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

:root {
  --fundo: #0d1117;
  --superficie: #111827;
  --superficie-2: #1a2233;
  --borda: #1f2937;
  --primaria: #7c3aed;
  --primaria-hover: #6d28d9;
  --primaria-glow: rgba(124, 58, 237, 0.2);
  --acento: #a78bfa;
  --acento-fraco: rgba(167, 139, 250, 0.08);
  --texto: #f3f4f6;
  --texto-fraco: #6b7280;
  --sucesso: #10b981;
  --sucesso-fraco: rgba(16, 185, 129, 0.1);
  --erro: #ef4444;
  --erro-fraco: rgba(239, 68, 68, 0.1);
  --sidebar-w: 220px;
}

html, body { height: 100%; }

body {
  font-family: 'Syne', sans-serif;
  background-color: var(--fundo);
  color: var(--texto);
  display: flex;
  min-height: 100vh;
}

/* ── SIDEBAR ── */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--superficie);
  border-right: 1px solid var(--borda);
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1rem;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.5rem;
  margin-bottom: 2.5rem;
}

.logo-text { font-size: 1.25rem; font-weight: 800; letter-spacing: -0.03em; }
.logo-text span { color: var(--acento); }

.logo-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  background: var(--primaria);
  color: #fff;
  padding: 2px 7px;
  border-radius: 100px;
}

.sidebar-nav { flex: 1; display: flex; flex-direction: column; gap: 4px; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0.625rem 0.75rem;
  border-radius: 8px;
  color: var(--texto-fraco);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  transition: background 0.15s, color 0.15s;
}
.nav-item:hover { background: var(--acento-fraco); color: var(--texto); }
.nav-item.ativo {
  background: var(--acento-fraco);
  color: var(--acento);
  border: 1px solid rgba(167, 139, 250, 0.15);
}

.btn-sair {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0.625rem 0.75rem;
  border-radius: 8px;
  background: none;
  border: none;
  color: var(--texto-fraco);
  font-family: 'Syne', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  width: 100%;
}
.btn-sair:hover { background: var(--erro-fraco); color: var(--erro); }

/* ── MAIN ── */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 2rem 2.5rem;
  animation: entrar 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes entrar {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── TOPBAR ── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  gap: 1rem;
}

.btn-voltar {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--texto-fraco);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  transition: color 0.15s;
  white-space: nowrap;
  width: 80px;
}
.btn-voltar:hover { color: var(--acento); }

.topbar-centro { flex: 1; text-align: center; }

.topbar-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--acento);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 3px;
}

.topbar-h1 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

/* ── FORM WRAPPER ── */
.form-wrapper {
  max-width: 720px;
  margin: 0 auto;
}

/* ── SEÇÃO ── */
.secao {
  background: var(--superficie);
  border: 1px solid var(--borda);
  border-radius: 12px;
  padding: 1.75rem;
  margin-bottom: 1rem;
  position: relative;
  overflow: hidden;
}

.secao::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(167, 139, 250, 0.2), transparent);
}

.secao-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.secao-numero {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--primaria);
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  padding: 4px 10px;
  border-radius: 100px;
  white-space: nowrap;
  margin-top: 2px;
}

.secao-titulo {
  font-size: 1rem;
  font-weight: 700;
  color: var(--texto);
  letter-spacing: -0.01em;
}

.secao-desc {
  font-size: 0.78rem;
  color: var(--texto-fraco);
  margin-top: 2px;
}

/* ── CAMPOS ── */
.campos-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.campo { display: flex; flex-direction: column; gap: 6px; }
.campo-full { grid-column: 1 / -1; }

.campo label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--texto-fraco);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.obrigatorio { color: var(--primaria); }

.campo-hint {
  font-size: 0.65rem;
  color: var(--texto-fraco);
  opacity: 0.6;
  text-transform: none;
  letter-spacing: 0;
}

input, select {
  width: 100%;
  background: var(--fundo);
  border: 1px solid var(--borda);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: var(--texto);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input::placeholder { color: var(--texto-fraco); opacity: 0.4; }

input:focus, select:focus {
  border-color: var(--primaria);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

select { cursor: pointer; }

/* ── PREVIEW PLANO ── */
.plano-preview {
  grid-column: 1 / -1;
  background: var(--fundo);
  border: 1px solid var(--borda);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  display: flex;
  gap: 2rem;
}

.plano-preview.hidden { display: none; }

.preview-linha { display: flex; flex-direction: column; gap: 3px; }

.preview-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--texto-fraco);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.preview-valor {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--acento);
}

/* ── FEEDBACK ── */
.msg-erro, .msg-sucesso {
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  margin-bottom: 1rem;
}

.msg-erro {
  background: var(--erro-fraco);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--erro);
}

.msg-sucesso {
  background: var(--sucesso-fraco);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--sucesso);
}

.msg-erro.hidden, .msg-sucesso.hidden { display: none; }

/* ── AÇÕES ── */
.acoes {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 0.5rem;
  padding-bottom: 3rem;
}

.btn-cancelar {
  padding: 0.75rem 1.5rem;
  background: transparent;
  border: 1px solid var(--borda);
  border-radius: 8px;
  color: var(--texto-fraco);
  font-family: 'Syne', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: border-color 0.15s, color 0.15s;
}
.btn-cancelar:hover { border-color: var(--texto-fraco); color: var(--texto); }

.btn-salvar {
  padding: 0.75rem 1.75rem;
  background: var(--primaria);
  border: none;
  border-radius: 8px;
  color: #fff;
  font-family: 'Syne', sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background 0.2s, box-shadow 0.2s;
}
.btn-salvar:hover:not(:disabled) {
  background: var(--primaria-hover);
  box-shadow: 0 0 20px var(--primaria-glow);
}
.btn-salvar:disabled { opacity: 0.6; cursor: not-allowed; }

.spinner-btn {
  display: none;
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: girar 0.7s linear infinite;
}

.btn-salvar.carregando .texto { display: none; }
.btn-salvar.carregando .spinner-btn { display: block; }

@keyframes girar { to { transform: rotate(360deg); } }

/* Responsivo */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 1.25rem; }
  .campos-grid { grid-template-columns: 1fr; }
  .campo-full { grid-column: 1; }
  .plano-preview { flex-direction: column; gap: 0.75rem; }
  .topbar { flex-wrap: wrap; }
  .topbar-centro { order: -1; flex: 100%; text-align: left; }
}