/* Reseteo básico */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Inter, Arial;
}

/* Ocultar scrollbar visualmente en login (el scroll sigue activo para el parallax) */
html, body {
    scrollbar-width: none;          /* Firefox */
    -ms-overflow-style: none;       /* IE/Edge legacy */
}
html::-webkit-scrollbar,
body::-webkit-scrollbar {
    display: none;                  /* Chrome / Safari / Edge */
    width: 0;
    height: 0;
}

body {
    /* Página alta para habilitar scroll parallax del fondo */
    min-height: 250vh;
    margin: 0;
    background: #E1F6F4;
    overflow-x: hidden;
}

/* Canvas de fondo (creado por Canvallax) — siempre detrás del login y fijo */
canvas.canvallax,
canvas.bg-canvas {
    position: fixed !important;
    top: 0;
    left: 0;
    z-index: -1;
    width: 100vw !important;
    height: 100vh !important;
    pointer-events: none;
}

.container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    max-width: 500px;
    padding: 20px;
    z-index: 1;
}

.login-container {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    padding: 30px;
    transform-origin: center center;
    will-change: transform, opacity;
}

/* === Card baja por el cielo === */
.login-container.descending {
    animation: descendCard 900ms cubic-bezier(.55,.05,.55,1) forwards;
}
@keyframes descendCard {
    0%   { transform: translateY(0)     scale(1);    opacity: 1; }
    60%  { transform: translateY(28vh)  scale(.98);  opacity: .9; }
    100% { transform: translateY(70vh)  scale(.92);  opacity: 0; }
}

/* === Overlay blanco uniforme: TODA la pantalla se vuelve blanca al mismo tiempo === */
.login-overlay-white {
    position: fixed;
    inset: 0;
    background: #ffffff;
    z-index: 5;            /* sobre canvas y card */
    opacity: 0;
    pointer-events: none;
    transition: opacity 900ms cubic-bezier(.55,.05,.55,1);
    will-change: opacity;
}
.login-overlay-white.show {
    opacity: 1;
}
.login-overlay-white.hide-fast {
    transition: opacity 240ms cubic-bezier(.55,.05,.55,1);
    opacity: 0;
}

/* === Zumbido estilo Messenger viejito (oscilación amortiguada con leve rotación) === */
.login-container.shake {
    animation: shakeMessenger 850ms cubic-bezier(.22,.61,.36,1) both;
}
@keyframes shakeMessenger {
    0%   { transform: translate3d(0,    0, 0) rotate(0deg); }
    8%   { transform: translate3d(-12px,0, 0) rotate(-1.6deg); }
    18%  { transform: translate3d( 11px,0, 0) rotate( 1.4deg); }
    30%  { transform: translate3d(-9px, 0, 0) rotate(-1.1deg); }
    44%  { transform: translate3d( 7px, 0, 0) rotate( 0.9deg); }
    58%  { transform: translate3d(-5px, 0, 0) rotate(-0.6deg); }
    72%  { transform: translate3d( 4px, 0, 0) rotate( 0.4deg); }
    86%  { transform: translate3d(-2px, 0, 0) rotate(-0.2deg); }
    100% { transform: translate3d(0,    0, 0) rotate(0deg); }
}

/* Deshabilitar el botón mientras la animación corre */
.login-btn[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header .logo-login {
    display: block;
    margin: 30px auto;
    width: 60%;
    max-width: 280px;
    height: auto;
}

.login-header h2 {
    color: #0A0A0A;
    font-size: 28px;
    margin-bottom: 8px;
}

.login-header p {
    color: #666666;
    font-size: 16px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333333;
    font-weight: 500;
}

.form-group label i {
    margin-right: 8px;
    color: #212121;
}

.form-group input[type="text"], 
.form-group input[type="email"],
.form-group input[type="password"] {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #E0E0E0;
    border-radius: 5px;
    font-size: 16px;
    transition: border 0.3s, box-shadow 0.3s;
    outline: none;
}

.form-group input[type="text"]:focus,
.form-group input[type="password"]:focus {
    border-color: #333333;
    box-shadow: 0 0 0 3px rgba(33, 33, 33, 0.1);
}

.password-container {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #666666;
    transition: color 0.3s;
}

.toggle-password:hover {
    color: #212121;
}

.remember-me {
    display: flex;
    align-items: center;
}

.remember-me input {
    margin-right: 8px;
}

.remember-me label {
    margin: 0;
    font-weight: normal;
}

.login-btn {
    width: 100%;
    padding: 12px 15px;
    background-color: #212121;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-btn i {
    margin-right: 8px;
}

.login-btn:hover {
    background-color: #333333;
}

.login-footer {
    text-align: center;
    margin-top: 25px;
    color: #666666;
    font-size: 14px;
}

.login-link {
    margin-top: 15px;
}

.login-link p{
    text-align: center;
}

.login-link a {
    color: #212121;
    text-decoration: none;
    font-weight: 500;
}

.login-link a:hover {
    text-decoration: underline;
}

.alert {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    display: flex;
    align-items: center;
}

.alert i {
    margin-right: 10px;
    font-size: 18px;
}

.alert-danger {
    background-color: #F8F8F8;
    color: #0A0A0A;
    border-left: 4px solid #0A0A0A;
}

.alert-success {
    background-color: #F8F8F8;
    color: #333333;
    border-left: 4px solid #333333;
}

.alert-warning {
    background-color: #F8F8F8;
    color: #666666;
    border-left: 4px solid #666666;
}

/* Responsive */
@media (max-width: 480px) {
    .container {
        padding: 15px;
    }
    
    .login-container {
        padding: 20px;
    }
    
    .login-header h2 {
        font-size: 24px;
    }
    
    .login-header p {
        font-size: 14px;
    }
}