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

html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
}

/* Login Page */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.login-box h1 {
    text-align: center;
    color: #667eea;
    margin-bottom: 10px;
}

.login-box h2 {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
    font-weight: 300;
}

/* Navbar */
.navbar {
    background-color: #2c3e50;
    color: white;
    padding: 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.nav-logo {
    font-size: 24px;
    font-weight: bold;
    color: white;
    text-decoration: none;
    padding: 15px 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 20px;
    align-items: center;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    padding: 15px 10px;
    display: block;
    transition: background-color 0.3s;
}

.nav-menu a:hover {
    background-color: #34495e;
}

.nav-user {
    display: flex;
    gap: 15px;
    align-items: center;
}

.nav-user span {
    color: #ecf0f1;
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-header h1 {
    color: #2c3e50;
}

/* Cards */
.card {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.card h2, .card h3 {
    color: #2c3e50;
    margin-bottom: 20px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-card h3 {
    color: #7f8c8d;
    font-size: 14px;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.stat-number {
    font-size: 32px;
    font-weight: bold;
    color: #2c3e50;
}

.stat-card.alert-warning .stat-number {
    color: #e74c3c;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.table thead {
    background-color: #34495e;
    color: white;
}

.table th,
.table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.table tbody tr:hover {
    background-color: #f8f9fa;
}

.text-center {
    text-align: center;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #2c3e50;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 30px;
}

.search-form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.search-form input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    font-size: 14px;
    transition: background-color 0.3s;
}

.btn-primary {
    background-color: #667eea;
    color: white;
}

.btn-primary:hover {
    background-color: #5568d3;
}

.btn-secondary {
    background-color: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

.btn-info {
    background-color: #3498db;
    color: white;
}

.btn-info:hover {
    background-color: #2980b9;
}

.btn-danger {
    background-color: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

.btn-link {
    background: none;
    color: #667eea;
    padding: 10px;
}

.btn-link:hover {
    text-decoration: underline;
}

.btn-block {
    width: 100%;
    text-align: center;
}

/* Alerts */
.alert {
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.alert-error {
    background-color: #fee;
    color: #c33;
    border: 1px solid #fcc;
}

.alert-success {
    background-color: #efe;
    color: #3c3;
    border: 1px solid #cfc;
}

.alert-info {
    background-color: #eef;
    color: #33c;
    border: 1px solid #ccf;
}

/* Badges */
.badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
}

.badge-success {
    background-color: #2ecc71;
    color: white;
}

.badge-warning {
    background-color: #f39c12;
    color: white;
}

.badge-danger {
    background-color: #e74c3c;
    color: white;
}

/* Row/Col */
.row {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.col-md-4 {
    flex: 0 0 calc(33.333% - 20px);
}

.col-md-6 {
    flex: 0 0 calc(50% - 20px);
}

.col-md-8 {
    flex: 0 0 calc(66.666% - 20px);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 10px;
}

/* Responsive Design - Mobile First */
@media (max-width: 768px) {
    /* Navbar Mobile */
    .nav-container {
        flex-wrap: wrap;
        padding: 10px 15px;
    }
    
    .nav-logo {
        font-size: 20px;
        padding: 10px 0;
    }
    
    .menu-toggle {
        display: block;
        order: 2;
    }
    
    .nav-menu {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
        order: 3;
        padding-top: 10px;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        width: 100%;
        border-top: 1px solid rgba(255,255,255,0.1);
    }
    
    .nav-menu a {
        padding: 12px 15px;
        width: 100%;
    }
    
    .nav-user {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
        width: 100%;
        padding: 10px 15px;
        border-top: 1px solid rgba(255,255,255,0.1);
    }
    
    /* Main Content */
    .main-content {
        padding: 15px 10px;
    }
    
    .container {
        padding: 0 10px;
    }
    
    /* Page Header */
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        margin-bottom: 20px;
    }
    
    .page-header h1 {
        font-size: 24px;
        margin: 0;
    }
    
    .page-header > div {
        width: 100%;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    
    .page-header .btn {
        width: 100%;
        text-align: center;
    }
    
    /* Cards */
    .card {
        padding: 15px;
        margin-bottom: 15px;
    }
    
    .card h2, .card h3 {
        font-size: 18px;
        margin-bottom: 15px;
    }
    
    /* Stats Grid */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .stat-card {
        padding: 20px 15px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    /* Tables - Mobile Scroll */
    .table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 15px -15px;
        padding: 0 15px;
    }
    
    .table {
        min-width: 600px;
        font-size: 13px;
    }
    
    .table th,
    .table td {
        padding: 8px 6px;
        font-size: 12px;
    }
    
    /* Forms */
    .form-group {
        margin-bottom: 15px;
    }
    
    .form-group label {
        font-size: 14px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 12px;
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .form-actions {
        flex-direction: column;
        gap: 10px;
        margin-top: 20px;
    }
    
    .form-actions .btn {
        width: 100%;
    }
    
    /* Search Form */
    .search-form {
        flex-direction: column;
        gap: 10px;
    }
    
    .search-form input {
        width: 100%;
    }
    
    /* Buttons */
    .btn {
        padding: 12px 20px;
        font-size: 16px;
        min-height: 44px; /* Touch target size */
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .btn-sm {
        padding: 8px 12px;
        font-size: 13px;
        min-height: 36px;
    }
    
    /* Ações em tabelas mobile */
    .table td:last-child {
        white-space: nowrap;
    }
    
    .table td:last-child .btn {
        margin: 2px;
        padding: 6px 10px;
    }
    
    /* Row/Col */
    .row {
        flex-direction: column;
        gap: 15px;
    }
    
    .col-md-4,
    .col-md-6,
    .col-md-8 {
        flex: 0 0 100%;
        width: 100%;
    }
    
    /* Alerts */
    .alert {
        padding: 12px;
        font-size: 14px;
    }
    
    /* Login Page */
    .login-container {
        padding: 15px;
    }
    
    .login-box {
        padding: 25px 20px;
    }
    
    .login-box h1 {
        font-size: 24px;
    }
    
    .login-box h2 {
        font-size: 18px;
    }
    
    /* Footer */
    .footer {
        padding: 15px;
        font-size: 12px;
    }
}

/* Extra Small Devices */
@media (max-width: 480px) {
    .main-content {
        padding: 10px 5px;
    }
    
    .container {
        padding: 0 5px;
    }
    
    .card {
        padding: 12px;
    }
    
    .page-header h1 {
        font-size: 20px;
    }
    
    .table {
        font-size: 11px;
    }
    
    .table th,
    .table td {
        padding: 6px 4px;
    }
    
    .stat-number {
        font-size: 24px;
    }
}

/* Landscape Mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .login-box {
        padding: 20px;
    }
    
    .nav-menu {
        max-height: calc(100vh - 60px);
        overflow-y: auto;
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn:hover {
        opacity: 1;
    }
    
    .table tbody tr:hover {
        background-color: transparent;
    }
    
    .btn:active {
        opacity: 0.8;
        transform: scale(0.98);
    }
}

/* Footer */
.footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 50px;
}

.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.separator {
    border-top: 1px solid #ddd;
    margin: 20px 0;
}

.btn-success {
    background-color: #2ecc71;
    color: white;
}

.btn-success:hover {
    background-color: #27ae60;
}

.btn-warning {
    background-color: #f39c12;
    color: white;
}

.btn-warning:hover {
    background-color: #e67e22;
}