:root {
    --marwen-yellow: #ffb81c;
    --marwen-dark: #1a1e23;
    --text-gray: #a0a0a0;
    --transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body.login-body {
    font-family: 'Inter', sans-serif;
    background-color: var(--marwen-dark);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 20px;
}

.login-card {
    background: #23282f;
    padding: 50px 40px;
    border-radius: 30px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.4);
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition);
}

.login-card.active {
    opacity: 1;
    transform: translateY(0);
}

.back-link {
    color: var(--marwen-yellow);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    display: block;
    margin-bottom: 20px;
}

.login-header h1 {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 0.85;
    letter-spacing: -3px;
    margin-bottom: 15px;
}

.login-header h1 span {
    color: var(--marwen-yellow);
}

.login-header p {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-bottom: 40px;
    line-height: 1.4;
}

/* Formulario */
.input-group {
    margin-bottom: 25px;
}

.input-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 8px;
    letter-spacing: 1px;
    color: var(--text-gray);
}

.input-group input {
    width: 100%;
    padding: 16px;
    background: #1a1e23;
    border: 2px solid #2d343c;
    border-radius: 12px;
    color: white;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.input-group input:focus {
    outline: none;
    border-color: var(--marwen-yellow);
    background: #1f242b;
}

.btn-submit {
    width: 100%;
    padding: 18px;
    background: var(--marwen-yellow);
    color: var(--marwen-dark);
    border: none;
    border-radius: 12px;
    font-weight: 900;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 10px;
}

.btn-submit:hover {
    transform: scale(1.02);
    filter: brightness(1.1);
}

.error-msg {
    margin-top: 20px;
    background: rgba(255, 0, 0, 0.1);
    color: #ff5f5f;
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 700;
}

/* --- RESPONSIVIDAD PARA MÓVILES --- */
@media (max-width: 480px) {
    .login-container {
        padding: 15px;
    }

    .login-card {
        padding: 40px 25px; /* Reducción de padding para ganar espacio en pantallas pequeñas */
        border-radius: 20px;
    }

    .login-header h1 {
        font-size: 2.8rem; /* Tamaño de fuente más manejable para celular */
        letter-spacing: -2px;
    }

    .login-header p {
        font-size: 0.85rem;
        margin-bottom: 30px;
    }

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

    .btn-submit {
        padding: 16px;
        font-size: 0.85rem;
    }
}