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

:root {
  --ink:        #0d1117;
  --ink-soft:   #4a5568;
  --ink-muted:  #8b95a1;
  --paper:      #f7f5f0;
  --paper-card: #ffffff;
  --border:     #e2ddd5;
  --navy:       #0f2d5e;
  --navy-light: #1a4a8a;
  --amber:      #92400e;
  --amber-bg:   #fef3c7;
  --amber-border:#f6d860;
  --green:      #14532d;
  --green-bg:   #dcfce7;
  --green-border:#86efac;
  --blue:       #1d4ed8;
  --blue-bg:    #dbeafe;
  --red:        #991b1b;
  --red-bg:     #fee2e2;
  --orange:     #c2410c;
  --orange-bg:  #ffedd5;
  --radius-sm:  6px;
  --radius:     12px;
  --radius-lg:  16px;
  --shadow:     0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.05);
  --shadow-lg:  0 2px 8px rgba(0,0,0,.08), 0 12px 32px rgba(0,0,0,.08);
}

body {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  background: var(--paper);
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23000000' fill-opacity='0.018'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

/* ── HEADER ── */
header {
  background: var(--navy);
  padding: 0 32px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 0;
  position: relative;
  overflow: hidden;
}
header::before {
  content: '';
  position: absolute;
  left: 0; top: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.04) 0%, transparent 60%);
  pointer-events: none;
}
.header-inner {
  display: flex;
  align-items: baseline;
  gap: 14px;
  width: 100%;
  max-width: 700px;
  margin: 0 auto;
}
.logo-inss {
  font-family: 'Inter', sans-serif;
  font-size: 17px;
  font-weight: 600;
  color: #ffffff;
  letter-spacing: -.01em;
}
.logo-badge {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 600;
  background: rgba(255,255,255,.1);
  color: rgba(255,255,255,.65);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 4px;
  padding: 3px 8px;
  letter-spacing: .06em;
  text-transform: uppercase;
  align-self: center;
}

/* ── MAIN ── */
main {
  flex: 1;
  max-width: 700px;
  margin: 32px auto;
  padding: 0 16px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ── AVISO LGPD ── */
.aviso-lgpd {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--blue-bg);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-sm);
  padding: 11px 16px;
  font-size: 13px;
  color: #1e3a8a;
  font-weight: 500;
  line-height: 1.5;
}
.aviso-lgpd svg { flex-shrink: 0; }

/* ── UPLOAD ── */
.zona-upload {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  background: var(--paper-card);
  padding: 52px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s, transform .15s;
  color: var(--ink-muted);
  box-shadow: var(--shadow);
}
.zona-upload:hover,
.zona-upload.drag-over {
  border-color: var(--navy-light);
  background: #f0f5ff;
  color: var(--navy);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}
.zona-upload:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
  border-color: var(--navy-light);
  background: #f0f5ff;
}
.zona-upload svg { opacity: .35; margin-bottom: 16px; transition: opacity .2s, transform .2s; }
.zona-upload:hover svg { opacity: .6; transform: translateY(-3px); }
.upload-titulo {
  font-family: 'Inter', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
  letter-spacing: -.02em;
}
.upload-sub { font-size: 13px; line-height: 1.6; color: var(--ink-soft); }
.upload-sub strong { color: var(--navy-light); font-weight: 600; }
#input-arquivo { display: none; }

/* ── LISTA DE ARQUIVOS ── */
#lista-arquivos {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ── ARQUIVO CARD ── */
.arquivo-item {
  background: var(--paper-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow .2s;
}
.arquivo-item:hover { box-shadow: var(--shadow-lg); }

.arquivo-cabecalho {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px 10px;
  border-bottom: 1px solid var(--border);
  background: #fafafa;
}
.arquivo-icone { font-size: 18px; flex-shrink: 0; }
.arquivo-nome {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  flex: 1;
  word-break: break-all;
  color: var(--ink);
  letter-spacing: -.01em;
}
.arquivo-status {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  white-space: normal;
  text-align: center;
  max-width: 280px;
  line-height: 1.35;
  letter-spacing: .03em;
  text-transform: uppercase;
}
.status-aguardando  { background: #f1f5f9; color: #64748b; border: 1px solid #cbd5e1; }
.status-processando { background: var(--blue-bg); color: var(--blue); border: 1px solid #bfdbfe; }
.status-ok          { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border); }
.status-erro        { background: var(--red-bg); color: var(--red); border: 1px solid #fca5a5; }
.status-aviso       { background: var(--orange-bg); color: var(--orange); border: 1px solid #fdba74; }

/* Barra de progresso */
.progresso-wrap {
  height: 3px;
  background: #f1f5f9;
}
.progresso-barra {
  height: 100%;
  background: linear-gradient(90deg, var(--navy-light), #60a5fa);
  transition: width .4s cubic-bezier(.4,0,.2,1);
  width: 0%;
}
.progresso-barra.completo { background: linear-gradient(90deg, #16a34a, #4ade80); width: 100%; }
.progresso-barra.erro     { background: var(--red); width: 100%; }

/* ── TABELA DE SUBSTITUIÇÕES ── */
.subs-tabela {
  padding: 12px 16px 14px;
}
.subs-header {
  display: grid;
  grid-template-columns: 72px 1fr 20px 1fr;
  gap: 6px 8px;
  margin-bottom: 6px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.subs-header span {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ink-muted);
}
.subs-header .col-original { color: var(--amber); }
.subs-header .col-novo     { color: var(--green); }

.sub-linha {
  display: grid;
  grid-template-columns: 72px 1fr 20px 1fr;
  gap: 4px 8px;
  align-items: center;
  padding: 5px 0;
  border-bottom: 1px solid #f8f6f2;
}
.sub-linha:last-child { border-bottom: none; }

.sub-label {
  font-family: 'Inter', sans-serif;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--ink-muted);
}

.sub-original {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  color: var(--amber);
  background: var(--amber-bg);
  border: 1px solid var(--amber-border);
  border-radius: var(--radius-sm);
  padding: 3px 7px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-decoration: line-through;
  text-decoration-color: rgba(146, 64, 14, .4);
  text-decoration-thickness: 1.5px;
}

.sub-seta {
  text-align: center;
  color: var(--ink-muted);
  font-size: 13px;
  font-weight: 300;
}

.sub-novo {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  color: var(--green);
  background: var(--green-bg);
  border: 1px solid var(--green-border);
  border-radius: var(--radius-sm);
  padding: 3px 7px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
}

/* Placeholder enquanto processa */
.arquivo-subs:empty::after {
  display: block;
  content: '';
  height: 4px;
}

/* ── AÇÕES GLOBAIS ── */
#acoes-globais {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 4px;
}
.btn {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .01em;
  padding: 12px 24px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background .15s, transform .1s, box-shadow .15s, opacity .15s;
}
.btn:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .35; cursor: default; }
.btn-primario  {
  background: var(--navy);
  color: #fff;
  box-shadow: 0 2px 8px rgba(15,45,94,.25);
  font-size: 14px;
}
.btn-primario:hover:not(:disabled)  { background: var(--navy-light); box-shadow: 0 6px 20px rgba(15,45,94,.3); }
.btn-secundario {
  background: transparent;
  color: var(--ink-muted);
  border: 1px solid var(--border);
  font-size: 13px;
}
.btn-secundario:hover:not(:disabled) { background: #f1f5f9; color: var(--ink-soft); }
.btn-grande { font-size: 14px; padding: 13px 28px; }

/* ── FOOTER ── */
footer {
  text-align: center;
  padding: 16px;
  font-size: 12px;
  color: var(--ink-muted);
  border-top: 1px solid var(--border);
  letter-spacing: .01em;
}

.oculto { display: none !important; }

/* ── ANIMAÇÕES ── */
.arquivo-item {
  animation: slideIn .25s ease both;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.sub-linha {
  animation: fadeIn .2s ease both;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}