/* ============================================
   LAYOUT PRINCIPAL
   ============================================ */

.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    background: var(--bg-light);
}

/* Páginas */
.page {
    display: none;
}

.page.active {
    display: block;
}

.page-container {
    max-width: 1400px;
    margin: 0 auto;
}

.page-header {
    margin-bottom: 16px;
}

.page-header h1 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
}

.page-header p {
    font-size: 11px;
    color: var(--text-muted);
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: var(--bg-sidebar);
    color: white;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
    z-index: 100;
}

.sidebar.collapsed {
    width: 70px;
}

.toggle-sidebar {
    position: absolute;
    right: -12px;
    top: 20px;
    width: 26px;
    height: 26px;
    background: var(--primary-green);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 101;
    font-size: 11px;
}

.toggle-sidebar:hover {
    transform: scale(1.1);
}

.logo {
    padding: 16px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo h2 {
    font-size: 18px;
    font-weight: 700;
}

.logo p {
    font-size: 9px;
    opacity: 0.7;
    margin-top: 4px;
}

/* Navegação */
.nav-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    flex: 1;
}

.nav-item {
    padding: 8px 12px;
    margin: 2px 8px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.nav-item:hover {
    background: rgba(46, 204, 113, 0.2);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-dark));
}

.nav-item .icon {
    font-size: 16px;
    width: 22px;
}

.sidebar.collapsed .nav-item span:last-child {
    display: none;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 8px;
}

/* Submenu */
.nav-item.has-submenu {
    position: relative;
    cursor: pointer;
}

.nav-item.has-submenu .submenu-arrow {
    margin-left: auto;
    font-size: 12px;
}

.submenu {
    display: none;
    margin-left: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius-md);
    margin-top: 4px;
    margin-bottom: 4px;
}

.submenu.open {
    display: block;
}

.submenu-item {
    padding: 6px 12px 6px 28px;
    margin: 2px 6px;
    font-size: 12px;
}

.submenu-item .icon {
    font-size: 12px;
    width: 18px;
}

.sidebar.collapsed .submenu {
    display: none;
}

/* Menu Inferior */
.nav-footer {
    margin-top: auto;
    padding: 12px 0 16px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-footer .nav-item {
    margin: 2px 8px;
    padding: 6px 12px;
    color: rgba(255, 255, 255, 0.7);
}

.nav-footer .nav-item:hover {
    background: rgba(46, 204, 113, 0.2);
    color: white;
}

.nav-footer .nav-item .icon {
    font-size: 14px;
    width: 20px;
}

.sidebar.collapsed .nav-footer .nav-item span:last-child {
    display: none;
}

.sidebar.collapsed .nav-footer .nav-item {
    justify-content: center;
    padding: 8px;
}

/* Grids */
.selecao-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.orcamento-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.parametros-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.resultados-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4px;
}

.config-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.form-grid-compact {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 12px;
}

/* Ações */
.actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 12px;
}

/* Full Width */
.full-width {
    width: 100%;
    margin-bottom: 12px;
}