/* === MEJORAS UI GENERADAS AUTOMÁTICAMENTE === */

/* Reset y mejoras base */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Selección de texto */
::selection {
    background-color: var(--primary, #667eea);
    color: white;
}

/* Scrollbar moderno */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f3f5;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary, #adb5bd);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary, #868e96);
}

/* === MEJORAS EN BOTONES === */
.btn {
    position: relative;
    overflow: hidden;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateZ(0);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn:active {
    transform: translateY(0);
}

/* Efecto Ripple para botones */
.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::after {
    width: 300px;
    height: 300px;
}

/* === MEJORAS EN FORMULARIOS === */
.form-control {
    transition: all 0.2s ease;
    border-width: 2px;
}

.form-control:focus {
    transform: translateY(-1px);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.form-control:disabled, .form-control[readonly] {
    background-color: #f8f9fa;
    opacity: 0.7;
}

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

.form-group label {
    transition: all 0.2s ease;
    pointer-events: none;
}

.form-control:focus + label,
.form-control:not(:placeholder-shown) + label {
    transform: translateY(-18px) scale(0.85);
    color: var(--primary, #667eea);
    font-weight: 600;
}

/* === MEJORAS EN TARJETAS === */
.card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backface-visibility: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 20px rgba(0,0,0,0.12);
}

.card-header {
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

/* === ANIMACIONES Y MICROINTERACCIONES === */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Clases utilitarias */
.animate-fade-in {
    animation: fadeIn 0.4s ease forwards;
}

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

.animate-shake {
    animation: shake 0.4s ease;
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}