top: 0;
  z-index: 5;
}
.topbar-actions { display: flex; align-items: center; gap: 14px; }
.batch-summary {
  color: var(--texto-suave);
  font-weight: 700;
  font-size: .86rem;
}

.batch-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 22px;
  padding: 24px;
  max-width: 1440px;
  margin: 0 auto;
  align-items: start;
}

.workspace, .side-panel, .tab-panel, .side-block, .lesson-card, .review-card {
  background: var(--cinza-card);
  border: 1px solid var(--cinza-borda);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px rgba(42, 34, 38, 0.04);
}

.workspace { overflow: hidden; }

.tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--cinza-borda);
  background: #faf9fa;
}
.tab {
  border: none;
  background: transparent;
  cursor: pointer;
  min-height: 52px;
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  color: var(--texto-suave);
  border-bottom: 3px solid transparent;
}
.tab.is-active {
  color: var(--vinho);
  border-bottom-color: var(--vinho);
  background: #fff;
}

.tab-panel {
  border: none;
  box-shadow: none;
  padding: 24px;
  border-radius: 0;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.section-actions, .actions-row, .card-actions, .selected-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.actions-row { justify-content: flex-end; margin-top: 20px; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.span-2 { grid-column: span 2; }

label {
  display: block;
  font-size: .8rem;
  font-weight: 700;
  color: var(--texto-suave);
}
input, select, textarea {
  width: 100%;
  margin-top: 6px;
  padding: 11px 13px;
  border: 1.5px solid var(--cinza-borda);
  border-radius: 8px;
  font-size: .94rem;
  font-family: 'Poppins', sans-serif;
  color: var(--texto);
  background: #fff;
}
textarea { resize: vertical; line-height: 1.45; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--vinho); }

.format-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.fmt {
  display: flex !important;
  align-items: center;
  gap: 8px;
  border: 1.5px solid var(--cinza-borda);
  border-radius: 8px;
  padding: 12px;
  cursor: pointer;
  color: var(--texto);
}
.fmt input { width: auto; margin: 0; }
.fmt:has(input:checked) { border-color: var(--vinho); background: rgba(97,0,33,.05); color: var(--vinho); }

.lessons-list {
  display: grid;
  gap: 14px;
}
.lesson-card { padding: 18px; }
.lesson-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.lesson-title {
  font-family: 'Montserrat', sans-serif;
  color: var(--vinho);
}
.icon-btn {
  border: 1px solid var(--cinza-borda);
  background: #fff;
  color: var(--texto-suave);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.3rem;
  line-height: 1;
}

.batch-matrix { overflow-x: auto; }
.matrix-grid {
  display: grid;
  gap: 8px;
  min-width: 720px;
}
.matrix-head {
  color: var(--texto-suave);
  font-weight: 900;
  padding: 8px;
  text-transform: uppercase;
  font-size: .78rem;
}
.matrix-row-title {
  min-height: 74px;
  padding: 12px;
  border: 1px solid var(--cinza-borda);
  border-radius: 8px;
  background: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}
.matrix-row-title span {
  color: var(--texto-suave);
  font-size: .78rem;
  line-height: 1.3;
}
.matrix-cell {
  min-height: 74px;
  border: 1.5px solid var(--cinza-borda);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
}
.matrix-cell small { color: var(--texto-suave); }
.matrix-cell.is-selected, .review-card.is-selected { outline: 2px solid var(--vinho); outline-offset: 2px; }

.side-panel {
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  display: grid;
  gap: 16px;
  position: sticky;
  top: 88px;
}
.side-block { padding: 18px; }
.side-block h2 { margin-bottom: 14px; }
.status-board { display: grid; gap: 8px; }
.status-row {
  display: grid;
  grid-template-columns: 12px 1fr auto;
  gap: 9px;
  align-items: center;
  min-height: 30px;
  font-size: .9rem;
}
.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cinza-borda);
}

.status-pending { color: var(--texto-suave); }
.status-generating { color: var(--info); }
.status-ready { color: var(--ok); }
.status-review { color: var(--alerta); }
.status-approved { color: var(--ok); }
.status-error { color: var(--erro); }
.status-dot.status-generating, .status-pill.status-generating { background: rgba(49,92,156,.12); color: var(--info); }
.status-dot.status-ready, .status-pill.status-ready { background: rgba(35,122,75,.12); color: var(--ok); }
.status-dot.status-review, .status-pill.status-review { background: rgba(169,106,0,.13); color: var(--alerta); }
.status-dot.status-approved, .status-pill.status-approved { background: rgba(35,122,75,.18); color: var(--ok); }
.status-dot.status-error, .status-pill.status-error { background: rgba(192,57,43,.12); color: var(--erro); }

.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}
.review-card {
  padding: 12px;
  cursor: pointer;
}
.review-preview {
  aspect-ratio: 4 / 3;
  background: #f8f7f8;
  border: 1px dashed var(--cinza-borda);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: var(--texto-suave);
  font-weight: 900;
}
.review-preview img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.review-meta {
  display: grid;
  gap: 8px;
  margin: 12px 0;
}
.status-pill {
  justify-self: start;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 900;
  background: #f0edef;
  color: var(--texto-suave);
}

.selected-piece { display: grid; gap: 12px; }
.selected-head { display: grid; gap: 8px; }
.selected-img {
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  border-radius: 8px;
  border: 1px solid var(--cinza-borda);
  background: #fff;
}
.selected-placeholder, .empty-state {
  border: 1px dashed var(--cinza-borda);
  background: #faf9fa;
  color: var(--texto-suave);
  border-radius: 8px;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 18px;
}
.download-link { width: 100%; }
.muted { color: var(--texto-suave); font-size: .9rem; }
.error-msg { color: var(--erro); font-size: .85rem; margin-top: 10px; }

.footer {
  text-align: center;
  padding: 18px;
  color: var(--texto-suave);
  font-size: .78rem;
}

@media (max-width: 1100px) {
  .batch-layout { grid-template-columns: 1fr; }
  .side-panel { position: static; }
}

@media (max-width: 720px) {
  .topbar { align-items: flex-start; gap: 14px; flex-direction: column; }
  .batch-layout { padding: 14px; }
  .tabs { grid-template-columns: repeat(2, 1fr); }
  .form-grid, .format-grid { grid-template-columns: 1fr; }
  .span-2 { grid-column: span 1; }
}

[hidden] {
  display: none !important;
}