/* Cores da UnB */
:root {
    --azul-unb: #003366;
    --verde-unb: #006633;
    --branco: #ffffff;
    --cinza-claro: #f8f9fa;
    --cinza-medio: #6c757d;
    --cinza-escuro: #343a40;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--cinza-escuro);
    background-color: var(--cinza-claro);
}

/* Header */
.header {
    background-color: var(--azul-unb);
    color: var(--branco);
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    height: 50px;
    width: auto;
}

.site-title {
    font-size: 1.5rem;
    font-weight: bold;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Navegação */
.navbar {
    background-color: var(--verde-unb);
    padding: 0.5rem 0;
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    flex-wrap: wrap;
}

.nav-item a {
    color: var(--branco);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.nav-item a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.nav-item.active a {
    background-color: rgba(255, 255, 255, 0.3);
}

/* Container principal */
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.main-content {
    background-color: var(--branco);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

/* Títulos */
.page-title {
    color: var(--azul-unb);
    font-size: 2rem;
    margin-bottom: 1.5rem;
    border-bottom: 3px solid var(--verde-unb);
    padding-bottom: 0.5rem;
}

.section-title {
    color: var(--azul-unb);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* Cards */
.card {
    background-color: var(--branco);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 1rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.card-header {
    color: var(--azul-unb);
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.card-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--verde-unb);
    text-align: center;
}

/* Botões */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background-color: var(--azul-unb);
    color: var(--branco);
}

.btn-primary:hover {
    background-color: #002244;
    color: var(--branco);
}

.btn-secondary {
    background-color: var(--verde-unb);
    color: var(--branco);
}

.btn-secondary:hover {
    background-color: #005522;
    color: var(--branco);
}

.btn-danger {
    background-color: #dc3545;
    color: var(--branco);
}

.btn-danger:hover {
    background-color: #c82333;
}

.btn-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

/* Formulários */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--azul-unb);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--azul-unb);
    box-shadow: 0 0 0 2px rgba(0, 51, 102, 0.2);
}

.form-filters {
    background-color: var(--cinza-claro);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.filters-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    align-items: end;
}

/* Tabelas */
.table-responsive {
    overflow-x: auto;
    margin-bottom: 1rem;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--branco);
}

.table th,
.table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.table th {
    background-color: var(--azul-unb);
    color: var(--branco);
    font-weight: 600;
}

.table tbody tr:hover {
    background-color: var(--cinza-claro);
}

/* Paginação */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.pagination a,
.pagination span {
    padding: 0.5rem 1rem;
    border: 1px solid #ddd;
    text-decoration: none;
    color: var(--azul-unb);
    border-radius: 4px;
}

.pagination a:hover {
    background-color: var(--azul-unb);
    color: var(--branco);
}

.pagination .current {
    background-color: var(--azul-unb);
    color: var(--branco);
}

/* Memorandos Grid */
.memorandos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.memorando-item {
    aspect-ratio: 1;
    border: 2px solid #ddd;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: var(--branco);
}

.memorando-item:hover {
    border-color: var(--azul-unb);
}

.memorando-item.disponivel {
    color: var(--azul-unb);
    border-color: var(--azul-unb);
}

.memorando-item.utilizado {
    background-color: var(--cinza-medio);
    color: var(--branco);
    border-color: var(--cinza-medio);
}

/* Messages */
.messages {
    margin-bottom: 2rem;
}

.message {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.message.info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Footer */
.footer {
    background-color: var(--azul-unb);
    color: var(--branco);
    padding: 2rem 0 1rem;
    margin-top: 3rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.footer-info {
    margin-bottom: 1rem;
}

.footer-contacts {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.footer-contact {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Login Form */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--azul-unb), var(--verde-unb));
}

.login-card {
    background-color: var(--branco);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-logo {
    height: 80px;
    margin-bottom: 2rem;
}

.login-title {
    color: var(--azul-unb);
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

/* Responsividade */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .main-content {
        padding: 1.5rem;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .filters-row {
        grid-template-columns: 1fr;
    }
    
    .memorandos-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    }
    
    .footer-contacts {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 1.5rem;
    }
    
    .login-card {
        padding: 2rem;
        margin: 1rem;
    }
    
    .table {
        font-size: 0.9rem;
    }
    
    .memorandos-grid {
        grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
        gap: 0.5rem;
    }
}