/* ============================================
   TEMA DARK PREMIUM — VARIÁVEIS GLOBAIS
   ============================================ */
:root {
  --cor-bg-primario: #07091A;
  --cor-bg-secundario: #0D1230;
  --cor-bg-terciario: #151E40;
  --cor-bg-hover: #1C2650;
  --cor-texto-primario: #ECF0FF;
  --cor-texto-secundario: #6E7A9E;
  --cor-texto-mutado: #384268;
  --cor-destaque: #7C6EFA;
  --cor-destaque-hover: #9184FC;
  --cor-destaque-glow: rgba(124, 110, 250, 0.3);
  --cor-accent: #22D4C8;
  --cor-accent-dim: rgba(34, 212, 200, 0.1);
  --cor-sucesso: #1FD08A;
  --cor-sucesso-dim: rgba(31, 208, 138, 0.12);
  --cor-aviso: #F5C842;
  --cor-aviso-dim: rgba(245, 200, 66, 0.12);
  --cor-erro: #F87171;
  --cor-erro-dim: rgba(248, 113, 113, 0.12);
  --cor-borda: #1A2348;
  --cor-borda-leve: #111830;

  --grad-destaque: linear-gradient(135deg, #7C6EFA 0%, #A78BFA 100%);
  --grad-destaque-btn: linear-gradient(135deg, #6C5EEA 0%, #9184FC 100%);
  --grad-sidebar: linear-gradient(175deg, #090C20 0%, #0D1230 55%, #0A1228 100%);
  --grad-card: linear-gradient(150deg, #0E1535 0%, #121A42 100%);
  --grad-bg: radial-gradient(ellipse 80% 50% at 15% 0%, rgba(124, 110, 250, 0.07) 0%, transparent 60%),
             radial-gradient(ellipse 60% 40% at 85% 100%, rgba(34, 212, 200, 0.04) 0%, transparent 60%);

  --raio-pequeno: 6px;
  --raio-medio: 10px;
  --raio-grande: 16px;
  --raio-xl: 22px;

  --sombra-sm: 0 2px 6px rgba(0, 0, 0, 0.4);
  --sombra-md: 0 6px 20px rgba(0, 0, 0, 0.5);
  --sombra-lg: 0 16px 48px rgba(0, 0, 0, 0.65);
  --sombra-card: 0 4px 24px rgba(0, 0, 0, 0.35);
  --sombra-glow: 0 0 0 1px rgba(124, 110, 250, 0.3), 0 4px 32px rgba(124, 110, 250, 0.22);

  --transicao: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transicao-suave: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --largura-sidebar: 268px;
}

/* ============================================
   RESET E BASE
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--cor-bg-primario);
  color: var(--cor-texto-primario);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
  background-image: var(--grad-bg);
}

h1, h2, h3, h4 {
  color: var(--cor-texto-primario);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

h1 { font-size: 1.875rem; letter-spacing: -0.03em; }
h2 { font-size: 1.375rem; }
h3 { font-size: 1.1rem; font-weight: 600; }
h4 { font-size: 0.95rem; font-weight: 600; }

a { color: var(--cor-destaque); text-decoration: none; }

::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--cor-bg-terciario);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--cor-bg-hover); }

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
  width: var(--largura-sidebar);
  background: var(--grad-sidebar);
  border-right: 1px solid var(--cor-borda);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-destaque);
  z-index: 1;
}

.sidebar-header {
  padding: 30px 20px 22px;
  border-bottom: 1px solid var(--cor-borda-leve);
}

.sidebar-header h2 {
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #ECF0FF 0%, #A78BFA 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  background: var(--cor-bg-terciario);
  border-radius: 20px;
  font-size: 0.72rem;
  color: var(--cor-texto-secundario);
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 1px solid var(--cor-borda);
}

.badge-status.online {
  color: var(--cor-sucesso);
  background: var(--cor-sucesso-dim);
  border-color: rgba(31, 208, 138, 0.2);
}

.badge-status.offline {
  color: var(--cor-aviso);
  background: var(--cor-aviso-dim);
  border-color: rgba(245, 200, 66, 0.2);
}

.sidebar-nav {
  flex: 1;
  padding: 16px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  background: transparent;
  border: none;
  color: var(--cor-texto-secundario);
  font-size: 0.875rem;
  font-weight: 500;
  text-align: left;
  border-radius: var(--raio-medio);
  cursor: pointer;
  transition: var(--transicao);
  font-family: inherit;
  position: relative;
}

.nav-item:hover {
  background: rgba(124, 110, 250, 0.08);
  color: var(--cor-texto-primario);
}

.nav-item.active {
  background: rgba(124, 110, 250, 0.14);
  color: #C4BBFF;
  font-weight: 600;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  bottom: 7px;
  width: 3px;
  background: var(--grad-destaque);
  border-radius: 0 2px 2px 0;
}

.nav-icon {
  font-size: 1rem;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 14px;
  border-top: 1px solid var(--cor-borda-leve);
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
  margin-left: var(--largura-sidebar);
  flex: 1;
  padding: 36px 40px;
  min-height: 100vh;
  max-width: 100%;
}

.view-container {
  max-width: 1200px;
  margin: 0 auto;
}

.view-header {
  margin-bottom: 36px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.view-header h1 {
  margin-bottom: 6px;
}

.view-subtitulo {
  color: var(--cor-texto-secundario);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.6;
}

.view-header .obra-header-info {
  flex: 1;
  min-width: 0;
}

.obra-header-info p {
  color: var(--cor-texto-secundario);
  font-size: 0.875rem;
  margin-top: 5px;
  line-height: 1.5;
}

.obra-header-acoes {
  display: flex;
  gap: 8px;
  align-items: center;
}

.toggle-sidebar {
  display: none;
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 200;
  background: rgba(13, 18, 48, 0.9);
  border: 1px solid var(--cor-borda);
  color: var(--cor-texto-primario);
  width: 44px;
  height: 44px;
  border-radius: var(--raio-medio);
  cursor: pointer;
  font-size: 1.3rem;
  backdrop-filter: blur(12px);
}

/* ============================================
   ABAS
   ============================================ */
.abas {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--cor-borda);
  margin-bottom: 28px;
}

.aba {
  padding: 11px 20px;
  background: transparent;
  border: none;
  color: var(--cor-texto-secundario);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--transicao);
  font-family: inherit;
  letter-spacing: 0.01em;
}

.aba:hover {
  color: var(--cor-texto-primario);
  background: rgba(124, 110, 250, 0.05);
  border-radius: var(--raio-pequeno) var(--raio-pequeno) 0 0;
}

.aba.ativa {
  color: var(--cor-destaque);
  border-bottom-color: var(--cor-destaque);
  font-weight: 600;
}

.aba-conteudo {
  display: none;
}

.aba-conteudo.ativa {
  display: block;
  animation: fadeSlideIn 0.2s ease;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.secao-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============================================
   ESTADO VAZIO
   ============================================ */
.estado-vazio {
  text-align: center;
  padding: 96px 20px;
  color: var(--cor-texto-secundario);
}

.estado-vazio-icone {
  font-size: 3.5rem;
  margin-bottom: 20px;
  opacity: 0.3;
  display: block;
  filter: grayscale(0.5);
}

.estado-vazio h3 {
  margin-bottom: 10px;
  color: var(--cor-texto-primario);
  font-size: 1.05rem;
  font-weight: 600;
}

.estado-vazio p {
  font-size: 0.875rem;
  color: var(--cor-texto-secundario);
  line-height: 1.7;
  max-width: 320px;
  margin: 0 auto;
}