/* 
 * UNC Website - Professional Enhancements
 * Mejoras adicionales para una apariencia más elegante y profesional
 */

/* Variables CSS adicionales para consistencia */
:root {
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 20px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

/* Tipografía profesional mejorada */
.display-1, .display-2, .display-3 {
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.lead {
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-light);
}

/* Botones con estados mejorados */
.btn {
    font-weight: 600;
    letter-spacing: 0.025em;
    border-radius: var(--border-radius-md);
    padding: 0.75rem 1.5rem;
    transition: all var(--transition-normal);
    border: none;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: all 0.6s ease;
    z-index: 1;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
}

.btn-primary:hover {
    background: var(--gradient-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.4);
    color: white;
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.3);
}

.btn-accent {
    background: var(--gradient-accent);
    color: white;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.btn-accent:hover {
    background: var(--gradient-accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
    color: white;
}

/* Loading states */
.btn[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn.loading {
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

/* Cards con sombras profesionales */
.card-professional {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: 
        0 1px 3px rgba(0, 0, 0, 0.05),
        0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-normal);
    overflow: hidden;
    position: relative;
}

.card-professional:hover {
    transform: translateY(-4px);
    box-shadow: 
        0 4px 6px rgba(0, 0, 0, 0.05),
        0 10px 15px rgba(0, 0, 0, 0.1),
        0 20px 40px rgba(0, 0, 0, 0.1);
}

.card-professional::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.card-professional:hover::before {
    transform: scaleX(1);
}

/* Badges y etiquetas */
.badge-custom {
    background: var(--gradient-accent);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.025em;
    box-shadow: 0 2px 10px rgba(245, 158, 11, 0.3);
}

.badge-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.4rem 0.9rem;
}

/* Formularios mejorados */
.form-group-enhanced {
    margin-bottom: var(--spacing-md);
    position: relative;
}

.form-control-enhanced {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 1rem 1.25rem;
    font-size: 1rem;
    transition: all var(--transition-normal);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
}

.form-control-enhanced:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.25rem rgba(245, 158, 11, 0.1);
    transform: translateY(-1px);
    background: white;
    outline: none;
}

.form-control-enhanced::placeholder {
    color: var(--text-light);
    opacity: 0.7;
}

/* Labels flotantes */
.form-floating-enhanced {
    position: relative;
}

.form-floating-enhanced label {
    position: absolute;
    top: 1rem;
    left: 1.25rem;
    color: var(--text-light);
    font-size: 1rem;
    font-weight: 500;
    transition: all var(--transition-normal);
    pointer-events: none;
    z-index: 2;
}

.form-floating-enhanced input:focus + label,
.form-floating-enhanced input:not(:placeholder-shown) + label {
    top: -0.5rem;
    left: 1rem;
    font-size: 0.85rem;
    color: var(--accent-color);
    background: white;
    padding: 0 0.5rem;
}

/* Alertas profesionales */
.alert-professional {
    border: none;
    border-radius: var(--border-radius-md);
    padding: 1.25rem 1.5rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-left: 4px solid;
}

.alert-success-pro {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border-left-color: #22c55e;
    color: #166534;
}

.alert-info-pro {
    background: linear-gradient(135deg, #f0f9ff 0%, #dbeafe 100%);
    border-left-color: #3b82f6;
    color: #1e40af;
}

.alert-warning-pro {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border-left-color: #f59e0b;
    color: #92400e;
}

/* Iconos con animaciones */
.icon-animated {
    transition: all var(--transition-normal);
}

.icon-animated:hover {
    transform: scale(1.1) rotate(5deg);
    color: var(--accent-color);
}

.icon-pulse {
    animation: pulse 2s infinite;
}

.icon-bounce {
    animation: bounce 1s infinite;
}

/* Separadores elegantes */
.divider-elegant {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    margin: var(--spacing-xl) 0;
}

.divider-gradient {
    height: 2px;
    background: var(--gradient-primary);
    margin: var(--spacing-lg) 0;
    border-radius: 1px;
}

/* Texto con gradientes */
.text-gradient-primary {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.text-gradient-accent {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* Números y estadísticas */
.stat-number {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Testimonios mejorados */
.testimonial-enhanced {
    position: relative;
    padding: var(--spacing-xl);
    background: var(--gradient-card);
    border-radius: var(--border-radius-xl);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
}

.testimonial-enhanced::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: var(--spacing-lg);
    font-size: 4rem;
    color: var(--accent-color);
    font-family: serif;
    opacity: 0.3;
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
    margin-right: var(--spacing-md);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: var(--spacing-xl);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.75rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent-color);
    box-shadow: 0 0 0 4px white, 0 0 0 6px var(--accent-color);
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0,0,0);
    }
    40%, 43% {
        transform: translate3d(0, -10px, 0);
    }
    70% {
        transform: translate3d(0, -5px, 0);
    }
    90% {
        transform: translate3d(0, -2px, 0);
    }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utilidades de spacing */
.m-xs { margin: var(--spacing-xs); }
.m-sm { margin: var(--spacing-sm); }
.m-md { margin: var(--spacing-md); }
.m-lg { margin: var(--spacing-lg); }
.m-xl { margin: var(--spacing-xl); }

.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

/* Responsive utilities */
@media (max-width: 768px) {
    .btn {
        padding: 0.65rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .testimonial-enhanced {
        padding: var(--spacing-lg);
    }
    
    .timeline {
        padding-left: var(--spacing-lg);
    }
}

/* Print styles */
@media print {
    .btn, .nav, .navbar, .hero-section {
        display: none !important;
    }
    
    .section-padding {
        padding: 1rem 0 !important;
    }
    
    * {
        color: black !important;
        background: white !important;
        box-shadow: none !important;
    }
}