/* Estilos gerais */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    line-height: 1.6;
}

/* Header */
header {
    background: linear-gradient(135deg, #0d6efd 0%, #0b5ed7 100%);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* Cards */
.card {
    border: none;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.card-header {
    border-radius: 12px 12px 0 0 !important;
    border-bottom: none;
    padding: 1.25rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Form Check Cards */
.form-check-card {
    margin-bottom: 1rem;
}

.form-check-card .form-check-input {
    display: none;
}

.form-check-card .form-check-label {
    cursor: pointer;
    width: 100%;
    margin-bottom: 0;
}

.form-check-card .card {
    transition: all 0.3s ease;
    border: 2px solid #e9ecef;
}

.form-check-card .card:hover {
    border-color: #0d6efd;
    transform: translateY(-2px);
}

.form-check-card .form-check-input:checked + .form-check-label .card {
    border-color: #0d6efd;
    background-color: rgba(13, 110, 253, 0.05);
    box-shadow: 0 4px 15px rgba(13, 110, 253, 0.2);
}

.form-check-card .card-body {
    padding: 1.25rem;
}

/* Form Controls */
.form-control {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-control-lg {
    padding: 0.75rem 1rem;
    font-size: 1.1rem;
}

.input-group-text {
    background-color: #f8f9fa;
    border: 2px solid #e9ecef;
    border-left: none;
    border-radius: 0 8px 8px 0;
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #0d6efd 0%, #0b5ed7 100%);
    border: none;
    box-shadow: 0 4px 15px rgba(13, 110, 253, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0b5ed7 0%, #0a58ca 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(13, 110, 253, 0.4);
}

/* Results */
.result-item {
    text-align: center;
    padding: 1rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 8px;
    margin-bottom: 1rem;
}

.result-label {
    font-size: 0.9rem;
    color: #6c757d;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.result-value {
    font-size: 2rem;
    font-weight: 700;
    color: #212529;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
    .container-fluid {
        padding: 0;
    }
    
    header {
        text-align: center;
    }
    
    .result-value {
        font-size: 1.5rem;
    }
    
    .card-body {
        padding: 1rem;
    }
}

/* Loading state */
.btn-loading {
    position: relative;
    color: transparent !important;
}

.btn-loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Tooltips and help text */
.form-text {
    font-size: 0.875rem;
    color: #6c757d;
    margin-top: 0.5rem;
}

/* Alert customizations */
.alert {
    border-radius: 8px;
    border: none;
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    color: #856404;
}

/* Footer */
footer {
    background: linear-gradient(135deg, #212529 0%, #343a40 100%);
}

/* Sidebar cards */
.col-lg-4 .card {
    position: sticky;
    top: 20px;
}

/* Icon styling */
.fa-2x {
    font-size: 2em;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}