/*
 * =========================================
 * HOJA DE ESTILOS - LOGIN Y REGISTRO
 * =========================================
 */

:root {
    --rosa: #ff3c8d;
    --celeste: #00c6ff;
    --amarillo: #ffeb3b;
    --naranja: #ff8c00;
    --morado: #7b2ff7;
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, var(--celeste), var(--rosa), var(--amarillo));
    background-size: 300% 300%;
    animation: fondo 10s ease infinite;
    /* Usamos min-height para que se ajuste en móviles, 
      pero height para pantallas grandes
    */
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

@media (min-width: 768px) {
    body {
        height: 100vh;
        overflow: hidden;
    }
}


@keyframes fondo {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Manchas decorativas (reutilizadas de tu style.css) */
.paint {
    position: absolute;
    background-repeat: no-repeat;
    background-size: contain;
    z-index: 0;
    opacity: 0.9;
    pointer-events: none;
    background-image: url('../img/mancha.webp');
}
.paint.top-left {
    top: -60px;
    left: -20px;
    width: 250px;
    height: 250px;
}
.paint.bottom-right {
    bottom: -70px;
    right: -50px;
    width: 220px;
    height: 220px;
}


/* Tarjeta de Login */
.login-card, .register-card, .recover-card {
    background: #ffffffdd;
    padding: 40px 35px;
    border-radius: 20px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    width: 100%;
    max-width: 420px;
    z-index: 2;
    position: relative;
    animation: subir 1s ease-out;
    margin: 20px 0; /* Margen para móviles */
}

@keyframes subir {
    from { transform: translateY(40px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.top-logo {
    width: 160px;
    display: block;
    margin: 0 auto 15px auto;
}

.title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    color: var(--morado);
    margin-bottom: 25px;
}

label {
    font-weight: 600;
    color: var(--celeste);
}

.form-control {
    border: 2px solid #ccc;
    border-radius: 10px;
    padding: 10px;
}

.form-control:focus {
    border-color: var(--rosa);
    box-shadow: 0 0 10px rgba(255, 60, 141, 0.3);
}

.btn-purple {
    background: linear-gradient(90deg, var(--morado), var(--rosa));
    color: white;
    border-radius: 10px;
    width: 100%;
    font-size: 18px;
    font-weight: bold;
    padding: 10px;
    transition: transform 0.2s ease;
    border: none;
}

.btn-purple:hover {
    transform: scale(1.03);
}

.links {
    text-align: center;
    margin-top: 12px;
    font-size: 14px;
    font-weight: bold;
}

.links a {
    color: var(--morado);
    text-decoration: none;
    transition: color 0.2s;
}

.links a:hover {
    color: var(--rosa);
}

/* --- NUEVOS ESTILOS (Botón de Retroceder) --- */
.btn-back {
    position: absolute;
    top: 25px;
    left: 25px;
    z-index: 10;
    color: white;
    font-size: 2.5rem; /* Icono grande */
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease;
    text-shadow: 0 2px 5px rgba(0,0,0,0.3);
}
.btn-back:hover {
    color: var(--amarillo);
    transform: scale(1.1);
}

/* --- NUEVOS ESTILOS (Botón Ver/Ocultar Contraseña) --- */
.password-wrapper {
    position: relative;
}
.password-toggle-btn {
    position: absolute;
    top: 50%;
    right: 5px; /* Ajuste de posición */
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #aaa;
    cursor: pointer;
    padding: 10px;
    z-index: 3;
    display: flex; /* Para centrar el icono */
    align-items: center;
}
.password-toggle-btn:hover {
    color: var(--morado);
}
/* Hacemos espacio en el input para el botón */
.form-control.input-password {
    padding-right: 45px; 
}
/*
 * =========================================
 * ESTILOS DE VALIDACIÓN (¡IMPORTANTE!)
 * =========================================
 */

.invalid-feedback {
    display: block !important; /* Fuerza a que el mensaje se muestre */
    color: var(--rosa) !important; /* Color de error */
    font-weight: 600;
    text-align: left; /* Alinea el error a la izquierda */
    font-size: 0.9rem;
}

.is-invalid {
    border-color: var(--rosa) !important; /* Pone el borde del input en rosa */
    box-shadow: 0 0 10px rgba(255, 60, 141, 0.3) !important; /* Sombra rosa */
}