/* ===================================
   public/css/components/form.css
   Estilos específicos del formulario
   =================================== */

/* Variables específicas del formulario */
:root {
    --form-bg: rgba(255, 255, 255, 0.15);
    --form-border: rgba(255, 255, 255, 0.3);
    --form-focus-bg: rgba(255, 255, 255, 0.2);
    --form-focus-border: rgba(255, 255, 255, 0.6);
    --form-error: #ff6b6b;
    --form-success: #51cf66;
}

/* ===================================
   TRANSICIONES Y ANIMACIONES
   =================================== */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

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

/* ===================================
   MEJORAS DE ACCESIBILIDAD
   =================================== */
.visually-hidden-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus visible para teclado */
.form-group input:focus-visible,
.form-group textarea:focus-visible,
.checkbox-label input[type="checkbox"]:focus-visible {
    outline: 3px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

/* ===================================
   ESTADOS DE CARGA
   =================================== */
.form-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.form-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 30px;
    height: 30px;
    margin: -15px 0 0 -15px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===================================
   TOOLTIPS DE AYUDA
   =================================== */
.form-group {
    position: relative;
}

.form-help {
    position: absolute;
    top: 50%;
    right: 15px;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    cursor: help;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    transition: var(--transition-base);
}

.form-help:hover {
    background: rgba(255, 255, 255, 0.3);
}

.form-help-tooltip {
    position: absolute;
    bottom: calc(100% + 10px);
    right: 0;
    background: rgba(0, 0, 0, 0.9);
    color: var(--color-white);
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 0.875rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.form-help:hover .form-help-tooltip {
    opacity: 1;
}

/* ===================================
   INDICADOR DE FORTALEZA (futuro)
   =================================== */
.password-strength {
    margin-top: 5px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    width: 0;
    transition: width 0.3s ease, background-color 0.3s ease;
}

.password-strength-weak {
    width: 33%;
    background-color: var(--form-error);
}

.password-strength-medium {
    width: 66%;
    background-color: #ffa502;
}

.password-strength-strong {
    width: 100%;
    background-color: var(--form-success);
}

/* ===================================
   MODO OSCURO (futuro)
   =================================== */
@media (prefers-color-scheme: dark) {
    /* Los estilos ya están optimizados para fondo oscuro */
}

/* ===================================
   PRINT STYLES
   =================================== */
@media print {
    .contact-form {
        display: none;
    }
}

/* ===================================
   LINK DE TÉRMINOS
   =================================== */
.terms-link {
    color: inherit;
    text-decoration: underline;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.terms-link:hover {
    opacity: 0.8;
}