/* Variables para tema claro/oscuro */
:root {
    --primary: #4361ee;
    --secondary: #3f37c9;
    --success: #4cc9f0;
    --warning: #f72585;
    --danger: #ff4d6d;
    --light: #f8f9fa;
    --dark: #212529;
    --background: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --border-radius: 16px;
    --box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

/* Estilos generales */
body {
    background-color: var(--background);
    color: var(--text-primary);
    font-family: var(--font-family);
    line-height: 1.6;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
    transition: var(--transition);
}

.container {
    max-width: 1200px;
    padding: 0 1rem;
}

/* Animaciones generales */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

/* Header */
header {
    padding: 2rem 0;
    animation: fadeIn 0.8s ease-out forwards;
}

.header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.brand-logo {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary), var(--success));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: pulse 2s infinite;
}

.lead {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Tarjetas */
.card {
    border-radius: var(--border-radius);
    background-color: var(--card-bg);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: none;
    margin-bottom: 2rem;
    overflow: hidden;
    animation: fadeIn 0.5s ease-out forwards;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.card-header {
    font-weight: 600;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-body {
    padding: 2rem;
}

/* Secciones con iconos grandes */
.feature-icon {
    height: 4rem;
    width: 4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary), var(--success));
    color: white;
    animation: float 5s ease-in-out infinite;
}

/* Formulario */
.form-label {
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-control, .form-select {
    border-radius: 12px;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(0, 0, 0, 0.1);
    background-color: #f9fafb;
    transition: var(--transition);
    font-size: 1rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.15);
    outline: none;
    background-color: white;
}

.input-group-text {
    border-radius: 0 12px 12px 0;
    background-color: #f1f5f9;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-left: none;
}

.form-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.form-check-input {
    width: 1.1em;
    height: 1.1em;
    margin-top: 0.25em;
    cursor: pointer;
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.form-check-label {
    cursor: pointer;
}

/* Botones */
.btn {
    border-radius: 12px;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
    font-size: 1rem;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.btn:hover::after {
    animation: ripple 1s ease-out;
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.5;
    }
    100% {
        transform: scale(20, 20);
        opacity: 0;
    }
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: 14px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, #36b37e, #00875a);
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, #00875a, #36b37e);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(54, 179, 126, 0.3);
}

.btn-outline-secondary {
    border: 1px solid #cbd5e0;
    color: var(--text-secondary);
}

.btn-outline-secondary:hover {
    background-color: #f7fafc;
    color: var(--primary);
    transform: translateY(-2px);
}

/* Resultados - Gauge */
.result-gauge {
    position: relative;
    width: 300px;
    margin: 0 auto;
    padding: 1.5rem 0;
}

.gauge-value {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Análisis de Factores de Riesgo */
.risk-factors .badge {
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 500;
}

.badge-high {
    background-color: #fed7d7;
    color: #e53e3e;
}

.badge-moderate {
    background-color: #feebc8;
    color: #dd6b20;
}

/* Recomendaciones */
.recommendations .list-group-item {
    padding: 1rem;
    border: none;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    background-color: #f7fafc;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    transition: var(--transition);
}

.recommendations .list-group-item:hover {
    background-color: #edf2f7;
    transform: translateX(5px);
}

.recommendation-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: #c6f6d5;
    color: #38a169;
}

/* Información sobre la diabetes - Cards con iconos */
.info-card {
    padding: 1.5rem;
    border-radius: 12px;
    background-color: #f7fafc;
    margin-bottom: 1.25rem;
    transition: var(--transition);
}

.info-card:hover {
    background-color: #edf2f7;
    transform: translateY(-3px);
}

.info-card-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.info-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--success));
    color: white;
    font-size: 1.25rem;
}

/* Alertas */
.alert {
    border-radius: 12px;
    padding: 1rem 1.25rem;
    border: none;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.alert-warning {
    background-color: #fffbea;
    color: #975a16;
}

.alert-info {
    background-color: #ebf8ff;
    color: #2c5282;
}

/* Footer personalizado */
.footer {
    background-color: #f1f5f9;
    padding: 2rem 0;
    margin-top: 4rem;
    border-top: 1px solid #e2e8f0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-brand {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary), var(--success));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--primary);
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: white;
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    color: var(--primary);
}

.footer-author {
    margin-top: 1rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.author-name {
    color: var(--primary);
}

/* Efectos de hover para enlaces */
a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--secondary);
}

/* Gráfico de probabilidad mejorado */
.probability-chart-container {
    position: relative;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
}

.chart-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -20%);
    text-align: center;
}

.chart-value {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin: 0;
    background: linear-gradient(135deg, var(--primary), var(--success));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.chart-label-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Modal personalizado */
.modal-content {
    border-radius: 16px;
    border: none;
    overflow: hidden;
}

.modal-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1.5rem 2rem;
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1.5rem 2rem;
}

/* Mejoras responsivas */
@media (max-width: 992px) {
    .card-body {
        padding: 1.5rem;
    }
    
    .brand-logo {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    header {
        padding: 1.5rem 0;
    }
    
    .brand-logo {
        font-size: 2rem;
    }
    
    .lead {
        font-size: 1rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
    }
    
    .feature-icon {
        height: 3rem;
        width: 3rem;
        font-size: 1.25rem;
    }
    
    .result-gauge {
        width: 250px;
    }
}

@media (max-width: 576px) {
    .card-body {
        padding: 1.25rem;
    }
    
    .recommendations .list-group-item {
        padding: 0.75rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Estilos para impresión */
@media print {
    .btn, .footer, .modal, .no-print {
        display: none !important;
    }
    
    body {
        background-color: white;
    }
    
    .container {
        width: 100%;
        max-width: 100%;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid #ddd;
    }
    
    header {
        margin-top: 0 !important;
    }
}