:root {
    --primary-color: #031d5b;
    --secondary-color: #4F80FF;
    --text-color: #333;
    --bg-color: #f4f6f9;
    --white: #ffffff;
    --border-color: #ddd;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    min-height: 100vh;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* Login */
.login-container {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.login-box {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    width: 400px;
    text-align: center;
}

.login-box img {
    max-width: 150px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 16px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s;
}

.btn:hover {
    background-color: #02123a;
}

.btn-secondary { background-color: var(--secondary-color); }
.btn-success { background-color: var(--success); }
.btn-danger { background-color: var(--danger); }

/* Layout */
.sidebar {
    width: 250px;
    background-color: var(--primary-color);
    color: var(--white);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100%;
    transition: width 0.3s;
}

.sidebar-header {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header img {
    max-width: 80%;
}

.sidebar-menu {
    flex: 1;
    padding: 20px 0;
}

.sidebar-menu a {
    display: block;
    padding: 15px 20px;
    color: rgba(255,255,255,0.8);
    transition: all 0.3s;
}

.sidebar-menu a:hover, .sidebar-menu a.active {
    background-color: var(--secondary-color);
    color: var(--white);
}

.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 20px;
    transition: margin-left 0.3s;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    background: var(--white);
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

/* Dashboard Cards */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.card {
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.card h3 {
    margin-bottom: 10px;
    color: var(--text-color);
    font-size: 1rem;
    opacity: 0.7;
}

.card .value {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
}

.card.green .value { color: var(--success); }
.card.red .value { color: var(--danger); }
.card.blue .value { color: var(--secondary-color); }

/* Tables */
.table-container {
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

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

th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: var(--primary-color);
}

tr:hover { background-color: #f1f1f1; }

.status-badge {
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.85rem;
    color: white;
}

.status-pendente, .status-nao_lido { background-color: var(--warning); color: #333; }
.status-pago, .status-concluido, .status-lido { background-color: var(--success); }
.status-atrasado { background-color: var(--danger); }
.status-em_andamento { background-color: var(--info); }

/* Forms & Inputs */
.input-group {
    position: relative;
}
.autocomplete-items {
    position: absolute;
    border: 1px solid #d4d4d4;
    border-bottom: none;
    border-top: none;
    z-index: 99;
    top: 100%;
    left: 0;
    right: 0;
}
.autocomplete-items div {
    padding: 10px;
    cursor: pointer;
    background-color: #fff; 
    border-bottom: 1px solid #d4d4d4; 
}
.autocomplete-items div:hover {
    background-color: #e9e9e9; 
}

/* Utilities */
.mb-3 { margin-bottom: 1rem; }
.mt-3 { margin-top: 1rem; }
.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.w-100 { width: 100%; }

/* Dynamic Sites */
.site-input {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar { width: 0; overflow: hidden; }
    .main-content { margin-left: 0; }
    .sidebar.open { width: 250px; }
}