:root {
    --primary: #4e73df;
    --primary-dark: #375a7f;
    --secondary: #858796;
    --success: #1cc88a;
    --info: #36b9cc;
    --warning: #f6c23e;
    --danger: #e74a3b;
    --light: #f8f9fc;
    --dark: #5a5c69;
    --sidebar-bg: #2e4057;
    --sidebar-hover: #3a506b;
    --sidebar-active: #4e73df;
    --bg: #f8f9fc;
    --card-bg: #ffffff;
    --text: #5a5c69;
    --text-light: #858796;
    --border: #e3e6f0;
    --shadow: 0 0.15rem 1.75rem 0 rgba(58, 59, 69, 0.15);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
}

/* Login */
#login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--sidebar-bg) 0%, var(--primary) 100%);
}

.login-container {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-logo i {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 10px;
}

.login-logo h1 {
    color: var(--sidebar-bg);
    font-size: 28px;
}

.login-logo p {
    color: var(--text-light);
    margin-bottom: 30px;
}

.login-form .form-group {
    margin-bottom: 20px;
    text-align: left;
}

.login-form label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--dark);
}

.login-form label i {
    color: var(--primary);
    margin-right: 6px;
}

.login-form input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    transition: border-color 0.2s;
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary);
}

.login-footer {
    margin-top: 20px;
    font-size: 13px;
    color: var(--text-light);
}

/* Layout Principal */
#main-screen {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    color: #fff;
    display: flex;
    flex-direction: column;
    transition: width 0.3s;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.sidebar.collapsed {
    width: 70px;
}

.sidebar.collapsed .sidebar-header span,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .sidebar-footer span {
    display: none;
}

.sidebar-header {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header i {
    font-size: 28px;
    color: var(--primary);
}

.sidebar-nav {
    flex: 1;
    padding: 15px 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: all 0.2s;
    gap: 12px;
    font-size: 14px;
}

.nav-item:hover {
    background: var(--sidebar-hover);
    color: #fff;
}

.nav-item.active {
    background: var(--sidebar-active);
    color: #fff;
    border-left: 4px solid #fff;
}

.nav-item i {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 10px 0;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    transition: margin-left 0.3s;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.sidebar.collapsed + .main-content {
    margin-left: 70px;
}

/* Top Bar */
.top-bar {
    background: var(--card-bg);
    padding: 15px 25px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 50;
}

.top-bar-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

#user-name {
    font-weight: 600;
    color: var(--text);
}

#user-name i {
    color: var(--primary);
    margin-right: 6px;
}

/* Content Wrapper */
.content-wrapper {
    padding: 25px;
    flex: 1;
}

/* Screens & Pages */
.screen {
    display: none;
}

.screen.active {
    display: block;
}

.page {
    display: none;
}

.page.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 16px;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-header h3 i {
    color: var(--primary);
}

.card-body {
    padding: 20px 24px;
}

/* Dashboard Cards */
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.stat-card {
    display: flex;
    align-items: center;
    padding: 20px;
    color: #fff;
    border-radius: 12px;
    gap: 15px;
}

.stat-card.blue { background: linear-gradient(135deg, #4e73df, #224abe); }
.stat-card.green { background: linear-gradient(135deg, #1cc88a, #13855c); }
.stat-card.orange { background: linear-gradient(135deg, #f6c23e, #dda20a); }
.stat-card.red { background: linear-gradient(135deg, #e74a3b, #be2617); }
.stat-card.purple { background: linear-gradient(135deg, #6f42c1, #4a2c81); }
.stat-card.teal { background: linear-gradient(135deg, #36b9cc, #258391); }

.stat-icon {
    width: 55px;
    height: 55px;
    border-radius: 12px;
    background: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.stat-info h3 {
    font-size: 24px;
    font-weight: 700;
}

.stat-info p {
    font-size: 13px;
    opacity: 0.9;
}

/* Dashboard Sections */
.dashboard-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--secondary);
    color: #fff;
}

.btn-success {
    background: var(--success);
    color: #fff;
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-warning {
    background: var(--warning);
    color: var(--dark);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-icon {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text);
    padding: 5px 10px;
}

/* Page Actions */
.page-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    gap: 15px;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 300px;
}

.search-box input {
    width: 100%;
    padding: 10px 15px 10px 40px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
}

.search-box i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

.filter-box select {
    padding: 10px 15px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    background: #fff;
}

/* Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    background: var(--light);
    font-weight: 600;
    color: var(--dark);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table tbody tr:hover {
    background: var(--light);
}

.data-table .actions {
    display: flex;
    gap: 5px;
}

.data-table .actions .btn {
    padding: 5px 10px;
    font-size: 12px;
}

/* Status Badges */
.badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
}

.badge-success {
    background: #d4edda;
    color: #155724;
}

.badge-warning {
    background: #fff3cd;
    color: #856404;
}

.badge-danger {
    background: #f8d7da;
    color: #721c24;
}

.badge-info {
    background: #d1ecf1;
    color: #0c5460;
}

.badge-secondary {
    background: #e2e3e5;
    color: #383d41;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 12px;
    width: 100%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow);
    animation: modalSlide 0.3s ease;
}

@keyframes modalSlide {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 18px;
    color: var(--dark);
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-light);
    line-height: 1;
}

.modal-close:hover {
    color: var(--danger);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 15px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Forms */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 13px;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

/* Items List (for OS/Venda) */
.items-list {
    margin-top: 15px;
}

.items-list-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 60px;
    gap: 10px;
    padding: 10px;
    background: var(--light);
    border-radius: 8px 8px 0 0;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
}

.items-list-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 60px;
    gap: 10px;
    padding: 10px;
    border-bottom: 1px solid var(--border);
    align-items: center;
}

.items-list-row input,
.items-list-row select {
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
}

.total-box {
    text-align: right;
    margin-top: 15px;
    padding: 15px;
    background: var(--light);
    border-radius: 8px;
}

.total-box h3 {
    color: var(--primary);
    font-size: 22px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--dark);
    color: #fff;
    padding: 15px 25px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow);
    z-index: 2000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.4s ease;
}

.toast.active {
    transform: translateY(0);
    opacity: 1;
}

.toast i {
    font-size: 20px;
}

/* Reports */
.report-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.report-card {
    padding: 30px;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s;
}

.report-card:hover {
    transform: translateY(-5px);
}

.report-card i {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 15px;
}

.report-card h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.report-card p {
    font-size: 13px;
    color: var(--text-light);
}

/* Print Styles */
@media print {
    .sidebar, .top-bar, .page-actions, .modal, .toast {
        display: none !important;
    }
    .main-content {
        margin-left: 0 !important;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 70px;
    }
    .sidebar .sidebar-header span,
    .sidebar .nav-item span,
    .sidebar .sidebar-footer span {
        display: none;
    }
    .main-content {
        margin-left: 70px;
    }
    .dashboard-sections {
        grid-template-columns: 1fr;
    }
    .dashboard-cards {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--dark);
}

/* Relatório */
.relatorio-impressao {
    font-family: 'Courier New', monospace;
}

.relatorio-impressao h2 {
    text-align: center;
    margin-bottom: 20px;
}

.relatorio-impressao .info-empresa {
    text-align: center;
    margin-bottom: 20px;
    font-size: 12px;
}

.relatorio-impressao table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
    font-size: 12px;
}

.relatorio-impressao th,
.relatorio-impressao td {
    border: 1px solid #333;
    padding: 6px;
    text-align: left;
}

.relatorio-impressao th {
    background: #eee;
}