:root {
    --primary-blue: #007BFF;
    --primary-blue-hover: #0056b3;
    --secondary-gray: #6c757d;
    --background-color: #f4f6f9;
    --card-background: #ffffff;
    --text-color: #333;
    --light-text-color: #666;
    --border-color: #e0e0e0;
    --success-green: #28a745;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 1rem;
}

/* === POPUPS === */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 1rem;
}

.popup-overlay.active {
    display: flex;
}

.popup-card {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    text-align: center;
    max-width: 500px;
    animation: fadeIn 0.3s ease-out;
}

.popup-card h1 {
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

.popup-card p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
    color: var(--light-text-color);
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}


/* === CONTAINER PRINCIPAL E CARD === */
.main-container {
    width: 100%;
    max-width: 600px;
    display: none;
}

.card {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    width: 100%;
}

#progress-bar-container {
    width: 100%;
    background-color: var(--border-color);
    border-radius: 5px;
    margin-bottom: 1.5rem;
    height: 10px;
}

#progress-bar {
    width: 0%;
    height: 100%;
    background-color: var(--success-green);
    border-radius: 5px;
    transition: width 0.3s ease-in-out;
}

#question-text {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

#question-description {
    font-size: 1rem;
    color: var(--light-text-color);
    margin-bottom: 2rem;
    line-height: 1.5;
}


/* === OPÇÕES E INPUTS === */
.options-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.option-label {
    display: block;
    background-color: var(--background-color);
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1rem;
}

.option-label:hover {
    border-color: var(--primary-blue);
}

input[type="radio"], input[type="checkbox"] {
    display: none;
}

input[type="radio"]:checked + .option-label,
input[type="checkbox"]:checked + .option-label {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
    color: white;
}

/* Ranking */
.ranking-item {
    padding: 1rem;
    background-color: #fff;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: grab;
    user-select: none;
}
.ranking-item.dragging {
    opacity: 0.5;
    background: #eaf5ff;
}
.ranking-number {
    font-weight: 700;
    color: var(--primary-blue);
    font-size: 1.2rem;
}

/* Tabela de Exemplo */
.spec-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}
.spec-table th, .spec-table td {
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    text-align: left;
}
.spec-table th {
    background-color: var(--background-color);
}
.spec-table strong {
    font-weight: 700;
}


/* === BOTÕES === */
.button-group {
    display: flex;
    gap: 1rem;
}

.btn {
    flex-grow: 1;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

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

.btn-secondary {
    background-color: #e9ecef;
    color: var(--secondary-gray);
    border: 2px solid #e9ecef;
}

.btn-secondary:hover {
    background-color: #dee2e6;
    border-color: #dee2e6;
}

.btn-secondary.hidden {
    display: none;
}

/* === Adição para Opção de Pular Pergunta === */
.skip-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    color: var(--light-text-color);
    font-size: 0.9rem;
}

.skip-option input[type="checkbox"] {
    display: inline-block; 
    width: 1.2em;
    height: 1.2em;
    cursor: pointer;
}

textarea:disabled {
    background-color: #f0f0f0;
    cursor: not-allowed;
}
/* === Adição para Pergunta em Grade (Utilidade) === */
.grid-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.grid-row {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.grid-label {
    font-weight: 500;
}

.grid-scale {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--background-color);
    padding: 0.5rem;
    border-radius: 8px;
}

.grid-radio-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-grow: 1;
}

.grid-radio-wrapper label {
    padding: 0.75rem 0.5rem;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
}

.grid-radio-wrapper input[type="radio"]:checked + label {
    background-color: var(--primary-blue);
    color: white;
}