/* --- Variáveis e Estilos Globais --- */
:root {
    --admin-primary-color: #2E7D32;
    --admin-primary-color-darker: #1b5e20;
    --admin-bg-color: #f0f2f5;
    --admin-card-bg: #fff;
    --admin-text-color: #333;
    --admin-border-color: #ccc;
    --admin-light-border-color: #ddd;
    --admin-table-header-bg: #f2f2f2;
    --admin-table-stripe-bg: #f9f9f9;
    --admin-control-panel-bg: #e9f5e9;
    --admin-control-panel-border: #a3d3a3;
    --admin-header-bg: #333;
    --admin-header-text: #fff;

    /* Cores Semânticas */
    --color-success: #28a745;
    --color-success-darker: #218838;
    --color-danger: #dc3545;
    --color-danger-darker: #c82333;
    --color-info: #007bff;
    --color-info-darker: #0056b3;
    --color-warning: #ffc107;
    --color-warning-darker: #e0a800;
    --color-warning-text: #212529;
    --color-warning-bg-light: #fffbe6;
    --color-neutral: #6c757d;
    --color-neutral-darker: #5a6268;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    background-color: var(--admin-bg-color);
    color: var(--admin-text-color);
}

/* --- Estilos para a Tela de Login --- */
#login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    text-align: center;
}

#login-form {
    padding: 2.5rem;
    background: var(--admin-card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 400px;
}

#login-form h2 {
    margin-bottom: 1.5rem;
    color: var(--admin-primary-color);
    font-family: 'Montserrat', sans-serif;
}

#login-form .form-group {
    margin-bottom: 1.2rem;
    text-align: left;
}

#login-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

#login-form input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--admin-border-color);
    border-radius: 5px;
}

#login-form button {
    width: 100%;
    padding: 12px;
    background-color: var(--admin-primary-color);
    color: var(--admin-header-text);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    transition: background-color 0.3s;
}

#login-form button:hover {
    background-color: var(--admin-primary-color-darker);
}

#error-message {
    color: var(--color-danger);
    margin-top: 1rem;
    font-weight: 500;
    display: none;
}

/* --- Estilos para o Conteúdo do Admin --- */
#admin-content {
    display: none;
}

#admin-content header {
    background-color: var(--admin-header-bg);
    color: var(--admin-header-text);
    padding: 1.5rem 2rem;
    text-align: center;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

#admin-content header h1 {
    margin: 0;
    font-size: 1.8rem;
}

#logout-btn {
    position: absolute;
    right: 2rem;
    background-color: var(--color-danger);
    color: var(--admin-header-text);
    border: none;
    padding: 8px 16px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s;
}

#logout-btn:hover {
    background-color: var(--color-danger-darker);
}

#admin-content main {
    padding: 2rem;
}

.container {
    max-width: 1200px;
    /* Aumentado para acomodar mais colunas */
    margin: 0 auto;
    background: var(--admin-card-bg);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.back-link {
    display: inline-block;
    margin-top: 2rem;
    text-decoration: none;
    color: var(--admin-primary-color);
    font-weight: bold;
}

footer {
    text-align: center;
    margin-top: 2rem;
    padding: 1rem;
    color: #777;
    font-size: 0.9rem;
}

/* --- Estilos para os Painéis de Controle --- */
.controls-panel {
    background-color: var(--admin-control-panel-bg);
    border: 1px solid var(--admin-control-panel-border);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

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

.controls-panel h3 {
    margin: 0 0 0.5rem 0;
}

.button-group {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 0.5rem;
}

#open-inscriptions-btn,
#close-inscriptions-btn,
#export-csv-btn,
#shuffle-btn {
    padding: 10px 20px;
    font-size: 1rem;
    font-weight: bold;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s, opacity 0.3s;
}

/* Buttons with white text */
#open-inscriptions-btn,
#close-inscriptions-btn,
#export-csv-btn {
    color: var(--admin-header-text);
}

#open-inscriptions-btn {
    background-color: var(--color-success);
    /* Verde */
}

#open-inscriptions-btn:hover:not(:disabled) {
    background-color: var(--color-success-darker);
}

#close-inscriptions-btn {
    background-color: var(--color-danger);
    /* Vermelho */
}

#close-inscriptions-btn:hover:not(:disabled) {
    background-color: var(--color-danger-darker);
}

#export-csv-btn {
    background-color: var(--color-info);
}

#shuffle-btn {
    background-color: var(--color-warning);
    color: var(--color-warning-text);
}

#shuffle-btn:hover {
    background-color: var(--color-warning-darker);
}

#open-inscriptions-btn:disabled,
#close-inscriptions-btn:disabled {
    background-color: var(--color-neutral);
    cursor: not-allowed;
    opacity: 0.65;
}

#export-csv-btn:hover {
    background-color: var(--color-info-darker);
}

#status-indicator {
    display: block;
    margin-top: 0.5rem;
    font-weight: bold;
}

/* --- Estilos para a Tabela de Participantes --- */
.participants-section h3 {
    margin-top: 0;
}

.participant-search-input {
    width: 100%;
    padding: 10px;
    margin-bottom: 1.5rem;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
}

.participants-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.participants-table th,
.participants-table td {
    border: 1px solid var(--admin-light-border-color);
    padding: 10px;
    text-align: left;
    vertical-align: middle;
}

.participants-table th {
    background-color: var(--admin-table-header-bg);
    font-weight: bold;
}

.participants-table tr:nth-child(even) {
    background-color: var(--admin-table-stripe-bg);
}

/* Estilos para modo de edição */
.participants-table tr.editing {
    background-color: var(--color-warning-bg-light);
    /* Amarelo claro para destacar a linha em edição */
}

.participants-table tr.editing input {
    width: 100%;
    padding: 6px;
    border: 1px solid var(--admin-border-color);
    border-radius: 4px;
}

.action-cell {
    display: flex;
    gap: 8px;
    white-space: nowrap;
}

.edit-btn,
.save-btn,
.cancel-btn,
.remove-btn {
    color: var(--admin-header-text);
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.edit-btn {
    background-color: var(--color-info);
}

.edit-btn:hover {
    background-color: var(--color-info-darker);
}

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

.remove-btn:hover {
    background-color: var(--color-danger-darker);
}

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

.save-btn:hover {
    background-color: var(--color-success-darker);
}

.cancel-btn {
    background-color: var(--color-neutral);
}

.cancel-btn:hover {
    background-color: var(--color-neutral-darker);
}

/* --- Estilos para a Seção de Grupos --- */
#groups-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #eee;
}

.group-card {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    border-top: 5px solid;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.group-card h4 {
    margin-top: 0;
    font-family: 'Montserrat', sans-serif;
    color: #333;
}

.group-card ul {
    list-style-type: none;
    padding: 0;
    text-align: left;
    max-height: 300px;
    /* Para evitar listas muito longas */
    overflow-y: auto;
}

.group-card li {
    padding: 4px 0;
    border-bottom: 1px solid #eee;
}

.group-card li:last-child {
    border-bottom: none;
}

.group-azul {
    border-color: var(--color-info);
}

.group-verde {
    border-color: var(--color-success);
}

.group-vermelho {
    border-color: var(--color-danger);
}

.group-amarelo {
    border-color: var(--color-warning);
}