@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ================= VARIÁVEIS E TEMA ================= */
:root {
  /* Cores de Fundo (Dark Slate) */
  --bg-color: #0f172a;
  --surface-color: #1e293b;
  --sidebar-bg: rgba(15, 23, 42, 0.95);
  --card-bg: rgba(30, 41, 59, 0.6);
  
  /* Textos */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  
  /* Cores de Marca e Status */
  --primary-color: #F59E0B; /* Âmbar - Remete a Máquinas Pesadas */
  --primary-hover: #D97706;
  --accent-color: #10b981;  /* Sucesso/Verde */
  --danger-color: #ef4444;  /* Erro/Vermelho */
  --warning-color: #f59e0b; /* Aviso/Amarelo */
  --info-color: #3b82f6;    /* Info/Azul */
  
  /* Bordas e Efeitos */
  --border-color: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.25);
  --blur: blur(12px);
  --radius: 12px;
}

/* ================= RESET E BASE ================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  background-color: var(--bg-color);
  background-image: 
    radial-gradient(at 0% 0%, rgba(245, 158, 11, 0.08) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.05) 0px, transparent 50%);
  color: var(--text-primary);
  min-height: 100vh;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbar para Dark Mode */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-color); }
::-webkit-scrollbar-thumb { background: var(--surface-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* ================= TELA DE LOGIN ================= */
.auth-wrapper {
  position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
  background: var(--bg-color);
  display: flex; align-items: center; justify-content: center;
  z-index: 9999; padding: 20px;
}

.auth-card {
  background: var(--surface-color);
  padding: 40px; border-radius: var(--radius);
  box-shadow: var(--glass-shadow); border: 1px solid var(--border-color);
  width: 100%; max-width: 420px; text-align: center;
}

.auth-card h2 { margin-bottom: 24px; color: var(--text-primary); font-weight: 700; }
.auth-form { display: flex; flex-direction: column; gap: 16px; }
.auth-toggle { margin-top: 24px; font-size: 0.9rem; color: var(--text-secondary); cursor: pointer; transition: color 0.2s; }
.auth-toggle:hover { color: var(--primary-color); }

/* ================= LAYOUT PRINCIPAL ================= */
.app-container { display: flex; width: 100vw; height: 100vh; overflow: hidden; }

/* Sidebar */
.sidebar {
  width: 280px;
  background: var(--sidebar-bg);
  backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
  border-right: 1px solid var(--border-color);
  display: flex; flex-direction: column;
  transition: transform 0.3s ease;
  z-index: 100;
}

.brand {
  padding: 24px; font-size: 1.5rem; font-weight: 700;
  display: flex; align-items: center; gap: 12px;
  color: var(--primary-color);
  border-bottom: 1px solid var(--border-color);
}
.brand span { color: var(--text-primary); }

.nav-menu { padding: 20px 12px; display: flex; flex-direction: column; gap: 8px; flex: 1; overflow-y: auto; }

.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; border-radius: 8px;
  color: var(--text-secondary); text-decoration: none; font-weight: 500;
  transition: all 0.2s ease; cursor: pointer;
}
.nav-item i { font-size: 1.25rem; }
.nav-item:hover { background: rgba(255, 255, 255, 0.05); color: var(--text-primary); }
.nav-item.active {
  background: var(--primary-color); color: #fff; /* Texto branco para contraste no botão âmbar */
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

/* Main Content & Header */
.main-content { flex: 1; display: flex; flex-direction: column; height: 100vh; overflow: hidden; width: 100%; }

.header {
  height: 70px; min-height: 70px;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--border-color);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 32px; z-index: 90;
}
.page-title { font-size: 1.25rem; font-weight: 600; }

.content-area { flex: 1; padding: 32px; overflow-y: auto; }

/* Views */
.view-section { display: none; animation: fadeIn 0.4s ease forwards; }
.view-section.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ================= COMPONENTES & CARDS ================= */
.glass-card {
  background: var(--card-bg);
  backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border-color);
  border-radius: var(--radius); padding: 24px;
  box-shadow: var(--glass-shadow); margin-bottom: 24px;
}

.grid-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin-bottom: 32px; }

.stat-card { display: flex; align-items: center; gap: 20px; padding: 24px; margin-bottom: 0; }
.stat-icon {
  width: 56px; height: 56px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center; font-size: 1.8rem;
  background: rgba(255, 255, 255, 0.05); color: var(--primary-color);
}
.stat-info h3 { font-size: 0.85rem; color: var(--text-secondary); font-weight: 600; text-transform: uppercase; margin-bottom: 4px; }
.stat-info p { font-size: 1.8rem; font-weight: 700; color: var(--text-primary); }

/* ================= BOTÕES ================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: 8px; font-weight: 600; font-size: 0.9rem;
  cursor: pointer; transition: all 0.2s ease; border: none;
}
.btn-primary { background: var(--primary-color); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4); }

.btn-success { background: var(--accent-color); color: #fff; }
.btn-success:hover { filter: brightness(1.1); box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4); }

.top-bar-actions { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }

/* ================= FORMULÁRIOS & GRIDS AUXILIARES ================= */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 8px; font-size: 0.9rem; color: var(--text-secondary); font-weight: 500; }

.form-control {
  width: 100%; background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color); color: var(--text-primary);
  padding: 12px 16px; border-radius: 8px; font-size: 0.95rem; transition: all 0.2s;
}
.form-control:focus { outline: none; border-color: var(--primary-color); background: rgba(15, 23, 42, 0.9); }
.form-control::placeholder { color: var(--text-secondary); opacity: 0.7; }

/* Grids p/ Desktop e Mobile */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-checkbox { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 8px; }

.checkbox-label { display: flex; align-items: center; gap: 8px; color: var(--text-primary); font-size: 0.9rem; cursor: pointer; }
.checkbox-label input { width: 16px; height: 16px; accent-color: var(--primary-color); cursor: pointer; }

/* ================= TABELAS ================= */
.table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; white-space: nowrap; }
th, td { padding: 16px; text-align: left; border-bottom: 1px solid var(--border-color); }
th { color: var(--text-secondary); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; }
tr:hover td { background: rgba(255, 255, 255, 0.02); }

.td-actions { display: flex; gap: 8px; }
.td-actions .btn { padding: 6px 10px; font-size: 1rem; }

/* Badges de Status */
.badge { padding: 4px 8px; border-radius: 4px; font-size: 0.75rem; font-weight: 600; }
.badge-warning { background: rgba(245, 158, 11, 0.2); color: var(--warning-color); }
.badge-success { background: rgba(16, 185, 129, 0.2); color: var(--accent-color); }
.badge-danger { background: rgba(239, 68, 68, 0.2); color: var(--danger-color); }

/* ================= MODAIS ================= */
.modal-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.7); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
  padding: 20px;
}
.modal-overlay.active { opacity: 1; pointer-events: all; }

.modal-content {
  background: var(--surface-color); border: 1px solid var(--border-color);
  border-radius: var(--radius); width: 100%; max-width: 600px;
  max-height: 90vh; overflow-y: auto; transform: scale(0.95); transition: transform 0.3s ease;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}
.modal-overlay.active .modal-content { transform: scale(1); }

.modal-header { padding: 20px 24px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.modal-title { font-size: 1.15rem; font-weight: 600; }
.btn-close { background: transparent; border: none; color: var(--text-secondary); font-size: 1.5rem; cursor: pointer; }
.btn-close:hover { color: var(--text-primary); }

.modal-body { padding: 24px; }
.modal-footer { padding: 20px 24px; border-top: 1px solid var(--border-color); display: flex; justify-content: flex-end; gap: 12px; background: rgba(0,0,0,0.1); }

/* ================= RESPONSIVIDADE & MOBILE ================= */
.menu-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.5rem; cursor: pointer; }

/* Overlay Escuro para Menu Mobile */
.mobile-menu-overlay {
  position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
  background: rgba(0,0,0,0.6); z-index: 95; display: none; backdrop-filter: blur(2px);
}
.mobile-menu-overlay.active { display: block; }

@media (max-width: 768px) {
  .sidebar { position: fixed; transform: translateX(-100%); height: 100vh; }
  .sidebar.mobile-open { transform: translateX(0); }
  
  .main-content { width: 100%; }
  .header { padding: 0 16px; justify-content: flex-start; gap: 16px; }
  .menu-toggle { display: block !important; }
  .content-area { padding: 16px; }
  
  /* Ajustes de Grid para Celular */
  .grid-2, .grid-checkbox { grid-template-columns: 1fr; }
  .top-bar-actions { flex-direction: column; align-items: stretch; }
  .top-bar-actions .btn { width: 100%; }
  
  .stat-card { padding: 16px; }
}