/* 🔥 RESET */
* {
    box-sizing: border-box;
}

/* BODY */
body {
    background-color: #0f1a0f;
    font-family: Arial, sans-serif;
    color: #d4d4d4;
    margin: 0;
    padding: 0;
}

/* CONTENEDOR */
.login-box {
    width: 95%;
    max-width: 900px;
    margin: 20px auto;
    padding: 20px;
    background: #1c2b1c;
    border: 2px solid #3a5f3a;
    text-align: center;
    border-radius: 10px;
}

/* INPUTS */
input, select {
    width: 100%;
    padding: 10px;
    margin: 8px 0;
    background: #0f1a0f;
    border: 1px solid #3a5f3a;
    color: white;
    font-size: 14px;
    border-radius: 5px;
}

/* BOTÓN GLOBAL */
button {
    width: 100%;
    padding: 12px;
    margin-top: 8px;
    background: #3a5f3a;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 14px;
    border-radius: 5px;
}

/* BOTONES LINK */
.btn {
    display: block;
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    background: #3a5f3a;
    color: white !important;
    text-decoration: none;
    border-radius: 5px;
    text-align: center;
    font-weight: bold;
}

/* GRID MESES */
.grid-meses {
    display: grid; /* 🔥 CLAVE */
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

/* TARJETAS */
.mes-card {
    border-radius: 10px;
    padding: 10px;
    text-align: center;
    font-size: 12px;
}

/* SELECT DENTRO TARJETA */
.mes-card select {
    width: 100%;
    padding: 6px;
    font-size: 12px;
}

/* BOTÓN DENTRO TARJETA */
.mes-card button {
    width: 100%; /* 🔥 ahora sí controlado */
    padding: 6px;
    font-size: 12px;
    margin-top: 6px;
}

/* COLORES */
.pagado {
    background: #2ecc71;
}

.pendiente {
    background: #f1c40f;
}

.moroso {
    background: #e74c3c;
}

/* 📱 CELULAR (MODO APP 🔥) */
@media (max-width: 600px) {

    .login-box {
        padding: 10px;
    }

    .grid-meses {
        grid-template-columns: repeat(3, 1fr); /* 🔥 SIEMPRE 3 */
        gap: 6px;
    }

    .mes-card {
        padding: 6px;
        font-size: 11px;
    }

    .mes-card select {
        padding: 5px;
        font-size: 11px;
    }

    .mes-card button {
        padding: 5px;
        font-size: 11px;
    }
}