* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: #000;
}

.login-container {
    max-width: 400px;
    margin: 0 auto;
    padding: 2rem;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header .logo {
    width: 100px;
    margin-bottom: 1rem;
}

.login-header h1 {
    color: #fff;
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: #999;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group {
    display: flex;
    flex-direction: column;
}

.input-group label {
    color: #fff;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.input-group input {
    padding: 0.8rem;
    border-radius: 6px;
    border: 1px solid #444;
    background: #111;
    color: #fff;
}

.input-group input:focus {
    outline: none;
    border-color: #00ff94;
    box-shadow: 0 0 0 2px rgba(0, 255, 148, 0.2);
}

.error {
    background: #dc2626;
    color: #fff;
    padding: 0.8rem;
    border-radius: 6px;
    text-align: center;
}

.btn-login {
    padding: 0.8rem;
    border-radius: 6px;
    border: none;
    background: linear-gradient(90deg, #00ff94, #00ccff);
    color: #000;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s;
}

.btn-login:hover {
    transform: translateY(-2px);
}

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

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

.btn-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #000;
    border-top-color: #000;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* -------------------------------------------------------
   RESPONSIVE (MÓVIL PRIMERO / MOBILE FIRST)
---------------------------------------------------------- */

/* Tabletas y móviles en horizontal */
@media (max-width: 768px) {
    .login-container {
        padding: 1.5rem;
        margin: 2rem 1rem;
    }
}

/* Móviles pequenos */
@media (max-width: 480px) {
    .login-container {
        padding: 1rem;
        margin: 1.5rem 0.5rem;
    }

    .login-header .logo {
        width: 80px;
    }

    .login-header h1 {
        font-size: 1.75rem;
    }

    .input-group input {
        padding: 0.7rem;
    }

    .btn-login,
    .btn-login:active,
    .btn-login:hover {
        transform: none;
        /* Evita transformaciones en móviles para mejor UX */
    }
}

@media (max-width: 360px) {
    .login-container {
        padding: 1rem;
        margin: 1.5rem 0.5rem;
    }

    .login-header .logo {
        width: 80px;
    }

    .login-header h1 {
        font-size: 1.75rem;
    }

    .input-group input {
        padding: 0.7rem;
    }

    .btn-login,
    .btn-login:active,
    .btn-login:hover {
        transform: none;
        /* Evita transformaciones en móviles para mejor UX */
    }
}