:root {
    --cf-primary: #2563eb;
    --cf-secondary: #64748b;
    --cf-accent: #10b981;
    --cf-bg: #f8fafc;
    --cf-card-bg: #ffffff;
    --cf-text: #1e293b;
    --cf-border: #e2e8f0;
}

#calculafin-container {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--cf-text);
    max-width: 800px; /* Aumentado para acomodar o grid */
    margin: 20px auto;
    background: var(--cf-bg);
    padding: 20px;
    border-radius: 12px;
}

.cf-card {
    background: var(--cf-card-bg);
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    border: 1px solid var(--cf-border);
}

.cf-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--cf-primary);
    text-align: center;
}

.cf-subtitle {
    font-size: 0.9rem;
    color: var(--cf-secondary);
    text-align: center;
    margin-bottom: 24px;
}

/* Grid Layout para Desktop */
.cf-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

@media (max-width: 600px) {
    .cf-form-grid {
        grid-template-columns: 1fr;
    }
}

.cf-form-group {
    margin-bottom: 0; /* Espaçamento controlado pelo gap do grid */
}

.cf-form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.cf-input, .cf-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--cf-border);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.cf-input:focus, .cf-select:focus {
    outline: none;
    border-color: var(--cf-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.cf-checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 20px 0;
    padding: 12px;
    background: #eff6ff;
    border-radius: 8px;
}

.cf-btn-submit {
    width: 100%;
    background: var(--cf-primary);
    color: white;
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.cf-btn-submit:hover {
    background: #1d4ed8;
}

/* Resultados */
.result-card {
    margin-top: 24px;
    border-top: 4px solid var(--cf-accent);
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.cf-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px dashed var(--cf-border);
}

.cf-row.highlight {
    color: var(--cf-primary);
    font-weight: 600;
}

.cf-total {
    display: flex;
    justify-content: space-between;
    margin-top: 16px;
    padding: 16px;
    background: #ecfdf5;
    border-radius: 8px;
    font-size: 1.25rem;
    color: #065f46;
    border: 1px solid #10b981;
}

.cf-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 20px;
}

@media (max-width: 480px) {
    .cf-actions {
        grid-template-columns: 1fr;
    }
}

.cf-obs {
    font-size: 0.8rem;
    color: var(--cf-secondary);
    margin-top: 12px;
    font-style: italic;
}

.cf-btn-ia {
    width: 100%;
    background: #ff8a65;
    color: white;
    border: none;
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    transition: background 0.2s;
}

.cf-btn-ia:hover {
    background: #f4511e;
}

.cf-btn-whatsapp {
    width: 100%;
    background: #25d366;
    color: white;
    border: none;
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s;
}

.cf-btn-whatsapp:hover {
    background: #128c7e;
    color: white;
}

.cf-ia-box {
    margin-top: 16px;
    padding: 16px;
    background: #fff;
    border-left: 4px solid #8b5cf6;
    font-size: 0.9rem;
    line-height: 1.5;
    box-shadow: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
    scroll-margin-top: 20px; /* Para o scroll suave não ficar colado no topo */
}

/* Responsive */
@media (max-width: 480px) {
    #calculafin-container {
        padding: 10px;
    }
    .cf-card {
        padding: 16px;
    }
}