:root {
    /* Paleta Dark Mode */
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --text-muted: #a0a0a0;
    --border-color: #333333;

    --input-bg: #2c2c2c;
    --input-text: #ffffff;

    --header-bg: #000000;
    --header-text: #ffffff;

    --primary: #0d6efd;
    --primary-hover: #0b5ed7;

    --green: #2ecc71;
    --red: #e74c3c;
    --table-hover: #252525;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 98%;
    margin: 20px auto;
    flex: 1;
}

/* --- Header & Controls (AJUSTADO) --- */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding: 15px 20px;
    /* Aumentei levemente o padding */
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    flex-wrap: wrap;
    /* Permite quebrar linha em telas muito pequenas */
    gap: 15px;
}

/* Novo estilo para alinhar os botões à direita */
.controls {
    display: flex;
    align-items: center;
    gap: 10px;
    /* Espaço uniforme entre todos os elementos */
    flex-wrap: wrap;
    /* Segurança para mobile */
}

h1 {
    margin: 0;
    font-size: 1.5rem;
    white-space: nowrap;
}

select {
    padding: 10px 12px;
    /* Ajustado para bater altura com botões */
    border-radius: 4px;
    background-color: var(--input-bg);
    color: var(--input-text);
    border: 1px solid var(--border-color);
    cursor: pointer;
}

/* --- Estilos de Login --- */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

.login-container {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.5);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-header {
    margin-bottom: 30px;
}

.login-header i {
    color: var(--primary);
    margin-bottom: 10px;
}

.login-header p {
    color: var(--text-muted);
}

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

.form-group input {
    width: 100%;
    padding: 12px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 5px;
    box-sizing: border-box;
}

.btn-block {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
}

.error-text {
    color: var(--red);
    margin-top: 10px;
    font-size: 0.9rem;
}

/* --- Dashboard --- */
.dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.big-number {
    font-size: 1.8rem;
    font-weight: bold;
    margin-top: 10px;
}

.subtext {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.number-positive {
    color: var(--green);
    font-weight: bold;
    font-size: 1.4rem;
}

.number-negative {
    color: var(--red);
    font-weight: bold;
    font-size: 1.4rem;
}

/* --- Tabela --- */
.table-container {
    overflow-x: auto;
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 1200px;
}

th,
td {
    border: 1px solid var(--border-color);
    padding: 10px;
    text-align: center;
}

th {
    background-color: #000;
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 10;
}

tr:hover {
    background-color: var(--table-hover);
}

/* Inputs na tabela */
.cell-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

input.time-input {
    width: 60px;
    background-color: transparent;
    border: 1px solid transparent;
    color: var(--text-color);
    text-align: center;
    border-radius: 4px;
}

input.time-input:hover,
input.time-input:focus {
    background-color: var(--input-bg);
    border-color: var(--border-color);
}

/* Sinais */
.signal-toggle {
    cursor: pointer;
    font-weight: bold;
    width: 20px;
    user-select: none;
}

.signal-pos {
    color: var(--green);
}

.signal-neg {
    color: var(--red);
}

/* Totais Coloridos */
.total-neg {
    color: var(--red);
    font-weight: bold;
}

.total-pos {
    color: var(--green);
    font-weight: bold;
}

/* --- Botões Gerais (AJUSTADO) --- */
button {
    cursor: pointer;
    border: none;
    border-radius: 4px;
    padding: 10px 16px;
    /* Aumentei levemente para igualar ao input */
    font-size: 0.9rem;
    transition: opacity 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    /* Espaço entre ícone e texto */
}

button:hover {
    opacity: 0.9;
}

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

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

.btn-save {
    background-color: var(--green);
    color: white;
    width: 100%;
    margin-top: 15px;
    padding: 12px;
}

/* Grupo de botões (Backup/Restore) - AJUSTADO */
.btn-secondary {
    background-color: #495057;
    /* Cinza um pouco mais escuro para combinar */
    color: white;
}

.btn-secondary:hover {
    background-color: #6c757d;
}

.btn-group {
    display: flex;
    gap: 5px;
    /* Removida a margem manual que causava desalinhamento */
}

/* --- Modal --- */
.modal {
    display: none;
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(3px);
}

.modal-content {
    background-color: var(--card-bg);
    color: var(--text-color);
    margin: 10% auto;
    padding: 30px;
    border: 1px solid var(--border-color);
    width: 350px;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.modal-content input {
    width: 100%;
    margin-top: 10px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    padding: 10px;
    color: white;
}

.close {
    float: right;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-muted);
}

.close:hover {
    color: white;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    margin-top: 20px;
    background-color: var(--card-bg);
}